| 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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| 06/22/1994 | CA2085959A1 Method of common transfer of digital, audio and control data on a common bus line; bus system for implementing the method and interface for application in the method |
| 06/21/1994 | US5323457 Circuit for suppressing white noise in received voice |
| 06/21/1994 | US5323447 Apparatus and method for modifying a frequency hopping sequence of a cordless telephone operating in a frequency hopping system |
| 06/21/1994 | US5323422 Adaptive receiver apparatus |
| 06/21/1994 | US5323421 Method and apparatus of estimating channel quality in a receiver |
| 06/21/1994 | US5323419 Spread spectrum communication device |
| 06/21/1994 | US5323418 Code division multiple access (CDMA) inbound messaging system utilizing interference cancellation to recover inbound messages |
| 06/21/1994 | US5323396 Digital transmission system, transmitter and receiver for use in the transmission system |
| 06/21/1994 | US5323337 Signal detector employing mean energy and variance of energy content comparison for noise detection |
| 06/21/1994 | US5323064 Radio frequency signal frequency converter |
| 06/19/1994 | CA2085768A1 Hand model satellite receiver-setup apparatus |
| 06/18/1994 | CA2085638A1 Solar powered amp |
| 06/16/1994 | DE4313733A1 Receiver for high frequency radiation - has superposition device with two inputs, electrically conducting grids, Mach=Zehnder interferometer and detector |
| 06/16/1994 | DE4242384A1 Homodyne receiver for amplitude-sampled radio time signals - has code-selective switchable time constant in integrating circuit sepg. DC component for gain control of input amplifiers |
| 06/16/1994 | DE4241857A1 Radio receiver with additional data decoder - accepts telephone number data and decodes for entry into telephone unit memory |
| 06/16/1994 | DE4241215A1 Supplying current to HF receiver from prim. or sec. cell battery - controlling PLL frequency processing circuit using control signal provided by squelch circuit |
| 06/15/1994 | EP0601841A2 Device for reducing electromagnetic interference in recording and/or reproducing apparatus with radio receiving function |
| 06/15/1994 | EP0601711A1 A battery pack |
| 06/15/1994 | EP0601437A1 Method for compatible transmission and/or decoding and storage of an auxiliary signal |
| 06/15/1994 | EP0601410A1 Bias control circuit for radio-frequency power amplifier |
| 06/15/1994 | EP0601336A1 Time-division-duplex transmitter-receiver |
| 06/15/1994 | EP0601111A1 Burst mode receiver control |
| 06/15/1994 | EP0600960A1 Frequency-modulated transceiver. |
| 06/15/1994 | EP0391972B1 Cucumber mosaic virus coat protein gene |
| 06/15/1994 | CN2169250Y Necklace radio |
| 06/15/1994 | CN2169249Y Special charger and connector for movable telephone |
| 06/15/1994 | CN2169248Y Movable telephone antenna |
| 06/15/1994 | CN2169247Y Improved high frequency emitter |
| 06/15/1994 | CN2168586Y Alarm first aid box with a receiver |
| 06/15/1994 | CN1088033A Method and apparatus for communicating variable length messages between register modeled radio devices |
| 06/15/1994 | CN1025095C Stability detection method and apparatus for tuning system |
| 06/14/1994 | US5321852 Circuit and method for converting a radio frequency signal into a baseband signal |
| 06/14/1994 | US5321848 Drive-up station full duplex communication system and method of using same |
| 06/14/1994 | US5321847 Apparatus and method for detecting intermodulation distortion in a radio frequency receiver |
| 06/14/1994 | US5321846 Signal transmission system with quicker response and with parallel and serial outputs |
| 06/14/1994 | US5321738 Switch apparatus of a portable cordless telephone using an antenna |
| 06/14/1994 | US5321729 Method for transmitting a signal |
| 06/14/1994 | US5321721 Spread spectrum communication system and transmitter-receiver |
| 06/14/1994 | US5321671 Radio receiver with tape deck having interrupt capability |
| 06/14/1994 | US5320561 Connector for providing programming, testing, and power signals |
| 06/09/1994 | WO1994013107A1 Advanced set top terminal for cable television delivery systems |
| 06/09/1994 | WO1994013089A1 Radio system |
| 06/09/1994 | WO1994013088A1 Housing assembly for a wireless communication device |
| 06/09/1994 | WO1994013079A1 Method and apparatus of controlling processing devices during power transition |
| 06/09/1994 | WO1994013066A1 Dot product circuit for multipath receivers |
| 06/09/1994 | WO1994013064A1 Automotive radio employing multipath correction strategy based on vehicle speed |
| 06/09/1994 | WO1994012921A1 Digital voltage regulator having capacitance selector |
| 06/09/1994 | DE4313734A1 Detector device for microwave receiver - with incident radiation directed onto detector-demodulator via dielectric focussing element |
| 06/09/1994 | CA2345161A1 Advanced set top terminal for cable television delivery systems |
| 06/08/1994 | EP0600713A2 Communication method and system |
| 06/08/1994 | EP0600710A2 Spread spectrum receiving apparatus |
| 06/08/1994 | EP0600678A1 Casing for a miniature portable apparatus |
| 06/08/1994 | EP0600642A2 Method and apparatus for reducing correlated errors in subband coding systems with quantizers |
| 06/08/1994 | EP0600641A1 Adaptive canceler for contiguous band filtering |
| 06/08/1994 | EP0600515A2 Transmission control circuit for use in TDMA communication device |
| 06/08/1994 | EP0600252A1 RF power amplifier control |
| 06/08/1994 | EP0600242A2 Linear array lateral motion compensation method |
| 06/08/1994 | EP0600164A1 Method for the improvement of transmission properties of an electro-acoustic device |
| 06/08/1994 | EP0600043A1 System for short-range transmission of signals over the air using a high frequency carrier |
| 06/08/1994 | EP0599963A1 A method of encoding and decoding a glassy alloy strip to be used as an identification marker. |
| 06/08/1994 | CN2168366Y Vertical radio receiver for blind person and normal person |
| 06/08/1994 | CN2168365Y Telecontrolled ejector with hanging ring |
| 06/08/1994 | CN1024976C Converting and voltage compensation of receiver |
| 06/07/1994 | US5319805 Concealed radio transmitter in a tapemeasure |
| 06/07/1994 | US5319804 Transmitter with nonlinearity correction circuits |
| 06/07/1994 | US5319803 Steering wheel assembly with communication keyboard |
| 06/07/1994 | US5319801 Seamless frequency hopping system |
| 06/07/1994 | US5319800 Switched capacitor load compensator |
| 06/07/1994 | US5319799 Signal oscillation method for time-division duplex radio transceiver and apparatus using the same |
| 06/07/1994 | US5319798 Radio transceiver having PLL synthesizer |
| 06/07/1994 | US5319735 Embedded signalling |
| 06/07/1994 | US5319716 Wireless CD/automobile radio adapter |
| 06/07/1994 | US5319675 Quadrature modulation circuit |
| 06/07/1994 | US5319672 Spread spectrum communication system |
| 06/07/1994 | US5319635 Electronic duplex communication system |
| 06/07/1994 | US5319573 Method and apparatus for noise burst detection in a signal processor |
| 06/01/1994 | EP0599825A2 Digital transmission system for transmitting an additional signal such as a surround signal |
| 06/01/1994 | EP0599824A2 Intensity-stereo encoding and decoding in a transmission system |
| 06/01/1994 | EP0599659A1 Booster for use in combination with radio apparatus |
| 06/01/1994 | EP0599414A2 A direct conversion receiver |
| 06/01/1994 | EP0599409A2 A direct conversion receiver |
| 06/01/1994 | EP0599399A1 An apparatus with RSSI and an electronic circuit including a logarithmic detector |
| 06/01/1994 | EP0599391A2 Spread spectrum communication system |
| 06/01/1994 | EP0599315A2 Apparatus and method for orthogonally transforming a digital information signal with scale down to prevent processing overflow |
| 06/01/1994 | EP0599311A2 Clock recovery circuit |
| 06/01/1994 | EP0599249A2 Switching network having improved synthesizer routing architecture |
| 06/01/1994 | EP0599244A2 Portable electronic device |
| 06/01/1994 | EP0599132A2 System for processing an audio signal |
| 06/01/1994 | EP0598745A1 Modem |
| 06/01/1994 | EP0293464B1 Process for transmitting and/or evaluating on the receiver side information inside a radio signal |
| 06/01/1994 | DE4333594A1 Integrated circuit card terminal for controlling access to authorised person via telephone |
| 06/01/1994 | DE4310230A1 Portable radiotelephone subscriber terminal - has separate power and function modules, each with own transceiver |
| 06/01/1994 | CN2167483Y Pocket electric communication receiver |
| 05/31/1994 | US5317595 Rapidly adaptable channel equalizer |
| 05/31/1994 | US5317522 Method and apparatus for noise burst detection in a signal processor |
| 05/31/1994 | US5317470 Control system including a switching circuit for ensuring proper operation when operating power is removed from a portion of the control system |
| 05/31/1994 | US5317309 Dual mode electronic identification system |
| 05/31/1994 | CA2002202C Portable communication device |
| 05/28/1994 | CA2110018A1 Radio-frequency output level compensating circuit of portable radio transceiver |
| 05/27/1994 | CA2110150A1 Booster for use in combination with radio apparatus |