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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06/16/1998 | US5768691 Antenna switching circuits for radio telephones |
06/16/1998 | US5768690 Radio communication device with improved antenna duplexing apparatus |
06/16/1998 | US5768426 Graphics processing system employing embedded code signals |
06/16/1998 | US5768371 Belt holder with auxiliary battery |
06/16/1998 | US5768326 For use in a digital broadcasting receiver |
06/16/1998 | US5768307 Coherent demodulation with decision-directed channel estimation for digital communication |
06/16/1998 | US5768306 Sliding correlator used in CDMA systems to establish initial synchronization |
06/16/1998 | US5768305 Identification of start and end points of transmitted data in spread spectrum communication systems |
06/16/1998 | US5768281 Ancillary data processing circuit for audio decoding system |
06/16/1998 | US5768269 Apparatus and method for establishing frame synchronization in distributed digital data communication systems |
06/16/1998 | US5768254 Multiple access cellular communication with signal cancellation to reduce co-channel interference |
06/16/1998 | US5768224 AV system and method of establishing a connection setting for AV component devices |
06/16/1998 | US5767792 Method for calibrating a temperature sensing transponder |
06/16/1998 | US5767791 Low-power circuit and method for providing rapid frequency lock in a wireless communications device |
06/16/1998 | US5767789 Communication channels through electrically conducting enclosures via frequency selective windows |
06/16/1998 | US5767755 Radio frequency power combiner |
06/16/1998 | US5767726 Four terminal RF mixer device |
06/16/1998 | CA2109576C Method and apparatus for determining signal transmission quality levels of a transmitted signal |
06/16/1998 | CA2085128C Method for broadcasting a digitally coded stream of data |
06/16/1998 | CA2083946C Battery saving method and apparatus for providing selective receiver power switching |
06/11/1998 | WO1998025424A2 Mobile telephone |
06/11/1998 | WO1998025370A1 Method for correcting errors from a fading signal in a frequency hopped spread spectrum communication system |
06/11/1998 | WO1998025369A2 Method for correcting errors from jamming and fading signals in a frequency hopped spread spectrum communication system |
06/11/1998 | WO1998025357A1 Radiocommunication device of transmission diversity system |
06/11/1998 | WO1998025354A1 Method for correcting errors from a jamming signal in a frequency hopped spread spectrum communication system |
06/11/1998 | WO1998025353A2 Arrangement in a communication system |
06/11/1998 | WO1998025351A2 Method for calculating impulse response, and receiver |
06/11/1998 | WO1998025324A1 Method for a transceiver to select a channel |
06/11/1998 | WO1998025323A1 Dual-band antenna coupler for a portable radiotelephone |
06/11/1998 | WO1998025322A1 Antenna adapter |
06/11/1998 | WO1998025248A1 Rfid system in communication with vehicle on-board computer |
06/11/1998 | WO1998025158A1 Method and apparatus for determining time for gps receivers |
06/11/1998 | WO1998025157A2 An improved gps receiver utilizing a communication link |
06/11/1998 | WO1998017026A3 Method and arrangement for calculating correlation |
06/11/1998 | WO1998012825A3 Method for storing information on a chip card and device, especially a car radio, for implementing said method |
06/10/1998 | EP0847193A1 Intermediate frequency amplifier circuit for radiowave receiver |
06/10/1998 | EP0847155A2 Audio decoding device and signal processing device |
06/10/1998 | EP0847153A2 Method and apparatus for measuring waveform quality of CDMA signal |
06/10/1998 | EP0847144A2 Receiver with low stand by current |
06/10/1998 | EP0847135A2 High frequency variable gain amplifier device |
06/10/1998 | EP0847099A1 Antenna assembly |
06/10/1998 | EP0846999A1 Portable information instrument having a display cover protecting a display screen |
06/10/1998 | EP0846407A1 Telephone radiation shield |
06/10/1998 | EP0846405A1 Process for reducing redundancy during the coding of multichannel signals and device for decoding redundancy-reduced multichannel signals |
06/10/1998 | EP0846377A1 Method and system for non-orthogonal noise energy based gain control |
06/10/1998 | EP0846376A1 Method and apparatus for rate determination in a communication system |
06/10/1998 | EP0846375A1 Process and device for the scalable coding of audio signals |
06/10/1998 | EP0846368A1 An apparatus and method for providing a flexible ramp up and ramp down of the sections of a radio in a wireless local area network |
06/10/1998 | EP0846363A1 Accumulator device for an electrical and/or electronic apparatus and telecommunication terminal comprising such a device |
06/10/1998 | EP0846273A1 Radiofrequency interface device for a transponder |
06/10/1998 | EP0586656B1 Communications system with extended channels |
06/10/1998 | DE19717546A1 Decoding method for CDMA transmission system |
06/10/1998 | DE19651095A1 Digital multi-channel transmission method e.g. for audio signals |
06/10/1998 | DE19650420A1 Removable partial shielding arrangement for hand-carried transceiver |
06/10/1998 | CN2283949Y Call appliance with radio function |
06/10/1998 | CN1184573A Interference reduction in TDM -communication /computing device |
06/10/1998 | CN1184563A An antenna device with two radiating elements having an adjustable phase difference between the radiating elements |
06/10/1998 | CN1184537A Method and apparatus for data encoding and communication over noisy media |
06/10/1998 | CN1184389A Mobile communication terminal having initial frequency acquisition mechanism |
06/10/1998 | CN1184384A Mask device |
06/10/1998 | CN1184383A Personal communicator |
06/09/1998 | US5765126 Method and apparatus for variable length encoding of separated tone and noise characteristic components of an acoustic signal |
06/09/1998 | US5765114 Communication apparatus with reduced redundant data receipt and method for receiving data |
06/09/1998 | US5765113 Method and apparatus for avoiding desensitization of a radio frequency receiver |
06/09/1998 | US5765104 Apparatus and method for controlling an intermittent reception time in radio equipment |
06/09/1998 | US5765099 Distribution of radio-frequency signals through low bandwidth infrastructures |
06/09/1998 | US5764704 DSP implementation of a cellular base station receiver |
06/09/1998 | US5764700 Digital radio link system and radio link terminal |
06/09/1998 | US5764698 Method in a data processing system |
06/09/1998 | US5764693 Wireless radio modem with minimal inter-device RF interference |
06/09/1998 | US5764691 Intelligent power management for a programmable matched filter |
06/09/1998 | US5764690 Apparatus for despreading and demodulating a burst CDMA signal |
06/09/1998 | US5764688 Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit |
06/09/1998 | US5764685 Method of setting spread code series and communication apparatus using spread spectrum communication method |
06/09/1998 | US5764630 Forward link carrier recovery in an OCDMA spread spectrum communication system without a pilot tone |
06/09/1998 | US5764492 Radio device with radio shielding and method of manufacture |
06/09/1998 | US5764395 Infrared spatial communication system capable of reducing a processing amount of data communication devices during communication |
06/09/1998 | US5764305 Digital signal processing apparatus and method |
06/09/1998 | US5764208 Reset scheme for spatial light modulators |
06/09/1998 | US5764193 Diversity antenna for radio communications |
06/09/1998 | US5764171 Quadrature signal conversion device |
06/09/1998 | US5762304 Beeper holder |
06/04/1998 | WO1998024193A1 Receiving device for a radio communication system for the reception of subscriber signals via an air interface |
06/04/1998 | WO1998024191A1 Shared wave removing device |
06/04/1998 | WO1998024190A1 Method and apparatus for transmitting and receiving information as a power hopped direct sequence spread spectrum signal |
06/04/1998 | WO1998024189A1 Selective filtering for co-channel interference reduction |
06/04/1998 | WO1998017010A3 Multiple band receiver |
06/04/1998 | DE19753460A1 Transmission and reception changeover method |
06/04/1998 | DE19750933A1 Readiness mode switching unit with low signal attenuation |
06/04/1998 | DE19649069A1 Remote controller for consumer electronics apparatus |
06/04/1998 | DE19648910A1 Broadcasting receiver especially for car radio |
06/03/1998 | EP0845893A2 Telephone data input device |
06/03/1998 | EP0845885A2 Modulated signal generation apparatus for a digital communication system incorporating fading simulator |
06/03/1998 | EP0845879A2 Optical switching unit, particularly for switching to alternative components in optical transmission systems |
06/03/1998 | EP0845872A2 Transmission of wideband signals in a net with stationary signal interference |
06/03/1998 | EP0845871A2 Intermediate frequency amplifier circuit for use in receive and transmit mode |
06/03/1998 | EP0845869A2 Communications system for a combat vehicle |
06/03/1998 | EP0845860A1 Mobile communication terminal having an initial frequency acquisition mechanism |
06/03/1998 | EP0845857A2 Amplifier system |
06/03/1998 | EP0845691A1 Optical cable with tubular metal core |