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