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To: JGoren who wrote (24649)	3/22/1999 1:01:00 PM
From: 2brasil	Respond to of 152472

The nationwide expansion in Japan of commercial CDMA (Code Division Multiple Access) digital cellular network service continued today with the scheduled commercial launch of three more systems. DDI, one of Japan's leading cellular service providers, announced the commercial launch of three more networks using state-of-the-art cellular infrastructure designed, manufactured and installed by Motorola, Inc.'s Network Solutions Sector (NSS). The CDMA network also is known as cdmaOne(TM). Last July, the first three of DDI's networks were commercialized, offering service to people in cities such as Osaka, Kobe, Kyoto and Nagasaki, plus more than 600 other communities. The new service launched today adds the Japanese regions of Shikoku, Hokuriku and Chugoku, which include over 500 more cities, towns and villages and whose inhabitants number more than 15 million. Next month, IDO and two other DDI regional service providers will launch commercially the final elements of the nationwide cdmaOne network buildout, marking the completion of the world's most ambitious and comprehensive cdmaOne installation project. ''cdmaOne's capacity and high quality connections are perfect for the rapidly growing, quality conscious Japanese market,'' said Ron Hamma, vice president and general manager of NSS operations in Japan. ''These three regions are key additions to the nationwide network being built.'' The DDI/IDO nationwide network is comprised of Motorola NSS's SCTM family of base stations and EMX® 5000 mobile switches. The EMX 5000 was developed jointly by Motorola NSS and Alcatel USA, which manufactures the switch and provides core platform software. Motorola NSS develops the mobility applications software. Six-sector technology, which nearly doubles a cell's capacity, plus state-of-the-art 8 Kbps Enhanced Variable Rate Coders (EVRC), digital voice encoders that provide landline quality voice transmission and significant capacity gains, are incorporated throughout each network system. DDI is the second largest carrier in Japan. Established in June of 1984, DDI operates eight regional phone companies that provide both analog and Personal Digital Communications (PDC) cellular service. IDO was established in March of 1987 to offer mobile phone communication services. IDO's service areas reach out from the heart of Tokyo and cover much of the central region of Honshu, the principal island of Japan and the nation's most densely populated area. Motorola NSS deployed its first cellular system, an analog TACS network, in 1989 in Japan for DDI's Kansai Cellular Telephone in the Osaka region. The other seven DDI regions and IDO followed later to provide nationwide coverage. In 1991, Motorola NSS introduced NTACS (Narrowband TACS) into Japan when DDI began NTACS service in Osaka and IDO later launched NTACS service in Tokyo and Nagoya. In 1993, Motorola NSS began deploying PDC systems at 1.5 GHz in the Tokyo and Tokai regions and at 800 MHz with DDI's other cellular telephone companies. The nationwide buildout of PDC was completed by Motorola NSS in late 1996. Motorola, Inc. has been operating in Japan since opening its first office in 1962 in Tokyo. Motorola NSS maintains sales, service and engineering support facilities in Japan, as well as a 3G research and development center. Motorola, Inc. is a global leader in advanced electronic systems and services. It liberates the power of technology by creating software-enhanced products that provide integrated customer solutions and Internet access via wireless and satellite communications, as well as computing, networking, and automotive electronics. Motorola also provides essential digital building blocks in the form of embedded semiconductors, controls and systems. Sales in 1998 were $29.4 billion.

To: JGoren who wrote (24649)	3/22/1999 4:04:00 PM
From: Clarksterh	Respond to of 152472

JG - why can't there be an encryption code when the movie is sent, which is only usable by the particular projection system. That is certainly feasible using either TDMA or CDMA. For instance, you could give each projector a unique key (like the GSM SIM card or the CDMA serial number - call it key1) and each movie a different unique key (call it key2). Then, when a projector wants to show a film they send in their key number in an unencrypted form and the central office sends back key2 encrypted in key1 (so only the particular projector can get key2). Now that they have key2 it is possible them to decrypt the movie when it is broadcast. This sort of multiple keys system is used routinely in networks. Clark