| 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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| 04/24/1997 | CA2234871A1 A system of fm data broadcasting and a method of processing data signals thereof |
| 04/24/1997 | CA2208560A1 Method and apparatus for estimating and separating noise contained in spread spectrum signal |
| 04/23/1997 | EP0769850A1 High frequency tuner |
| 04/23/1997 | EP0769227A1 Signal protection and monitoring system |
| 04/23/1997 | CN1148452A Method and apparatus for signal acquisition and channel estimation using multiple antennas |
| 04/23/1997 | CN1148444A Radio transmission system and a radio apparatus for use in such system |
| 04/23/1997 | CN1148314A sound volume setting device for portable telephone |
| 04/23/1997 | CN1148293A Intermittent operation receiver with variable pre-heat time for its phase-locked circuit |
| 04/23/1997 | CN1148292A Digital data encoding apparatus and method thereof |
| 04/22/1997 | US5623577 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
| 04/22/1997 | US5623557 Method and apparatus for data encoding and data recording medium |
| 04/22/1997 | US5623533 Mobile communication end device with low power operation mode |
| 04/22/1997 | US5623511 Spread spectrum code pulse position modulated receiver having delay spread compensation |
| 04/22/1997 | US5623487 Doubly orthogonal code and frequency division multiple access communication system |
| 04/22/1997 | US5623318 Ghost cancelling method and apparatus using canonical signed digit codes |
| 04/22/1997 | CA2083793C Antenna operating mechanism for a portable radio communication apparatus |
| 04/22/1997 | CA2068254C Mobile telephone device wherein an adder supplies a sum of audio and out-of audio band signals to a compressor circuit |
| 04/22/1997 | CA2031437C Power amplifying unit using a power amplifying module |
| 04/17/1997 | WO1997014229A1 Process and device for the scalable coding of audio signals |
| 04/17/1997 | WO1997014228A1 A method and a circuit of self calibrating and testing qpsk transceivers |
| 04/17/1997 | WO1997014227A1 Co-channel interference reduction |
| 04/17/1997 | WO1997014158A2 Receiver circuit |
| 04/17/1997 | WO1997014057A1 A gps receiver and method for processing gps signals |
| 04/17/1997 | WO1997014056A1 Combined gps positioning system and communications system utilizing shared circuitry |
| 04/17/1997 | WO1997014055A1 Method and apparatus for determining the location of an object which may have an obstructed view of the sky |
| 04/17/1997 | WO1997014054A1 Client-server-based remote locator device |
| 04/17/1997 | WO1997014053A1 Improved gps receivers and garments containing gps receivers and methods for using these gps receivers |
| 04/17/1997 | WO1997014049A2 Gps receiver and method for processing gps signals |
| 04/17/1997 | DE19538310A1 Signal time compressor with signal input and output |
| 04/17/1997 | DE19538096A1 Armband insert to hold multi-functional instruments for watches, manometers, transmitter or receiver |
| 04/17/1997 | DE19537772A1 Hands-free communication system for telephone terminal |
| 04/17/1997 | CA2667775A1 Gps receiver and method for processing gps signals |
| 04/16/1997 | EP0768804A2 Mobile communication system capable of effectively carrying out a hand-over control |
| 04/16/1997 | EP0768796A1 Circuit for feeding an antenna signal |
| 04/16/1997 | EP0768632A2 Radio receiver for road vehicles with RDS decoder for digital signals |
| 04/16/1997 | EP0767995A1 Method and apparatus for signal acquisition and channel estimation using multiple antennas |
| 04/16/1997 | EP0767993A1 Spread-spectrum changeable base station |
| 04/16/1997 | EP0767976A1 Phased array spread spectrum system and method |
| 04/16/1997 | EP0767945A2 Wireless communication system for reliable communication between a group of apparatuses |
| 04/16/1997 | EP0632947A4 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization. |
| 04/16/1997 | CN2252457Y Back clip for pager |
| 04/16/1997 | CN2252456Y Power load wireless control receiver |
| 04/16/1997 | CN1147883A Method of error protected transmission, method of error protected reception of data and transmission system for transmission of data |
| 04/16/1997 | CN1147751A Communication terminal |
| 04/16/1997 | CN1147737A Transmitter and receiver for orthogonal frequency division multiplexing signal |
| 04/16/1997 | CN1147733A Descrambler |
| 04/16/1997 | CN1147706A Antenna switching circuit and wireless communication system |
| 04/16/1997 | CN1147704A Non-aqueous electrolyte secondary battery |
| 04/15/1997 | US5621913 System with chip to chip communication |
| 04/15/1997 | US5621856 Digital encoder with dynamic quantization bit allocation |
| 04/15/1997 | US5621855 Subband coding of a digital signal in a stereo intensity mode |
| 04/15/1997 | US5621854 Method and apparatus for objective speech quality measurements of telecommunication equipment |
| 04/15/1997 | US5621800 Integrated circuit that performs multiple communication tasks |
| 04/15/1997 | US5621793 TV set top box using GPS |
| 04/15/1997 | US5621768 Generalized noise cancellation in a communication channel |
| 04/15/1997 | US5621762 Method for modulating a digital information |
| 04/15/1997 | US5621756 Method super-regenerative transceiver, and computer system for providing short range communication with reduced current drain |
| 04/15/1997 | US5621730 Multiple user digital receiver apparatus and method with time division multiplexing |
| 04/15/1997 | US5621659 Central control device and operation devices |
| 04/15/1997 | US5621618 Portable electronic apparatus with battery pack secured by first and second sequentially engageable recesses |
| 04/15/1997 | US5621458 Audio and video docking and control system |
| 04/15/1997 | US5621411 Positioning with RF-ID transponders |
| 04/15/1997 | US5620163 Supporting clip device |
| 04/15/1997 | US5620120 Fixing apparatus for a portable telephone |
| 04/15/1997 | CA2074115C Output level control circuit for use in rf transmitter |
| 04/15/1997 | CA2046369C High performance digitally multiplexed transmission system |
| 04/10/1997 | WO1997013349A2 Receiver architecture for receiving angle-modulated/scanned carrier signals of different frequency |
| 04/10/1997 | WO1997013339A1 Dab receiver, apparatus and method for a format conversion of a dab data sequence |
| 04/10/1997 | WO1997013338A1 Receiver and method for providing data in an improved format |
| 04/10/1997 | WO1997013332A1 A hands free mobile phone unit |
| 04/10/1997 | WO1997013331A1 Bypass device in an amplifier unit |
| 04/10/1997 | WO1997013292A1 Burst-error resistant atm microwave link and network |
| 04/10/1997 | WO1997013290A1 Multi-axis vertically corrected antenna for handheld wireless communications devices |
| 04/10/1997 | WO1997010650A3 Radio apparatus with several frequency ranges |
| 04/10/1997 | DE19640867A1 Multiplex radio receiver for Radio Data System |
| 04/10/1997 | DE19536233A1 Level control method for amplifier repeater for mobile radio systems |
| 04/10/1997 | CA2233841A1 Multi-axis vertically corrected antenna for handheld wireless communications devices |
| 04/09/1997 | EP0767550A1 Interband frequency hopping system for cellular radio communication system with mobile stations, and stations therefor |
| 04/09/1997 | EP0767543A2 Code division multiplex communication with interference suppression |
| 04/09/1997 | EP0767542A2 Transmit-receive switch |
| 04/09/1997 | EP0767541A2 Car radio with electronic theft protection |
| 04/09/1997 | EP0767540A2 Radio transmitter |
| 04/09/1997 | EP0767508A2 Antenna |
| 04/09/1997 | EP0586548B1 Radio frequency error detection and correction system |
| 04/09/1997 | CN2251839Y Voice-frequency signal transceiver |
| 04/09/1997 | CN2251838Y Telecontrol calling device for patient |
| 04/09/1997 | CN1147321A Direct sequence CDMA coherent upline detector |
| 04/09/1997 | CN1147188A Digital radio telecommunication equipment having function of measuring received electric field strength |
| 04/09/1997 | CN1147186A Two band 25 channel cordless telephone system |
| 04/09/1997 | CN1147160A Dual function antenna structure and portable radio having same |
| 04/09/1997 | CN1034543C Method for regulating power in digital mobile telephone system |
| 04/09/1997 | CN1034542C Control system including switching circuit for ensuring proper operation when operating power is removed from portion of control system |
| 04/08/1997 | US5619684 Method and apparatus for consistent user interface in a multiple application personal communications device |
| 04/08/1997 | US5619577 Transmission system, and a transmitter and a receiver for use in such a system |
| 04/08/1997 | US5619536 Digital superheterodyne receiver and baseband filter method used therein |
| 04/08/1997 | US5619531 Wireless radio modem with minimal interdevice RF interference |
| 04/08/1997 | US5619529 Non-contact IC card and non-contact IC card reader/writer |
| 04/08/1997 | US5619527 Chip-based selective receiving system for a spread spectrum signal |
| 04/08/1997 | US5619526 CDMA base station modulator for digital cellular mobile communication systems |
| 04/08/1997 | US5619525 Closed loop power control for low earth orbit satellite communications system |