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) |
---|
11/29/1994 | US5369788 Miniature portable radio communication apparatus |
11/29/1994 | US5369782 Radio relay system, including interference signal cancellation |
11/29/1994 | US5369779 Two-way MMDS communications system |
11/29/1994 | US5369724 Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients |
11/29/1994 | US5369664 Mobile communication system |
11/29/1994 | US5369642 Switcher for redundant signal transmission system |
11/29/1994 | US5369470 FM receiver which detects and responds to receiving and interference states |
11/29/1994 | US5369412 Sidelobe cancellation and diversity reception using a single array of auxiliary antennas |
11/29/1994 | CA2124411A1 Process and device for amplitude modulation of a radiofrequency signal |
11/29/1994 | CA2018050C Structure of a duplexer for radio equipment |
11/29/1994 | CA1333295C Global positioning system course acquisition code receiver |
11/24/1994 | WO1994027392A1 A communication device for computer networks, particularly of the cordless type |
11/24/1994 | WO1994027389A1 Time diversity receiver |
11/24/1994 | WO1994027381A1 Dynamic control of transmitting power at a transmitter and attenuation at a receiver |
11/24/1994 | WO1994027379A1 Dual-pass rake receiver for a digital radio link between a fixed and a mobile radio unit |
11/24/1994 | WO1994027377A1 Standby power saving in mobile phones |
11/24/1994 | WO1994027376A1 Tunable filter circuit and method therefor |
11/24/1994 | WO1994027375A1 A digital frequency conversion and tuning scheme for microwave radio receivers and transmitters |
11/24/1994 | WO1994027282A1 Portable music performance device |
11/24/1994 | WO1994027168A1 Electromagnetic hidden object detector |
11/24/1994 | DE4316526A1 Transmitter with a controllable power amplifier |
11/24/1994 | CA2163088A1 Portable music performance device |
11/24/1994 | CA2162722A1 Premises, peripheral and vehicular local area networking |
11/24/1994 | CA2139770A1 Standby power saving in mobile phones |
11/24/1994 | CA2139769A1 Dynamic control of transmitting power at a transmitter and attenuation at a receiver |
11/24/1994 | CA2139746A1 A digital frequency conversion and tuning scheme for microwave radio receivers and transmitters |
11/24/1994 | CA2138033A1 Tunable filter circuit and method therefor |
11/23/1994 | EP0625833A1 Transmission power control of mobile station in a mobile radio telephone system |
11/23/1994 | EP0625832A1 Reading device for a detection label |
11/23/1994 | EP0625831A2 Radio receiver-transmitter apparatus |
11/23/1994 | EP0625830A2 Satellite receiver with circuit for generating DC-voltages with a possible superimposed AC-voltage for control of the external unit |
11/23/1994 | EP0625136A1 Higher aldehyde separation process |
11/23/1994 | CN2183640Y Improved clamping device for call device |
11/23/1994 | CN2183639Y Middle low power television and frequency modulation multi-function device |
11/23/1994 | CN1095534A Method and apparatus of estimating channel quality in a receiver |
11/23/1994 | CN1095533A Communication device with code sequence selection system |
11/23/1994 | CN1095532A Anti-lose alarm apparatus for moving telephone |
11/23/1994 | CN1095531A Radio paging receiver |
11/22/1994 | US5367608 Transmitter, encoding system and method employing use of a bit allocation unit for subband coding a digital signal |
11/22/1994 | US5367562 Method and device for returning to a normal communication link after using a standby link |
11/22/1994 | US5367556 Portable radio telephone used with an adaptor unit having a hand-free circuit |
11/22/1994 | US5367539 Digital block processor for processing a plurality of transmission channels in a wireless radiotelephony system |
11/22/1994 | US5367533 Dynamic capacity allocation CDMA spread spectrum communications |
11/22/1994 | US5367309 Cellular phone shield |
11/22/1994 | US5367296 Communication signal device |
11/22/1994 | US5367268 Transmission signal output control circuit |
11/22/1994 | CA2019935C Output waveform control circuit |
11/22/1994 | CA1333193C Local oscillator feedthru cancellation circuit |
11/17/1994 | EP0624983A2 Synchronization arrangement for a compressed video signal |
11/17/1994 | EP0624982A2 Clock apparatus for a compressed video signal |
11/17/1994 | EP0624960A2 A method and apparatus for imparting a linear frequency response to a signal |
11/17/1994 | EP0624959A1 FM receiver with an oversampling circuit |
11/17/1994 | EP0624958A2 Remote control system for audio/visual equipment |
11/17/1994 | EP0624957A1 Antenna input receiving circuit |
11/17/1994 | EP0624948A1 Tuner for radio data system |
11/17/1994 | EP0624866A2 Method for frequency analysis |
11/17/1994 | EP0624291A1 Error protection in a subband coder. |
11/17/1994 | EP0624275A1 Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors |
11/17/1994 | EP0606231A4 Combination liquid crystal display driver and varactor voltage power supply. |
11/17/1994 | EP0602213A4 Multiple cavity tuning of a transmitter output in a communication system. |
11/17/1994 | DE4316073A1 Mobile radio device with radiation protection |
11/17/1994 | DE4315847A1 Connection between a transmitter and/or receiver and an antenna |
11/16/1994 | CN2183054Y Base for charging cells of radio set |
11/16/1994 | CN2183053Y Cabinet for microphone |
11/15/1994 | US5365553 Transmitter, encoding system and method employing use of a bit need determiner for subband coding a digital signal |
11/15/1994 | US5365550 Initial synchronization and tracking circuits for spread spectrum receivers |
11/15/1994 | US5365546 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions |
11/15/1994 | US5365544 CDMA communications and geolocation system and method |
11/15/1994 | US5365543 Transmitting circuit and receiving circuit |
11/15/1994 | US5365500 Key control method and control device for a cassette tape recorder |
11/15/1994 | US5365282 Television system module with remote control code determination |
11/15/1994 | US5365247 Transmitters and receivers with antennas |
11/15/1994 | US5365235 Method and apparatus for reducing residual RF power in a transmitter/receiver antenna |
11/15/1994 | US5364280 Printed circuit board connector assembly |
11/15/1994 | CA2123543A1 Method and apparatus for mitigating speech loss in a communication system |
11/10/1994 | WO1994026051A1 Quantized coherent rake receiver |
11/10/1994 | WO1994026049A2 Wireless data transceiver |
11/10/1994 | WO1994026039A1 Method for assuring data integrity during a repeater transition |
11/10/1994 | WO1994026038A1 Multiple antenna selection and antenna cap for computer devices utilizing radio and modem cards |
11/10/1994 | WO1994026037A1 Self-oscillating mixer circuits and methods therefor |
11/10/1994 | WO1994026036A1 Apparatus and method for substantially eliminating noise in an audible output signal |
11/10/1994 | WO1994026035A1 Use of diversity transmission to relax adjacent channel requirements in mobile telephone systems |
11/10/1994 | WO1994025999A1 Antenna for an electronic apparatus |
11/10/1994 | WO1994025997A1 Apparatus and method for varying the coupling of a radio frequency signal |
11/10/1994 | WO1994025957A1 Voice transmission system and method for high ambient noise conditions |
11/10/1994 | WO1994025309A1 Car-mounted sound device |
11/10/1994 | WO1994024970A1 Single and multiple channel block adaptive methods and apparatus for active sound and vibration control |
11/10/1994 | DE4331376C1 Method for determining the type of encoding to selected for the encoding of at least two signals |
11/10/1994 | CA2161675A1 Multiple antenna selection and antenna cap for computer devices utilizing radio and modem cards |
11/10/1994 | CA2159513A1 Method for assuring data integrity during a repeater |
11/10/1994 | CA2137459A1 Apparatus and method for substantially eliminating noise in an audible output signal |
11/09/1994 | EP0624033A2 QAM television transmission system |
11/09/1994 | EP0624004A1 An integrated transceiver circuit packaged component |
11/09/1994 | EP0624003A2 Wireless telephone set |
11/09/1994 | EP0624002A2 Housings for transmitter/receiver units |
11/09/1994 | EP0624001A1 Radio receiving |
11/09/1994 | EP0623993A2 Four quadrant multiplier circuit and a receiver including such a circuit |
11/09/1994 | EP0623968A1 Signal distribution device |
11/09/1994 | EP0623966A1 System for suppressing selective fadings in received signals by means of an antenna |
11/09/1994 | EP0623260A1 Improved transponder for proximity identification system. |