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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12/28/1999 | US6009319 Method and apparatus for reducing power consumption in a mobile radio communication device |
12/28/1999 | US6009318 Electronically adjustable balanced-to-unbalanced converters (balun) |
12/28/1999 | US6009316 Receiver with an antenna switch, in which sensitivity and quality of reception is improved |
12/28/1999 | US6009315 Card reader for a portable telephone and a portable telephone incorporating the card reader |
12/28/1999 | US6009313 Radio Communication device capable of setting a frequency channel with a small frequency step |
12/28/1999 | US6009312 Transmit signal generation with the aid of a receiver |
12/28/1999 | US6009304 Two-output low-noise down converter circuit |
12/28/1999 | US6009130 Multiple access digital transmitter and receiver |
12/28/1999 | US6009129 Device and method for detection and reduction of intermodulation distortion |
12/28/1999 | US6009126 Zero-IF receiver |
12/28/1999 | US6009119 Adaptive power leveling of an RF transceiver utilizing information stored in non-volatile memory |
12/28/1999 | US6009118 Parallel correlator for a spread spectrum receiver |
12/28/1999 | US6009117 Spread spectrum communication system |
12/28/1999 | US6009116 GPS TV set top box with regional restrictions |
12/28/1999 | US6009090 Code multiplexing wireless apparatus |
12/28/1999 | US6009089 Pilot interference cancellation for a coherent wireless code division multiple access receiver |
12/28/1999 | US6009074 CDMA modulation and demodulation method reducing interference and a communication system using the same |
12/28/1999 | US6008760 Cancellation system for frequency reuse in microwave communications |
12/28/1999 | US6008755 Antenna-shared distributor and transmission and receiving apparatus using same |
12/28/1999 | US6006969 Belt holder for portable phones |
12/28/1999 | CA2188729C Bias controller for decreasing bias current supplied to amplifier without sacrifice of distortion |
12/28/1999 | CA2187188C A method for reading a plurality of remote meters |
12/28/1999 | CA2161118C A method and apparatus for determining signal usability |
12/28/1999 | CA2152810C Embedded transmission line coupler for radio frequency signal amplifiers |
12/28/1999 | CA2145568C Methods of and devices for enhancing communications that use spread spectrum technology |
12/28/1999 | CA2145567C Methods of and devices for enhancing communications that use spread spectrum technology |
12/28/1999 | CA2145566C Methods of and devices for enhancing communications that use spread spectrum technology |
12/28/1999 | CA2010669C Parallel sound if with reference carrier derived from quasi-synchronous video detector |
12/28/1999 | CA2001925C Video sidepanel noise reduction with amplitude compression and predictive expansion |
12/23/1999 | WO1999066752A1 Communication method and apparatus improvements |
12/23/1999 | WO1999066743A1 Forward link power control device and methods for a mobile communication system supporting transmission diversity |
12/23/1999 | WO1999066724A2 System of apparatus and peripherals |
12/23/1999 | WO1999066721A2 Television signals receiver |
12/23/1999 | WO1999066657A1 Device and method for communicating power control signals in mobile communication system |
12/23/1999 | WO1999066654A1 Method and device for transmitting information at various carrier frequencies |
12/23/1999 | WO1999066653A1 Method and device for converting a random number sequence into carrier frequencies for mobile radio transmission |
12/23/1999 | WO1999066652A1 Method and device for transmitting information using varying carrier frequencies by means of a frequency hopping method |
12/23/1999 | WO1999066651A1 Method and device for transmitting information using varying carrier frequencies |
12/23/1999 | WO1999066650A1 Method and device for transmitting information using varying carrier frequencies by means of a frequency hopping method |
12/23/1999 | WO1999066649A1 System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
12/23/1999 | WO1999066648A1 Wireless phone-line interface |
12/23/1999 | WO1999066647A1 Mobile telephone docking station |
12/23/1999 | WO1999066646A1 Radio receiver |
12/23/1999 | WO1999066645A2 Quadriphase spreading codes in code division multiple access communications |
12/23/1999 | WO1999066644A2 Device and method for controlling transmission power of punctured frame |
12/23/1999 | WO1999066643A2 Device and method for measuring non-orthogonal noise power for cdma communication system |
12/23/1999 | WO1999066591A1 Helix antenna |
12/23/1999 | WO1999065742A1 Vehicle security system with low power transmitter |
12/23/1999 | WO1999065357A1 Adapter system |
12/23/1999 | WO1999053628A3 Data communication and radio system |
12/23/1999 | WO1999049575A3 Sign-cross product automatic frequency control loop |
12/23/1999 | WO1999048201A3 Tuning with diode detector |
12/23/1999 | WO1998032233A3 Multi-tuner receiver |
12/23/1999 | CA2335302A1 Method and apparatus for converting a random number sequence into carrier frequencies for a mobile radiotelephone transmission |
12/23/1999 | CA2335147A1 Communication method and apparatus improvements |
12/23/1999 | CA2335136A1 System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
12/23/1999 | CA2275384A1 Proportional diversity radio receiver system |
12/22/1999 | EP0966164A2 Information transmitting apparatus and method, information receiving apparatus and method, apparatus for providing a computer readable program, and broadcasting system |
12/22/1999 | EP0966139A2 Portable communication device and a method of transmitting information |
12/22/1999 | EP0966138A2 A portable communication device and a method of generating E-mail messages |
12/22/1999 | EP0966124A2 Method and system for transmission and reception of punctured convolutionally encoded data |
12/22/1999 | EP0966121A2 Receiver for receiving digital broadcast programmes transmitted on a plurality of channels, comprising a plurality of receiving circuits |
12/22/1999 | EP0966120A2 Receiver for receiving both analog and digital broadcast programmes, which are being transmitted on adjacent frequency bands |
12/22/1999 | EP0966117A1 Optical signal monitoring method and apparatus |
12/22/1999 | EP0966115A2 A tranceiver for wireless communication |
12/22/1999 | EP0966114A2 Transmission power control for use in a transmitting apparatus in a CDMA communication system |
12/22/1999 | EP0966111A2 Matched filter output analysis for interference control in a CDMA communications system |
12/22/1999 | EP0966110A2 Finger receiver unit capable of tracking a quick variation of a delay profile |
12/22/1999 | EP0966109A2 Audio coding method, audio coding apparatus, and data storage medium |
12/22/1999 | EP0966108A2 Dynamic bit allocation and apparatus and method for audio coding |
12/22/1999 | EP0966098A1 A power sharing amplifier with transform combining networks |
12/22/1999 | EP0966088A1 Radio technical apparatus including a power supply |
12/22/1999 | EP0965959A1 A method of using a portable communication device |
12/22/1999 | EP0965941A2 Electronic banking device |
12/22/1999 | EP0965940A2 Electronic banking device |
12/22/1999 | EP0965939A2 Electronic banking device |
12/22/1999 | EP0965938A2 Portable communication device |
12/22/1999 | EP0965191A1 Radio apparatus with adjustable reception quality |
12/22/1999 | EP0965188A1 Method and apparatus for generating complex four-phase sequences for a cdma communication system |
12/22/1999 | EP0965186A1 Transmission timing offset method for ds-cdma mobile telephone systems |
12/22/1999 | EP0965183A1 A circuit and method for controlling the power used by a portable radiotelephone |
12/22/1999 | EP0965177A2 A multi-user communication system architecture with distributed transmitters |
12/22/1999 | EP0965167A1 Receiver if system with active filters |
12/22/1999 | EP0965085A2 Personal computer and personal computer add-on card |
12/22/1999 | EP0870298A4 Noise cancellation and noise reduction apparatus |
12/22/1999 | EP0788637B1 Contactless energy and data transmission system |
12/22/1999 | EP0583241B1 Spread spectrum correlator |
12/22/1999 | EP0500775B1 Soft handoff in a cdma cellular telephone system |
12/22/1999 | CN2355500Y Wireless headweared device for speech learning |
12/22/1999 | CN1239631A Carrier sensor |
12/22/1999 | CN1239624A System controlled asymmetrical automatic repeat request protocol method |
12/22/1999 | CN1239622A AFC circuit, carrier reproducing circuit, and receiver |
12/22/1999 | CN1239615A Method and appts. for generating complex four-phase sequences for CDMA communication system |
12/22/1999 | CN1239612A Determination of frequency offsets in communication systems |
12/22/1999 | CN1239610A Method and device for increasing anti-interference of receiver |
12/22/1999 | CN1239607A Radio receiver, radio receiving method, and audio transmitter |
12/22/1999 | CN1239606A Arrangement in communication system |
12/22/1999 | CN1239389A System and method for calibrating single sideband receiver reject image product |
12/22/1999 | CN1239387A Method of allocating optimum walsh codes to reverse link |
12/22/1999 | CN1239384A Radio selective call receiver |