Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
10/1999
10/26/1999US5974301 Frequency cancelling system and method
10/26/1999US5974137 AGC amplifier for two-wire line conditioner
10/26/1999US5974101 Spread spectrum modulation communication apparatus for narrow band interference elimination
10/26/1999US5974099 Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus
10/26/1999US5974098 Received signal detector for digital demodulator
10/26/1999US5974095 Digital satellite broadcasting receiver
10/26/1999US5974087 Waveform quality measuring method and apparatus
10/26/1999US5974085 Wireless modem and method therefor for routing data to an application or to storage
10/26/1999US5974084 Method of operating a modem in the presence of interrupted dial tone
10/26/1999US5974083 Spread spectrum signal reception apparatus
10/26/1999US5974082 Spread spectrum communications system
10/26/1999US5974081 Spread spectrum band transceiver
10/26/1999US5974080 Hierarchical-serial acquisition method for CDMA systems using pilot PN codes
10/26/1999US5974079 Method and apparatus for encoding rate determination in a communication system
10/26/1999US5974078 Modulated spread spectrum in RF identification systems method
10/26/1999US5974057 Method and apparatus for correcting a measured round-trip delay time in a wireless communication system
10/26/1999US5974041 Efficient parallel-stage power amplifier
10/26/1999US5974040 Receiver and transmitter-receiver having variable attenuator to avoid saturation by a strong signal
10/26/1999US5974039 CDMA communications and geolocation system and method
10/26/1999US5974038 Receiver for code division multiple access communication system
10/26/1999US5973756 IR Transmitter with integral magnetic-stripe ATM type credit card reader & method therefor
10/26/1999US5973640 Method and device for managing status/alarm message of GPS receiver and broadcasting system time
10/26/1999US5973576 Mixer for mixing carrier signals and data signals
10/26/1999US5973557 High efficiency linear power amplifier of plural frequency bands and high efficiency power amplifier
10/26/1999US5973412 Vehicle security system with low power transmitter
10/26/1999US5972156 Method of making a radio frequency identification tag
10/26/1999US5971242 Vehicle accessory holder
10/26/1999CA2157262C Surge arrestor for rf devices
10/26/1999CA2102500C Programmable noise bandwidth reduction by means of digital averaging
10/21/1999WO1999053710A1 Device and method for transmitting common channel message in cdma communication system
10/21/1999WO1999053680A1 Wired/wireless modem components
10/21/1999WO1999053632A1 Apparatus and method for transmitting and receiving a signal
10/21/1999WO1999053628A2 Data communication and radio system
10/21/1999WO1999053625A1 Amplitude limitation in a cdma system
10/21/1999WO1999053621A1 Method and system for interfacing a wireless communication device with an accessory
10/21/1999WO1999053595A1 Integrated power management module
10/21/1999WO1999046887A3 Wireless local area network spread spectrum transceiver with multipath interference mitigation
10/21/1999WO1999045666A3 Method for reducing interference, and synthesizer arrangement
10/21/1999WO1999039449A9 Amplifier module with two power amplifiers for dual band cellular phones
10/21/1999DE19916920A1 Communications system, such as two-way communications system, enables effective processing of spread spectrum signals
10/21/1999DE19915584A1 Co-channel interference reduction method e.g. for cellular mobile radio system
10/21/1999DE19847509A1 Data acquisition system for real time processing
10/21/1999DE19816848A1 Arrangement to enable hearing aid wearers to make telephone calls with portable telephones/mobile telephones and radio equipment without involving ingress into the telephone or hearing aid
10/21/1999DE19816490A1 Pre-selection filter layout for high frequency receivers
10/21/1999CA2293792A1 Apparatus and method for transmitting and receiving a signal
10/20/1999EP0951151A2 Pilot signal transmission technique and digital communication system using same
10/20/1999EP0951149A2 Configurable communication apparatus that permits use of unused multiplexer channels when operating in high power mode
10/20/1999EP0951148A2 Synchronization apparatus and method for direct sequence spread spectrum communication
10/20/1999EP0951147A1 Receiver and a method for tuning one of the radio frequency stages in a receiver
10/20/1999EP0951143A2 Technique for effectively rendering power amplification and control in wireless communications
10/20/1999EP0951090A2 Antenna apparatus
10/20/1999EP0950571A2 Mounting device for vehicles
10/20/1999EP0950566A2 Electronic device with display and receptacle for a removable information storage medium
10/20/1999EP0950296A1 A method and an arrangement for despreading a coded sequence in a communication system
10/20/1999EP0950289A1 Forward link transmission mode for cdma cellular communications system using steerable and distributed antennas
10/20/1999EP0950288A1 Wireless communication system including a plurality of selectable antennas and wireless communications methods
10/20/1999EP0950269A1 Dual band antenna
10/20/1999EP0950195A1 Uniform discrete fourier transform filter parameter encoder
10/20/1999EP0950194A2 An improved gps receiver utilizing a communication link
10/20/1999EP0813771A4 A subscriber unit for use in a multiple access communication system
10/20/1999EP0803097A4 Automatic cellular phone battery charging by mobile personal computer
10/20/1999CN2344933Y Fixed holder for mobile telephone
10/20/1999CN2344932Y Handset battery with lighting lamp
10/20/1999CN1232599A Multi-mode mobile station supporting multiple cellular telephone system operation with limited subscriber identity module card
10/20/1999CN1232587A Method and apparatus for optimizing medium access control protocol
10/20/1999CN1232584A Method and apparatus for forming calibration signal
10/20/1999CN1232354A Radio receiver and signal amplifying method in radio receiver
10/20/1999CN1232353A Multi-carrier CDMA transmission system with frequency and transmit diversity
10/20/1999CN1232352A Radio type selective call receiver and method of receiving selective calling
10/20/1999CN1232338A Apparatus for synthesizing speech sounds of short message in hands free kit assisting mobile phone
10/20/1999CN1232334A Channel tracking in mobile receiver
10/20/1999CN1232330A Parallel hopping hybrid direct sequence/slow frequency hopping CDMA system
10/20/1999CN1232329A Transmission/reception apparatus and transmission/ reception method
10/20/1999CN1232326A Synchronization processing apparatus and synchronization processing method
10/20/1999CN1232325A Portable radio device
10/20/1999CN1232324A Moveable location system and method
10/20/1999CN1232317A Matched filter and signal reception apparatus
10/20/1999CN1232239A Remote controller having search device
10/20/1999CN1231973A Phone cradle for vehicle
10/20/1999CN1045863C 无线寻呼接收机 Wireless paging receiver
10/20/1999CN1045853C Speech-controlled mobile transceiver
10/20/1999CN1045852C Digital signal processor and digital signal processing method
10/19/1999US5970486 Keyword creation method and its apparatus
10/19/1999US5970402 Radio card
10/19/1999US5970400 Adjusting the timing and synchronization of a radio's oscillator with a signal from an SATPS satellite
10/19/1999US5970396 Diversity receiver
10/19/1999US5970390 Transmitter and automobile audio apparatus using the same
10/19/1999US5970085 Method and receiver for coded satellite digital audio broadcasting
10/19/1999US5970084 CDMA mobile communication receiving apparatus
10/19/1999US5970060 Method and system for radio transmission of digital signals
10/19/1999US5970055 Radio communication system adapting time division duplexing/frequency hopping
10/19/1999US5970046 Apparatus for demodulating AM data multiplexed modulated wave signal
10/19/1999US5969943 Device having an efficient heat radiation casing
10/19/1999US5969774 Programmable remote control transmitter
10/19/1999US5969751 Method and apparatus for canceling co-channel interference
10/19/1999US5969683 Radiotelephones with antenna matching switching system configurations
10/19/1999US5969682 Antenna apparatus and portable radio apparatus
10/19/1999US5969681 Extended bandwidth dual-band patch antenna systems and associated methods of broadband operation
10/19/1999US5969663 Time domain radio transmission system
10/19/1999US5969654 Multi-channel recording system for a general purpose computer
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