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)
10/2000
10/05/2000WO2000059122A1 Portable digital radio and compact disk player
10/05/2000WO2000059121A1 Method and apparatus to increase the backup battery lifetime in a base station
10/05/2000WO2000059119A1 Mobile telecommunications terminal
10/05/2000WO2000059071A1 Antenna system
10/05/2000WO2000058935A1 Method of using buttons associated with a display to access and execute associated functions
10/05/2000WO2000058752A1 Radio frequency identification tag device with sensor input
10/05/2000WO2000058749A1 Mobile radio receiver
10/05/2000WO2000058741A1 Integrated circuit testing device with dual purpose analog and digital channels
10/05/2000WO2000010272A9 Efficient spectral saving fqpsk and fqam signal transmission and reception systems
10/05/2000DE19855292C1 Digitales Funkkopfhöhrersystem Digital Funkkopfhöhrersystem
10/05/2000DE10015841A1 Mobile device, such as mobile telephone, has RC oscillator for clocking integrated processing circuit
10/05/2000DE10012636A1 Mobile telephone frequency generating circuit includes two oscillators under control from coefficient table to produced required output
10/05/2000CA2368982A1 Programmable matched filter searcher
10/05/2000CA2363502A1 Method and device for reducing crosstalk interference
10/04/2000EP1041852A2 Protection switching method and apparatus for passive optical network system
10/04/2000EP1041849A1 Protecting a predetermined area from disturbing usage of mobile terminals
10/04/2000EP1041788A2 Carrier frequency correction using pilot blocks
10/04/2000EP1041766A2 Apparatus for communicating multiple digital representations of a signal
10/04/2000EP1041759A2 Method and device for digital frame synchronisation of a transmission signal
10/04/2000EP1041757A2 Receiver for receiving broadcasting signals comprising two tuners, at least one of which is a receiver for receiving a Digital Audio Broadcast signal, comprising a means for comparing the output signals of the two receivers as well as a means for selecting either of those signals
10/04/2000EP1041756A2 Multistream-in-band-on-channel transmission system
10/04/2000EP1041730A1 Receiver module and receiver composed of several cascaded modules
10/04/2000EP1041729A1 Method for clock synchronisation of a digital signal
10/04/2000EP1041728A2 Spread-spectrum system and method
10/04/2000EP1041727A2 Spread-spectrum system and method
10/04/2000EP1041726A2 A receiving apparatus of spectrum spread communication system
10/04/2000EP1041725A2 RAKE receiver
10/04/2000EP1041724A1 Modular RF IC architecture
10/04/2000EP1041723A2 System for matching an antenna for a wireless communication device
10/04/2000EP1041710A1 Transceiver using an image reject mixer
10/04/2000EP1041681A1 Electronic equipment terminal connector
10/04/2000EP1040664A1 System for acquiring information requested by a user via a program guide selection
10/04/2000EP1040605A2 Initial acquisition and frame synchronization in spread spectrum communication system
10/04/2000EP1040604A1 Rapid signal acquisition and synchronization for access transmissions
10/04/2000EP1040595A1 Device and method for generating short pn code in mobile communication system
10/04/2000EP1040594A1 Spread spectrum multipath demodulator for a multichannel communication system
10/04/2000EP1040593A1 Method and apparatus for frequency acquisition and tracking for ds-ss cdma receivers
10/04/2000EP1040592A1 Method and generator for generating orthogonal spreading code in cdma radio system
10/04/2000EP1040591A1 Rake receiver
10/04/2000EP1040590A1 Increased capacity in an ocdma system for frequency isolation
10/04/2000EP1040589A1 Distributed radio telephone for use in a vehicle
10/04/2000EP1040588A1 Remote control code search method and apparatus
10/04/2000EP1040587A1 Receiver with sigma-delta analog-to-digital converter
10/04/2000EP1040586A1 Programmable linear receiver
10/04/2000EP1040585A1 Radio receiver with built-in operating instructions
10/04/2000EP1040533A2 Device and method for controlling initial transmission power of forward link channel in mobile communications system
10/04/2000EP1040467A1 Communication terminal
10/04/2000EP1040454A1 Method for reallocating an actuating element to a remote control device, and remote control device
10/04/2000CN2399889Y Mine walkie-talkie telephone
10/04/2000CN1269101A System for automatically ofrming program guid from information derived from multiple sources
10/04/2000CN1269085A Comb-like spectrum communication method of complementary series repetition modulation type
10/04/2000CN1269080A Device and method for reducing the peak-to-average power ratio of a mobile station's transmit power
10/04/2000CN1269074A Device and method for a mobile station for receiving signals transmitted from a base station
10/04/2000CN1269071A Radio communications device with reference-compensated power down control and its operation method
10/04/2000CN1269067A Wide band channelization using subsampled discrete fourier transforms
10/04/2000CN1269066A Efficient parallel-stage power amplifier
10/04/2000CN1269050A Apparatus and method for controlling household appliances
10/04/2000CN1268858A Method for displaying alternated speaking/receiving under louerspeaker working condition for mobile telephone set
10/04/2000CN1268857A Protection of use in drift terminal in predetermined zone from being interference
10/04/2000CN1268830A Multiple frequency band data communication equipment and communication method and storage medium therefor
10/04/2000CN1268822A Receiving device for spread spectrum communication system
10/04/2000CN1268821A Relay device and receiving device for corss frequency-division multiplex transmitting signal
10/04/2000CN1268816A Radio receiver, radio receiving method and recording medium
10/04/2000CN1268812A Electronic device terminal connector, and means for connecting electronic device and its terminal
10/04/2000CN1268788A Active antenna for communication system
10/04/2000CN1268713A Searching system, search device and method and input device and method
10/04/2000CN1057176C Switched capacitor bandpass filter for detecting pilot signal
10/03/2000US6128515 Combined global positioning and wireless telephone device
10/03/2000US6128512 Cellular communication system with dedicated repeater channels
10/03/2000US6128508 Communications system using multi-band amplifiers
10/03/2000US6128486 Reception method and base station receiver
10/03/2000US6128478 Apparatus and method for amplifying a radio frequency signal
10/03/2000US6128476 Transmitting diversity circuit for TDMA radio unit
10/03/2000US6128474 Test circuit of base station for mobile radio communication system
10/03/2000US6128466 Wireless receiving subsystem
10/03/2000US6128412 Statistical data compression/decompression method
10/03/2000US6128390 Data processor for FM multiplex broadcast
10/03/2000US6128371 Multiple-service offering communication terminal and multiple-service offering apparatus
10/03/2000US6128337 Multipath signal discrimination
10/03/2000US6128333 Spread spectrum radio transmission digital mobile communication
10/03/2000US6128332 Spread spectrum transmitter and receiver employing composite spreading codes
10/03/2000US6128331 Correlation system for use in wireless direct sequence spread spectrum systems
10/03/2000US6128330 Efficient shadow reduction antenna system for spread spectrum
10/03/2000US6128329 Spread-spectrum receiver
10/03/2000US6128328 Frequency hopping code division multiple access system and method
10/03/2000US6128327 Frequency hopping
10/03/2000US6128289 Voice coding method at a code division multiple access base station
10/03/2000US6128288 CDMA cellular radio transmission system
10/03/2000US6128276 Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays
10/03/2000US6127989 Monolithic integrated circuit and antenna coil structure comprising a peripheral protective ring
10/03/2000US6127982 Apparatus and method for processing satellite and terrestrial signals
10/03/2000US6127929 Transponder for half-duplex communication
10/03/2000US6127917 System and method for locating individuals and equipment, airline reservation system, communication system
10/03/2000US6127890 Variable gain circuit with improved gain response
10/03/2000US6127660 Heated microcell base station
10/03/2000CA2134365C Self-adjusting rf repeater arrangements for wireless telephone systems
10/03/2000CA2012487C Wireless headphone
09/2000
09/29/2000CA2302608A1 Multistream in-band-on-channel systems
09/28/2000WO2000057625A2 Satellite communication card
09/28/2000WO2000057616A2 Communications devices and methods that operate according to communications device orientations determined by reference to gravitational sensors
1 ... 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 ... 1886