Multiplex communications – Wide area network – Packet switching
Patent
1994-06-17
1996-09-10
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370 93, 379 57, 379 59, 379 90, 379 98, H04B 156
Patent
active
055552587
ABSTRACT:
A wireless telephone subsystem for coupling line type telephony equipment to the public switched telephone network is described. A base unit is provided which is adapted to be coupled to a plurality of lines of the PSTN. The base unit includes a base coder/decoder which transforms analog signals received from the lines of the PSTN to digital signals and conversely transforms digital signals to analog signals for coupling to the lines of the PSTN. The base unit includes a multiple channel transceiver coupled to the base coder/decoder which responds to the digital signals provided by the base coder/decoder for transmitting those signals by placing selected portions of the digital signals into selected portions of a multiplex frame. The base multiple channel transceiver also receives digital signals and couples those digital signals to the base coder/decoder. Programmable switching means is provided to associate selected of the PSTN lines and selected portions of the multiplex frame. The subsystem also includes a wireless interface unit for connecting to the line type telephony equipment. The wireless interface unit also includes a remote coder/decoder for transforming analog signals received from the line type telephony equipment into digital signals and for transforming other digital signals into analog signals for coupling to the line type telephony equipment. The wireless interface also includes a remote transceiver which is coupled to the remote coder/decoder. The remote transceiver responds to digital signals from the remote coder/decoder for transmitting the signals into selected portions of the multiplex frame and receives other digital signals and couples those to the remote coder/decoder.
REFERENCES:
patent: 3949172 (1976-04-01), Brown et al.
patent: 4058678 (1977-11-01), Dunn et al.
patent: 4475193 (1984-10-01), Brown
patent: 4479033 (1984-10-01), Brown et al.
patent: 4514594 (1985-04-01), Brown et al.
patent: 4523307 (1985-06-01), Brown et al.
patent: 4658096 (1987-04-01), West, Jr. et al.
patent: 4675863 (1987-06-01), Paneth et al.
patent: 4737975 (1988-04-01), Shafer
patent: 4775997 (1988-10-01), West, Jr. et al.
patent: 4776001 (1988-10-01), Murata
patent: 4779262 (1988-10-01), Avis et al.
patent: 4792946 (1988-12-01), Mayo
patent: 4817089 (1989-03-01), Paneth et al.
patent: 4825448 (1989-04-01), Critchlow et al.
patent: 4893317 (1990-01-01), Critchlow et al.
patent: 4912705 (1990-03-01), Paneth et al.
patent: 4922517 (1990-05-01), West, Jr. et al.
patent: 4994802 (1991-02-01), Critchlow et al.
patent: 5008900 (1991-04-01), Critchlow et al.
patent: 5022024 (1991-06-01), Paneth et al.
patent: 5072308 (1991-12-01), Lin et al.
patent: 5101418 (1992-03-01), Critchlow et al.
patent: 5119375 (1992-06-01), Paneth et al.
patent: 5121391 (1992-06-01), Paneth et al.
patent: 5146473 (1992-09-01), Critchlow et al.
patent: 5159705 (1992-10-01), Critchlow et al.
patent: 5168507 (1992-12-01), Critchlow et al.
patent: 5177741 (1993-01-01), Crtichlow et al.
patent: 5212830 (1993-05-01), Miller
patent: 5224120 (1993-06-01), Schilling
patent: 5228053 (1993-07-01), Miller et al.
patent: 5228056 (1993-07-01), Schilling
patent: 5260967 (1993-11-01), Schilling
patent: 5263045 (1993-11-01), Schilling
patent: 5274665 (1993-12-01), Schilling
patent: 5276703 (1994-01-01), Budin et al.
patent: 5289497 (1994-02-01), Jacobson et al.
patent: 5299226 (1994-03-01), Schilling
patent: 5307399 (1994-04-01), Dai et al.
patent: 5361294 (1994-11-01), Lee et al.
patent: 5384826 (1995-01-01), Amitay
Anon, "The Cordless Office", Telecom World, Dec. 1991, pp. 36-37.
Bud, A., "Technologies for Personal Networking in Europe", International Mobile Communications 90, Jun. 12-14, 1990, pp. 79-88.
Costello, J., "Look--No Wires", Office Equipment News, Nov. 1992, pp. 46-47.
Douligeris, C., "Intelligent Home Systems", IEEE Communications Magazine, Oct. 1993, pp. 52-61.
Duet, D. A., "An Investigation into the Economic Impact of Low-Powered, Digital Radio in the Telephone Distribution Plant", Globecom '89, Nov. 27-30, 1989, pp. 38.7.1.-5.
Duet, D. A., "Portable Phone Service for an Upscale Subdivision--An Economic Assessment", ICC '90. IEEE GA, Apr. 16-19, 1990, pp. 206.1.1-4.
Elliott, P. W., and T. N. Kanaropoulos, "Supporting Diverse Services in a Microcellular TDMA System", Tenth UK Teletraffic Symposium: Performance Engineering in Telecommunications Networks, Martlescham Heath, U.K., Apr. 14-16, 1993, pp. 28/1-9.
Habuka, T., and H. Sekiguchi, "Standardization of Personal Handy Phone (PHP)", NTT Review, vol. 5, No. 5, Sep. 1993, pp. 101-105.
Kobb, B. Z., "Personal Wireless", IEEE Spectrum, Jun. 1993, pp. 20-25.
Madrid, J., S. Sheldon, and G. Cheadle, "A New `Galaxy` on the Horizon: Wireless Telephony", TE&M, Jul. 15, 1990, pp. 49-52.
Mulder, R. J., "Radio Access in Corporate Technology Networks", 2nd International conference on Private Switching Systems and Networks. London, Jun. 23-25, 1992, pp. 110-116.
Polimene, F., "Use your Telephones as a Home Intercom System", Radio-Electronics, May 1991, pp. 44-48.
Spicer, J. J., G. A. Halls, and G. Crisp, "Wireless Office Data Communications using CT2 and DECT", IEE Colloquim on `Personal Communications, Circuits, Systems and Technology` Digest No. 12, London, Jan. 22, 1993, pp. 9/1-4.
van der Hoek, H., "From Cordless PABX to PCN", Telecommunications (International Edition), Mar. 1991, pp. 49-52.
Werbus, V., A. Veloso, and A. Villanueva, "DECT--Cordless Functionality in New Generation Alcatel PABXs", Electrical Communication, 2nd Quarter 1993, pp. 172-180.
McIntosh P. Stuckey
Snelling Richard K.
Tucker Mark
Chin Wellington
Hom Shick
McIntosh P. Stuckey
LandOfFree
Home personal communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Home personal communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Home personal communication system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1326548