| 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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| 09/05/1995 | US5448720 Information processing system for obtaining status data of a simplex system by a standby system of a duplex system |
| 09/05/1995 | US5448620 Volume control for a dual mode communications device |
| 09/05/1995 | US5448600 Method for selecting propagation paths retained for receiving messages transmitted by CDMA radiocommunication |
| 09/05/1995 | US5448599 Method and arrangement for radiocommunication using a band-spreading technique |
| 09/05/1995 | US5448593 Frequency hopping time-diversity communications systems and transceivers for local area networks |
| 09/05/1995 | US5448573 Automatic circuit switching device restorable without a hit and its method |
| 09/05/1995 | US5448572 Spare signal line switching method and apparatus |
| 09/05/1995 | US5448562 Bi-directional bus system and transmitting, receiving, and communication methods for same |
| 09/05/1995 | US5448534 Radio with recording and reproducing function |
| 09/05/1995 | US5448370 Automatic detection of kind of cable converter unit coupled to a VCR |
| 09/05/1995 | US5448242 Modulation field detection, method and structure |
| 09/05/1995 | US5448197 Frequency conversion circuit and mixing circuit including the same |
| 09/05/1995 | CA2054173C Digital radio receiver having amplitude limiter and logarithmic detector |
| 09/05/1995 | CA2047192C Radio having removable memory means for storing radio user validation code |
| 09/05/1995 | CA2000372C Transmitter attachment for hunting arrows |
| 08/31/1995 | WO1995023464A1 Method and apparatus for time division multiplexing the use of spreading codes in a communication system |
| 08/31/1995 | WO1995023460A1 Method and apparatus for correction and limitation of transmitter power on the reverse link of a mobile radio telephone system |
| 08/31/1995 | WO1995023458A2 Method and apparatus for automatic modulation calibration in a radio transmitter |
| 08/31/1995 | WO1995023454A1 Method and device for automatically controlling gain in receiver circuits |
| 08/31/1995 | WO1995023453A1 Power amplifier having nested amplitude modulation controller and phase modulation controller |
| 08/31/1995 | WO1995023393A1 Electronic identification system |
| 08/31/1995 | WO1995019074A3 High-frequency wideband tuner |
| 08/31/1995 | DE4430531C1 Chipcard holder for combined car radio and mobile telephone |
| 08/31/1995 | DE19506175A1 Antenne und Funktelephon, das dieselbe verwendet Antenna and radio telephone, the same used |
| 08/31/1995 | CA2158269A1 Method and apparatus for time division multiplexing the use of spreading codes in a communication system |
| 08/30/1995 | EP0669728A2 Mobile transceiver |
| 08/30/1995 | EP0669727A2 Connection of electronic devices |
| 08/30/1995 | EP0669726A2 Network system having automatic reconstructing function of logical paths |
| 08/30/1995 | EP0669725A1 Radio receiver |
| 08/30/1995 | EP0669724A1 High-efficiency encoding method, high-efficiency decoding method, high-efficiency encoding device, high-efficiency decoding device, high-efficiency encoding/decoding system and recording media |
| 08/30/1995 | EP0669068A1 Method and apparatus for operating with a hopping control channel in a communication system |
| 08/30/1995 | EP0669060A1 Radiation shielding apparatus for a radio transmitting device |
| 08/30/1995 | EP0669059A1 Automatic gain control for reducing effects of jamming |
| 08/30/1995 | EP0669058A1 Programmable noise bandwidth reduction by means of digital averaging |
| 08/30/1995 | EP0395755B1 Radio telephone system with base unit and mobile unit, and associated method of registering an identification code |
| 08/30/1995 | CN1107626A 寻呼接收机 Paging receiver |
| 08/30/1995 | CN1107619A Adaptive battery charging system |
| 08/29/1995 | US5446924 Method for assuring data integrity during a repeater transition |
| 08/29/1995 | US5446923 Mixer using fundamental frequency or second or third harmonic frequencies of a local oscillator for maximized resultant frequency mixer product |
| 08/29/1995 | US5446916 Variable length codeword packer |
| 08/29/1995 | US5446783 Cellular phone with infrared battery pack |
| 08/29/1995 | US5446770 Time division duplex transceiver |
| 08/29/1995 | US5446769 Method for providing hand-offs in a frequency hopping communication system |
| 08/29/1995 | US5446757 Code-division-multiple-access-system based on M-ary pulse-position modulated direct-sequence |
| 08/29/1995 | US5446725 Method of changing over path switch in optical transmission device |
| 08/29/1995 | US5446707 Device for reducing electromagnetic interference in disc recording and/or reproducing apparatus with radio receiving function |
| 08/29/1995 | US5446464 Transceiver module |
| 08/29/1995 | US5446453 Residential facility control system |
| 08/29/1995 | US5446421 Local oscillator phase noise cancelling modulation technique |
| 08/29/1995 | US5446415 Intermediate frequency amplifier circuit |
| 08/24/1995 | WO1995022858A1 Process for the cascade coding and decoding of audio data |
| 08/24/1995 | WO1995022857A1 Method and apparatus for controlling encoding rate in a communication system |
| 08/24/1995 | WO1995022817A1 Method and apparatus for mitigating audio degradation in a communication system |
| 08/24/1995 | DE4405885A1 Mobile radio station antenna leads damping compensation device |
| 08/24/1995 | DE4405628A1 Portable HF transmitter with vertical rod antenna |
| 08/24/1995 | DE4405556A1 Receiver of electromagnetically generated free electric waves by electrolyte resonance |
| 08/24/1995 | DE4405246A1 Danger warning system for cars |
| 08/23/1995 | EP0668673A1 Code division multiplex transmitter/receiver |
| 08/23/1995 | EP0668663A1 Sliding correlation detector |
| 08/23/1995 | EP0668662A1 Receiver and repeater for spread spectrum communication |
| 08/23/1995 | EP0668661A1 Circuit for the correction of non-linearity of the final amplifier in a radio data transmission system |
| 08/23/1995 | EP0668656A1 A tuner for a satellite broadcasting receiver |
| 08/23/1995 | EP0668645A1 Portable electric cable reel |
| 08/23/1995 | EP0667995A1 A data transmission method and a cdma/fdma radio system |
| 08/23/1995 | EP0667994A1 Method and arrangement for controlling the operation of a high-frequency power amplifier |
| 08/23/1995 | EP0403492B1 Bandswitching a two-way radio having a pll |
| 08/23/1995 | CN2206011Y Movable telephone without holding receiver |
| 08/23/1995 | CN1107269A A personal communications system with automatic mode selection |
| 08/23/1995 | CN1029579C Apparatus and method of DC offset correction for receiver |
| 08/22/1995 | US5444869 Method and apparatus in a communication device for automatic transfer of control from an internal processor to an external computer |
| 08/22/1995 | US5444868 Modular mobile radio system |
| 08/22/1995 | US5444867 Adapter unit for adaptively supplying a portable radio telephone with power |
| 08/22/1995 | US5444866 Device for shielding a cellular telephone user from electromagnetic waves |
| 08/22/1995 | US5444865 Generating transmit injection from receiver first and second injections |
| 08/22/1995 | US5444864 Method and apparatus for cancelling in-band energy leakage from transmitter to receiver |
| 08/22/1995 | US5444863 Radio communication apparatus having common circuits usable by transmitter and receiver systems |
| 08/22/1995 | US5444862 Circuit for stopping data transmission responding to low level and rapid fall of received electric field |
| 08/22/1995 | US5444787 Audio signal processing device |
| 08/22/1995 | US5444783 Automatic sound volume control device for acoustic instruments |
| 08/22/1995 | US5444778 Apparatus incorporating a cellular telephone |
| 08/22/1995 | US5444745 Diversity reception arrangement |
| 08/22/1995 | US5444744 Phase locked loop for synchronizing with carrier wave |
| 08/22/1995 | US5444741 Filtering method and device for reducing digital audio signal pre-echoes |
| 08/22/1995 | US5444738 Signal processing circuit for selective waveform equalization without signal collision and omission |
| 08/22/1995 | US5444737 Wireless data transceiver |
| 08/22/1995 | US5444736 Radio communication apparatus having an automatic frequency control circuit for controlling a transmission frequency on the basis of a reception frequency |
| 08/22/1995 | US5444708 Time-division multiplex radio transmission apparatus |
| 08/22/1995 | US5444564 Optoelectronic controlled RF matching circuit |
| 08/22/1995 | US5444306 Mobile radio telephone apparatus |
| 08/22/1995 | CA2097057C Dynamically biased amplifier |
| 08/22/1995 | CA2035455C Linear transmitter |
| 08/17/1995 | WO1995022232A1 Receiver |
| 08/17/1995 | WO1995022213A1 Method and system for cdma mobile radio communication |
| 08/17/1995 | WO1995022209A1 Method and apparatus for multiuser-interference reduction |
| 08/17/1995 | WO1995022208A1 Decorrelating receiver for asynchronous cdma channels |
| 08/17/1995 | WO1995022197A1 Adaptive system for self-tuning and selecting a carrier frequency in a radio frequency communication system |
| 08/17/1995 | WO1995022138A1 Method and apparatus for communicating with a product label |
| 08/17/1995 | WO1995019073A3 Receiver having an adjustable bandwidth filter |
| 08/17/1995 | WO1995018491A3 Data communication device |
| 08/17/1995 | CA2181792A1 Adaptive system for self-tuning and selecting a carrier frequency in a radio frequency communication system |