| 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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| 01/20/1993 | EP0523779A1 Direct conversion receiver |
| 01/20/1993 | EP0523778A1 Direct conversion receiver |
| 01/20/1993 | EP0523718A2 Output level control circuit for use in RF transmitter |
| 01/20/1993 | EP0523362A2 Broadcast-initiated bipartite frame multi-access protocoll |
| 01/20/1993 | EP0523272A1 Circuit arrangement for obtaining a constant field strength of an HF signal radiated by a transmitting device with exchangeable antenna |
| 01/20/1993 | EP0523271A1 Circuit arrangement for antenna coupling |
| 01/20/1993 | CA2073934A1 Direct sequence spread spectrum communication system with self-synchronizing correlator and method |
| 01/19/1993 | WO1993002531A1 Prioritized data transfer method and apparatus for a radiotelephone peripheral |
| 01/19/1993 | US5181227 Receiver having a signal detector and bit synchronizer |
| 01/19/1993 | US5181226 Threshold level generator |
| 01/19/1993 | US5181225 Receiver for a dsss signal |
| 01/19/1993 | US5179747 Pillow radio apparatus |
| 01/19/1993 | CA1312945C Television on channel selecting apparatus |
| 01/19/1993 | CA1312940C Electronic device housing with temperature management functions |
| 01/19/1993 | CA1312922C Radio receiver receiving voice and data signals |
| 01/19/1993 | CA1312921C Paging receiver having a display |
| 01/19/1993 | CA1312920C Fast settling tone/data processing circuit |
| 01/17/1993 | WO1993002506A1 Programmable noise bandwidth reduction by means of digital averaging |
| 01/14/1993 | DE4122004A1 Time-variable adjusting magnitude transmission e.g. for car radio - transmitting magnitude as amplitude change of stereo pilot tone and correlating on reception |
| 01/13/1993 | EP0522993A2 Message recording and broadcasting system |
| 01/13/1993 | EP0522762A2 Mobile phone |
| 01/13/1993 | EP0522759A2 Circuit for reliable switching over of signal processing circuits |
| 01/13/1993 | EP0522720A1 Clock frequency adjustment of an electrical circuit |
| 01/13/1993 | EP0522631A2 Interspersed traffic and control information transmission system |
| 01/13/1993 | EP0522578A2 Noise removing circuit |
| 01/13/1993 | EP0522538A2 Portable radio communication apparatus unnecessitating shielding case |
| 01/13/1993 | EP0522325A2 Control unit for a VHF-receiver with several antennae |
| 01/13/1993 | EP0522310A2 Control apparatus for an FM receiver having plural antennas |
| 01/13/1993 | EP0463104A4 Dsp based radio with diminished power requirements |
| 01/13/1993 | EP0265476B1 Device for the remote control of a videorecorder or a videoreceiver |
| 01/13/1993 | CN1068004A Device for modulator |
| 01/13/1993 | CN1068000A Dynamic balance switch, amplitude modulation, floating carrier brodcasting tv transmitter |
| 01/12/1993 | US5179730 Selectivity system for a direct conversion receiver |
| 01/12/1993 | US5179728 Spurious product and local oscillator radiation suppression system for use in superheterodyne radio receivers |
| 01/12/1993 | US5179726 Automatic tuning method and apparatus of double conversion tuner |
| 01/12/1993 | US5179725 Voltage controlled oscillator with correction of tuning curve non-linearities |
| 01/12/1993 | US5179724 Conserving power in hand held mobile telephones during a receiving mode of operation |
| 01/12/1993 | US5179719 Programmable signal reception system |
| 01/12/1993 | US5179623 Method for transmitting an audio signal with an improved signal to noise ratio |
| 01/12/1993 | US5179593 Fm stereo receiving device |
| 01/12/1993 | US5179574 Spread PN code signal receiver |
| 01/12/1993 | US5179572 Spread spectrum conference calling system and method |
| 01/12/1993 | US5179570 Direct sequence spread spectrum communication system with self-synchronizing correlator and method |
| 01/12/1993 | US5179569 Spread spectrum radio communication system |
| 01/12/1993 | US5179361 Compandor system with stable and widely adjustable unity gain level |
| 01/12/1993 | US5179360 Transmitting/receiving apparatus switchable between digital and analog modulation modes |
| 01/12/1993 | US5179353 Power control circuit used for both analog/digital dual mode |
| 01/12/1993 | CA1312656C Wireless communications systems |
| 01/12/1993 | CA1312655C Wireless local area network |
| 01/10/1993 | CA2073206A1 Information transmission system |
| 01/07/1993 | WO1993000752A1 Process for the joint transmission of digital audio and control data on a shared bus line, bus system for implementing the process and interface for use with the process |
| 01/07/1993 | WO1993000748A1 Traffic information broadcast system |
| 01/07/1993 | WO1993000738A1 Arrangement for a modulator |
| 01/07/1993 | EP0521732A2 Antenna system for receiving broadcast or communication signals from satellite |
| 01/07/1993 | EP0521712A2 Frequency selection method for a radio receiver |
| 01/07/1993 | EP0521403A1 Radio receiver capable of suppressing a frequency drift in an intermediate frequency |
| 01/07/1993 | EP0521238A1 Frequency synthesizer circuit for a transceiver |
| 01/07/1993 | DE4220654A1 Mobile telephone aerial formed on glass surface - consists of square element and adjacent rectangular strip of conductive material placed in or on car window |
| 01/07/1993 | DE4121027A1 Anordnung fuer einen video- und tonmodulator Arrangement for a video and tonmodulator |
| 01/05/1993 | US5177799 Speech encoder |
| 01/05/1993 | US5177798 Sound reproducer for high definition television |
| 01/05/1993 | US5177767 Spread-spectrum communication system |
| 01/05/1993 | US5177766 Digital clock timing generation in a spread-spectrum digital communication system |
| 01/05/1993 | US5177765 Direct-sequence spread-spectrum digital signal acquisition and tracking system and method therefor |
| 01/05/1993 | US5177741 Subscriber unit for wireless digital telephone system |
| 01/05/1993 | US5177600 Noise reduction circuit |
| 01/05/1993 | US5177492 Rod antenna mounting mechanism of radio terminal equipment |
| 01/05/1993 | US5175926 Method of manufacturing an automotive sound system |
| 01/05/1993 | US5175903 Drive connection for the arm of a windscreen wiper |
| 01/05/1993 | CA1312357C Method and device for detecting voice signals |
| 01/05/1993 | CA1312356C Receiver capable of improving signal-to-noise ratio in reproducing digital signal |
| 12/30/1992 | EP0520803A2 Radio pager with variable gain setting controlled according to presence and absence of sync codes |
| 12/30/1992 | EP0520462A1 Speech coders based on analysis-by-synthesis techniques |
| 12/30/1992 | EP0520451A2 Radio receiver with station memory function |
| 12/30/1992 | EP0520203A1 Channel selection circuit |
| 12/30/1992 | EP0520050A1 Enabling code for radiotransmission of data. |
| 12/30/1992 | CN2126482U Wire speakerphone |
| 12/30/1992 | CN1067541A Data bus interface apparatus |
| 12/29/1992 | WO1993000747A1 Automatic frequency control by an adaptive filter |
| 12/29/1992 | US5175885 CRT update wideband double balanced mixer |
| 12/29/1992 | US5175883 Receiving apparatus |
| 12/29/1992 | US5175874 Radiotelephone message processing for low power operation |
| 12/29/1992 | US5175873 Water resistant selective call receiver |
| 12/29/1992 | US5175872 Combined trunked/cellular communication unit |
| 12/29/1992 | US5175871 Power amplifier for a cellular telephone |
| 12/29/1992 | US5175870 Power economising in multiple user radio systems |
| 12/29/1992 | US5175763 Two-wire/four-wire converter |
| 12/29/1992 | US5175729 Radio with fast lock phase-locked loop |
| 12/29/1992 | US5175710 Method of analyzing signals |
| 12/29/1992 | US5175538 Remote control |
| 12/29/1992 | US5175441 Remotely controlled power supply apparatus |
| 12/29/1992 | US5174483 Carrying device |
| 12/24/1992 | DE4219652A1 Halter Holder |
| 12/24/1992 | DE4120029A1 Schaltung zur verringerung von intermodulation beim einsatz von halbleiterlasern fuer die optische nachrichtenuebertragungstechnik Circuit designed to reduce intermodulation in the use of semiconductor lasers for optical nachrichtenuebertragungstechnik |
| 12/23/1992 | WO1992022964A1 Circuit for reducing intermodulation on the use of semiconductor lasers for optical information transmission |
| 12/23/1992 | WO1992022960A1 A method and an apparatus for determining phase and frequency deviation |
| 12/23/1992 | WO1992022938A1 Dual polarisation waveguide probe system |
| 12/23/1992 | WO1992022891A1 Variable rate vocoder |
| 12/23/1992 | EP0519733A2 Data transmitter and receiver and the data control method thereof |
| 12/23/1992 | EP0519562A2 Phase-locked loop receiver |