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