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)
08/2000
08/10/2000WO2000046928A1 System and method for measuring rf radiated emissions in the presence of strong ambient signals
08/10/2000WO2000046926A2 Direct conversion delta-sigma receiver
08/10/2000WO2000046918A1 Method and circuit for controlling the compensation of offset voltages of a radio receiver circuit which is integrated in a circuit module
08/10/2000WO2000046916A1 A closed loop calibration for an amplitude reconstruction amplifier
08/10/2000WO2000046744A1 Device for attaching/detaching sim card
08/10/2000WO2000031870A3 Methods and systems for frequency generation for wireless devices
08/10/2000WO2000027038A3 Radio frequency transmitters
08/10/2000WO2000022837A3 A variable sleep mode for mobile stations in a mobile communications network
08/10/2000WO2000019730A3 Device and method for generating quasi-orthogonal code and spreading channel signals in mobile communication system
08/10/2000WO2000019625B1 Mobile telephone having a folding antenna
08/10/2000WO2000013432A3 Device and method for transmitting subframe in mobile communication system
08/10/2000DE19948230A1 Radio receiver for two different navigation satellite signals has separate parallel input circuits so that incoming signals may be selected by input circuits using high-frequency input chips
08/10/2000DE19904384A1 Audio device for wearing on the head, has base body with battery for wearing on head, radio device and at least one loudspeaker arranged close to ear when device is being worn on head
08/10/2000CA2362726A1 Communications accessory with improved vehicle ignition sense
08/10/2000CA2362057A1 Method and apparatus for time tracking
08/09/2000EP1026908A2 Dual mode mobile phone operating as a two-way radio
08/09/2000EP1026885A1 TV-signal receiving tuner with reduced extraneous emission
08/09/2000EP1026868A1 Communication Station
08/09/2000EP1026845A2 System for recording broadcast transmissions for playback at a later time
08/09/2000EP1026844A2 Receiver for Digital Audio Broadcast DAB
08/09/2000EP1026843A1 Method of estimating the signal to noise ratio of a digital signal
08/09/2000EP1026834A2 Mobile communication system having mobile stations and a base station
08/09/2000EP1026832A1 Information communication device
08/09/2000EP1026831A2 Method for operating a combination of entertainment electronics apparatus
08/09/2000EP1026830A1 Antenna circuit
08/09/2000EP1026829A2 Method and circuit for controlling the power supply in a communicaton device
08/09/2000EP1026821A2 Radio frequency modulator having isolation switches and signal path bypassing amplifier and modulator
08/09/2000EP1026627A1 Contactless data communication system and method
08/09/2000EP1025952A1 Working machine and its communication method
08/09/2000EP1025742A1 Method for safe transmission of a telecommunication system cells
08/09/2000EP1025740A2 Method for searching cells in mobile communication system
08/09/2000EP1025697A1 Channel scanning and channel change latency reduction in an atsc television receiver
08/09/2000EP1025664A1 Radio receiver with a hard disk drive, a read/write memory and a display device
08/09/2000EP1025663A1 A system and method for mitigating intermittent interruptions in an audio radio broadcast system
08/09/2000EP1025655A2 Method and receiver for transmitting data in a communication system
08/09/2000EP1025651A1 Method and Apparatus for the generation of frequency hopping sequences
08/09/2000EP1025650A1 Parallel correlator architecture for synchronizing direct sequence spread-spectrum signals
08/09/2000EP1025646A2 Methods and devices for encoding audio signals and methods and devices for decoding a bit stream
08/09/2000EP1025613A1 Multiple band, multiple branch antenna for mobile phone
08/09/2000EP1025612A1 Multiple band telescope type antenna for mobile phone
08/09/2000EP1025544A1 An electronic tag including rf modem for monitoring motor vehicle performance
08/09/2000EP0830076B1 Clothes hanger
08/09/2000EP0804837B1 Process for transmitting spoken information
08/09/2000EP0689740A4 Radio transceiver circuit and method
08/09/2000CN2391390Y Shield structural unit for mobile telephone
08/09/2000CN2391381Y Combined quadrupole double outputting C. KU compound high-frequency tuner
08/09/2000CN1262829A Transmitting/receiving device and transmitting/receiving method
08/09/2000CN1262828A Wake-up circuit for electronic apparatus
08/09/2000CN1262825A Channel communication device and method for CDMA communication system
08/09/2000CN1262824A Device and method for generating PN sequence in CDMA communication system
08/09/2000CN1262820A Synchronization of forward link base station power levels during handoff between base station sectors in mobile radio communication system
08/09/2000CN1262817A Radio receiver and method of reception
08/09/2000CN1262793A Communication apparatus
08/09/2000CN1262754A Computer memory organization
08/09/2000CN1262581A Frequency changer with several output terminals for receiving signal from satellite
08/09/2000CN1262560A Receiver and method for receiving spread frequency signal by estimating transmitting symbol rate
08/09/2000CN1262559A Sound controlled wireless talkback set without language difference
08/08/2000US6101475 Method for the cascaded coding and decoding of audio data
08/08/2000US6101377 Method and apparatus for improving multi-channel radio communication
08/08/2000US6101374 Radio communication apparatus having two antennas controlled by standing wave ratio
08/08/2000US6101373 Amplifier system
08/08/2000US6101372 Portable telephone set
08/08/2000US6101257 Audio signal processor
08/08/2000US6101228 Receiver of wideband digital signal in the presence of a narrow band interfering signal
08/08/2000US6101226 Radio receiving apparatus for receiving communication signals of different bandwidths
08/08/2000US6101225 Method and apparatus for performing a modulation
08/08/2000US6101214 Power line communications spread spectrum symbol timing and random phasing
08/08/2000US6101213 Method system and computer program product for spread spectrum communication using circular waveform shift-keying
08/08/2000US6101173 Adaptive reacquisition time in a slotted paging environment
08/08/2000US6100847 Antenna with a transmit frequency band pass filter coupled to a radiative element
08/08/2000US6100827 Modulation systems and methods that compensate for DC offset introduced by the digital-to-analog converter and/or the low pass filter thereof
08/08/2000US6100814 Remote control wake up detector system
08/08/2000US6100812 Communication control method, communication system and electronic equipment used for it
08/08/2000US6100790 Modulated backscatter wireless communication system having an extended range
08/08/2000US6100776 High-frequency composite transmission section with switch, LC filter, and notch filter
08/08/2000US6100765 Digital clock recovery loop
08/08/2000US6100764 Remote control preamp circuit
08/08/2000US6100761 Highly linear variable-gain low noise amplifier
08/08/2000US6099337 Automatic clasping connector for SIM card (1)
08/08/2000CA2194022C Wireless communications systems with self threshold setting
08/08/2000CA2184893C Signal protection and monitoring system
08/08/2000CA2176492C Multibroadcast receiver
08/08/2000CA2166239C Speech presence detector and method therefor
08/03/2000WO2000045568A1 A portable communication device and a method for determining the power consumption thereof
08/03/2000WO2000045559A1 Multicarrier transmission system with low power sleep mode and rapid-on-capability
08/03/2000WO2000045538A1 A method and an apparatus for clipping signals in a cdma system
08/03/2000WO2000045530A1 Adaptive interference-free spread-spectrum system employing binary code sequence sets with zero correlation zone properties
08/03/2000WO2000045528A1 Method and apparatus for controlling transmission power in a potentially transmission gated or energy capped communication system
08/03/2000WO2000045526A1 Speaker-microphone having automatic notification feature
08/03/2000WO2000045523A2 A homodyne radio receiver
08/03/2000WO2000045521A1 Processing method for a broadband digital radio receiver signal and corresponding radio reception architecture
08/03/2000WO2000045520A1 Apparatus which is electronically switched on and off
08/03/2000WO2000045518A2 Method and apparatus for reducing peak-to-average ratio in a cdma communication system
08/03/2000WO2000045461A1 Portable telephone with directional transmission antenna
08/03/2000WO2000045399A1 Multi-track integrated spiral inductor
08/03/2000WO2000045330A1 Contactless data transmission system and method for contactlessly transmitting data
08/03/2000WO2000030265A3 Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver
08/03/2000WO2000019732A3 Device and method for generating spreading code and spreading channel signals using spreading code in cdma communication system
08/03/2000WO2000014975A3 Device and method for generating quaternary complex quasi-orthogonal code and spreading transmission signal using quasi-orthogonal code in cdma communication system
08/03/2000WO2000013324A3 Pn sequence identifying device in cdma communication system