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)
03/2002
03/12/2002US6355374 Arrangement in an electric apparatus
03/12/2002CA2228952C Noise cancellation and noise reduction apparatus
03/08/2002CA2357101A1 Mobile transceiver having stabilized antennas for use in satellite communications system
03/07/2002WO2002019671A1 Apparatus and method for enhancing low-frequency operation of mobile communication antennas
03/07/2002WO2002019670A2 Radio device with a whip antenna and a built-in antenna
03/07/2002WO2002019669A2 Hands-free kit for mobile radio-telephone handset
03/07/2002WO2002019665A2 Protective cover
03/07/2002WO2002019645A1 Frequency offset estimator
03/07/2002WO2002019608A1 Receiver and method for improving synchronisation
03/07/2002WO2002019586A1 Cdma receiver and cdma receiving method
03/07/2002WO2002019584A1 Multiplexer, receiver, and multiplex transmission method
03/07/2002WO2002019583A1 Multicarrier transmitter and multicarrier transmission method
03/07/2002WO2002019577A1 Rake receiver for cdma wireless communications
03/07/2002WO2002019568A1 Base station device, control station device, and transmission power control method
03/07/2002WO2002019564A2 Method and apparatus for plurality signal generation
03/07/2002WO2002019560A1 Cdma based transmitter for producing particular pilot signal for changing call mode and wireless communication terminals corresponding to the same
03/07/2002WO2002019559A1 Radio receiver
03/07/2002WO2002019558A1 Method and device for sequencing signals from multiusers
03/07/2002WO2002019557A1 Method and device for demodulating signals from multiusers
03/07/2002WO2002019556A2 Tracking of a multi-path resolved signal in a rake receiver
03/07/2002WO2002019555A2 Early-late detection in a cdma receiver
03/07/2002WO2002019554A1 Communication system
03/07/2002WO2002019553A1 Direct conversion receiver
03/07/2002WO2002019551A2 Circuits and methods for reducing interference from switched mode circuits
03/07/2002WO2002019548A2 Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals
03/07/2002WO2002019546A2 Method and apparatus for receive channel noise suppression
03/07/2002WO2002019545A2 System for closed loop power control using a linear or a non-linear power amplifier
03/07/2002WO2002019542A2 Method and device for pre-equalizing radio channels
03/07/2002WO2002019541A2 Method and device for the pre-equalisation of radio channels
03/07/2002WO2002019521A2 Receiver impedance calibration arrangements in full duplex communication systems
03/07/2002WO2002019519A1 Power amplifier module
03/07/2002WO2002019319A1 Speech processing device and speech processing method
03/07/2002WO2002019318A1 Noise suppressor and noise suppressing method
03/07/2002WO2001086809A3 Method and apparatus for compensating local oscillator frequency error through environmental control
03/07/2002WO2001076110A3 Method and apparatus for measuring channel state information
03/07/2002WO2001067128A3 Geolocation system combined with wireless communication
03/07/2002WO2001065758A3 Multimode fast attack automatic gain control (agc) loop for narrow band receivers
03/07/2002US20020029382 Method of locking or unlocking a service on a digital receiver of audiovisual programs and device for implementing the method
03/07/2002US20020029253 Network linking method using information embedded in data objects that have inherent noise
03/07/2002US20020029143 System and method for effectively implementing fixed masking thresholds in an audio encoder device
03/07/2002US20020028702 Method and apparatus for transmitting and receiving data using continuous tone control squelch system
03/07/2002US20020028701 Power switching unit of a portable telephone
03/07/2002US20020028692 Spread spectrum communication system and transmission power control method therefor
03/07/2002US20020028667 Frequency synthesizer capable of obtaining signals in three frequency bands
03/07/2002US20020028664 Control method and circuit for using a heterojunction bipolar transistor power amplifier in a zero intermediate frequency architecture transmitter
03/07/2002US20020028663 Low power radio frequency transmitter with controllable gain
03/07/2002US20020028662 Portable communication terminal apparatus
03/07/2002US20020028657 Communication system
03/07/2002US20020027965 Correlation detecting method and matched filter unit
03/07/2002US20020027960 Fast adaptive power control for variable multirate communications system
03/07/2002US20020027959 Fast adaptive power control for a variable multirate communications system
03/07/2002US20020027956 Communication system and method for transmitting signal in the same
03/07/2002US20020027949 Receiver having a memory search for fast acquisition of a spread spectrum signal
03/07/2002US20020027948 Spread-spectrum high data rate system and method
03/07/2002US20020027947 Common packet channel
03/07/2002US20020027946 Method for adaptive reverse power control for spread-spectrum communications
03/07/2002US20020027898 Cell search method and apparatus for mobile station in mobile communication system
03/07/2002US20020027892 CDMA base transceiver system
03/07/2002US20020027883 Method for balancing the ratio Eb/I in a service multiplexing CDMA system and telecommunication systems using same
03/07/2002US20020027875 OFDM transmitting and receiving apparatus and OFDM transmitting and receiving method
03/07/2002US20020027832 Portable object, in particular a watch, including multiple selectable electronic modules
03/07/2002US20020027532 On-glass impedance matching antenna connector
03/07/2002US20020027531 Circuit module
03/07/2002US20020027528 Wireless handset using a slot antenna
03/07/2002US20020027483 Filter, multiplexer, and communication apparatus
03/07/2002US20020027471 Frequency adjusting circuit in code division multiple access communication system
03/07/2002US20020027009 Isolation apparatus for electronic equipment
03/07/2002DE10041922A1 Wrist watch has liquid crystal display or light emitting diode that is used to inform user, when radio signal is received by receiver which can receive two discreet frequencies of up to 433 MHz
03/07/2002DE10041483A1 Vorrichtung für die Wiedergabe von Audiosignalen Device for playback of audio signals
03/07/2002CA2421173A1 Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals
03/07/2002CA2420687A1 System for closed loop power control using a linear or a non-linear power amplifier
03/07/2002CA2389592A1 Method and device for sequencing signals from multiusers
03/07/2002CA2389588A1 Method and device for demodulating signals from multiusers
03/06/2002EP1185104A1 Mobile terminal battery power conservation
03/06/2002EP1185058A2 Method and apparatus for detecting user accessibility on a mobile communication device
03/06/2002EP1185046A2 Radio communication apparatus and channel estimating method
03/06/2002EP1185038A2 Radio transmission/reception device, method, system, and storage medium
03/06/2002EP1185016A1 Multiplex communication system and method of signal processing
03/06/2002EP1185009A2 Leak power ratio detection circuit, mobile communication terminal, and control circuit for mobile communication terminal
03/06/2002EP1185003A2 Adaptive antenna receiving apparatus
03/06/2002EP1185000A1 Receiving device for mobile radio communications unit using velocity estimator
03/06/2002EP1184999A1 Method and device for adjusting the amplification of a signal transmitted by a mobile terminal in order to increase battery life
03/06/2002EP1184997A1 Multi-user detection method
03/06/2002EP1184996A1 Non-coherent DP-MOK reception method with multipath combination, and receiver for carrying out the method
03/06/2002EP1184995A2 Cell search method and apparatus for mobile station in mobile communication system
03/06/2002EP1184994A2 CDMA Base station system
03/06/2002EP1184993A2 A method and circuit for cell search in W-CDMA systems
03/06/2002EP1184992A2 Spread spectrum communication device and spread spectrum communication method
03/06/2002EP1184991A2 Mobile radio terminal with automatic frequency control circuit
03/06/2002EP1184982A1 Remote control device
03/06/2002EP1184980A2 Digital receiver
03/06/2002EP1184974A2 Antenna unit and receiving circuit
03/06/2002EP1184971A1 Switching mixer
03/06/2002EP1184970A2 Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer
03/06/2002EP1184967A2 RF oscillator apparatus and transceiver apparatus
03/06/2002EP1184932A1 Device for the transmission of electromagnetic signals through a structure comprising modules for achieving a one out of two redundancy
03/06/2002EP1184236A2 Radio system
03/06/2002EP1183921A1 High-frequency current supressor capable of being readily attached to cable or the like and earphone system using the same
03/06/2002EP1183887A1 A security system for controlling the power circuit of a mobile telephone
03/06/2002EP1183813A1 Time and frequency diversity in fh/tdd systems
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