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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01/20/2000 | WO2000003366A1 Aircraft communication system |
01/20/2000 | WO2000003351A1 Analog interface for autonomous data exchange circuit |
01/20/2000 | WO1999059220A3 Impedance-matching device |
01/20/2000 | WO1999055017A8 High-speed pc modem connection system |
01/20/2000 | DE19935384A1 Receiver for digitized audio or image data such as radio or television program data from the Internet using two bidirectional interfaces for data exchange |
01/20/2000 | DE19932437A1 Radio remote control for servo motor on model airplane, helicopter |
01/20/2000 | DE19927710A1 Transceiveranordnung für ein Smart-Antennensystem in einer mobilen Kommunikationsbasisstation Transceiver arrangement for a smart antenna system in a mobile communication base station |
01/20/2000 | DE19927266A1 Receiver for digital audio broadcast signals, controls tuning unit to receive signal as long as frequency is tuned in and error rate is below threshold |
01/20/2000 | DE19832203A1 Activating electrically operated, current-consuming component through code word contained in data message of predetermined format |
01/20/2000 | DE19831942A1 Empfänger eines Telekommunikationsnetzes Receiver of a telecommunication network |
01/20/2000 | DE19831767A1 Access control using a bar type turnstile that has a built in antenna to receive control signals from access control data carrier |
01/20/2000 | DE19831627A1 Control with transmission reception and control unit for switching off mobile telephones and other electronic devices or to activate on-vehicle control unit in locations where interference may occur |
01/20/2000 | DE19831421A1 Person finding apparatus for locating people buried in avalanches etc. using audio signal frequency analysis |
01/20/2000 | DE19831202A1 Reception and playback method for sound data transmitted over world wide web |
01/20/2000 | DE19830247A1 Integrated mobile-phone handsfree kit assembly for combining with a vehicular stereo loudspeaker system |
01/20/2000 | CA2336993A1 Device for obtaining, transmitting, receiving and producing audible signals |
01/19/2000 | EP0973354A2 Optical transmission system including optical restoration |
01/19/2000 | EP0973311A2 Portable data terminal having built-in radio communications device |
01/19/2000 | EP0973310A1 Radiotelephone with a keyboard locking function |
01/19/2000 | EP0973307A2 Distortion compensation system |
01/19/2000 | EP0973287A2 Receiver for receiving text broadcasts which are transmitted in addition to an audio broadcast programme |
01/19/2000 | EP0973286A2 Means for simultaneous reception of a plurality of broadcasting signals |
01/19/2000 | EP0973284A1 A method for determining access time of repeatedly broadcasted objects |
01/19/2000 | EP0973273A1 Method for transmitting in successive time slots |
01/19/2000 | EP0973272A2 Correlation detection apparatus and cdma receiving apparatus |
01/19/2000 | EP0973271A1 Software-defined transceiver for a wireless telecommunications system |
01/19/2000 | EP0973270A2 Variable impedance matching circuit and portable phone employing the same |
01/19/2000 | EP0973269A2 Audio signal noise reduction system |
01/19/2000 | EP0973264A1 Decoding chip streams |
01/19/2000 | EP0973257A2 Surface acoustic wave matched filter |
01/19/2000 | EP0973255A1 90 degree phase shifter and image rejection mixer |
01/19/2000 | EP0973254A1 Local oscillator leak reduction circuit |
01/19/2000 | EP0973228A1 RF equipment with a rod antenna |
01/19/2000 | EP0973138A2 Integrated motion detector in a mobile communications device |
01/19/2000 | EP0973117A2 System for short range wireless data communication to inexpensive endpoints |
01/19/2000 | EP0973088A2 Telecommunication network receiver |
01/19/2000 | EP0972406A1 Method and apparatus for preventing fraudulent access in a conditional access system |
01/19/2000 | EP0972384A2 Transmission method and radio system |
01/19/2000 | EP0972370A1 Method and transmitter device for transmitting data symbols from user signals via a radio interface or a mobile communication system |
01/19/2000 | EP0972360A2 Power control of rf signals with booster module |
01/19/2000 | EP0972354A1 Apparatus and method for reducing magnetic fields in radio telephones |
01/19/2000 | EP0972353A1 Tuning method and transceiver unit |
01/19/2000 | EP0972351A2 Global tuner |
01/19/2000 | EP0972350A1 Multiplex broadcast receiving method and receiver |
01/19/2000 | EP0972349A1 Interference suppression using modal moment estimates |
01/19/2000 | CN2359838Y Double-twisted-line line intercom |
01/19/2000 | CN2359837Y Metal casted housing of radio-frequency amplifying and light emission receiving equipment |
01/19/2000 | CN1242127A Circuit for eliminating external interference signals in code division multiple access mobile phone |
01/19/2000 | CN1242126A Apparatus for eliminating external interference signals in code division multiple access mobile phone and method therefor |
01/19/2000 | CN1241883A Adjustable height ground level serviceable cellsite |
01/19/2000 | CN1241881A Transmitter |
01/19/2000 | CN1241880A Data transmission method and radio system |
01/19/2000 | CN1241870A Information transmitting apparatus and method, information receiving apparatus and method, provider, and broadcasting system |
01/19/2000 | CN1241857A Adaptive acoqisition system for CDMA and spread spectrum systems compensating for frequency offset and noise |
01/19/2000 | CN1241856A Terminal apparatus for digital broadcasting service, its controlling method and broadcaster |
01/19/2000 | CN1241855A Apparatus and method for suppressing frequency interference |
01/19/2000 | CN1241848A Pilot symbols |
01/19/2000 | CN1241846A SIM card incorporated in battery pack of terminal |
01/19/2000 | CN1048606C Method and apparatus for coherent communication in a spread-spectrum communication system |
01/19/2000 | CN1048604C Apparatus and method for operating a phase locked loop frequency synthesizer responsive to radio frequency channel spacing |
01/19/2000 | CN1048603C A method for minimizing a phase error of a transmitter |
01/19/2000 | CN1048602C Embedded transmission line coupler for radio frequency signal amplifiers |
01/19/2000 | CN1048601C Signal processing method between analog driver and power amplifier and interface circuit |
01/19/2000 | CN1048600C Road payment system using radio frequency recognition device, and method for realizing the device thereof |
01/19/2000 | CN1048599C Face image communication device and its communication method |
01/18/2000 | US6016473 Low bit-rate spatial coding method and system |
01/18/2000 | US6016432 Electronic metering equipment system |
01/18/2000 | US6016423 Mobile communicator system |
01/18/2000 | US6016422 Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers |
01/18/2000 | US6016312 Radiotelephone and method for clock calibration for slotted paging mode in a CDMA radiotelephone system |
01/18/2000 | US6016219 Optical protection switching system |
01/18/2000 | US6016170 Double conversion television tuner |
01/18/2000 | US6016158 Object oriented communication network |
01/18/2000 | US6016126 Non-protruding dual-band antenna for communications device |
01/18/2000 | US6016119 Method and apparatus for determining the location of an object which may have an obstructed view of the sky |
01/18/2000 | US6016111 Digital data coding/decoding method and apparatus |
01/18/2000 | US6016108 Antenna tuning control system |
01/18/2000 | CA2199456C Wireless communication device with antenna-activated switch |
01/16/2000 | CA2277745A1 Telecommunications network receiver |
01/16/2000 | CA2274742A1 Transmission process in successive windows |
01/16/2000 | CA2272503A1 A method for determining access time of repeatedly broadcast objects |
01/15/2000 | CA2272235A1 Optical transmission system including optical restoration |
01/13/2000 | WO2000002427A1 Floating electric apparatus |
01/13/2000 | WO2000002398A2 Method for transmitting power control signal in mobile communication system |
01/13/2000 | WO2000002397A2 Device and method for cancelling code interference in a cdma communication system |
01/13/2000 | WO2000002396A2 Method for searching cells in mobile communication system |
01/13/2000 | WO2000002351A1 Method to control a network device in a network comprising several devices |
01/13/2000 | WO2000002344A2 Method and device for wireless control of at least two different devices |
01/13/2000 | WO2000002338A1 Cdma receiving method and circuit |
01/13/2000 | WO2000002337A1 Bandwidth reservation |
01/13/2000 | WO2000002332A2 Method to perform a scheduled action of network devices |
01/13/2000 | WO2000002327A1 Spread spectrum communication system |
01/13/2000 | WO2000002325A1 Receiver synchronizer using chirps sequences |
01/13/2000 | WO2000002324A1 A predistorter |
01/13/2000 | WO2000002323A1 Apparatus and method for implementing a low-noise amplifier |
01/13/2000 | WO2000002299A1 Improved power supply assembly for hand-held communications device |
01/13/2000 | WO1999062190A3 Detection of interfering signal in radio receiver |
01/13/2000 | WO1999057817A3 Code division multiple access transmitter and receiver |
01/13/2000 | DE19830264A1 Protective casing for mobile telephone |
01/13/2000 | DE19829897A1 Vorrichtung zur Wiedergabe von Audiosignalen Apparatus for reproducing audio signals |