| 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) |
|---|
| 08/24/1993 | US5239127 Electrical interconnect apparatus |
| 08/24/1993 | CA2031866C Mobile radio communication apparatus |
| 08/24/1993 | CA2003160C Signal distinction circuit |
| 08/22/1993 | CA2089589A1 Transmission signal level control device for radio transmitter |
| 08/21/1993 | CA2090067A1 Remote control and signaling system |
| 08/19/1993 | WO1993016561A2 Channel selection switching |
| 08/19/1993 | WO1993016530A1 Radio device |
| 08/19/1993 | WO1993016527A1 Method and apparatus for ghost cancelling and/or equalizing |
| 08/19/1993 | WO1993016498A1 Channel selection switching |
| 08/19/1993 | WO1993016396A1 Transmit/receive module |
| 08/19/1993 | DE4302015A1 Programmable remote operational unit for home entertainment appts. - gives distinctively coloured signals denoting learning mode and storage or loss of received IR signal |
| 08/19/1993 | DE4204473A1 Recording and reproducing terminal appts. for audio information network - enables recorded audio signals to be transmitted over wire or fibre for reception at distant terminal |
| 08/18/1993 | EP0556010A1 Diversity reception arrangement |
| 08/18/1993 | EP0555992A1 Data adapter for a radiotelephone |
| 08/18/1993 | EP0555689A2 Arrangement for downconverting microwave signals |
| 08/18/1993 | EP0555304A1 Multichannel operation of rds |
| 08/18/1993 | EP0555289A1 Channel equalisation in particular for fading channels. |
| 08/18/1993 | EP0555239A1 Controlling clipping in a microwave power amplifier. |
| 08/18/1993 | CN2140591Y Wired transceiver |
| 08/18/1993 | CN1075386A Arrangement for downconverting microwave signals |
| 08/17/1993 | US5237587 Pseudo-noise modem and related digital correlation method |
| 08/17/1993 | US5237586 Rake receiver with selective ray combining |
| 08/17/1993 | US5237570 Prioritized data transfer method and apparatus for a radiotelephone peripheral |
| 08/17/1993 | US5237443 Fine adjustment tuning apparatus for TV and a method of storing tuning data |
| 08/17/1993 | US5237429 Facsimile interface device for radios |
| 08/17/1993 | US5237332 Receiver distortion correction circuit and method |
| 08/17/1993 | US5237327 Wireless, hand-held |
| 08/17/1993 | US5237319 Remote control device with learning function |
| 08/17/1993 | CA1321430C Data path protection |
| 08/17/1993 | CA1321415C Non-linear squelch circuit for ieee-802.3 protocol |
| 08/12/1993 | DE4300848A1 Car telephone system connected to car radio - transmits telephone signals to car radio for replay over loudspeaker and display on radio display |
| 08/12/1993 | DE4203932A1 Sende-/empfangsmodul Transmitting / receiving module |
| 08/12/1993 | DE4203176A1 Channel selection circuit esp. for telecommunication satellite - has ring of switches interconnected with bridging by one out of every two four-position rotary switches |
| 08/12/1993 | DE4203175A1 Channel selection circuit esp. for telecommunication satellite - has ring of switches interconnected with bridging by one out of every three four-position rotary switches |
| 08/12/1993 | DE4203174A1 Channel selection circuit esp. for telecommunication satellite - has ring of switches interconnected with bridging by one out of every three four-position rotary switches |
| 08/11/1993 | EP0555132A1 Wide band superheterodyne receiver |
| 08/11/1993 | EP0555089A2 Spread spectrum communication system |
| 08/11/1993 | EP0554934A2 Transmission system, and transmitter and receiver to be used in the transmission system |
| 08/11/1993 | EP0554386A1 Receiver with battery saver. |
| 08/11/1993 | EP0554349A1 Carry case assembly for a portable electrical device |
| 08/11/1993 | EP0515624A4 Spread spectrum multipath receiver apparatus and method |
| 08/11/1993 | EP0500775A4 Soft handoff in a cdma cellular telephone system |
| 08/11/1993 | EP0486667A4 Communication signal having a time domain pilot component |
| 08/11/1993 | EP0476129A4 Communication system |
| 08/10/1993 | US5235671 Dynamic bit allocation subband excited transform coding method and apparatus |
| 08/10/1993 | US5235647 Digital transmission system, an apparatus for recording and/or reproducing, and a transmitter and a receiver for use in the transmission system |
| 08/10/1993 | US5235616 Bidirectional data transmission system |
| 08/10/1993 | US5235614 Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system |
| 08/10/1993 | US5235613 Frequency hopping method and apparatus |
| 08/10/1993 | US5235612 Method and apparatus for cancelling spread-spectrum noise |
| 08/10/1993 | US5235568 System and the control method thereof for compact disk changer player and radio receiver |
| 08/10/1993 | US5235561 Wristwatch radiotelephone |
| 08/10/1993 | US5235560 Wristwatch radiotelephone |
| 08/10/1993 | US5235289 Transmission power amplifier device |
| 08/08/1993 | CA2084474A1 Data transmission in a radiotelephone system |
| 08/06/1993 | CA2088752A1 Power control for radio frequency amplifier having known periods of zero output power |
| 08/05/1993 | WO1993015568A1 Process for generating a signal indicating adjacent channel interference |
| 08/05/1993 | WO1993015562A1 Error protection in a subband coder |
| 08/05/1993 | WO1993015561A1 Improved transponder for proximity identification system |
| 08/05/1993 | WO1993015560A1 Balanced mixer circuit |
| 08/05/1993 | WO1993015559A1 Bit error rate controlled squelch |
| 08/05/1993 | WO1993015502A1 Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors |
| 08/05/1993 | WO1993015488A1 Pre-programmed universal remote control method and apparatus with learning capability |
| 08/05/1993 | DE4303048A1 Alarm recognition apparatus for redundant layout circuit in radio equipment - has input circuits delaying alarm recognition signals when circuits are switched to be operational systems |
| 08/05/1993 | DE4202654A1 Error detection in digital transmission of audio signals - identifying erroneous jumps in level of signal by deviation from value in statistically more probable sequence |
| 08/05/1993 | DE4202383A1 Hand-held transceiver, e.g. cordless telephone - has electronic circuitry enclosed in banana-shaped frame which supports sliding housings of microphone and earphone |
| 08/04/1993 | EP0554081A1 Apparatus and method for data compression |
| 08/04/1993 | EP0553873A1 Cross polarization interference compensating device comprising decision feedback cross polarization interference cancellers |
| 08/04/1993 | EP0553810A1 Vehicle mounted adaptor for a portable radio transceiver |
| 08/04/1993 | EP0553751A1 High gain portable radio selective call receiver using a microstrip construction for inter-board connections |
| 08/04/1993 | EP0553538A2 Fading and random pattern error protection method for dynamic bit allocation sub-band coding |
| 08/04/1993 | EP0553497A2 Frequency down conversion for a two-handset cordless telephone system using offset intermediate frequencies |
| 08/04/1993 | EP0553289A1 Digital audio broadcasting system |
| 08/04/1993 | EP0553094A1 Device for information transmission. |
| 08/04/1993 | EP0542894A4 Novel spread spectrum codec apparatus and method |
| 08/04/1993 | EP0494990B1 Process for transmitting a signal |
| 08/04/1993 | EP0485390B1 Process for transmitting a signal |
| 08/04/1993 | CN2139757Y Radio with timing switch |
| 08/04/1993 | CN2139756Y Portable multifunctional radio with alarm |
| 08/04/1993 | CN2139755Y Portable emission switch for communication helmet |
| 08/04/1993 | CN1075037A Power saving method of pager |
| 08/04/1993 | CN1075036A Offset down conversion for a two-handset cordless telephone system |
| 08/04/1993 | CA2084441A1 Data terminal battery saver arrangement |
| 08/03/1993 | US5233646 Telephone-operated stereo shut-off device |
| 08/03/1993 | US5233645 Automatic power breaking circuits for communication equipments |
| 08/03/1993 | US5233632 Communication system receiver apparatus and method for fast carrier acquisition |
| 08/03/1993 | US5233626 Repeater diversity spread spectrum communication system |
| 08/03/1993 | CA1321001C Transmission line switching system |
| 08/03/1993 | CA1320992C Portable pager receiver with message display function |
| 07/30/1993 | CA2083536A1 Power-conserving automatic bias control for linear amplifier in radio-telephone transmitter |
| 07/29/1993 | DE4300705A1 Portable telephone with conducting plate under antenna - has high signal=to=noise ratio due to prevention of interference signal with pseudo-ground-plane |
| 07/29/1993 | DE4202140A1 Digital audio signal transmission using sub-band coding - inserting extra fault protection signal, or fault protection bit into data frame |
| 07/29/1993 | DE4202009A1 Transceiver broad-band antenna for radio identification - has phase-shifter connected to resonant-circuit capacitor and inductors wound on ellipsoid core |
| 07/29/1993 | DE4201696A1 Information-selection-text decoder for receiving and displaying text signals - can be used separately or incorporated in existing radio receivers to decode information transmitted along usual radio broadcast |
| 07/28/1993 | EP0552975A2 A pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators |
| 07/28/1993 | EP0552889A1 Digital signal hardware protection switching |
| 07/28/1993 | EP0552727A1 Circuit for suppressing interfering signals occurring in the received signal in a radio transmission system |
| 07/28/1993 | EP0552692A1 System for synchronizing mutually interfering signals in digital radio transmissions with frequency re-use |
| 07/28/1993 | EP0552642A1 Combined radio transmitter and receiver with PLL circuit |
| 07/28/1993 | EP0552494A2 Method and circuit for offset correction in a TDMA radio receiver |