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)
05/2000
05/31/2000CN1255268A Method of and apparatus for transmitting data for interactive TV. applications
05/31/2000CN1255266A Method and apparatus for preventing fraudulent access in conditional access system
05/31/2000CN1255212A Computer memory organization
05/31/2000CN1255210A Hierarchical menu graphical user interface
05/31/2000CN1255035A Supporter of sound body
05/31/2000CN1255030A Portable radio equipment
05/31/2000CN1254998A Radio communication equipment and method for lowering its energy consumption
05/31/2000CN1254997A Transmitter of CDMA communication system
05/31/2000CN1254996A Frequency modulation circuit
05/31/2000CN1254994A Method for automatic frequency control of moving station in waiting mode
05/31/2000CN1254992A Self-adaptive wireless parameter regulation method
05/31/2000CN1254983A Transistor circuit with direct couple stage
05/31/2000CN1254981A Stable power amplifier and transceiver terminal with it
05/31/2000CN1254916A Reproducer and signal processor
05/31/2000CN1053075C Method and apparatus for receiving and decoding communication signals in a CDMA reciver
05/31/2000CN1053072C Apparatus and method for enabling elements of a phase locked loop
05/30/2000US6070136 Matrix quantization with vector quantization error compensation for robust speech recognition
05/30/2000US6070088 Mobile telephone set with automatic sound level control
05/30/2000US6070086 Closed loop power transmitter power control unit for a CDMA cellular system
05/30/2000US6070062 Mobile radio wave receiver with adaptive automatic gain control
05/30/2000US6070060 Frequency and frequency rate of change radio broadcasting and other types of communications systems
05/30/2000US6070059 High-frequency switch
05/30/2000US6070058 Saturation prevention system for radio telephone with open and closed loop power control systems
05/30/2000US6069925 Dual band, dual mode transceiver with adaptive second if switching device
05/30/2000US6069923 Method and a circuit arrangement for the processing of received signals in a telecommunication system
05/30/2000US6069920 Method and arrangement for transmitting voice in a radio system
05/30/2000US6069915 Randomized code acquisition
05/30/2000US6069912 Diversity receiver and its control method
05/30/2000US6069851 Entertainment micro system
05/30/2000US6069672 Remote control for a receiver
05/30/2000US6069580 Multi-conversion radar detector having increased tuning range and self-calibrating function
05/30/2000US6069574 Hadamard code generation circuit
05/30/2000US6069567 Audio-recording remote control and method therefor
05/30/2000US6069541 High-frequency filter, with an inductor for forming a pole, complex electronic component using the same, and portable radio apparatus using the same
05/30/2000US6069538 Impedance stabilizing unit and high-frequency module using the unit
05/30/2000US6069537 Double mode modulator
05/30/2000US6069527 Feed forward amplifier
05/30/2000US6068947 Thin-profile battery circuits and constructions and button-type battery circuits and constructions
05/30/2000US6068186 Chip card reader with adapter for reading cards of different formats, telephone comprising such a reader
05/30/2000CA2213654C Rake receiver
05/30/2000CA2184184C Apparatus and method for establishing acquisition of spreading code in cdma transmission system
05/30/2000CA2136592C Communication method/apparatus/system capable of performing fdma transmission
05/25/2000WO2000030350A1 Apparatus for receiving programs
05/25/2000WO2000030328A1 Method for the power-saving operation of communication terminals in a communication system especially in a wireless communication systems
05/25/2000WO2000030312A1 Frequency correction in a pilot symbol assisted demodulator
05/25/2000WO2000030280A1 Channel spreading device and method for cdma communication system
05/25/2000WO2000030276A1 Radio communication device and transmission antenna switching method
05/25/2000WO2000030273A1 Adaptive multiple sub-band common-mode rfi suppression
05/25/2000WO2000030271A1 Synchronization method and apparatus employing partial sequence correlation
05/25/2000WO2000030270A1 Method for transmitting data in a radiocommunication system with cdma subscriber separation and variable spread factors
05/25/2000WO2000030268A1 Portable radiotelephones including patch antennas
05/25/2000WO2000030267A1 Cellular phone, flip, and hinge
05/25/2000WO2000030266A1 Integrated communication system for a vehicle
05/25/2000WO2000030265A2 Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver
05/25/2000WO2000030264A1 Signal processing apparatus and method
05/25/2000WO2000030260A1 Method and apparatus for automatic gain control
05/25/2000WO2000030250A1 Circuit and method for linearizing amplitude modulation in a power amplifier
05/25/2000WO2000030248A1 Rf power amplifier linearization using parallel rf power amplifiers having intermod-complementing predistortion paths
05/25/2000WO2000030245A1 Circuit and method for i/q modulation with independent, high efficiency amplitude modulation
05/25/2000DE19955564A1 Appliance for analyzing wide band code division multiple access communication systems includes a frequency conversion unit and a signal analyzer
05/25/2000CA2351685A1 Circuit and method for i/q modulation with independent, high efficiency amplitude modulation
05/25/2000CA2317586A1 Radio communication apparatus and transmission antenna changing method
05/24/2000EP1003311A2 Modulation, demodulation and antenna coupling circuits used in IC card reading/writing apparatus, and method of supplying power to the IC card
05/24/2000EP1003300A2 Method for the automatic restart of optical transmitters in fiber optic links
05/24/2000EP1003291A2 Composite high frequency switching circuit for mobile communications equipment
05/24/2000EP1003289A1 Portable radio device
05/24/2000EP1003284A2 AGC circuit
05/24/2000EP1003277A1 Frequency multiplier capable of taking out efficiently and stably harmonics higher than fourth order
05/24/2000EP1002379A2 Method and apparatus for predictive parameter control with loop delay
05/24/2000EP1002377A1 Method and device for synchronising carrier frequencies in a mobile telephone on carrier frequencies of a fixed station
05/24/2000EP1002376A1 Method and device for registering a mobile telephone in a fixed station
05/24/2000EP1002375A1 Method and device for producing a random number sequence for carrier frequencies in a mobile radiotelephone system
05/24/2000EP1002374A1 Method and device for producing a carrier frequency sequence
05/24/2000EP1002372A1 Remote control auto radio
05/24/2000EP1002371A2 Multi-tuner receiver
05/24/2000EP1002365A1 Rds frequency replacement tests at low frequency minimum level
05/24/2000EP1002316A1 Model and command set for an av/c-based disc player/recorder subunit
05/24/2000EP0882370A4 Multi-media receiver and system therefor
05/24/2000EP0806809B1 Hand-held communication equipment with a radiation shielding antenna apparatus
05/24/2000EP0776584A4 Cellular telephone credit card billing system
05/24/2000CN2379974Y Wired, duplex and sound enlarged type mutual talking telephone extension set
05/24/2000CN1254478A Data processing system
05/24/2000CN1254477A Transmission and reception of television programmes and other data
05/24/2000CN1254476A Signal generation and broadcasting
05/24/2000CN1254475A Method of downloading of data to MPEG receiver/decoder and MPEG transmission system for implementing the same
05/24/2000CN1254474A Smartcard for use with receiver of encrypted broadcast signals, and receiver
05/24/2000CN1254473A Broadcast and reception system, and conditional access system therefor
05/24/2000CN1254472A Broadcast and reception system, and receiver/decoder and remote controller
05/24/2000CN1254469A Extracting data sections from transmitted data stream
05/24/2000CN1254461A Power control of RF signals with booster module
05/24/2000CN1254460A Method and apparatus for controlling transmission power in communication system
05/24/2000CN1254458A Hand-held cellular telephone with power management features
05/24/2000CN1254457A Configurable single-chip transceiver integrated circuit architecture
05/24/2000CN1254453A Method and apparatus for efficient signal power amplification
05/24/2000CN1254423A Television or radio control system development
05/24/2000CN1254422A Downloading computer file from transmitter via receiver/decoder to computer
05/24/2000CN1254246A Transmission method of radio telephone network of universal moving telephone system
05/24/2000CN1254235A Method for executing different functions by using one key and executing identical function by using different keys
05/24/2000CN1254225A Transmitting power control method using one pilot code element mode
05/24/2000CN1254222A Transmitting power control method of code-division multiple address communication system and its system