LOCUS Corporation in Japan Announces an Effective Solution for Location Positioning, a Network Base Solution for TDMA Using New 'Advanced Maximum-Likelihood Estimation -'AME'- Technology'.Business Editors/High-Tech Writers OSAKA, Japan--(BUSINESS WIRE)--Sept. 13, 2001 LOCUS Corporation, leading developer of location positioning technology in Osaka, Japan, today announced that LOCUS's "AME See AIT. " technology would tremendously contribute to improvement of positioning accuracy for legacy mobile handsets in TDMA (Time Division Multiple Access) A satellite and cellular phone technology that interleaves multiple digital signals onto a single high-speed channel. For cellular, TDMA triples the capacity of the original analog method (FDMA). cellular phone networks, to comply with E-911 regulation. "The AME technology, LOCUS's core competence Core competence Primary area of expertise. Narrowly defined fields or tasks at which a company or business excels. Primary areas of specialty. , which was originally developed for IS-136/54, will make legacy handsets usable for E-911 service. It is especially efficacious for Mobile-Assisted Network Location System ("MNLS MNLS Multi-National Language Supplement ") proposed by AT&T Wireless and Cingular Wireless," said Hiroaki Koshima, president and founder of the LOCUS Corporation. Problems of signal fluctuation caused by terrain variations, vehicles, human bodies, and clutter, are solved by an elegant application of advanced probability theory. The AME patents have been filed with the Japanese Government, and will be filed in the U.S. and other major countries shortly. In response to many inquiries, LOCUS is preparing to grant licenses in the U.S. as well as other countries. Prior to the AME development, LOCUS was granted other location solution patents in the U.S., Japan, Europe and six other countries. This solution exploits Enhanced Signal Strength ("ESS") which was originally developed for Personal Handy-phone Systems ("PHS (Personal Handyphone System) A TDMA-based cellular phone system introduced in Japan in mid-1995. Operating in the 1880-1930 MHz band, PHS uses microcells that cover an area only 100 to 500 meters in diameter, resulting in lower equipment costs but requiring more base ") and is now integrated into AME. LOCUS will also export systems exploiting ESS/AME on a PBX (Private Branch eXchange) An inhouse telephone switching system that interconnects telephone extensions to each other as well as to the outside telephone network (PSTN). basis to the U.S. for large theme parks and factories. These systems are usable even in ferroconcrete buildings where A-GPS A-GPS Assisted Global Positioning System (used in mobile communications as a positioning system) is not usable. In Japan, LOCUS's technologies are also being used on a PBX basis in factories, construction sites and other places where security and safety needs require the utmost in location accuracy. LOCUS has granted licenses to the Government of Japan, to Toshiba Corporation, and to handset makers. LOCUS launched the world's first commercial deployment of Location Based Services ("LBS (Location-Based Services) See mobile positioning. ") using PHS in April, 1998, and its LBS has been expanded throughout Japan for security firms, anti-car theft needs, and people suffering from disorientation disorders. It is effective even in underground shopping malls and subway stations. LOCUS's reputation has been excellent because of its systems' high accuracy. LOCUS Corporation was founded in Osaka, Japan, in 1995 as the first developer of location positioning technologies for network base solutions in Japan. In 1996, LOCUS received grants from the Japanese government. Since then, LOCUS has received numerous awards in recognition of its innovative solutions and outstanding entrepreneurial leadership. Muraki Bldg., 1-16-20 Minami-Senba, Chuo-ku Osaka-shi, OSAKA, 542-0081 Japan |
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