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)
10/2001
10/24/2001CN1319280A Method of, and receiver for, frequency acquisition in frequency hopping system
10/24/2001CN1319279A Time offset technique for increasing capacity of CDMA system
10/24/2001CN1319278A Method for receiving or sending message
10/24/2001CN1319277A Isolator with built-in power amplifier
10/24/2001CN1319266A Dual antenna and radio device provided therewith
10/24/2001CN1319229A Portable information terminal, method of processing audio data, recording medium, and program
10/24/2001CN1318959A Portable telephone set
10/24/2001CN1318957A Receiver system and method using RF analog-digital conversion
10/24/2001CN1318954A Impact-resistance electromagentic converter
10/24/2001CN1318953A Pilot utilization in orthogonal frequency-division multiplex base spread spectrum multiple access system
10/24/2001CN1318942A Subscriber interface of digital TV system
10/24/2001CN1318923A Device and method of obtaiing communication quality
10/24/2001CN1318922A Demodulating device and method for mobile communication
10/24/2001CN1318921A Initial sync and small area search device of CDMA system based on multipath energy window
10/24/2001CN1318920A Direct bandspread/comprehensive CDMA bandspread coherent receiver
10/24/2001CN1318919A Partial Hadamard transform search for auxiliary wideband CDMA sync channel
10/24/2001CN1318916A Base station recognition for use in spread spectrum multiple access system based on orthogonal frequency-division multiplex
10/24/2001CN1318915A Digital signal receiving apparatus
10/24/2001CN1318907A Portable communication apparatus with automatic operation holding system and operating method thereof
10/24/2001CN1318818A 显示器件 Display Devices
10/24/2001CN1073783C Communication system interconnecting telephone communication system and single-frequency simultaneous transmission/reception radio telephone system
10/24/2001CN1073764C Receiver and method for generating spreading codes in receiver
10/24/2001CN1073763C Radio communication equipment using single frequency and method thereof
10/24/2001CN1073762C Automatic gain control apparatus
10/23/2001USRE37420 Automobile on-board and/or portable telephone system
10/23/2001US6308221 Selecting communication link between client and server
10/23/2001US6308150 Dynamic bit allocation apparatus and method for audio coding
10/23/2001US6308084 Mobile communications device with a camera
10/23/2001US6308059 Ruggedized tradesworkers radio
10/23/2001US6308057 Radio receiver having compensation for direct current offset
10/23/2001US6308056 Double super tuner
10/23/2001US6308055 Method and apparatus for operating a PLL for synthesizing high-frequency signals for wireless communications
10/23/2001US6308053 Recyclable wireless telephone unit with a secured activation switch
10/23/2001US6308052 Half-duplex radios for indicating signal transmissions
10/23/2001US6308051 Antenna duplexer
10/23/2001US6308050 Dual band mobile phone using the same intermediate frequency for both bands
10/23/2001US6308048 Simplified reference frequency distribution in a mobile phone
10/23/2001US6308047 Radio-frequency integrated circuit for a radio-frequency wireless transmitter-receiver with reduced influence by radio-frequency power leakage
10/23/2001US6307897 Radio receiving apparatus for receiving communication signals of different bandwidths
10/23/2001US6307896 Instrumentation receiver for digitally modulated radio frequency signals
10/23/2001US6307889 Method for fast initialization of multicarrier system and point-to-multipoint transfer of multicarrier signal in digital subscriber line
10/23/2001US6307879 Digital radio communication apparatus and method of controlling the same
10/23/2001US6307878 Cellular telephony searcher
10/23/2001US6307868 Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops
10/23/2001US6307850 CDMA radio transmission system
10/23/2001US6307840 Mobile station assisted timing synchronization in CDMA communication system
10/23/2001US6307600 Tuning with diode detector
10/23/2001US6307599 Analog-digital broadcast shared receiving tuner
10/23/2001US6307471 Radio based proximity token with multiple antennas
10/23/2001US6307448 Frequency-variable-type filter, antenna duplexer, and communication apparatus
10/23/2001US6307445 Impedance match of transmission lines having a connection arrangement for selecting impedance
10/23/2001US6305588 Releasable coupling for a suspension stud on a wall of a mobile telephone
10/23/2001US6305026 Cap with headphones assembly
10/23/2001CA2288460C Distortion compensation circuit
10/18/2001WO2001078452A2 Electronic audio or visual user interfaceable system and control arrangement therefor
10/18/2001WO2001078443A2 Earset communication system
10/18/2001WO2001078442A2 Earphones and microphone (personal speaking device) that do not transmit or emit microwave radiation or any other dangerous radiation
10/18/2001WO2001078293A1 A method for coding in a telecommunications system
10/18/2001WO2001078280A1 Multiplex communication system and method of signal processing
10/18/2001WO2001078253A1 Method for signal processing used in terminal device of code division multiple access mobile communication system
10/18/2001WO2001078252A1 Radio communication system and method of controlling downlink transmission power or bit rate
10/18/2001WO2001078247A1 Multi-channel-bandwidth frequency-hopping system
10/18/2001WO2001078243A1 Radiation-free cellular telephone system
10/18/2001WO2001078242A2 Interference detection, identification, extraction and reporting
10/18/2001WO2001076949A2 Method and device for producing data carriers equipped with an integrated transponder
10/18/2001WO2001052430A8 Method for interference detection and cancellation in a tramsmission system
10/18/2001WO2001022617A3 Power estimation method
10/18/2001WO2001001594A8 Multistep rake combining method and apparatus
10/18/2001US20010032279 Electronic device system, controlling device and controlling method
10/18/2001US20010032027 Digital-signal receiving apparatus
10/18/2001US20010031651 Portable telephone
10/18/2001US20010031629 Superheterodyne receiver
10/18/2001US20010031628 Integrated circuit device and commuunication apparatus using the same
10/18/2001US20010031627 Multiband frequency generation using a single PLL-circuit
10/18/2001US20010031622 Personal mobile communications device having multiple units
10/18/2001US20010031065 Processing scanned security documents notwithstanding corruptions such as rotation
10/18/2001US20010031048 Method and system for data communication
10/18/2001US20010031023 Method and apparatus for generating pulses from phase shift keying analog waveforms
10/18/2001US20010031010 Method and apparatus for the reflection and transmission of quasi orthogonal vectors
10/18/2001US20010030997 Sliding matched filter with flexible hardware complexity
10/18/2001US20010030996 Receiver and receiving method in spread spectrum communication system
10/18/2001US20010030995 Method for acquisition of slot timing in a direct sequence spread spectrum communication receiver
10/18/2001US20010030994 Acquisition method and apparatus for carrying out the method
10/18/2001US20010030993 Method and apparatus for digital symbol detection using medium response estimates
10/18/2001US20010030992 Despreading apparatus and method for CDMA signal
10/18/2001US20010030991 Apparatus and method for measurement of communication quality in CDMA system
10/18/2001US20010030990 Reverse link correlation filter in wireless communication systems
10/18/2001US20010030988 Spread spectrum, frequency hopping transceiver with frequency discriminator quadrature filter
10/18/2001US20010030973 Traffic lights in a code division multiple access (CDMA) modem
10/18/2001US20010030947 Spread-spectrum changeable base station
10/18/2001US20010030626 Retractable/extendable antenna for portable radio device
10/18/2001US20010030620 Analogue frontend
10/18/2001US20010030511 Display device
10/18/2001DE10047613A1 Verfahren und System zum Betreiben eines tragbaren Telefons durch Spracherkennung A method and system for operating a portable telephone by speech recognition
10/18/2001DE10019166A1 Wearable wristwatch type device comprising telephone, computer, controller, etc. combined in two modules on the wrist linked by a strap that incorporates power and data connections
10/18/2001DE10017431A1 Verfahren und Vorrichtung zum Herstellen von Datenträgern mit integriertem Transponder Method and apparatus for producing data carriers with integrated transponder
10/18/2001DE10013913A1 Method of determining the distance of a hand-operated module from a device-module, esp. for motor vehicle access system, involves generating first and second signals and evaluating the difference of the signal propagation delay times
10/18/2001CA2444128A1 Earphones and microphone (personal speaking device) that do not transmit or emit microwave radiation or any other dangerous radiation
10/18/2001CA2405189A1 Radiation-free cellular telephone system
10/18/2001CA2339515A1 Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems