COOPERATIVE DEVELOPMENT VENTURE YIELDS LSI CHIP SET FOR HDTV MUSE
DECODER -- 13 LSI DEVICES DEVELOPED FOR 2ND GENERATION DECODER
TOKYO, Jan. 21 /PRNewswire/ -- Fujitsu Limited, Hitachi Ltd. (NYSE: HIT), Sony Corporation (NYSE: SNE) and Texas Instruments Japan Limited today announced the successful development of the world's first second-generation chip set for high definition television (HDTV) MUSE decoders. This accomplishment marks the completion of their joint development project announced in August 1991. The four companies plan to ship engineering samples this month and commercial samples beginning in April.
With the successful launch of the Ministry of Post and Telecommunication's BS-3b satellite in August 1991 and the subsequent commencement of trial HDTV broadcasts on Nov. 25, plans for practical HDTV service in Japan are nearing completion. The newly developed chip set will be used to construct a signal demodulator (MUSE decoder) for reception of HDTV broadcasts.
The new chip set dramatically reduces the number of devices needed to construct a MUSE decoder and significantly reduces system cost. The first generation MUSE decoder required about 150 IC devices, including 24 varieties of application specific devices (46 in all) as well as various general purpose ICs. In contrast, the joint development effort has made possible a MUSE decoder comprised of about 30 devices, including 13 types of newly developed application specific circuits (15 in all) and general purpose ICs.
By drawing on each of the members' areas of expertise, the companies were able to develop a chip set that consists of about one-fifth the number of components as before. As a result, it will now be possible to construct a low cost, compact MUSE decoder board about the size of a stenography pad with power consumption less than one-half that of the previous generation device.
The new chip set incorporates the latest signal processing and semiconductor technology to improve performance and reliability and reduce size and power consumption. Among the key innovations are:
1) New methods of circuit combination and processing order have been developed which enable a major reduction in circuit scale as well as lower power consumption.
2) The frame memory is constructed of three newly developed 4 Mb memory chips, allowing the necessary memory capacity to be reduced to 60 percent of that required for the first generation.
3) An innovative 10 bit 32 MHz AD converter makes possible improved image quality and a reduction in the total number of components.
4) Several previously separate components and general purpose ICs have been integrated.
5) Utilization of small packages for analog and memory devices and packages with improved heat dissipation for digital circuits makes possible large-scale, highly integrated devices.
6) Surface mounting for the entire package makes possible high density mounting of components.
The 13 newly developed types of application specific circuits are:
-- Six digital signal processing devices developed by Fujitsu Limited
-- An audio output processor developed by Hitachi, Ltd.
-- A frame memory developed by Texas Instruments Japan, and
-- Five analog/digital input-output processing devices developed by Sony Corporation.
NOTE TO EDITORS: Founded in 1935, Fujitsu Limited heads the world's second largest computer group and is an international leader in telecommunications, semiconductors and other electronic devices. On a consolidated basis, revenues were more than $21 billion in fiscal 1990 and the number of employees worldwide exceeded 145,000.
Hitachi, Ltd., headquartered in Tokyo, Japan, is one of the world's largest electronics and electrical equipment manufacturers, with operations extending to computers, semiconductors, household appliances, power generating equipment and industrial machinery. Hitachi's 1990 sales totalled $54.9 billion.
Sony Corporation is a leading developer and marketer of HDTV equipment for both professional and consumer fields. The company is one of the world's leading manufacturers of video and audio equipment, televisions, displays, semiconductors and information-related products such as floppy disk systems.
Texas Instruments Incorporated (NYSE: TXN), headquartered in Dallas, Texas, is a high-technology company with sales and manufacturing operations in more than 30 countries. TI develops, manufactures and markets semiconductors, defense electronics systems, software productivity tools, computer systems and peripheral products, custom engineering and manufacturing services, electrical controls, metallurgical materials, and consumer electronic products.
Texas Instruments Japan is the largest American supplier of semiconductors to the Japanese market and is a wholly owned subsidiary of Texas Instruments Incorporated. TIJ employs approximately 5,500 people in Japan
/CONTACTS: Yuri Momomoto, 03-3216-7952, or Michael Solomon (U.S.), 212-764-4760, both of Fujitsu Limited; or Shinichi Nishikawa, 03-3258-2055, or Osamu Naito (U.S.), 914-333-2902, both of Hitachi, Ltd.; or Makoto Araki, 03-3448-2200, or Jonathan Hirshon (U.S.), 201-930-7812, both of Sony Corporation; or Muneo Obata, 03-3498-2111, or Ted Jernigan (U.S.), 214-997-5467, both of Texas Instruments Japan Limited/
(HIT SNE TXN) CO: Fujitsu Limited; Hitachi Ltd.; Sony Corporation;
Texas Instruments Japan Limited ST: Texas IN: CPR SU: PDT FC -- NY105 -- 1988 01/21/92 15:42 EST