| 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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| 01/21/1998 | EP0820155A2 Duplexer |
| 01/21/1998 | EP0820154A2 Arrangement for transmitting and receiving radio frequency signal at two frequency bands |
| 01/21/1998 | EP0820153A2 Radio selective calling receiver |
| 01/21/1998 | EP0820052A2 Voice-coding-and-transmission system |
| 01/21/1998 | EP0820051A2 Method and apparatus for measuring the noise content of transmitted speech |
| 01/21/1998 | EP0819343A1 A method and a circuit of self calibrating and testing qpsk transceivers |
| 01/21/1998 | EP0819342A1 Universal controller for radio receivers and ancillary equipment |
| 01/21/1998 | EP0727112A4 Dual-mode wireless unit with two spread-spectrum frequency bands |
| 01/21/1998 | EP0708959A4 A fixed bit rate speech encoder/decoder |
| 01/21/1998 | EP0654192B1 Oscillator frequency divide-down transmit offset scheme for reducing self-quieting |
| 01/21/1998 | CN2273077Y Battery for mobile telephone with radio function |
| 01/21/1998 | CN1171023A Radio selection call receiver capable of increasing receiving ratio |
| 01/21/1998 | CN1170992A Radio receivor capable of reducing electromagnetic interference produced by power source changing circuit |
| 01/21/1998 | CN1037141C Use of diversity transmission to relax adjacent channel requirements in mobile telephone systems |
| 01/20/1998 | US5711014 Antenna transmission coupling arrangement |
| 01/20/1998 | US5711013 Conformant compact portable cellular phone case system and connector |
| 01/20/1998 | US5710999 Radio frequency apparatus |
| 01/20/1998 | US5710998 Method and apparatus for improved zero intermediate frequency receiver latency |
| 01/20/1998 | US5710997 Superheterodyne receiver apparatus |
| 01/20/1998 | US5710996 Adaptive noise canceling system and FM radio communication receiver using said system |
| 01/20/1998 | US5710995 Adaptive antenna receiver |
| 01/20/1998 | US5710993 Combined TV/FM receiver |
| 01/20/1998 | US5710991 Apparatus and method for controlling and measuring output power of transmitter |
| 01/20/1998 | US5710988 Mobile data communication device |
| 01/20/1998 | US5710987 Receiver having concealed external antenna |
| 01/20/1998 | US5710985 Wireless portable telephone having antenna retraction detection means |
| 01/20/1998 | US5710984 Radio transceiver with impedance matched test port |
| 01/20/1998 | US5710983 Channel selecting system utilizing a random number generator having a shift register, switches and Boolean function circuit to randomly select a channel frequency |
| 01/20/1998 | US5710977 Apparatus for measuring multipath propagation characteristics |
| 01/20/1998 | US5710862 Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals |
| 01/20/1998 | US5710811 Speech circuit for subscriber telephone apparatus |
| 01/20/1998 | US5710796 Method and receiver for determining a phase error in a radio-frequency signal |
| 01/20/1998 | US5710789 For receiving and processing transmitted signals |
| 01/20/1998 | US5710781 Method for communicating signals |
| 01/20/1998 | US5710768 Method of searching for a bursty signal |
| 01/20/1998 | US5710756 Burst-error resistant ATM microwave link and network |
| 01/20/1998 | US5710605 Remote control unit for controlling a television and videocassette recorder with a display for allowing a user to select between various programming schedules |
| 01/20/1998 | US5710576 Portable electronic apparatus having partial display function |
| 01/20/1998 | US5710556 Device for locating a moving body having a response unit |
| 01/20/1998 | US5710545 Display providing reversible contrasting indicia |
| 01/20/1998 | US5710525 Radio-frequency module with phase lock loop and frequency setting |
| 01/20/1998 | US5709968 Non-aqueous electrolyte secondary battery |
| 01/20/1998 | US5709598 Abrasive tape and method of producing the same |
| 01/20/1998 | US5709012 Belt clip integrated with structure to receive chain clip |
| 01/20/1998 | CA2066540C Multiple user digital receiving apparatus and method with time division multiplexing |
| 01/15/1998 | WO1998001966A1 Semiconductor integrated circuit for communication and battery saving method for the same |
| 01/15/1998 | WO1998001959A1 Method for determining strength of co-channel signals, and a receiver |
| 01/15/1998 | WO1998001958A1 Radio device with circuit boards mounted on radio shielding receptacle and method of assembly |
| 01/15/1998 | WO1998001957A2 Transmission system and receiver with improved detection, and improved detection method |
| 01/15/1998 | WO1998001945A1 Method and apparatus for reducing intermodulation distortion in digital wideband transmission systems |
| 01/15/1998 | WO1998001847A1 Voice activity detector |
| 01/15/1998 | WO1998001840A1 Wireless remote control transmitter for use with consumer entertainment electronics appliance |
| 01/15/1998 | WO1997025790A3 Noise cancellation and noise reduction apparatus |
| 01/15/1998 | DE19627516A1 Mobile radio receiving unit for field strength measurements |
| 01/15/1998 | CA2259161A1 Method and apparatus for reducing intermodulation distortion in digital wideband transmission systems |
| 01/15/1998 | CA2231468A1 Radio device with radio shielding and method of manufacture |
| 01/14/1998 | EP0818923A2 Digital broadcast receiving device |
| 01/14/1998 | EP0818893A2 Radio channel initial transmission scheme for mobile communication system |
| 01/14/1998 | EP0818892A2 Synchronisation of the reverse link in a CDMA communications system |
| 01/14/1998 | EP0818880A2 Gain control circuit for a linear power amplifier |
| 01/14/1998 | EP0818764A1 Multi-functional portable electronic tranceiver |
| 01/14/1998 | EP0818093A1 Process for synchronising the block counter in an rds radio data receiver |
| 01/14/1998 | EP0818084A1 Method and apparatus for performing power control in a mobile communication system |
| 01/14/1998 | EP0818082A1 Process and receiver for the reconstruction of signals distorted by multi-directional diffusion |
| 01/14/1998 | EP0818078A1 Digital filter |
| 01/14/1998 | EP0818060A1 Apparatus and method for adaptive beamforming in an antenna array |
| 01/14/1998 | EP0818037A1 Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase |
| 01/14/1998 | CN2272633Y Double-frequency double-function center-free radio group telephone |
| 01/14/1998 | CN2272632Y Electricity charging type transmitter for megaphone used in teaching |
| 01/14/1998 | CN1170482A Cooling system for telecommunication equipment arranged in a cabinet or similar |
| 01/14/1998 | CN1170468A Contactless energy and data transmission system |
| 01/14/1998 | CN1170467A Contactless energy and data transmission system |
| 01/14/1998 | CN1170324A Base transceiver station and subscriber unit in wireless local loop system using personal handy-phone system and method for operating same |
| 01/14/1998 | CN1170282A Devices for transmitter weights and methods therefor |
| 01/14/1998 | CN1170180A Card reader for portable telephone and portable telephone incorporating the card reader |
| 01/14/1998 | CN1037057C Cricuit for removing random FM noise |
| 01/14/1998 | CN1037056C Amplifier for use in radiotelephone |
| 01/13/1998 | US5708972 Vehicle communication system and method providing high responsivity to multiple polling units |
| 01/13/1998 | US5708970 Wireless sound monitoring apparatus with subaudible squelch control |
| 01/13/1998 | US5708962 Method of reconfiguring a distributed communication system using allocation loading level |
| 01/13/1998 | US5708833 Antenna cap, antenna connectors and telephone line connectors for computer devices utilizing radio and modem cards |
| 01/13/1998 | US5708723 Recording and reproducing apparatus for audio signal |
| 01/13/1998 | US5708722 Microphone expansion for background noise reduction |
| 01/13/1998 | US5708706 Connector lead for a transceiver unit |
| 01/13/1998 | US5708705 Wallhung arrangement for a cordless telephone |
| 01/13/1998 | US5708682 Demodulator control system and a receiver capable of quickly acquiring a desired carrier wave |
| 01/13/1998 | US5708681 Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver |
| 01/13/1998 | US5708680 Network utilizing a controller and base transceivers to route voice packets |
| 01/13/1998 | US5708679 Hitless ultra small aperture terminal satellite communication network |
| 01/13/1998 | US5708662 Transmission method and receiving apparatus of emergency information which is frequency-multiplexed on an FM broadcast radio wave |
| 01/13/1998 | US5708658 Communication terminal |
| 01/13/1998 | US5708402 Surface acoustic wave device improved in convolution efficiency, receiver using it, communication system using it, and method for producing surface acoustic wave device improved in convoluting efficiency |
| 01/13/1998 | US5706940 Water-resistant container for portable radio |
| 01/12/1998 | CA2210214A1 Cdma receiver with weighted interference cancellation |
| 01/08/1998 | WO1998000983A2 Method and apparatus for using duality and also a system for communicating digital information |
| 01/08/1998 | WO1998000968A1 Ir transmitter with magnetic stripe card reader |
| 01/08/1998 | WO1998000929A1 Device and method for radio transmitters |
| 01/08/1998 | WO1998000927A1 Dual band transceiver |
| 01/08/1998 | WO1998000926A1 Untethered microphone and base unit |
| 01/08/1998 | WO1998000920A1 A method of and an arrangement for controlling an oscillator |