Basic network equipment companies have now made the Internet a reality. Cisco Systems in Silicon Valley can be said to know more than anyone how a company can use network-based resources to improve operational effectiveness. Now because of the adoption of ADI's Blackfin processor, using its programmable flexibility and cost performance, Cisco's new telepresence (telepresence) visual collaborative operation solution is expected to drive enterprise productivity to a new high.
Futurists have foreseen the telepresence system as an experience realized through technology, which accurately replicates the existing environment in the remote location. In order to correctly use the word telepresence as its new IP-based video cooperative operation solution, Cisco must build a high-definition video (HD Video) and an optimal level of delay (no time is noticed) Delay) products, the way of communication is through limited bandwidth and uncertain current enterprise network infrastructure.
Only by providing a better experience to users of new equipment can Cisco enable colleagues, partners, vendors, and customers to achieve more effective remote business relationships. The processing power required to achieve ultra-high resolution 1080P / 30fps low-latency HD video codecs is difficult, not to mention the Cisco developers' requirements for the cost, cooling, and programmability of telepresence products.
Cisco finally used an array of Blackfin ADSP-BF561 processors to handle telepresence applications that feature large amounts of computing. The ADSP-BF561 with a dual symmetrical 600MHz Blackfin core is compatible with Cisco's advanced video processing applications.
What is Telepresence
Telepresence telepresence technology is a set of technologies that allows users to host and collaborate, just as if all participants appeared in the same room. In those traditional video conferencing solutions that are often unable to set up or make users feel uncomfortable, well-designed telepresence solutions provide immediate connection to remote locations, with a natural environment, with real appearance, to live participants ’ Video images, as well as high-fax, low-latency directional sound effects, can be perfectly synchronized with facial expressions, and participants will follow them when they move in the conference room.
Cisco's Blackfin-based telepresence products include the CTS1000 designed specifically for the executive office, and the CTS3000 is a full-scale party-only solution designed for conference rooms. These solutions contain everything needed to host live meetings in two places. The conference room system includes a ceiling light that reduces the glare of the display screen, an elliptical table and chairs, three 65-inch plasma displays, three cameras, and a system cabinet that houses the Blackfin processor.
All of these things can be replicated in the conference room of the remote user, creating the illusion of connectivity: the two conference tables will seamlessly be combined into a single appearance. The CTS1000 system includes a 65-inch plasma display, a high-definition 1080p camera and a system cabinet. The enterprise only needs to provide an empty conference room and Ethernet interface, and Cisco will perform network inspection to ensure proper service quality from end to end through the network.
Cisco's experience in unified communications and IP telephony has resulted in easy setup and use of telepresence systems. With just a few clicks, the user can immediately start a face-to-face meeting with colleagues thousands of kilometers away, and the HD video image of the system is real, making users often forget that other colleagues are not really in that room.
HD video high resolution video
There is an advanced video codec standard called H.264, which can achieve very high data compression with a lower bit rate than previous standards. The original video it compresses can be accessed through an economical enterprise WAN (Wide Area Network) link. Cisco's video codec is based on the H.264 video codec standard, which provides the highest latency, up to 1080p / 30fps real-time video resolution. By minimizing the delay of HD video codec, Cisco's solution also gives the network more room for delay, allowing new applications to be processed with minimal network hardware and software upgrades, making deployment faster.
With a dual symmetrical 600MHz Blackfin core, the Blackfin ADSP-BF561 processor is ideal for Cisco to meet challenges and complex video applications. Cisco's video codec function is distributed to multiple Blackfin ADSP-BF561 for processing, providing 0.5MIPS processing power, driving the video subsystem with the best efficiency, and facilitating the deployment of practical solutions.
The Blackfin ADSP-BF561 processor, often used in high-end multimedia and telecommunications applications, contains two independent Blackfin processor cores. Each core contains two 16-bit multiplier / adder (MAC) latest processing engines, two 40-bit ALUs, four 8-bit video ALUs, a 40-bit shifter, plus a pure, orthogonal RISC -Like (RISC-like) microprocessor instruction set advantages, as well as single instruction, multiple data (SIMD) multimedia functions, all of which are integrated in a single instruction set architecture.
Easy programming / low power
Blackfin ADSP-BF561's RISC-like register and instruction mode are designed for simple programming. These functions, as Cisco said, can reduce development costs, risks, and time to market. Blackfin's programmable architecture also allows for upgrades over the network without costly ASIC hardware re-spins. Cisco also uses A.
DI's software and hardware development tools accelerate time to market and reduce costs. These tools include the VisuaIDSP ++ development environment, which allows programmers to develop and debug applications, and simulator hardware can be used to test and debug hardware and software.
Cisco uses many general-purpose digital imaging interfaces integrated on the Blackfin ADSP-BF561 processor to achieve an exquisite system-on-a-chip system as a codec for remote presentation systems. The general-purpose interfaces of Blackfin ADSP-BF561 include: two parallel peripheral interfaces (PPI) supporting ITU-R 656 video; a seamless interface to the analog front-end ADC; two dual-channel, full-duplex synchronous serial ports support 8 One stereo I2S channel; two 16-channel DMA controllers and an internal memory DMA controller; 12 general-purpose 32-bit timers / counters with PWM function; one SPI compatible interface; one UART that supports IrDA; two A watchdog timer; 48 programmable flags; and a built-in phase-locked loop (PLL) with a frequency multiplier of 1x to 63x.
Blackfin's low power consumption helps Cisco limit the heat dissipation of its telepresence system to a small, silent fan. The airflow in the system cabinet is provided by this fan, which is essential for maintaining the surrounding environment of the conference room. Designed in a low-power and low-voltage manner, the Blackfin processor allows developers to change the operation of voltage and frequency, greatly reducing the overall power consumption. Cisco described the result as "a group of non-heating Blackfin processors" to drive its video subsystem, so no heat sink is needed in the design.
Thanks to the use of Blackfin processors, Cisco now has the high-compression HD video required by its next-generation telepresence system; the results can reduce travel time, expense, and pressure for business executives and employees who are tired of traveling back and forth. They can now use IP-based video meets with partners, colleagues, or customers. This method is as real as face-to-face communication, and the increased productivity and collaborative operation results will be unprecedented.
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