Philips introduces a unique one-chip video and text encoder for digital video systems.SUNNYVALE, Calif.--(BUSINESS WIRE)--Nov. 6, 1995--With the introduction of the SAA (Systems Application Architecture) A set of interfaces designed to cross all IBM platforms from PC to mainframe. Introduced by IBM in 1987, SAA includes the Common User Access (CUA), the Common Programming Interface for Communications (CPI-C) and Common Communications 7182 and SAA7183 Digital Video Encoders, Philips Semiconductors is the first company in the world to offer a single-chip solution which encodes digital video into PAL, SECAM (SEquential Couleur Avec Memoire, Sequential Color with Memory) A color TV standard from France that was officially introduced in 1967. Although development began in 1956, it took time to convert from the earlier French 819-line system. or NTSC (National TV Standards Committee) The committee that developed the television standards for the U.S, which are also used in Canada, Japan, South Korea and several Central and South American countries. Both the committee and the standard are called "NTSC. composite video, S-Video (Y/C Y/C Luminance/Chrominance ) and RGB (Red Green Blue) The computer's native color space, which is the color system for capturing and displaying images. RGB was derived from our own perception of color because human eyes are sensitive to red, green and blue (see trichromaticity). analog signals. The SAA7183 also features Macrovision Pay-per-View copy protection. These new encoders, which are designed as 'one-chip multi-standard back ends' for digital video systems, are ideal for MPEG-1 playback in equipment such as video-CD players and multimedia computers. They also allow manufacturers to produce multi-standard set-top boxes for digital satellite TV and CATV (Community Antenna TV) The original name for cable TV. It used a single antenna at the highest location in the community in order to deliver a quality signal to homes in areas with hilly terrain or other interference. networks. By incorporating two independent 27-MHz triple DACs, both ICs can generate CVBS CVBS Composite Video Baseband Signal CVBS Composite Video Broadcast Signal CVBS Composite Video Blanking Sync CVBS Color, Vision, Blanking, Synchronisation CVBS Composite Video Blanking and Synchronization , S-Video and RGB outputs simultaneously-meeting all the signal requirements of SCART connector standards. In addition to their multi-standard and multi-output capabilities, both the SAA7182 and SAA7183 also feature support for closed caption, extended data service and Teletext insertion. For maximum flexibility, this information can be restricted to the RGB outputs, or applied to the RGB, CVBS and S-Video outputs. Teletext information positioning and the scan line on which closed captioning or extended data service information is encoded are also programmable. Both encoders accept 8-bit multiplexed YUV video data, allowing them to interface directly to MPEG decoders and other CCIR-656 compatible video sources. Alternatively they can be fed with 16-bit data comprising separate 8-bit luminance (Y) and 8-bit multiplexed color difference signals (UV). The SAA7182 and SAA7183 can also be locked directly to a Philips digital multi-standard video decoder such as the SAA7111, with PAL-ID, sub-carrier frequency and sub-carrier phase information being transferred automatically between the decoder and encoder via a dedicated real-time control line (RTC See real time clock. ). In this configuration it is possible to implement extremely clean, high-performance standards conversion with only two ICs. All the parameters of the encoded video signal, such as the black level, blanking level and super-white pulse levels in the luminance channel, and the differential gain and color burst amplitude of the chrominance See chroma. channel, are programmable via the encoder's high speed I2C-bus interface. This allows implementation of several video special effects and all PAL, SECAM and NTSC sub-standards. In addition, both encoders have overlay capabilities via an on-chip color look-up table, which can also be used for color bar generation. To minimize the number of peripheral circuits required, all the required clock signals and sub-carrier frequencies are derived from either a 27 MHz master clock input or from an on-chip crystal controlled clock oscillator oscillator Mechanical or electronic device that produces a back-and-forth periodic motion. A pendulum is a simple mechanical oscillator that swings with a constant amplitude, requiring the addition of energy at each swing only to compensate for the energy lost because of air . In addition, the luminance channel data is 2x over sampled from 13.5 MHz to 27 MHz in order to simplify analog post filtering. According to Werner Niehaus, product marketing manager for desktop video products, "These new encoders represent important additions to Philips' Desktop Video chip set. By adding SECAM encoding and RGB outputs to the PAL and NTSC functions of our existing SAA7188A Digital Video Encoder, we now have one-chip back-end solutions which rival the multi-standard capabilities of our highly successful SAA7110 and SAA7111 one-chip front-ends," he says. "In particular, their full SCART connector support puts us in a very strong position to capture a dominant share of the European video encoder market". Both the SAA7182 and SAA7183 are 5V CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes. devices packaged in 84-lead PLCCs. Samples are available now, with volume production scheduled to begin in the fourth quarter of 1995. Philips Semiconductors, Inc., a subsidiary of Philips Electronics North America Corporation and an affiliate of Philips Electronics NV Philips Electronics NV in full Royal Philips Electronics NV Dutch Koninklijke Philips Electronics NV Major Dutch manufacturer of consumer electronics, household appliances, lightbulbs, and imaging equipment. , headquartered in Eindhoven, The Netherlands, is the eleventh largest semiconductor supplier in the world. Philips Semiconductors' innovations in digital audio, video, and mobile technology position the company as a leader in the consumer, multimedia, and digital communications markets. Sales offices are located in all major markets around the world and are supported by regional customer application labs. Additional information on Philips Semiconductors can be obtained by accessing their home page at: http://www.semiconductors.phil ips.com/ps/ CONTACT: Philips Semiconductors Peter Brown, 408/991-3626 or Oak Ridge Public Relations, Inc. Pragati Grover, Jean Stawarz, 408/253-5042 or The Creative Power, 408/253-5042 pragati@oakridge.com http://www.oakridge.com/ |
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