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Class Information
Number: 455/462
Name: Telecommunications > Radiotelephone system > Including private cordless extension system
Description: Subject matter wherein a base transceiver having direct connection to a landline telephone switching system provides restricted telephony access to a pre-selected cordless extension unit.










Sub-classes under this class:

Class Number Class Name Patents
455/464 Channel selection or allocation 683
455/463 Multi-users 269


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
5943628 Radiotelephone proximity detector Aug. 24, 1999
5940765 Radio communications systems and methods for jittered beacon transmission Aug. 17, 1999
5930719 Data and voice cordless telephone system Jul. 27, 1999
5930728 Up converted home base station Jul. 27, 1999
5926760 System for providing features for a land-line supported private base station operable in a cellular system Jul. 20, 1999
5926766 Cordless telephone with division of channels into groups of channels Jul. 20, 1999
5924030 Cellular extension of a fixed communications network Jul. 13, 1999
5918181 Method and apparatus for tracking location of wireless terminals in a nanocellular digital cordless terminal network coupled to a local exchange Jun. 29, 1999
5915227 Cordless telephone Jun. 22, 1999
5913163 Integrated local communication system Jun. 15, 1999
5911119 Secure cordless telephone extension system and method Jun. 8, 1999
5907289 Radio selective call receiver May. 25, 1999
5903846 Communication channel coordination system and method May. 11, 1999
5901366 Program selection method and apparatus using cordless telephone set May. 4, 1999
5898929 Method and apparatus for synchronizing private radio systems Apr. 27, 1999
5892792 12-chip coded spread spectrum modulation for direct conversion radio architecture in a digital cordless telephone Apr. 6, 1999
5890069 Cordless telephone micro-cellular system Mar. 30, 1999
5887260 Mobile communication apparatus, fixed communicaton apparatus, communication system and communication method Mar. 23, 1999
5878343 Telecommunications systems arrangement Mar. 2, 1999
5870678 Cordless telephone apparatus Feb. 9, 1999
5870673 Methods and systems for concurrent receipt of incoming calls from a wide area cellular network and a private radio communications network Feb. 9, 1999
5867782 Method of indicating outer communication range in digital cordless telephone system Feb. 2, 1999
5854983 Digital cordless telephone system Dec. 29, 1998
5852662 Scrambler bypass system Dec. 22, 1998
5850601 Cordless telephone apparatus Dec. 15, 1998
5832386 Portable telephone set with automatic sound generation when it is detected that the set is within a service area of a desired portable communication apparatus Nov. 3, 1998
5832385 Image transmission apparatus including main and sub facsimile units designed to establish radio communicating Nov. 3, 1998
5826196 Multi-line remotely-accessible controller for cordless telephones Oct. 20, 1998
5818918 Personal handy phone system Oct. 6, 1998
5812543 Mobile communication method and system Sep. 22, 1998
5806000 System and method for implementing short message service extension phones within a radio telecommunications network Sep. 8, 1998
5805999 Cordless phone system and a method for estimating location of a cordless phone in said cordless phone system Sep. 8, 1998
5805998 Cordless telephone apparatus Sep. 8, 1998
5805678 Cordless subunit facsimile system Sep. 8, 1998
5802476 Cordless telephone system having base unit with speaker Sep. 1, 1998
5793855 Integrated wireless communication system Aug. 11, 1998
5794152 Cordless telephone Aug. 11, 1998
5781594 Data transfer circuit for use with a base unit or a handset of a telephone system Jul. 14, 1998
5765111 Selective mobile station calling method for digital cordless telephone and system Jun. 9, 1998
5757902 Telephone exchange for wire telephone and radio telephone May. 26, 1998
5758289 Telephone system and bell sound detecting method thereof May. 26, 1998
5758292 Telephone and cordless telephone capable of suppressing spurious interference May. 26, 1998
5752195 Cordless telephone terminal May. 12, 1998
5748622 Burst alignment procedure May. 5, 1998
5745552 Line communication systems incorporating mains electricity conductors for communications Apr. 28, 1998
5732356 Method and an arrangement for sound reconstruction during erasures Mar. 24, 1998
5732355 Telephone system Mar. 24, 1998
5724661 Cordless telephone system which converts a protocol for call connection Mar. 3, 1998
5712848 Time division multiplex communications system including means for reducing undesired echoes resulting from circuit delays Jan. 27, 1998
5703934 Cordless telephone with integral caller ID display Dec. 30, 1997

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