| 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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| 10/20/1992 | US5157687 Hand-held bar code reader |
| 10/20/1992 | US5157686 Method and apparatus for the modulation of spread spectrum radio signals |
| 10/20/1992 | US5157358 High speed frequency agile FSK modulator |
| 10/20/1992 | US5157343 Electronic arrangement for receiving a modulated carrier signal |
| 10/20/1992 | US5157289 FET adaptive limiter with high current FET detector |
| 10/20/1992 | CA1309144C Am/fm band selector |
| 10/20/1992 | CA1309143C Apparatus and method for high speed determination of received rf signal strength indicator |
| 10/20/1992 | CA1309142C Two-way radio with voice storage |
| 10/18/1992 | WO1992019065A1 Control apparatus for a mobile radiotelephone |
| 10/16/1992 | WO1992019047A1 Apparatus for filtering and amplifying an oscillator |
| 10/16/1992 | CA2078231A1 Apparatus for filtering and amplifying an oscillator |
| 10/15/1992 | WO1992017989A1 Three-cell wireless communication system |
| 10/15/1992 | WO1992017948A1 Process for transmitting digitized audio signals |
| 10/15/1992 | WO1992017946A2 Generating transmit injection from receiver first and second injections |
| 10/15/1992 | WO1992017945A1 Combined trunked/cellular communication unit |
| 10/15/1992 | WO1992017920A1 Minimum wire interface for multiple accessories |
| 10/15/1992 | WO1992017884A1 High efficiency digital data encoding and decoding apparatus |
| 10/15/1992 | DE4111855A1 Verfahren zum rundfunkmaessigen uebertragen eines digital codierten datenstroms A method for rundfunkmaessigen by wearing a digitally encoded data stream |
| 10/14/1992 | EP0508735A2 Microwave filter |
| 10/14/1992 | EP0508662A2 N-way power combiner/divider |
| 10/14/1992 | EP0508661A1 An FM modulator circuit having separate modulation and channel signal paths |
| 10/14/1992 | EP0508581A2 Compression of signals using a perceptual model |
| 10/14/1992 | EP0508567A2 Improvements in and relating to antennae for a portable telephone equipment |
| 10/14/1992 | EP0508369A1 Method for selecting a broadcasting station in a RDS-receiver |
| 10/14/1992 | EP0507987A1 Operating device of an electronic equipment mounted on a motor vehicle |
| 10/14/1992 | EP0489081A4 Gain/phase compensation for linear amplifier feedback loop |
| 10/14/1992 | EP0435964A4 Energy saving protocol for a communication system |
| 10/14/1992 | EP0284627B1 Digital audio companding and error conditioning |
| 10/14/1992 | CN2119053U Sound controller for microphone and earphone of intercom |
| 10/14/1992 | CN2119052U Automatic multifunciton teller for weather forecast |
| 10/14/1992 | CN1018693B Signal integrity control technique for rf communication system |
| 10/13/1992 | US5155862 Fm receiver having variable if filter |
| 10/13/1992 | US5155861 Radio control transmitter holder |
| 10/13/1992 | US5155772 Data compression system for voice data |
| 10/13/1992 | US5155741 High data rate long pulse compression waveform communication system for M-ary encoding voice messages for air traffic control systems |
| 10/13/1992 | US5155724 Dual mode diplexer/multiplexer |
| 10/13/1992 | US5155659 Hand-held data collection terminal with battery compartment sealing lid and lid-tethering hand strap |
| 10/13/1992 | US5155479 Radio paging system |
| 10/13/1992 | CA2065206A1 Method of manufacturing a high frequency filter and a high frequency filter manufactured according to the method |
| 10/13/1992 | CA1308783C Mobile receiver unit having function for providing information of electric field intensity |
| 10/12/1992 | WO1992022040A1 System for automatic identification of objects or individuals by remote interrogation |
| 10/12/1992 | WO1992019053A1 Process for radio transmission of a digitally coded data stream |
| 10/12/1992 | CA2065816A1 Fm modulator circuit having separate modulation and channel signal paths |
| 10/11/1992 | WO1992019077A1 Reduced noise interference during handoff |
| 10/11/1992 | WO1992019049A1 Radiotelephone message processing for low power operation |
| 10/08/1992 | DE4134650C1 Handset esp. for cordless telephone - has integrated loudspeaker at one end and microphone in pivotable flap at other end |
| 10/08/1992 | DE4111131A1 Verfahren zum uebertragen digitalisierter tonsignale A method for digitized audio signals carry over |
| 10/08/1992 | DE4110704A1 Radio receiver with motion sensor and/or switch, e.g. for board game - can change tuning frequency when motion is detected or switch operated |
| 10/07/1992 | EP0507499A2 Orthogonal transform coding apparatus for digital audio signals |
| 10/07/1992 | EP0507379A1 Protection arrangement for an optical transmitter/receiver device |
| 10/07/1992 | EP0507139A2 Method for adjacent channel rejection at reception of FM-modulated signals |
| 10/07/1992 | EP0507096A2 A RDS receiver |
| 10/07/1992 | EP0507087A2 Method and apparatus for correlative digital signal processing using systolic arithmetic circuit |
| 10/07/1992 | EP0506908A1 Fast phase shift adjusting method and device for linear transmitter |
| 10/07/1992 | EP0506708A1 Method and apparatus for random fm noise cancellation. |
| 10/07/1992 | CN1065168A Transmission system and receiver to be used in transmission system |
| 10/06/1992 | US5153583 Transponder |
| 10/06/1992 | CA1308445C Interference suppression for transmitted signals and demodulation of vestigial sideband signals |
| 10/06/1992 | CA1308444C Fmx stereophonic receiver |
| 10/06/1992 | CA1308362C Noise suppression system |
| 10/03/1992 | CA2064648C Protection arrangement for an optical transmitter/receiver device |
| 10/03/1992 | CA2064646A1 Automatic number assignment module selection for mobile telephone |
| 10/02/1992 | WO1992017944A1 Apparatus and method of automatic gain control in a receiver |
| 10/01/1992 | WO1992017003A1 Communication device with isdn interface |
| 10/01/1992 | WO1992017002A1 Electronic billboard and vehicle traffic control communication system |
| 10/01/1992 | DE4110775A1 CB radio with reduced interference between closely spaced stations - controls operating voltage or operating current to regulate power output |
| 09/30/1992 | WO1993019542A2 Process for transmitting or storing digitalized, multi-channel audio signals |
| 09/30/1992 | WO1992017942A1 Method of encoding digital signals |
| 09/30/1992 | EP0506535A1 Method and system for processing of pre-echos of a frequency transform coded digital audio signal |
| 09/30/1992 | EP0506443A2 Car-mounted booster for plug-in connection with mobile telephone set |
| 09/30/1992 | EP0506394A2 Coding apparatus for digital signals |
| 09/30/1992 | EP0506055A2 An emphasis apparatus |
| 09/30/1992 | EP0505905A1 Integrated circuit transponder with coil antenna in a pneumatic tire for use in tire identification |
| 09/30/1992 | EP0505867A2 Method for adjacent channel rejection at reception of FM modulated transmitters |
| 09/30/1992 | EP0505765A2 Integrated electronic warfare antenna receiver |
| 09/30/1992 | EP0505716A2 Method for operating a high frequency transmitter according to a frequency hopping method |
| 09/30/1992 | EP0485453A4 Radio receiver frequency control system |
| 09/30/1992 | CN2117681U Miniature earplug type radio |
| 09/30/1992 | CN2117646U Radio recorder beneficial for health of students |
| 09/30/1992 | CA2083709A1 Coding apparatus or method for digital audio signal |
| 09/29/1992 | WO1992017947A1 Identification apparatus and method |
| 09/29/1992 | US5152006 Receiver controller method and apparatus |
| 09/29/1992 | US5152004 Procedure for forming low power levels in a radio telephone transmitter |
| 09/29/1992 | US5151941 Digital signal encoding apparatus |
| 09/29/1992 | US5151922 Variable speaker muting based on received data |
| 09/29/1992 | US5151921 Spread spectrum communication device |
| 09/29/1992 | US5151920 Radio LAN station with improved frame delimiter detection in a spread spectrum environment |
| 09/29/1992 | US5151680 Speaker driver |
| 09/29/1992 | US5151612 Circuit for eliminating digital noise or short pulses utilizing set/reset shift register |
| 09/29/1992 | CA2103910A1 Identification apparatus and method |
| 09/28/1992 | CA2063954A1 Method and system for processing the preechos of an audio-digital signal coded by frequency transformation |
| 09/28/1992 | CA2054568A1 Integrated circuit transponder with coil antenna in a pneumatic tire for use in tire identification |
| 09/24/1992 | DE4208528A1 Remote control system for audio-video equipment - has remote control signal transmitter emitting equipment activation signal setting up type of operation required |
| 09/23/1992 | EP0505284A1 Satellite telecommunication installation applicable to several coverage zones |
| 09/23/1992 | EP0505072A2 Signal strength indicator for receiver |
| 09/23/1992 | EP0505038A1 Improvements relating to television receivers |
| 09/23/1992 | EP0505006A2 Local communication bus system and apparatus for use in such a system |
| 09/23/1992 | EP0504988A2 Circuit arrangement to control the frequency response of a digital audio signal |
| 09/23/1992 | EP0504737A2 FM car radio with diversity combiner |
| 09/22/1992 | US5150401 Retrofittable encryption/decryption apparatus using modified frequency modulation |