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)
11/2000
11/28/2000US6154788 Multi-function module incorporating flash memory having additional controller adapted to configure the data from the memory that is to be provided to the external source
11/28/2000US6154665 Radio telephone proximity detector
11/28/2000US6154664 Dual band cellular phone with two power amplifiers and power control circuit therefore
11/28/2000US6154663 Portable telephone communications system
11/28/2000US6154649 Broadcast receiver with integrated telephone unit
11/28/2000US6154641 Wideband multiple channel frequency converter
11/28/2000US6154640 Method and apparatus for communication and signal synthesis
11/28/2000US6154639 Handsfree unit
11/28/2000US6154634 Communications system including closely spaced transmit and receive antennas
11/28/2000US6154540 Radio communication device with expanded keypad capability
11/28/2000US6154487 Spread-spectrum signal receiving method and spread-spectrum signal receiving apparatus
11/28/2000US6154486 Preamble code structure and detection method and apparatus
11/28/2000US6154484 Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing
11/28/2000US6154483 Coherent detection using matched filter enhanced spread spectrum demodulation
11/28/2000US6154482 Spread spectrum communications system and receiver
11/28/2000US6154456 Apparatus and method for digital data transmission using orthogonal codes
11/28/2000US6154454 Radio communication device and mobile communication system
11/28/2000US6154453 Method of selecting vocoder in code division multiple access mobile communication system
11/28/2000US6154443 FFT-based CDMA RAKE receiver system and method
11/28/2000US6154209 Graphical user interface with method and apparatus for interfacing to remote devices
11/28/2000US6152373 Detector of radio frequency signals for contactless chip cards
11/28/2000CA2131082C Notch filtering a spread spectrum signal using fourier series coefficients
11/28/2000CA2050666C D.c. offset compensation in a radio receiver
11/28/2000CA2023821C Spread spectrum communications system for networks
11/28/2000CA2009603C Quieting receiver during power interruption
11/27/2000CA2306072A1 Down converter and demodulator using a three port junction
11/27/2000CA2273062A1 Safer cellular telephone
11/26/2000CA2272875A1 Spread spectrum time-division multiple access communication scheme
11/25/2000CA2308821A1 Playing audio of one kind in response to user action while playing audio of another kind
11/23/2000WO2001069805A1 Personal digital assistant/telephone combination device
11/23/2000WO2000070907A1 Electronic devices using earphones and wireless earphones
11/23/2000WO2000070835A1 Method for blindly estimating channel parameters
11/23/2000WO2000070811A1 Time and frequency diversity in fh/tdd systems
11/23/2000WO2000070804A1 Photonic integrated circuit for optical cdma
11/23/2000WO2000070803A1 Apparatus and method for generating frame sync word and verifying the frame sync word in w-cdma communication system
11/23/2000WO2000070796A1 Remote control incorporating self test capability
11/23/2000WO2000070795A1 Mobile telephone having short-distance voice/character communication function
11/23/2000WO2000070791A1 Method of providing burst timing for high-speed data transmission in a base station transceiver system of a mobile communication system
11/23/2000WO2000070786A1 Method for supporting a discontinuous transmission mode in a base station in a mobile communication system
11/23/2000WO2000070785A1 Method for transmitting signals from a plurality of base stations to a mobile station
11/23/2000WO2000070781A1 Mobile terminal unit
11/23/2000WO2000070779A1 Combined-use assembly of mobile telephone and audio
11/23/2000WO2000070778A1 Radiotelephone set
11/23/2000WO2000070777A1 Radio communication apparatus
11/23/2000WO2000070776A1 Method and device for the radioelectrical transmission of original signals, especially sound signals
11/23/2000WO2000070775A1 Portable receiver-indicator for satellite radio-navigation systems
11/23/2000WO2000070773A2 Amplitude and phase estimation method in a wireless communication system
11/23/2000WO2000070751A1 Broadcast transmission system with correction for distortion
11/23/2000WO2000070748A1 Broadcast transmission system with sampling and correction arrangment for correcting distortion caused by amplifying and signal conditioning components
11/23/2000WO2000070746A1 Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform
11/23/2000WO2000070708A1 Glass antenna device for vehicle and radio receiver apparatus using the same
11/23/2000WO2000070577A1 Method of displaying manufacturer/model code and programmable universal remote control employing same
11/23/2000WO2000070576A1 Transmitter tolerant to crystal variations
11/23/2000WO2000070574A1 Receiver capable of parallel demodulation of messages
11/23/2000WO2000070569A1 Overmolded electronics
11/23/2000WO2000070552A1 Programmable modulation index for transponder
11/23/2000WO2000069663A1 Power-on reset for transponder
11/23/2000WO2000044091A3 Antenna system for radio frequency identification
11/23/2000WO2000044066A3 Remote entry integrally molded transmitter
11/23/2000WO2000031990A3 Thermal transmission control of wireless data modem
11/23/2000WO2000030248A9 Rf power amplifier linearization using parallel rf power amplifiers having intermod-complementing predistortion paths
11/23/2000WO2000028712A3 Cable modem system
11/23/2000WO2000027066A3 Dual mode qam/vsb receiver
11/23/2000WO2000027040A3 Method and apparatus for reduction of fm interference for fm in-band on-channel digital audio broadcasting system
11/23/2000DE19957926A1 Interactive radio with combined receiver and transmitter, e.g. for ordering products
11/23/2000DE19933192A1 Procedure by which individual customer requirements for car radio operating software can be selected at the time of sale, stored in an external memory device and loaded on to the radio using an interface to the external device
11/23/2000DE19922777A1 Mobile telephone is technically simple, cost-effective and simple to operate
11/23/2000DE19922184A1 Estimating channel parameters of mobile radio channel
11/23/2000DE10015583A1 Internal radio transceiver antenna, for mobile telephone, has separate transmit/receive antennas on one dielectric block mounted on circuit board
11/23/2000CA2374079A1 Broadcast transmission system with correction for distortion
11/23/2000CA2373269A1 Receiver capable of parallel demodulation of messages
11/23/2000CA2373267A1 Method of displaying manufacturer/model code and programmable universal remote control employing same
11/23/2000CA2371489A1 Electronic devices using earphones and wireless earphones
11/23/2000CA2338042A1 Photonic integrated circuit for optical cdma
11/22/2000EP1054549A2 Arrangement for mounting and fastening an optical display device in a telecommunication apparatus
11/22/2000EP1054540A2 Null symbol position detecting method, null symbol position detecting apparatus, and receiver
11/22/2000EP1054524A2 Optical redundant switching method of optical wavelength multiplex system
11/22/2000EP1054523A1 Receiver and demodulator applied to mobile communication system
11/22/2000EP1054515A1 Method and system for transmission or radio signals, and in particular audio signals
11/22/2000EP1054507A2 Mobile station employing single ended use of a differential power amplifier for reduced output power
11/22/2000EP1054318A2 Programmable remote control device and method
11/22/2000EP1053648A1 Channel spreading device and method in cdma communication system
11/22/2000EP1053640A1 Television receiver with linking system for additional data
11/22/2000EP1053615A1 Multiple access method and system
11/22/2000EP1053613A2 Method and system for generating a complex pseudonoise sequence for processing a code division multiple access signal
11/22/2000EP1053600A1 A method for using encoded spreading codes to achieve high bit densities in a direct-sequence
11/22/2000EP1053599A1 A system for ensuring type acceptance requirements and enhancing equipment capabilities in a rf system
11/22/2000EP1053595A1 Apparatus and methods for tuning bandpass filters
11/22/2000EP1053594A1 Tunable receiver
11/22/2000EP1053590A1 Input circuit for an fm/am radio receiver
11/22/2000EP0812492A4 Dual audio program system
11/22/2000CN2407540Y Handfree communicator for mobile telephone
11/22/2000CN2407512Y Linkage chain for hand communication device
11/22/2000CN2407511Y Automatic impedance matching device for communication signal distributor
11/22/2000CN1274508A Information transmission system
11/22/2000CN1274498A Quasi-orthogonal code mask generating device in mobile communication system
11/22/2000CN1274496A Method for providing data service in CDMA communications system
11/22/2000CN1274495A System and method for mitigating intermittent interruptions in audio radio broadcast system
11/22/2000CN1274493A Initial acquisition and frame synchronization in spread spectrum communication system
11/22/2000CN1274492A Radio communication device and transmitting power control method
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