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)
05/2004
05/12/2004EP1417776A1 Methods and apparatus for selective demodulation and decoding of communications signals
05/12/2004EP1417775A1 Personalizing electronic devices and smart covering
05/12/2004EP1417774A1 Mobile telephone and method for its manufacture
05/12/2004EP1417773A1 Interchangeable covering with keys for personalizing mobile electronic communication devices
05/12/2004EP1417771A1 Stereodecoder
05/12/2004EP1417750A1 Mixer circuit with image frequency rejection which is intended, in particular, for an rf receiver with zero or low intermediate frequency
05/12/2004EP1262031B1 Method and system for transmitting data, with transmission antenna diversity
05/12/2004EP1212840B1 Multi-band transceiver having multi-slot capability
05/12/2004EP1188228B1 Electronic circuit arrangement generating a transmit frequency
05/12/2004EP1173929A4 Method and device for managing power consumption of a receiver in stand-by mode
05/12/2004EP1074103A4 Method and apparatus for receiving a plurality of signals having different frequency bandwidths
05/12/2004EP1068753A4 Communication method and apparatus improvements
05/12/2004EP1050123A4 Method and apparatus for encoding rate determination in a communication system
05/12/2004EP0829154B1 A method for identifying data transmission rate, and a receiver
05/12/2004EP0815667B1 A method for frame quality detection and a receiver
05/12/2004EP0743768B1 Device and method for multiplexing signal
05/12/2004EP0716520B1 Cdma demodulation circuit and demodulating method
05/12/2004CN2615986Y Ceiling & wall hanging cell phone communication blocking equipment
05/12/2004CN2615985Y Cell phone signal isolator
05/12/2004CN2615965Y Induction radio differential receiving antenna apparatus
05/12/2004CN2615964Y Follower portable GPS ornament
05/12/2004CN2615963Y Follower portable GPS ornament
05/12/2004CN1496648A Method and apparatus for multipath signal detection, identification amd monitoring for wideband code division multiple access systems
05/12/2004CN1496636A Method and apparatus for data rate control in communication system
05/12/2004CN1496622A Method for extracting variable reference pattern
05/12/2004CN1496621A Method of non-linear code division multiple address technology and its equipment
05/12/2004CN1496620A Multi-carrier transmission/reception apparatus
05/12/2004CN1496616A Reproduction device and method
05/12/2004CN1496614A Method and apparatus for transmitting messages in wireless communication system
05/12/2004CN1496613A Method and apparatus for searching gated pilot
05/12/2004CN1496612A Simplified block linear equalizer with block space time transmit diverstiy
05/12/2004CN1496611A Arragngement for time control of mobile communication systems
05/12/2004CN1496610A Dual resonance antenna apparatus
05/12/2004CN1496595A Antenna for communication terminal apparatus
05/12/2004CN1496593A Multi-frequency antenna
05/12/2004CN1496185A Portable information processing equipment
05/12/2004CN1496182A Device and method for displaying TV video signal for mobile terminal
05/12/2004CN1496181A Device and method for displaying TV video signal and data for mobile communication terminal
05/12/2004CN1496177A Electronic equipment with two-dimensional and three-dimensional display function
05/12/2004CN1496176A Mode switchover for receiver-transmitter of mobile terminal
05/12/2004CN1496158A Equpment for detecting power ratio between service channel and pilot channel and its method
05/12/2004CN1496156A Frequency error detector and merging device for mobile communication system receiving terminal
05/12/2004CN1496146A Wireless communication system with random access request formed from several access packets
05/12/2004CN1496145A Wireless communication system of random access request consisting of multiple access group
05/12/2004CN1496144A Wireless communication system of random access request consisting of multiple access group
05/12/2004CN1496143A Self-adoptive transmitting antenna diversity device and method for mobile communication system
05/12/2004CN1496087A Portable radio communication equipment
05/12/2004CN1496086A Portable radio communication equipment
05/12/2004CN1496085A Folding portable radio set and base plate of said redio set
05/12/2004CN1496083A Radio telephone and radio communication method
05/12/2004CN1496081A Device for providing multiple mode interface between base band receiver and radio-frequency circuit
05/12/2004CN1496049A Channel coding method for communication system
05/12/2004CN1496045A Multiple four-phase sequence method for producing code-division multiple address communication system and its equipment
05/12/2004CN1496044A Method for producing scramble code in mobile communication system
05/12/2004CN1496043A Improved extraction method for CDMA system
05/12/2004CN1496040A CDMA type moving station with first and second receiving portions for leadingly-laggingly rounding offset time of a code sheet
05/12/2004CN1496039A Scramble code generator in mobile communication system
05/12/2004CN1496038A Method for producing scramble code in mobile communication system
05/12/2004CN1496037A Multicarrier transmission method and equipment
05/12/2004CN1496034A AM and digital coexisting broadcasting method and device
05/12/2004CN1496022A Transmitter and method for rate matching
05/12/2004CN1496021A High frequency unit and high frequency module and communication device using them
05/12/2004CN1496019A Doublet antenna, label and moving body recognition system using said doublet antenna
05/12/2004CN1496016A Methoed and apparatus for correcting message
05/12/2004CN1496014A 接收装置与增益控制方法 Gain control method for the receiving apparatus and
05/12/2004CN1496011A Transmitter and method for rate matching
05/12/2004CN1495438A Low nose signal generator for radio-frequency recognition system
05/12/2004CN1149880C Portable communication equipment
05/12/2004CN1149878C Method for searching menu in mobile communication terminal
05/12/2004CN1149871C Flexible CDMA coombiner
05/12/2004CN1149861C Wireless communication system and method of controlling same
05/12/2004CN1149849C Method for retransmitting video freuqency data
05/12/2004CN1149833C Input circuit of satellite tuner
05/12/2004CN1149831C Improved channel spacing for distortion reduction
05/12/2004CN1149804C Device and method for spectral shaping of transimission signal in radio transmitter
05/12/2004CN1149802C Method and apparatus for coherent communication reception in a spread-spectrum commuincation system
05/12/2004CN1149799C Radio communication receiver
05/12/2004CN1149798C Digital transmission system for transmitting an additional signal such as a surround sigal
05/12/2004CN1149764C Method of and system for voice and data radio communication providing improved interference diversity
05/12/2004CN1149757C Reception level measuring system
05/12/2004CN1149753C Receiving device and method of generating replica signal
05/12/2004CN1149751C Method for the transmission of information and apparatus employing the method
05/12/2004CN1149750C Battery operated radio receivers having power save by reducing active reception time
05/12/2004CN1149749C Acquisition method and device for carrying out said method
05/12/2004CN1149748C Harmonic suppression power amplifier output circuit and relative operation method in dual band mobile phones
05/12/2004CN1149747C Dual band radio telephone with dedicated receiving and transmitting antennas
05/12/2004CN1149746C Hand-held electronic equipment, and output system of displaying picture and method
05/12/2004CN1149745C Communication terminals
05/12/2004CN1149744C Device and method for linearizing transmitter in digital communication system
05/12/2004CN1149743C Mobile wireless communication device
05/12/2004CN1149734C Frequency-stabilized receiver/transmitter circuit arrangement
05/12/2004CN1149536C Noise suppressor
05/12/2004CN1149495C Signal processor
05/11/2004US6735606 Multi-sequence fast slewing pseudorandom noise generator
05/11/2004US6735456 Power-saving mode for portable communication devices
05/11/2004US6735455 Portable information terminal and power supply control method therefor
05/11/2004US6735454 Method and apparatus for activating a high frequency clock following a sleep mode within a mobile station operating in a slotted paging mode
05/11/2004US6735450 Method and apparatus for wireless outdoor environment communications networks
05/11/2004US6735428 Wireless communication apparatus
05/11/2004US6735426 Multiple-band wireless transceiver with quadrature conversion transmitter and receiver circuits