Patents for H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission (188,568) |
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08/01/1996 | CA2168298A1 Electrical control system for vehicle options |
08/01/1996 | CA2164762A1 Speech compensation in dual-mode telephone |
07/31/1996 | EP0724337A2 Mast head amplifier |
07/31/1996 | EP0724333A2 High frequency hybrid switch operable in antenna diversity type portable telephone |
07/31/1996 | EP0724330A1 Signal-to-noice enhancer |
07/31/1996 | EP0724308A2 Antenna arrangement |
07/31/1996 | EP0724236A2 Programmable transponder |
07/31/1996 | EP0723720A1 Digital communications equipment using differential quaternary frequency shift keying |
07/31/1996 | EP0701750A4 A wide bandwidth discriminator for use in a radio receiver |
07/31/1996 | EP0700626A4 Radio architecture with dual frequency source selection |
07/31/1996 | EP0628195A4 Method and apparatus for encoding, decoding and compression of audio-type data. |
07/31/1996 | EP0574509A4 Signal processing apparatus and method |
07/31/1996 | CN2232176Y Automatic control voice theft-proof alarm for telephone set |
07/31/1996 | CN2232175Y Power supply controller for communicator |
07/31/1996 | CN2232174Y High frequency front end device for superhigh frequency band receiver |
07/31/1996 | CN2232173Y Remote-control device |
07/31/1996 | CN1128091A Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver |
07/31/1996 | CN1128064A Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing |
07/31/1996 | CN1127960A Electronic device having an RF circuit integrated into a movable housing element |
07/31/1996 | CN1127943A System with multiple source antennae integrated with a lownoise frequency converter |
07/31/1996 | CN1127941A Radiation-proof antenna with new polarization manner for hand communication apparatus |
07/31/1996 | CN1127913A Adaptive digital audio encoding apparatus and a bit allocation method thereof |
07/30/1996 | US5542117 Method and apparatus for batery saving in a communication receiver |
07/30/1996 | US5542114 Radio receiver for suppressing frequency drift in an intermediate frequency stage |
07/30/1996 | US5542112 Method and apparatus for providing reliable signalling tones in a radio communication system |
07/30/1996 | US5542106 Electronic device having an RF circuit integrated into a movable housing element |
07/30/1996 | US5542105 Position sense radio carry case apparatus and method of using same |
07/30/1996 | US5542104 Portable satellite communication equipment with foldable flat antennae common to both transmission and reception |
07/30/1996 | US5542103 Radiotelephone with easily accessible feature activation |
07/30/1996 | US5542096 Method for a transmitter to compensate for varying loading without an isolator |
07/30/1996 | US5542095 In a communications system |
07/30/1996 | US5541985 Portable electronic device having an external I/O unit and power source integral therewith |
07/30/1996 | US5541956 Adaptive equalizer and adaptive diversity equalizer |
07/30/1996 | US5541954 Frequency hopping communication method and apparatus changing a hopping frequency as a result of a counted number of errors |
07/30/1996 | US5541813 Portable telephone apparatus having case with wiring member embedded in a molded plastic hinge |
07/30/1996 | US5541670 Electric apparatus and connector |
07/30/1996 | US5541610 Antenna for a radio communication apparatus |
07/30/1996 | US5541583 Arrangement for interrogating portable data communication devices |
07/30/1996 | US5541469 Resonator utilizing width expansion mode |
07/25/1996 | WO1996022661A2 Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase time and energy |
07/25/1996 | WO1996022640A1 Process for transmitting spoken information |
07/25/1996 | WO1996022639A1 Method and apparatus for the formatting of data for transmission |
07/25/1996 | WO1996022638A2 Orthogonal code division multiple access communication system having multicarrier modulation |
07/25/1996 | WO1996022634A1 Conformant compact portable cellular phone case system and connector |
07/25/1996 | WO1996022633A1 Universal controller for radio receivers and ancillary equipment |
07/25/1996 | WO1996015627A3 System and method for transmitting picture or sound signals |
07/25/1996 | CA2210742A1 Conformant compact portable cellular phone case system and connector |
07/24/1996 | EP0723378A2 System connecting telephone network access devices to a bus connector |
07/24/1996 | EP0723338A2 Switching circuit |
07/24/1996 | EP0723337A2 Switching circuit and composite arrangement |
07/24/1996 | EP0723165A1 Improvements in or relating to transponder communications |
07/24/1996 | EP0722648A1 Radio communications device and method for intersystem handover |
07/24/1996 | EP0722637A1 Protection switching apparatus and method |
07/24/1996 | EP0722636A1 Method of increasing signal quality by adjusting the spreading ratio in a cdma cellular radio system |
07/24/1996 | EP0722627A1 Improvements in or relating to zero if receivers |
07/24/1996 | EP0722603A1 Method and apparatus for performing reduced rate variable rate vocoding |
07/24/1996 | EP0671081A4 Method and apparatus for automatic transfer of control from an internal processor to an external computer. |
07/24/1996 | EP0497769B1 System with compact spectrum |
07/24/1996 | EP0458821B1 Transponder system |
07/24/1996 | CN1127575A Method for realizing frequency hopping and a base station equipment |
07/24/1996 | CN1127563A Transmission system for quasi-periodic signals |
07/24/1996 | CN1127552A Method and apparatus for controlling the exposure to RF transmissions |
07/24/1996 | CN1127454A Digital data receiver |
07/24/1996 | CN1032398C Data bus interface apparatus |
07/23/1996 | US5539858 Voice coding communication system and apparatus |
07/23/1996 | US5539832 Multi-channel signal separation using cross-polyspectra |
07/23/1996 | US5539829 Subband coded digital transmission system using some composite signals |
07/23/1996 | US5539781 Combining diversity apparatus with squelch function |
07/23/1996 | US5539775 For communicating pulse coded information between low power transceivers |
07/23/1996 | US5539770 Spread spectrum modulating apparatus using either PSK or FSK primary modulation |
07/23/1996 | US5539769 Adaptive fuzzy frequency hopping system |
07/23/1996 | US5539660 Multi-channel common-pool distributed data storage and retrieval system |
07/23/1996 | US5539566 Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system |
07/23/1996 | US5539477 Video-signal transmitter-receiver and a signal transmission apparatus utilizing the same |
07/23/1996 | US5539391 Remote controller for controlling turning appliances on and off |
07/23/1996 | US5539390 Method for setting addresses for series-connectd apparatuses |
07/23/1996 | US5539194 Modular hand-held data entry system |
07/23/1996 | US5539193 Modular hand-held data entry system |
07/23/1996 | CA2109919C Antenna coupling apparatus for a cordless telephone |
07/23/1996 | CA2084990C Transmitter filter with integral directional coupler for cellular telephone |
07/18/1996 | WO1996021975A1 Method and apparatus for determining a masked threshold |
07/18/1996 | WO1996021906A1 Method and device for controlling the operation of a portable electronic object supplied with power via an antenna |
07/18/1996 | WO1996021900A1 Automatic cellular phone battery charging by mobile personal computer |
07/18/1996 | DE19600406A1 Generation of encrypted speech messages for digital mobile communications system contg. transcoder |
07/18/1996 | DE19502072A1 Radio receiver for radio remote control of light beacons/towers, lights etc |
07/17/1996 | EP0722227A1 Spread spectrum diversity transmitter/receiver |
07/17/1996 | EP0722226A1 A method and circuit for filtering disturbances in a radio receiver |
07/17/1996 | EP0722225A2 Audio signal coding through short time spectra and a psychoacoustical model |
07/17/1996 | EP0722224A2 Method for setting addresses for electronic appliances |
07/17/1996 | EP0722215A1 PLL-FM demodulator |
07/17/1996 | EP0722155A1 Transmitter-receiver for non-contact IC card system |
07/17/1996 | EP0722094A1 Transmitter-receiver for non-contact IC card system |
07/17/1996 | EP0721713A1 A method and apparatus for receiving and decoding signals using partial de-correlation |
07/17/1996 | EP0721702A1 Line interface apparatus and method for isolating data terminal equipment from the line |
07/17/1996 | EP0721701A1 A method of power conservation |
07/17/1996 | EP0721700A1 Measurement of gain error in a base station receiver, and improvement in field strength measurement |
07/17/1996 | EP0721616A1 Method and apparatus for providing information concerning products, using radio frequency transmissions |
07/17/1996 | EP0506708B1 Method and apparatus for random fm noise cancellation |
07/17/1996 | CN1127054A Method for determining a phase error in a radio-frequency signal, and a receiver |
07/17/1996 | CN1127051A CDMA demodulation circuit and demodulating method |