Last month, Fuji PHOTOKINA unveil the new FinePix F31fd, Fujifilm is the first time through the hardware capabilities to achieve the "facial recognition technology" used in portable digital camera. Nikon ENEL5 Battery Charger Today we received the message, this F31 formal listing in mid-November, the official price at about 3200 yuan, is expected to practice in the market price will not exceed 2,800 yuan.
Continue reading "Equipped with high-speed face recognition system " »
"HD" Overview
High-definition video surveillance technology to the rapid development in recent years, mainly because it addresses the people in the normal monitoring process of the "details" to see confused. "HD" or "resolution." The definition of high-definition, for the security industry is a latecomer. From the definition of the first high-definition digital TV, HDTV, also known as "HDTV", Film and Television Engineers by the U.S. public - would determine the standard format for high definition television. Definition television, is the number of horizontal scan lines as measured. Its focus on JVC GR-D796 Battery Charger high-definition classified as follows: 1080i format is the standard digital TV display modes, 1125 vertical scan lines visible vertical scanning lines 1080, 16:9 resolution of 1920 ×1080, interlaced / 60Hz, line frequency of 33.75 KHz.
720p format is the standard digital TV display mode, 750 vertical scan lines, 720 visible vertical scanning lines, 16:9 resolution of 1280 × 720, line by line / 60Hz, line frequency of 45KHz.
1080p format is the standard digital TV display modes, 1125 vertical scan lines visible vertical scanning lines 1080, 16:9 resolution of 1920 × 1080 progressive scan, professional format.
HD TV, this means support for 1080i, 720P and 1080P TV standards.
In the security industry, the traditional monitoring system up to standard-definition, digitally encoded, generally up to 4CIF or D1 resolution, about 44 million pixels, resolution between 300 and 500 lines; high definition network camera IP surveillance, if you want to achieve 800 TV lines of resolution, then the network camera at a resolution of 1280 × 720 to achieve the standard, about 90 million pixels; the use of a 2-megapixel network camera, reached the ultra-high definition image requirements, network camera aspect ratio of 16:9, corresponding to a resolution of 1920 × 1080, aspect ratio of 4:3 of the network camera, corresponding to a resolution of 1600 × 1200. Security industry is to borrow more criteria for the classification of high-definition television, commonly known as "HD" and "SD."
Security market, there have been able to achieve 1080i and 720P resolution network cameras, because the transmission network to provide high-definition video a high protection. Of course, there are high-definition transmission interface with analog cameras, such as a Y / Pb / Pr and VGA interface, the bolt or one machine.
"HD" collection
The effect of high-definition video from HD to ensure the collection of information first, if not the front-end high-definition video capture, can not talk about the back-end high definition results. Both bolt, one machine or network cameras, analog cameras, the principles are the same collection, but the difference between technology and devices.HD video capture is most important is the performance of light-sensitive components, as CCD and CMOS advantages and disadvantages, in the field of high-definition monitor, also have applied. CMOS high-pixel has a certain advantage, while the CCD for better monitoring of the adaptability of the scene. We also wish to set aside disputes, by market demand to determine which one is better.
In short, CCD and CMOS for high-definition monitor market has both applications, CCD from the previous 1 / 4 inch to 1 / 3 inch, 1 / 2 inch or 2 / 3 inch, represents the continuous development of its technology, through the image processing chip, co-ordination to achieve the resolution of 720P or 1080i output. CMOS technology has also been progress in imaging, coupled with its low cost, ease of integration for our customers to accept, CMOS type of surveillance cameras present resolution can reach 1600 × 1200 and above.Similarly, the lens to be able to ensure that the amount of light and angles, but also there is a suitable focus and aperture to match the light-sensitive components of the imaging. Because high-definition video is usually dependent on a focusing operation, the focal length and aperture does not meet the actual demand, high-definition camcorder Wang Ran. Usually in one machine with a high-definition zoom to better reflect the effect.
HD collection that is bound by the development of high-definition video camera, because is not confined to high-definition video processing itself, but more of a definition of market applications.Problems such as high-definition transmission, supporting high-definition equipment problems. Therefore, a high-definition program will be set back from the front-end to high-definition solutions, the lack of a ring, will not achieve true high definition. Currently more tendentious solution that is transmitted via encrypted network to solve the subsequent problems.
"HD" encoding
HD encoding is continuously upgrade our core technologies, we can say good and bad effects of the final video, the largest is dependent encoding technology. HD encoding process is about to capture the HD signal is converted to digital signal encoding and processing through the network for transmission, and general video signal encoding and decoding the same principle. Difference is more focused on video processing chip processing power, which has a high-definition encoding, the output video resolution can reach us into the HD standard.
Currently on the market for encoding processing chip manufacturers have hidden potential competition. TI, Philips, Honeywell, Huawei, Hass and even some of Taiwan's manufacturers, are competing in the security market. Under the SOC architecture for DSP and ASIC solutions are becoming ever more intense competition program in the field of security has also created a subtle opponent. At this point, we do not discuss their advantages and disadvantages, this evaluation by the market. We talk about HD encoding processing capacity. For high-definition encoding, both scenarios are covered in high-definition network cameras, video servers, and even DVR aspects are reflected.
Video processing unit can support H.264MainProfile, BaselineProfile, MJPEG, JPEG and many other real-time encoding and decoding, while also supporting H.264 codec 30fps @ D1, MIPEG, JPEG support up to 300 million pixels of the encoding.H.264MainProfile powerful encoding algorithm greatly improved video quality, and can provide a flexible frame coding or field coding for customer support different display terminals provide a convenient, while the video processing unit also supports dual-stream encoding, that is, MJPEG and H.264 can encode. Graphics processing unit to provide De-interlace processing algorithms, flexible motion detection.
Through efficient coding processing, together with other parts of the communication control planning and design, such as network flexibility, security, stream encapsulation format and transmission capability. And then integrates the monitoring required other I / O interfaces, such as police, traffic control, voice intercom interface with RJ-45 interface for transmission and operation. While coding technology is relatively mature, but for high-definition video processing, capacity and design to be further thought and improve, we require a clear high-definition monitor not only the image, but also the pursuit of frame rate, bit rate to meet the intended needs, but alsoshould consider the cost of storage and network bandwidth issues.Because we are a comprehensive monitoring system, with sufficient emergency response capabilities of the system. Therefore, in high-definition video processing, we should pay more to maintain a calm and reflection.
"Definition" of the transmission and storage
High-definition video transmission, that is, through a specific medium to high-definition video signal transmission to the user.Here's transmission division has two levels, first through digital signal processing code, there is typically transmitted through the network cable, involving LAN, WAN, Internet and other network infrastructure.Under normal circumstances, the transmission of information-rich high-definition video, multi-bandwidth, using the network cable to connect the corresponding bandwidth of Fast or Gigabit.Transmission medium bandwidth is met, while also taking into account the various system interfaces, switching equipment, bridging equipment, not because of bandwidth limitations caused by abnormal high-definition video transmission. Generally in high-definition video stream can be set between 2M-8M, so more applications are among the LAN, through the network over five or six transmission lines.
Also more high-definition video storage means in terms of digital signals, the current through the DVR, NVR or server depend on the convergence of the disk array, or directly IPSAN server architecture such as NAS or a variety of ways. The use of DVR (there are a lot to say DVR NVR or mixed) is the first to introduce a way, it will record, playback, control, browse, network transmission and other functions set a course for high-definition video storage, DVR must have a network signal Enter the function module. But at present between the modules by manufacturers with the limitations of the video source must be compatible with the DVR manufacturers in order to work properly. For Nikon EN-EL10 Battery Charger disk arrays, high-definition video transmission through the back-end server to the client, the server itself, the control software will control the video stream is stored in the server connected directly to the disk array, all the controls, browsing, video playback, alarm and other operations through software for centralized treatment. For NAS and IPSAN way, the first network camera itself should have connected with the NAS server public - meetings and modules, the video stream directly to the NAS server and port to point to store operations, query the playback, NAS server itself is a file sharing server. The video file sharing on the network. All customers are network systems remotely via the network to download high-definition video.
Of course, the above mentioned high-definition network camera is only one way. In addition, the HD one machine or ball machine can also provide high-definition video source signal, high-definition-one through VGA / Component and other interfaces to transmit, the resolution can reach 1080i, and have PTZ capabilities, allow people to better see the details. If the monitor is not very far away, you can directly use component cable, VGA cable transmission, used in the room, video conferencing and other occasions enough to demonstrate their advantages. Here are a few simple interface with high-definition transmission capacity.
Component Video
Component video signal which is what we call the Y / Pb / Pr signal, the separation into three different parts of the basic transmission. Usually green, blue, and red, three component video cable to luminance (Y), and RGB signal to remove the blue and red color difference signal luminance signal (Pb, Pr), respectively, for transmission, maintain the maximum bandwidth of the chrominance channels, avoiding the cumbersome transfer process caused by image distortion. Component Video is an analog signal transmission in one of the most advanced, the effect is the best, compared to S-Video, its bright and colorful, picture sharpness.
VGA terminal
The VGA port is well known asymmetric distribution 15pin connection, which works within the video source images stored in digital form by analog signal converted to analog frequency modulation signal, and then output to the display image. If it is connected to analog display devices (such as ordinary CRT monitor) you do not like to go through other video display terminal as a matrix conversion decoder circuit, if it is connected to digital equipment, you need to display built-in converter, image quality will has declined.
DVI terminal
DVI signal transmission using a completely digital format, to ensure that the video source to display terminal during the transmission of data integrity, you can get faster speeds and clearer images. Therefore, the display terminal with DVI interface is digital display terminal. DVI interface, there are three, namely, DVI-Digital (DVI-D), DVI-Analog (DVI-A) and DVI-Integrated (DVI-I). The difference is that DVI-D only supports digital display device; and DVI-A similar to the VGA port, analog signal transmission; and DVI-I is both digital display and analog display, and can be compatible with DVI-D the equipment.
HDMI terminal
DVI with HDMI interface to avoid too large, can not transmit audio and other shortcomings, HDMI although its maximum transmission speed is less than DVI (DVI up to 8Gbps, HDMI to 5Gbps, the highest-quality HDTV signal transmission needs 2Gbps), but also supports eight channel 96kHz or 192kHz single-channel digital audio transmission (support DolbyDigital / DTS format) without using a separate audio cable. While its cable length can reach more than 20 meters (DVI cable in the image quality will be more than 8 meters).19-pin HDMI interface, on pins and DVI compatible, but with a different package, you can converter compatible with DVI interface.
In short, high-definition video transmission for VGA / DVI / Component / HDMI interface to transfer these types of terms affected by distance is relatively large, in general, lossless transmission distance of ten meters to 20 meters, and the wire is relatively expensive. I believe that this transmission security monitoring in real environmental conditions alone is relatively small. More often used with high-definition video servers to use, high-definition video signal source code through the video server through the network long-distance transmission. Or the direct use of high-definition network cameras for transmission.
"HD" display
For high-definition video, which shows the effect of display devices are also subject to the impact of high-definition video for viewing, can not generally monitor or LCD screen, the display device used must also be able to support the resolution of standard video output. The highest resolution currently on the market display to 1080P, LCD large-screen display also supports high-definition standard, so in the back, generally without decoding processing, and direct the show.One is to store and view a combination of the same. The other hand, for high-definition video itself, inconvenience do the decoding process, decoding process by making the picture quality will decline, but fail to reflect the effect of high-definition, from the view point of view, the need for decoding is not great. Because large-screen or HD monitor via fully meet the needs of the normal view, but also facilitates centralized management.
Therefore, the system architecture, the back-end for high-definition display devices, first to ensure it does not affect the monitoring results, and its supporting server interface type, graphics performance, the resolution of the expansion, among other factors, are considered within the scope. Furthermore, no need to blindly pursue the highest configuration, only the need to support transmission of video resolution format can be, if the video itself is less than 1080P, 1080P monitor is assigned to the waste of resources.
"HD" application
For high-definition video surveillance, the current upward trend in the market, in many projects in the application a million, two megapixels camera is not rare, dare to monitor the use of high-definition video camera as one of Nikon EN-EL3A Battery Charger the conditions is not a whim. But an objective demand for increasingly sophisticated technology and high-definition performance.
A unit of high-definition monitor, for access to staff able to clearly identify its appearance and identity, a clear identification for access to the vehicle license plate number for the staff to be clear violations of its content and detail work. Internal use of the project is, so use the internal LAN network as a monitoring network. 20 Mbps bandwidth for high-definition cameras have been sufficient.
Front-end network cameras megapixels, HD ball machine, high-definition encoder, network monitoring system via the LAN architecture, the back-end centralized management model, from the main server, video server, the alarm server, forwarding servers and other components. Implementation of the network camera to capture high-definition features, see the ball machine and execute a timely response to random motion tracking, and video stored in the memory linked server.
For high-definition monitor, the image clarity is one of the core indicators for high-end HD cameras such as five megapixels camera, usually dealing with the encoding process, because of its large volume of data, and sometimes cause frame rate of less than normal monitoring requirements, in the course of more use in high-definition capture occasions, as well as capture the scene in detail, and even some dedicated camera for HD capture, with the telephoto lens, displaying their ability to capture long-distance high-definition.
Other applications, such as panoramic cameras, some with over ten million pixel camera wide angle lens, placed in the system, used for panoramic surveillance. In a display screen, the same video stream into multiple details of the local monitor screen at the same time, more panoramic and local. Only monitor a large area panoramic, without missing the details, greatly improving the efficiency and quality control.
This model is to address security vulnerabilities monitoring.Traditional low resolution monitor, in order to meet the definition of local details, and increasing costs, increasing the number of cameras, including cameras, ancillary equipment and auxiliary cost increases; wiring, installation and maintenance cost increases later, or the use of head / zoom (PTZ) cameras to zoom in, tracking the target. Global and detailed trade-off, easy to record video leak information. Panoramic high-definition video camera is able to provide each other with panoramic views and details of a new model.
Conclusion
With the increasing development of monitoring technology, high-definition monitoring technology as one of the main directions of development, combined with network technology brings new changes, continues to meet market competition, demand, tends to a rational thought. HD Monitor is in a high-profile, high demand into our vision. In the growing field of monitoring technology, high-definition monitor will also be a shining star, its light to re-examine the world around us.
Currently, friend to buy digital cameras is that more and more, but proper use of the digital camera's friends is not too much, many people mistake in using the method affects the service life of the machine, causing unnecessary losses to friends. Today we'll give you ten of the most common examples to remind everyone how to properly use a digital camera, be careful to make perpetual ship!
First, do not use the fast forward rewind and pause frequently feature
Many friends will often use DV fast forward rewind feature, while looking for some image information is useful, you can do "what you see is what you get". But everyone are know, traditional digital camera is using DV tape as storage media of, so using fast into fast back function Shi actual is in head and tape Zhijian for friction, at this time does not like pour with as tape and head is separate of, tape of Nikon Coolpix S570 Battery Charger high speed running will violent friction head or produced high fever and injury head, head institutions is DV of core devices, it bearing on the recording, and playback of image quality, so remember is not available frequently of using fast into fast back function.
In addition, pausing for as little as possible, because using "pause" when the tape to stop the movement, and the head is still in a State of rotation, fixed scanning tapes repeatedly on the same site, local heating of tape damage, which in turn can damage the delicate head!
Second, do not frequently wipe the lens
In outdoor shooting process, DV lens is always exposed to the air, so it's easy to wash the dust, with the increase in dust, shooting out of the picture appear lower image quality, image spots, low image contrast appears, therefore, be sure to protect the lens of the machine.
However, although the lenses are particularly vulnerable to dirty, wipe the lens but not often, because lenses generally have multilayer coating on the surface, often sponge lens will destroy these coated, it's will spend coated abrasions, lens wipe, if soaked in the dust on the lens is not a lot, generally does not affect image quality.
For ordinary users, we don't expect you can restore to factory new lenses, there have been lessons you will be aware of "lens is always bad as clean as possible, rather than the more polished, the better"! So advise everyone not the last thing to just wipe the lens a little without affecting the dust on it to take effect:)
Third, do not use inferior DV tape
For many digital camera of using who for, DV with is a to often contact to of things, after all DV with is storage by took image of media (unless you with CD or is hard drive type digital camera), if DV with of quality bad, will directly effect shooting figure as of effect and quality, appeared screen intermittent, or off frame and so on cannot save of situation, because digital camera for video or playback Shi, head iron core of 2 a end surface and tape contact, makes magnetic lines formed pathway, for electromagnetic and magnetic electric conversion, If tape often fall off magnetic powder, head end or sticky dust, particles in magnetic powder when oil and other foreign bodies, heads and the tape will not be able to work well with touch, electromagnetic conversion efficiency, poor performance for image effects, clutter, and picture snow, so, buy quality of DV is very necessary.
DV currently on the market with prices at around dozens of renminbi, and for most digital camera enthusiast friends, DV with enough use of about $ 30. But the price of fakes are also quite a lot, that fake DV big harm is likely to dirty camera heads off magnetic powder, collected very easily with the hard drive off frames, or it could not be collected. For inexperienced beginners, it is recommended not to keen on gaining petty gains but feel free to buy, be sure to purchase brands to the formal business of DV tape.
Four, should not be used in high humidity environment
DV fuselage most of constructed are by precision electronic circuit and various processing chip composition, so larger of humidity is DV of killer, although now many manufacturers development of products its fuselage are used has magnesium alloy material, but this just improve has on DV external of protection, internal circuit also is lack necessary of "anti-wet means", time a long, inevitably does not generated mildew, adaptation around-the-clock various bad environment of DV products of launched also remains to be seen time Ah!
If non-to in high wet environment Xia using not, advised members in high wet environment in the shooting best is has drying box (can with sealed of box plus some desiccant), shooting finished timely placed to drying box in, in shooting finished zhihou also don't eager to to machine received good, to first with clean cloth carefully of wipe fuselage appearance, then then placed in has desiccant of box among for save.
Five, do not press hard on the LCD screen
Digital camera of LCD display has gradually replaced has electronic viewfinder became has shooting process in the "viewfinder protagonist", especially in recent years Sony company in its products in the using has unique of touch screen technology, many function are in LCD screen Shang display, as long as in LCD display Shang gently is, is can completed machine of main function operation, for example image play, and program automatically exposure, and stunt effect set and search, function, makes LCD display of function are JVC GZ-MS215 Battery Charger has further of extended, LCD Panel and special coatings are no longer afraid of dust, such as oil, gently wipe can be removed, so many of my friends think LCD is very "durable", often in use too much force, making LCD screens used during compression to serious, doing so will cause irreparable damage to the LCD.
Actually LCD display is very "delicate" of, it of middle contains many glass of and sensitive of electrical components, due to LCD display in has directed layer, it can makes LCD molecular by must direction orientation, but it is very fine of, cannot bear had large of pressure, in violent moved or vibration of process in the on has may damage to display of quality and display of internal LCD molecular, makes display effect large discount. So don't point fingers on the display screen with your hand, do not give the surface a lot of pressure on the LCD, otherwise the consequences would be unthinkable!
Six, not repeatedly use cleaner belt
Since the head bodies is a mechanical device, once the head is covered with dust, there will be video picture quality, also due to dust particles friction damage to heads of DV and DV tape. So, for DV users, you need to make frequent maintenance to DV video magnetic heads, generally used for about 50 hours of DV video head for cleaning.
Cleaning was carefully designed and manufactured to keep head good working state, proper use of a cleaning cartridge does not affect the normal working life from a digital camera, however, if the error using the head cleaning tape will cause head injury, is their most common error using "repeat cleaning", so each time you use when cleaning with do not rewind. So far to have been used to clean the coil to the header, you can then dropped out of use, do not "start again", otherwise they will be brought back into the digital dust on the camera head, repeated pollution caused, that would achieve counterproductive results
Incidentally the correct use of the cleaning method: take your place takes clean release camera videos the same way, and then press the PLAY key, after waiting for up to ten seconds, press the STOP key, remove the cleaning cartridge (no rewinding), if the image does not have a return to normal, you can repeat the previous steps, is very simple:)
Seven, not dirty camera batteries
Digital cameras have marched into the family, many families have a personal little "Digital Imaging Studio", lets make your own DVDs. But, in digital camera of using process in the, we will found such a problem--current digital camera using of General are is price does not robbers of may charging type lithium ion battery, all large production manufacturers in products manual in for how correctly using lithium ion battery is is "statements of very less", many friends from various channel understanding to of using method also not correctly, so many people of random battery using can't too long of time on close to "scrap" has, had to then spent large price purchased second block battery, with added many troubles.
Battery maintenance there are many ways, but most overlooked point is that many people don't pay attention to external clean battery problem! In particular, travel easily when dirty the battery, so may cause the battery to "wastage", in order to avoid problems of loss of power occurred, we must pay attention to keeping both ends of the battery contact points and the clean inside the battery lid. If the surface of the cell was very dirty, so we will use a soft, clean, dry cloth to gently whisk or wipe off the battery, keep the battery clean, it can be very effective for extended battery life.
Eight, the tape should not be long in the warehouse
Some comparison "lazy" of friends like put DV with placed in with warehouse in the does not took out, think as do comparison easy, but because in machine in the tape is open of State, and head has contact, time long has has may makes this paragraph tape deformation, head also Panasonic DMW-BCF10PP Battery Charger may will was tape Shang shedding of magnetic powder lane dirty, so recommendations everyone in shooting ended zhihou also is best to put tape removed to, diligent a little 's:)
Dew, don't let your machine
Many friends have faced machine condensation problems, camera and video camera due to condensation can drum adhesions, automatic protection of camera, video recording button temporarily fail, will not be able to continue shooting at this time, this can damage the head in the past, so how do we avoid dew machine?
Dang to digital camera from cold of local got comparison warm of local Shi, or in rain Hou and high temperature high wet of environment Xia using digital camera Shi, on is easy makes machine occurred knot dew, at this time can first will digital camera loaded in plastic bag in the, then sealed, dang bag within air of temperature reached around environment temperature Shi (General for 1 hours around) then removed plastic bag, such on can effective of prevent knot dew phenomenon of occurred. If condensation has occurred, then do not worry, you can bring the camera exit belt cartridge, put in a dry and ventilated places digital camera plugged in more than one hour, can solve issues in General.
Ten, don't let the Sun lens
We in using DV shooting Shi, on light of master is good or bad, will directly effect to digital video of effect, so many friends are hope in shooting Shi light can strong is, especially in recent years digital camera of CCD photographic components of size more do more small, shooting Shi for light of requirements also increasingly high, but too strong light for shooting on does not necessarily has what benefits, and Panasonic Lumix DMC-S1 Battery Charger may also will injury camera, especially light direct lens Shi has may on digital camera of CCD photographic components caused hurt, Shutter speeds lower the greater the damage to the CCD sensor, so when shooting it is best not to put the camera shooting straight at the Sun, which sometimes cause damage to your machine, make sure to remember
Summary
Introduced more than ten ways to use digital video camera that is easy to damage the machine, we hope to be able to help. Is important to note, only pay attention to careful maintenance of usual, to make his beloved machine "longevity", shooting more evocative picture of life for us, once because of their own "illegal operation" will love machine sent to the depot, at that time may regret it!
Programmable devices today are moving in the direction of high density, low power, high speed. Laidisi company ispMACH4000Z is the industry's lowest power CPLD device family, for portable semiconductor consumer market and it has high requirements for power consumption electronic products market with a new programmable solutions.
From the traditional sense, because control and portable electronics for low standby-power and low costs are very high demands, limiting application of PLD device in these products. En: Lattice Semiconductor ispMACH4000ZCPLD series 1.8 v product came out of the company, marking the industry's lowest power dissipation of JVC BN-VG114U Camcorder Battery the CPLD. IspMACH4032Z was one of the first three spans from 32 to 128 ispMACH4000Z the first in a series of macro-element device. Quiescent current of these devices requires very little power, for a 32 macro-element device, the worst situation is only 20, happened to meet the needs of low-power electronics. New series of devices 20%,ispMACH4000Z devices of power dissipation of only original products that not only has the industry's lowest static power, it is also very costly, ideal is widely used in control, mobile phones, and other consumer electronics products. Greatly expanding the application of programmable logic in these markets.
Basic structure of the device
IspMACH4000 device made up of multiple GLB, 36 per GLB input, 16 macro unit. GLB is interconnected through global wiring pool (GRP). Output wiring pool (ORP) connected to the I/O block GLB. I/O blocks containing multiple I/O units. Its structure is shown in Figure 1. I/O devices into two districts, each district has a different power supply voltages. Supports a variety of criteria, allowing designers to implement designs in mixed voltage environment.
In ispMACH4032 there are two GLB, enter each GLB has 36. All pool GLB input from the global wiring, GLB output returns to global routing for all pools, to connect to the other GLB input. If they have feedback signals back to Panasonic Lumix DMC-ZS7 Battery Charger the same GLB, must also go through the global wiring pool. This guaranteed the GLB communication between each other with constant predictable time delay. GLB output sent to the output wiring pool, and then took them to the I/O block I/O modules.
Figure 1: device function block
GLB consists of programmable array logic Distributor, consisting of 16 macro cell and a GLB clock generator. 36 programmable array input, 83 output product. 36 input from the global wiring pool to constitute 72 wires in the array. Each thread can pass line and link to 83 output either of the product. 80 logical product each fed into the logic of distributor, and the remaining three product items fed into the shared control of clock and share PT PTOE. Into the macro before I shared clock and share PT PTOE initial signal you can select the reverse. 5 product composed of a product for each group (producttermcluster). PT0 first product group. GLB each macro-element has a multiplicative group. Figure 2 is a universal logical block structure of GLB.
Figure 2: universal logic blocks GLB
IspMACH4000 device with two I/O area, each district has its own I/O voltage. Enter support chip power supply voltage or Nikon Coolpix S550 Battery Charger range of voltage-independent voltage. Supports a variety of standard voltages gives designers design flexibility to meet the design needs of today's multiple voltage environment.
Applications in consumer electronics
IspMACH4000Z scope includes mobile phones, paging devices and peripherals, GPS positioning devices, PDA, digital camera, digital cameras, personal audio devices, portable medical instruments, vehicle telematics systems, and radio, as well as industrial instruments. Figure 3 is a ispMACH4000Z in the application of digital camera. Devices to achieve graphics controllers, LCD and IrDA interfaces, memory controllers, and HCI bridge between Bluetooth-enabled devices and the controller interface. Figure 4 is a ispMACH4000Z application on MP3 players. Devices to achieve its storage controller, controllers, IrDA controller user interface features, can receive remote control data, and HCI bridge between Bluetooth-enabled devices and the controller interface. Figure 5 is a ispMACH4000Z application in set-top box. Devices to achieve memory controllers, clock Nikon D80 Battery Charger distribution and system timing, IrDA controller function, can receive remote data, as well as the implementation of Ethernet interface, USB, RS232, and other external devices. Figure 6 is a ispMACH4000Z application in personal digital assistants. Devices to achieve memory controllers, power supplies and intelligent battery management, HCI bridge between Bluetooth-enabled devices and the controller interface, IrDA, Rs232 interfaces, and LCD controller functions, such as TFT sequential controller, image rotation.
World's first practical camera is from the United States amps (Ampex) company was launched in more than 40 years ago. Camera camera tube as the camera component at that time, low life expectancy, performance, photography is not stable and not to strong light, a number of shortcomings with high manufacturing costs, limits the scope of JVC BN-V25 Battery Charger its use has been in the professional field, make inquiries short for Tianjin in civilian areas are few.
Household video camera could be acceptable to the general public like personal computers now, due to the Japan JVC company. In the late 1970 's, JVC introduced the first home video camera, there is to be issued with this personal camera JVC independently developed the VHS format (high density video formats, that our domestic one-second video recorder and one-second videos). JVC camera operation the maximum credit is to simplify and decrease the price, so that household video camera concept began to be accepted by the people.
Earliest selling home video camera to VHS camcorders, but sales is not significant. VHS camera videos have greater versatility, my family owned by almost all video recorder VHS video recorders to play VHS camcorder camera. VHS camera resolution is relatively low, photo taken by pictures only a 250 lines of horizontal resolution. In order to make up for the inadequacy of the VHS, manufacturers developed a S-VHS camera, videos of it by using different coating, improving signal modulation carrier frequency, biased, and increased private Y/C signal output terminal enables direct independent luminance signal and chrominance signal can be output measures such as record screen horizontal resolution of up to 400 lines. But because VHS videotape and S-VHS larger size caused camera bulky and heavy, and is not intended for home use. VHS-C camera and S-VHS-C came into being, this camera the size compared to VHS video tape cartridge used almost half of small andNikon MH-19 Battery Charger compact, but the quality grade and VHS camera and S-VHS the same. In addition, the c-type videos can be played on the distribution switch box in a home VHS video recorder, domestic camera market is also started.
Household video camera small steps have not stopped because the advent of VHS-C and S-VHS-C, followed by Sony (SONY), sharp (SHARP), Canon (Canon) company has introduced a 8mm series cameras that we commonly referred to as V8. Because V8 used by video tape width is 8mm, the full name to the Video8 format, V8,V8 tape than c-band for short in size, and zoom out, but the horizontal resolution is reduced to 270 lines. However, the 8mm format of the camera no longer works home VHS recorder playing, can only use the camera to play. V8 available soon after effects camera market coveted Sony introduced Hi8 camcorder alone, Hi8 and V8 also used the 8mm video, but the structure is more precise, the horizontal resolution up to 400 lines, home performance to a new level of camera.
After the 1990 's, home video camera has been removed from most early VHS, S-VHS, VHS-C development to the present on the domestic market dominance of V8, Hi8 system, signal recording quality has been greatly improved, and falling prices, using household video camera has become a new trend in the world. But these systems are able to provide the best resolution is still unable to broadcast-quality, professional-quality camera equipment taken out of the TV signal to make comparisons.
Of course, a penny stock, purchase and maintain professional-quality and high reliability of the camera's cost is very high. But the user is constantly in search of a small home camera size, is constantly in pursuit of a better image quality, while technical progress has been made in mind. With the advent of digital technology represented by computer technology, home video cameras are also bred a new revolution.
Digital video cameras for domestic use, turned out
Cameras are more complex to operate with digital technology? Effects would really be better? In 1998, the first Department of household digital cameras came out to eliminate the doubts of the people on it. Japan's two major camera manufacturer Panasonic and Sony jointly more than more than 50 companies worldwide joint development of a new DV (abbreviation for Digital Video) – digital video camera. New camera records video instead of analog signals, instead of using a digital signal. Such a core part of Panasonic Lumix DMC-S3V Battery Charger the video format is through digital processing of video signals as 0 and 1 signal as well as digital recording, with drum helical scan record in the 6.35mm wide metal video on the videotape, video signal conversion and records are stored in digital form, which improves recording the clarity of the image, so that image quality easily reached more than 500 lines. In the existing television system, its playback quality to achieve professional-grade camera image quality, sound quality up to CD-quality, and also unify video format, without the purchase of trouble.
Currently available DV video with two kinds of specifications, one is a standard DV tape, the tape width of 6.35mm, video recording time is 60 minutes, with LP mode recording time may be extended to 1.5 times with longer times. Another is shrinking MiniDV tape, general household video camera used by video tape MiniDV tape is belong to this shrink. For example Sony MiniDV digital camcorder MiniDV is as its storage medium. DV digital camera system provides 500 lines of horizontal resolution, color frequencies higher than those of traditional analog camera systems also 6 times as much, so the color and image more clear and crisp; in terms of recording, and is equipped with digital stereo mode, sound quality comparable to professional-grade sound quality. Additionally, by Digital Terminal--i. LINK input and output interface in the form of digital to digital connection, feel free to take a digital copy, or edit to ensure quality clear, can be said to be the future development trend. Digital camera and computer connection is also convenient, home computers's friends choose digital cameras can use its features to more easily complete image editing, post-processing work. From the product, on the divide, DV is divided into single-CCD of civilian products and can be used instead of professional models of 3-Chip CCD imaging products, 3-chip DV camera in the imaging CCD imaging performance to higher accuracy and color reproduction. Now CCD digital camera prices generally 7,000 RMB ~14000 Yuan, 3-Chip CCD imaging digital camera price in more than $ 14,000.
DV launched household video camera there is a real leap forward, DV digital video camera using next-generation, smaller, recording time is longer, driving a DV camera to smaller, lighter, and better direction. Sony and Panasonic have also been further strengthened by DV camera's position at home.
Backward-D8
Sony launches DV camera at the same time, have also introduced a D8 digital camera. So-called D8 is Digital 8, Sony for filling vacancies between S-VHS and DV camera and developed a format for digital camera, it will be digitized video signals recorded on Hi8 tape. Hi8 tape format is also known as Super 8, it have the same overall dimensions with V8, and can be used interchangeably, so D8 camcorders can play original Hi8 video tapes. From accuracy, Hi8 metal effect up to 500 bar, image detail perfect, much better than the color band analog camera systems. In addition, D8 digital camera can analog video/audio input, using D8 camera built-in analog/digital signal converter by analog video/audio input terminals, also ripped the analog signal to digital signal, saving time longer. In addition, the D8 with DV camera many features, such as DV IEEE 1394 interface, still image capture and storage, and other functions. Because of the many mature technology, D8 's prices significantly lower than the DV camera, has become the home camcorder market forces, such as Sony, DCR-TRV820E, DCR-TRV120E.
Characteristics of household digital cameras
DV camera and General comparison, the biggest differences include the following:
1. higher image resolution. DV camcorders usually 500 lines, and VHS video camera is 200 lines, S-VHS camera for 280~300 line, 8mm camera for about 380 lines.
2. color and brightness six times times more bandwidth than a normal camera, color, brightness, bandwidth is the primary determinant of image accuracy and extremely pure color, up to professional standards.
3. unlimited ripping images without loss.
4.IEEE 1394 digital output terminal (Sony will name it I. LINK) makes it easy to transfer video images to the PC. Has the following characteristics: 1) a direct transfer of digital image data, so there is no deterioration of Samsung TL225 Battery Charger the image and audio, 2) only one cable, video, audio and control signals can be a data transfer, 3) with hot-swap feature, in a variety of devices for data transfer.
Some DV cameras also have still image shooting like a digital camera functions, and they have this camera has a built-in memory slot. Like a Sony DV camera TRV900E, PC11OE, PC100E, PC5E random with a Memory Stick memory stick, Panasonic digital video camera using MultiMedia Card (MMC) memory card to capture still image, realize the dual function of digital camcorders and digital cameras.
The heat of the summer, with sunny weather on, which is similar to the beach shooting a woman full of summer stride series photos, can be said to be the best cooling program. Compared to other attractions, the beach is all the more difficult shooting portraits. In addition to overcoming blaze worse, composition, style, and so on are all to be more prepared. This time, we take Sony the latest DSLR and lens made a woman out there and getting the beach try fan, to explain to women like the sands of several shooting points!
Beach shooting woman, shot changes works, for composition is a great tests. We all know, Hong Kong Beach for JVC Everio GZ-MS120 Battery Charger your filming background, only sand, sea and sky, stereo depth is not obvious. To make more changes in the composition, it is recommended that used zoom lenses, using different sense of perspective to create a dynamic background images. This photograph demonstration photos when using SAL2470Z (AE 24-70mm f/2.8) and SAL70300 (AE 70-300mm/4.5-5.6 g SSM) two high quality zoom lens, covering a wide angle, distance and super telephoto focal length range.
FilmingSony DSLR-A350 detailsSAL2470Z (AE 24-70mm f/2.8) detailsSAL70300 (AE 70-300mm/4.5-5.6 g SSM) detailsHVL-F58AM Flash
To vast blue sky, the sea as background, the easiest method is to use a convex mirror shot, and with a lower angle, General photos of the filming Model. Different from shooting landscapes, horizontal lines may not be absolute levels when shooting portraits, deliberately tilted create a lively feeling. To note is that taken in along the direction of the light in order to produce the bluest of days and the most limpid sea water.
Wide angle lens to shoot out more background.
Taken with a telephoto lens, the advantage is you can narrow the scope of the background, only a small portion of prominent Model, as well as background. When we discovered when the beach is covered with a wide range of swimmers, you will find telephoto lens is quite useful. If used properly, in ordinary beach can also shoot the beautiful woman like photos. In addition, use focal length shot of 200mm NM, can be easily taken out of the shallow depth of field effects, used to highlight the subject is quite convenient.
Telephoto lens to shoot out a simple background.
Beach is a lack of shelter in place, can be said to be "without the mask without masks". Most places on the beach, are too direct rays of the Sun and become very bright. In a sunny day, light and dark of light difference is very big. Somewhat inadvertently, photos will be severely overexposed shot out, or an nonghei shadows.
To minimize the error of, more desirable method is to choose morning or evening time shot. Sunshine assassination eye level reduced Model to the face of the Sun along the optical shooting light reaches a consistent Model and Panasonic Lumix DMC-FS7 Battery Charger background. We then use a reflector to slightly fill the Model's face, reducing the cheeks, eye socket shadow, you can shoot contrasts ideal photo.
Addition as being light shot, actually everyone can try backlight. Note, however, at this time to choose a dark background, otherwise the background becomes white mist. Using backlit shot, also preferably with reflector fill flash, make photo darker detail even more abundant.
Photo shooting
Back light shooting
In addition to using reflector, you can also use Flash as a fill. Benefits of using Flash without assistants help fixed reflector, and is reflective of the Model's eyes sparkle appears, in a positive light or backlight environment can also be used. Effect natural will use environment light and Flash output diminished by about 1EV.
Past plus on the shoe Flash, using vertical direction when shooting light source would become light. If there is no fill, Model nose and face will appear on the other side of strong shadow. This latest flagship Flash shot using a Sony HVL-F58AM, first this lamp Quick Shift Bounce function, in addition to the flash lamp Cap directions up and down adjustment has been made, but can be adjusted 90 degrees left and right. So when in vertical composition, as long as the Flash left adjusted accordingly or to the right direction, light direction can be consistent with the horizontal composition time, Flash effect easier to control, but also a more natural.
Reflector is a vital tool for the control equation of light
When you use the vertical composition, using HVL-F58AM Flash can be adjusted to the appropriate direction, more natural Flash effects.
Adjusting the aperture, shutter speed, to reduce the brightness of the background about 1EV, Flash output is maintained properly, can produce effects more photos. This approach to Flash with well, you need to more carefully light scattering control, many fashion photographers will love this shoot.
To reduce the Flash output, more natural light.
The reflective plate and tools such as Flash, photo contrast with basic control. Using Sony DSLR-A350 shooting this time, we can use its built-in Dynamic Range Optimizer (DRO) control the dynamic range of Nikon D5000 Battery Charger photos to further fine-tune the contrast of the photo effects. DSLR_A350 provides three levels down, standard and advanced DRO, number into the class to use DRO to minimize the concentration of the shadow. But to express the atmosphere of the Sun, would do well to keep a slightly stronger contrast, generally use the standard series has quite enough.
Shut down
Standard
Advanced
Shot in a totally empty beaches, if not beforehand and the preparation of props as an auxiliary, shoot photos inevitably effect monotone. Fu is a very important part, in particular taking full or bust photo is more evident. Kneeling in the sand, tuck sit, play water and splashing water with your hand or even lying down sideways and so are common, some photo album you can get a lot of inspiration. Prop context, hats and beach balls, bubbles can strengthen the summer feeling-cream, drinks are good props and can immediately purchase, convenient reach.
Recent Comments