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)
12/2003
12/31/2003CN1465141A Spectrum spreading signal demodulation method and apparatus
12/31/2003CN1465138A Compressing device and method, decompressing device and method, compressing, decompressing system, program, record medium
12/31/2003CN1464667A Method and uses for transmitting and receiving reference signal in array receiving-transmitting system
12/31/2003CN1464661A Channel estimation method of Rake receiver
12/31/2003CN1464660A WCDMA indicating channel receiver
12/31/2003CN1464650A Method for automatic selecting working channel to avoid mutual interference of wireless network arrangement
12/31/2003CN1464640A Back-up method for wireless network
12/31/2003CN1464639A Electronic responder
12/31/2003CN1464638A Multipath selection deciding method and apparatus for Rake receiver
12/31/2003CN1133348C Mobile station and corresponding method of using mobile station for receiving positioning signals
12/31/2003CN1133340C Local vibration source for RF phase lock
12/31/2003CN1133338C Radio receiver for selective calling
12/31/2003CN1133320C Tuning assembly for receiving TV signals
12/31/2003CN1133311C Casing for a cordless telephone, and assembly of a casing with a cordless telephone
12/31/2003CN1133310C 带有防护使用过程中所产生的辐射的装置的蜂窝电话 Cellular telephone radiation protective device during use with the resulting
12/31/2003CN1133307C Modulation apparatus and method using zero-crossing detection
12/31/2003CN1133306C High frequency radio signal receiving device for digit communication
12/31/2003CN1133295C Code division mutiple address radio commuication receiving method and device
12/31/2003CN1133294C Frequency control method in CDMA communication system
12/31/2003CN1133293C Signal receiving device for spread spectrum communication mode
12/31/2003CN1133291C Method and device for eliminating spectrum-spreading interference in WCDMA system
12/31/2003CN1133285C 多数字化频率上将接收信号数字化的无线电接收机及方法 Multi-frequency digital signal digitization will receive a radio receiver and method
12/31/2003CN1133284C 在跳频无线电系统中控制发射功率的方法和装置 Method and apparatus for controlling transmission power in a frequency-hopping radio system
12/31/2003CN1133283C 发射接收机 Transmitter-receiver
12/31/2003CN1133281C Transceiver
12/31/2003CN1133279C Autogain control circuit and receiver having said circuit
12/31/2003CN1133277C 通信系统中具有串行级联结构的编码器/解码器 Communication system having a serial concatenated structure of an encoder / decoder
12/31/2003CN1133233C 单馈点匹配系统的天线组件和无线电话 Antenna assembly and wireless telephone single feed point matching system
12/31/2003CN1133232C 带有可伸缩天线的移动通信装置 Retractable antenna with a mobile communication device
12/31/2003CA2490520A1 Diversity transmission modes for mimo ofdm communication systems
12/31/2003CA2485283A1 Ultra-wideband communication through a wire medium
12/31/2003CA2485255A1 Ultra-wideband communication through a wire network
12/30/2003US6671736 System and method for providing demographically targeted information
12/30/2003US6671660 Methods and apparatus for power control
12/30/2003US6671520 Remotely operated portable wireless video/audio monitoring system
12/30/2003US6671519 RF block of mobile communication base station
12/30/2003US6671504 Radio squelch techniques
12/30/2003US6671503 Wireless microphone system
12/30/2003US6671500 Frequency plan
12/30/2003US6671498 Frequency tracking and locking system of a wireless microphone
12/30/2003US6671497 Combination of a radio with an earphone and a ball-point pen
12/30/2003US6671496 Transmitter and receiver communication apparatus with transmitter switch and receiver switch
12/30/2003US6671494 Small, battery operated RF transmitter for portable audio devices for use with headphones with RF receiver
12/30/2003US6671468 Light source and method for the transmission of spectrally coded data
12/30/2003US6671463 Arrangement for transmitting, radiating and receiving high-frequency signals
12/30/2003US6671379 Ear microphone apparatus and method
12/30/2003US6671378 Detection of noise in a frequency demodulated FM audio broadcast signal
12/30/2003US6671342 Phase detectors in carrier recovery for offset QAM and VSB
12/30/2003US6671340 Method and apparatus for reduction of interference in FM in-band on-channel digital audio broadcasting receivers
12/30/2003US6671337 Carrier modulator for use in a transmitter or transceiver
12/30/2003US6671331 Carrier detecting circuit for detecting the level of a received signal and communication apparatus
12/30/2003US6671313 Time-weighted transmission channel estimation
12/30/2003US6671311 Receiver for use in a code shift keying spread spectrum communications system
12/30/2003US6671310 Method and apparatus for positioning pulses over time by applying time-hopping codes having pre-defined characteristics
12/30/2003US6671309 Interference diversity in communications networks
12/30/2003US6671308 Spread spectrum adaptive power control
12/30/2003US6671307 Spread-spectrum high data rate system and method
12/30/2003US6671270 Wireless communication system and control method therefor
12/30/2003US6671268 Channel estimation in a CDMA wireless communication system
12/30/2003US6671267 Spread spectrum communication device and spread spectrum communication method
12/30/2003US6671266 Device and method for controlling powers of orthogonal channel and quasi-orthogonal channel in CDMA communication system
12/30/2003US6671251 Method for generating complex quasi-orthogonal code and apparatus and method for spreading channel data using the quasi-orthogonal code in CDMA communication system
12/30/2003US6670919 Adaptive antenna receiving apparatus
12/30/2003US6670914 RF system for rejection of L-band jamming in a GPS receiver
12/30/2003US6670901 Dynamic range on demand receiver and method of varying same
12/30/2003US6670865 Method and apparatus for low loss high frequency transmission
12/30/2003US6670849 System for closed loop power control using a linear or a non-linear power amplifier
12/30/2003US6670801 Second harmonic tuning of an active RF device
12/30/2003CA2387697C A digital correlator
12/30/2003CA2305889C Device and method for transmitting preamble of access channel in mobile communication system
12/30/2003CA2188667C Global positioning system (gps) receiver for recovery and tracking of signals modulated with p-code
12/25/2003WO2003107531A1 Switchable gain amplifier
12/25/2003US20030237100 Information display system
12/25/2003US20030236670 Method for transmitting character message using voice recognition in portable terminal
12/25/2003US20030236581 Method for recording live performances as two or more tracks
12/25/2003US20030236100 Data transfer system
12/25/2003US20030236098 Method of optimizing the search for cells in a mobile telecommunication network
12/25/2003US20030236097 Method for transmitting multi-SMS in mobile telephone
12/25/2003US20030236088 Portable information device capable of processing input data from external device and method thereof
12/25/2003US20030236078 Wireless receiving device
12/25/2003US20030236077 Method of saving power in communication devices
12/25/2003US20030236076 MIMO telecommunication system with accelerated sphere decoding
12/25/2003US20030236075 Wireless output input device player
12/25/2003US20030236074 Scheme for realizing path selection using optimum path selection threshold in radio communication
12/25/2003US20030236073 Correction of mismatch between in-phase and quadrature signals in a radio receiver
12/25/2003US20030236065 Digital video broadcast-terrestrial (DVB-T) receiver interoperable with a GSM transmitter in a non-interfering manner
12/25/2003US20030235316 Method and apparatus for recording live performances
12/25/2003US20030235258 Method and apparatus providing an amplitude independent automatic frequency control circuit
12/25/2003US20030235241 CDMA demodulation circuit, CDMA mobile communication demodulation method used therefor, and storage medium recording program thereof
12/25/2003US20030235240 Radio receiver
12/25/2003US20030235239 Finger merge protection for rake receivers
12/25/2003US20030235238 Multipath channel tap delay estimation in a CDMA spread spectrum receiver
12/25/2003US20030235237 Spread-spectrum channel searcher and method for accelerating searching in a CDMA receiver
12/25/2003US20030235236 Ultra-wideband communication through a wired medium
12/25/2003US20030235235 Ultra-wideband communication through a wired network
12/25/2003US20030235178 Apparatus and method for enhancing channel utilization ratio in a CDMA
12/25/2003US20030235167 Multiple mode RF communication device
12/25/2003US20030235147 Diversity transmission modes for MIMO OFDM communication systems
12/25/2003US20030235112 Interferometric imaging method apparatus and system
12/25/2003US20030234737 Personal programmable universal remote control