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)
11/1998
11/05/1998WO1998049771A1 Battery life extending technique for mobile wireless applications
11/05/1998WO1998049768A1 Method and circuit for noise reduction
11/05/1998WO1998036501A3 Paging transmitter
11/05/1998WO1998032238A3 Transponder communication device
11/05/1998CA2287970A1 Method and apparatus for conserving energy in a radio communication system
11/05/1998CA2285236A1 Battery life extending technique for mobile wireless applications
11/04/1998EP0876004A2 Transmitter gain controller
11/04/1998EP0876002A2 Pilot interference cancellation for a coherent wireless code division multiple access receiver
11/04/1998EP0876000A2 Oversampling CDMA receiver
11/04/1998EP0875999A2 Encoding method and apparatus, decoding method and apparatus and recording medium
11/04/1998EP0875989A2 Automatic gain control circuit
11/04/1998EP0875987A1 Frequency synthesiser
11/04/1998EP0875099A1 Method for assigning band port channels in an unlicensed personal communications system
11/04/1998EP0875098A1 Method and circuit arrangement for processing a received signal
11/04/1998EP0875097A1 Method and arrangement of signal tracking and a rake-receiver utilizing said arrangement
11/04/1998EP0875096A1 Method and circuit arrangement for reducing offset voltage of a signal
11/04/1998EP0875095A1 Channel training of multi-channel receiver system
11/04/1998EP0875094A1 Method and apparatus for selecting from multiple mixers
11/04/1998CN2296602Y Radio intercommunication remote controller for tower crane
11/04/1998CN2296601Y Wireless languige teaching machine
11/04/1998CN1198289A Apparatus for upgrading of one-way message transmission system
11/04/1998CN1198283A Arrangement for suppressing interfering component of input signal
11/04/1998CN1198281A Receiver architecture for the receiving of angle-modulated/anglekeyed carrier signals
11/04/1998CN1198275A Method and apparatus for transporting auxiliary data in audio signals
11/04/1998CN1198273A A receiver, a demodulator and a demodulation method
11/04/1998CN1198272A Dual transmitter arrangement with back-up switching
11/04/1998CN1198258A Receiver with stripline filter and stripline filter
11/04/1998CN1198235A Displaying data transmitted by radio
11/04/1998CN1198070A Radiotelephone and method for clock calibration for slotted paging mode in CDMA radiotelephone system
11/04/1998CN1198069A Response message transmitter in celluar mobile telephone apparatus
11/04/1998CN1198053A Method and apparatus for acquiring pilot signalin CDMA receiver
11/04/1998CN1198052A Method and apparatus for synchronizing carrier frequency of orthogonal frequency division multiplexing transmission system
11/04/1998CN1198050A Data receiving apparatus and received data processing method for use therein
11/04/1998CN1198049A Rake receiver for reducing hardware consumption and improving search performance
11/04/1998CN1198047A Audio signal compressing/decompressing method
11/04/1998CN1198046A Weak signal resolver
11/04/1998CN1198039A One-bit digital signal processing
11/04/1998CN1197958A Encoding method and apparatus, decoding method and apparatus and recording medium
11/04/1998CN1040600C 无线电接收机 Radio receiver
11/03/1998US5832427 Audio signal signal-to-mask ratio processor for subband coding
11/03/1998US5832426 High efficiency audio encoding method and apparatus
11/03/1998US5832424 Method for encoding an input signal
11/03/1998US5832391 Portable telephone apparatus having built-in option circuit
11/03/1998US5832390 Untethered microphone and base unit
11/03/1998US5832388 Portable radiotelephone device adapted to receive a variety of other portable devices
11/03/1998US5832377 Combined transmitter/receiver integrated circuit with learn mode
11/03/1998US5832376 For use at microwave or millimeter wave frequencies
11/03/1998US5832375 Superheterodyne radio receiver
11/03/1998US5832374 Radio transceiver including transmitter power control circuit
11/03/1998US5832372 Antenna assembly for a radio transceiver
11/03/1998US5832371 Modular radiotelephone
11/03/1998US5832119 Methods for controlling systems using control signals embedded in empirical data
11/03/1998US5832035 Fast locking mechanism for channelized ultrawide-band communications
11/03/1998US5832029 Apparatus for and method of acquiring synchronization for spread-spectrum communication system
11/03/1998US5832028 Method and apparatus for coherent serial correlation of a spread spectrum signal
11/03/1998US5832027 Spread spectrum modulating and demodulating apparatus for transmission and reception of FSK and PSK signals
11/03/1998US5832026 Method for correcting errors from a fading signal in a frequency hopped spread spectrum communcation system
11/03/1998US5832025 For receiving a spread spectrum signal
11/03/1998US5832021 Correlation detector for use in a spread spectrum communications receiver
11/03/1998US5831984 Reception method and CDMA receiver
11/03/1998US5831574 Method and apparatus for determining the location of an object which may have an obstructed view of the sky
11/03/1998US5831555 Keyboard encoding system actuated by opening and closing of keyboard cover
11/03/1998US5831548 Radio frequency transmitter having switched mode power supply
11/03/1998US5831256 Electronic card reader for reading cards of different formats, and portable telephone including such a reader
11/03/1998US5829657 Ticket stub display device and article carrier combination
11/03/1998US5829102 Housing assembly with a detachable mounting clip and a selective call receiver therein
11/03/1998CA2127819C Smooth spectrum spreading with a small spreading factor
10/1998
10/29/1998WO1998048589A2 Holding a connection in an isdn network with a dect intermediate system
10/29/1998WO1998048523A2 Transponder constructed for contactless inductive communication
10/29/1998WO1998048522A1 Personal communications system
10/29/1998WO1998048521A2 Terminal unit for digital mobile radiotelephone communication and method for evaluating data received in a terminal unit of this type
10/29/1998WO1998048520A1 Vswr control technique for terminal products with linear modulation
10/29/1998WO1998048478A1 High impedance type high frequency antenna
10/29/1998WO1998048475A1 Composite antenna for duplexer-free duplex operation terminals and method
10/29/1998WO1998037647A3 Method to gain access to a base station in a discrete multitone spread spectrum communications system
10/29/1998WO1998035473A3 Remote wireless unit having reduced power operating mode
10/29/1998WO1998026614A3 Base station for a radio telecommunications system
10/29/1998DE19747454C1 Data transmission method e.g. for GSM
10/29/1998DE19717237A1 Radio telephone holder arrangement for vehicle
10/28/1998EP0874485A2 Receiver for digital audio broadcast
10/28/1998EP0874484A2 Receiver for receiving broadcast programmes comprising supplementary text data which is multiplexed with the broadcast program
10/28/1998EP0874475A2 Adaptive antenna array using a combined coherent and constant modulus reference signal
10/28/1998EP0874471A2 Direct sequence spread spectrum correlator
10/28/1998EP0874470A2 Power saving circuit
10/28/1998EP0874469A2 Weak signal resolver
10/28/1998EP0874468A2 Broadcast receiver
10/28/1998EP0874467A2 Broadcast receiver
10/28/1998EP0874452A2 Reception circuit for cellular telephone
10/28/1998EP0874450A1 Power amplifiers device with small power degradation during failures
10/28/1998EP0874439A2 Charging a transponder in a security system
10/28/1998EP0874344A2 Method for receiving information by a mobile receiver in a motorcar, comprising a navigation means
10/28/1998EP0874249A2 Receiver system
10/28/1998EP0873920A2 Communications system
10/28/1998EP0873674A1 Method for manufacturing a housing part with a screening effect for radio communication equipment
10/28/1998EP0873640A1 Method and apparatus for reduced power consumption in a mobile packet data communication system
10/28/1998EP0873614A1 Post-compression hidden data transport
10/28/1998EP0873613A1 Data transmission method and equipment for encoding a signal
10/28/1998EP0873600A1 Method for unlicensed band port to autonomously determine interference threshold and power level
10/28/1998EP0873599A1 Bypass device in an amplifier unit
10/28/1998EP0873598A1 A method for direct sequence spreading of a data sequence (dsss)
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