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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03/23/1999 | CA2153682C Method and apparatus for multi-phase component downconversion |
03/23/1999 | CA2123814C Audio/visual apparatus and remote-controller for the control thereof |
03/23/1999 | CA2116733C Transmission apparatus for round-trip satellite |
03/23/1999 | CA2073700C Source voltage control switching circuit |
03/20/1999 | CA2247742A1 Cdma radio communication apparatus |
03/20/1999 | CA2247725A1 Base station searching device |
03/19/1999 | WO1999016035A1 Embedded code hopping system with bypass mode |
03/19/1999 | CA2249008A1 High throughput embedded cope hopping system with bypass mode |
03/18/1999 | WO1999013660A1 Carrier sensor |
03/18/1999 | WO1999013626A1 Communication terminal, especially mobile telephone |
03/18/1999 | WO1999013625A1 Auxiliary device connected to wireless portable telephone |
03/18/1999 | WO1999013621A2 Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus |
03/18/1999 | WO1999013605A1 Method and apparatus for providing orthogonal spot beams, sectors, and picocells |
03/18/1999 | WO1999013599A1 Method for generating quasi-orthogonal code and spreader using the same in mobile communication system |
03/18/1999 | WO1999013595A1 Systems and methods for sharing reference frequency signals within a wireless mobile terminal between a wireless transceiver and a global positioning system receiver |
03/18/1999 | WO1999013594A1 Apparatus and method for radio communication |
03/18/1999 | WO1999013593A1 System and method for monitoring and recording radio listener data |
03/18/1999 | WO1999013592A1 Totem pole mixer having grounded serially connected stacked fet pair |
03/18/1999 | WO1999013591A1 Receiver in an antenna base |
03/18/1999 | WO1999013590A1 Rf transmitter |
03/18/1999 | WO1999013589A1 Audio processor |
03/18/1999 | WO1999013527A1 Rf coupler for wireless telephone cradle |
03/18/1999 | WO1998059448A3 Prioritized pilot searching in a code-division multiple access communication system |
03/18/1999 | DE19841236A1 High frequency device |
03/17/1999 | EP0902564A1 Method for digital signals, specially radio data signals, evaluation |
03/17/1999 | EP0902563A1 Detection method for the transmitter identification information signal in the null symbol of a DAB stream |
03/17/1999 | EP0902549A2 Device and method for bi-orthogonal code hopping multiple access communication |
03/17/1999 | EP0902548A2 Broadcast receiver |
03/17/1999 | EP0902547A2 Improved power supply system for a packet-switched radio transmitter |
03/17/1999 | EP0902546A1 Communication protocol between a transmitter-receiver unit and transponders |
03/17/1999 | EP0902495A2 Signal distributing/synthesizing apparatus |
03/17/1999 | EP0901725A1 An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio transmitter |
03/17/1999 | EP0901724A1 Method for processing of data with a radio receiver |
03/17/1999 | EP0901722A1 Subscriber unit for cdma wireless communication system |
03/17/1999 | EP0901721A1 Device and method for radio transmitters |
03/17/1999 | EP0901718A1 Method and apparatus for splicing compressed information streams |
03/17/1999 | EP0901714A1 An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio receiver |
03/17/1999 | EP0830750B1 Apparatus and method of transmitting and receiving information in a wireless telecommunications system |
03/17/1999 | EP0774182A4 Method and apparatus for a radio system operating on shared communication channels |
03/17/1999 | EP0679312A4 An information transmission system for increasing the effective rate of transfer of information. |
03/17/1999 | EP0532552B1 Time based signal detector |
03/17/1999 | CN2311117Y 电磁波屏蔽器 Electromagnetic shielding |
03/17/1999 | CN1211358A Method for unlicensed band port to autonomously determine interference threshold and power level |
03/17/1999 | CN1211356A Multichannel Receiver using analysis by synthesis |
03/17/1999 | CN1211355A Linear transmitter using predistortion |
03/17/1999 | CN1211354A Temperature compensation circuit for a crystal oscillator and method of providing same |
03/17/1999 | CN1211324A GPS receiver and method for processing GPS signals |
03/17/1999 | CN1211141A TV receiver having analog/digital dual tuner |
03/17/1999 | CN1211120A Receiving apparatus, receiving method, and terminal unit for use with radio system |
03/17/1999 | CN1211111A Spread spectrum receiver and transmission power control method |
03/17/1999 | CN1211110A Lightly touching, digital gating, electromic tuning, and presetting station receiver |
03/17/1999 | CN1210669A Automatic bait feeding system |
03/17/1999 | CN1042587C Communication method/apparatus/system capable of performing FDMA transmission |
03/17/1999 | CN1042586C Transducer with inner conductive cover for EMI shielding |
03/17/1999 | CN1042585C Apparatus for automatically controlling gain, communication apparatus, and method for automatically controlling gain |
03/17/1999 | CN1042584C Noise suppressing apparatus capable of preventing deterioration in high frequency signal characteristic after noise suppression |
03/17/1999 | CN1042583C Pager with message display |
03/16/1999 | US5884214 GPS receiver and method for processing GPS signals |
03/16/1999 | US5884200 Radio communication apparatus having a plurality of identification codes |
03/16/1999 | US5884199 Portable wireless receiver |
03/16/1999 | US5884198 Body conformal portable radio and method of constructing the same |
03/16/1999 | US5884197 Wireless portable transceiver arranged for providing isolation between radio frequency and audio signals |
03/16/1999 | US5884196 Method and apparatus of preserving power of a remote unit in a dispatch system |
03/16/1999 | US5884191 Interface system for providing hands-free operation of a radiotelephone and accessories in a mobile office environment |
03/16/1999 | US5884189 Multiple-modes adaptable radiotelephone |
03/16/1999 | US5884186 Portable radio apparatus equipped with function to display received message information and information process system used for portable radio apparatus |
03/16/1999 | US5884168 Multiple cellular systems with limited sim card information |
03/16/1999 | US5884156 Portable communication device |
03/16/1999 | US5884155 Pager with coin holder and/or storage compartment |
03/16/1999 | US5884153 Delayed automatic gain control circuit |
03/16/1999 | US5884151 Switching device for short time mute switching of reproduction of NF-signal in radio receiver |
03/16/1999 | US5884149 Mobile station having dual band RF detector and gain control |
03/16/1999 | US5884146 Apparatus and method for establishing a radio frequency communications link between a controller and a remote controllable system |
03/16/1999 | US5884048 Digital audio signal processor having small input buffer |
03/16/1999 | US5883927 Digital wireless telecommunication device for reduced interference with hearing aids |
03/16/1999 | US5883925 Pulse code modulation compression mechanism |
03/16/1999 | US5883922 FSK communication device for digital information |
03/16/1999 | US5883920 Spread spectrum receiving apparatus with battery saving function |
03/16/1999 | US5883899 Code-rate increased compressed mode DS-CDMA systems and methods |
03/16/1999 | US5883786 SIM card containment assembly for an electronic apparatus |
03/16/1999 | US5883553 Filter unit adapted for miniaturization and for selecting a particular signal where a plurality of signals different in bandwidth coexist |
03/16/1999 | US5883548 Demodulation system and method for recovering a signal of interest from an undersampled, modulated carrier |
03/16/1999 | CA2125718C A modem with received signals and transmitted signals comprising signal sets |
03/16/1999 | CA2116127C Method and apparatus for canceling spread-spectrum noise |
03/11/1999 | WO1999012319A1 A local communication system, method of operation and stations for use therein |
03/11/1999 | WO1999012317A1 Digital transmission using subband coding |
03/11/1999 | WO1999012313A2 A local communication system and apparatus for use therein |
03/11/1999 | WO1999012295A1 Cell searching in a cdma communications system |
03/11/1999 | WO1999012275A1 Adaptive power control of a pilot sub-channel |
03/11/1999 | WO1999012273A1 Synchronization to a base station and code acquisition within a spread spectrum communications system |
03/11/1999 | WO1999012245A2 Portable electronic device and method |
03/11/1999 | WO1998058451A3 Digital communication device |
03/11/1999 | WO1998051108A3 Hand-held cellular telephone with power management features |
03/11/1999 | WO1998048589A3 Holding a connection in an isdn network with a dect intermediate system |
03/11/1999 | WO1998045961A3 Methods and apparatus for burst-mode cdma dsss communications receiving systems |
03/11/1999 | WO1998044655A3 Self-synchronizing equalization techniques and systems |
03/11/1999 | WO1998037638A3 Highly bandwidth-efficient communications |
03/11/1999 | EP0917768A3 Correlator method and apparatus |
03/11/1999 | DE19818020A1 Signal compression circuit |
03/11/1999 | DE19739395A1 Empfänger in einem Antennenfuß Receiver antenna in a |