Patents
Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050)
11/1992
11/25/1992EP0515214A1 Radio system with measurement and adjustment of transfer delay
11/18/1992CN1066360A Automatic frequency selection in bi-directional cable televison system
11/18/1992CN1066351A Power line frequency-amplitude cable station
11/12/1992DE4219662A1 Recorder and playback appts. for radio traffic messages - stores messages in semiconductor memory for later access by driver
11/10/1992US5162905 Automatic commercial message recognition and monitoring device
11/10/1992US5162790 Multiple transmitter paging system
11/10/1992CA1309886C2 Electrical socket device for use in a closed-loop, programmable power and communication system
11/05/1992DE4113918A1 Broadcasting information transmission system providing time details of programmes - has identification data digitally processed by receiver to indicate remaining time and start time details of programmes in progress
11/03/1992US5161251 Apparatus and methods for providing text information identifying audio program selections
10/1992
10/29/1992WO1992019093A1 Radio receiver, especially vehicle radio
10/28/1992EP0510914A2 RDS receiver
10/28/1992EP0510848A2 Continuous reception of program channels by a mobile receiver unit
10/28/1992EP0510247A2 Method and apparatus for transmitting digital audio signals from audio studios to the individual transmitting stations of a terrestrial broadcasting network
10/24/1992WO1992019073A1 Broadcast verification system
10/24/1992CA2106486A1 Broadcast verification system
10/24/1992CA2065659A1 Continuous reception of program channels by a mobile receiver unit
10/22/1992DE4112828A1 Rundfunkempfaenger, insbesondere fahrzeugempfaenger Rundfunkempfaenger, especially fahrzeugempfaenger
10/21/1992EP0509725A2 Reducing audible noise in stereo receiving
10/21/1992EP0497769A4 System with compact spectrum
10/21/1992CN1065564A Automatic remote-control device for broadcast
10/15/1992WO1992017948A1 Process for transmitting digitized audio signals
10/15/1992DE4111855A1 Verfahren zum rundfunkmaessigen uebertragen eines digital codierten datenstroms A method for rundfunkmaessigen by wearing a digitally encoded data stream
10/14/1992EP0508369A1 Method for selecting a broadcasting station in a RDS-receiver
10/13/1992US5155859 Simulcast transmission system having automatic audio equalization
10/13/1992US5155769 Discrete parallel path modulation multiplexer
10/13/1992US5155590 System for data channel level control
10/12/1992WO1992019053A1 Process for radio transmission of a digitally coded data stream
10/08/1992DE4111131A1 Verfahren zum uebertragen digitalisierter tonsignale A method for digitized audio signals carry over
10/07/1992EP0507530A2 Radio data system receiver
10/07/1992EP0506677A1 Reception aerial process and system
10/06/1992US5153723 HDTV audio subsystem with timing characteristics compatible with video subsystem
10/01/1992WO1992017009A1 Improved digital system for recording and reproducing radiophonic advertisements
09/1992
09/30/1992WO1993019542A2 Process for transmitting or storing digitalized, multi-channel audio signals
09/29/1992US5151939 Adaptive audio processor for am stereo signals
09/29/1992US5151782 Control system for satellite delivered pay-per-view television system
09/22/1992US5150113 Method and apparatus for transmitting an information signal together with data packets of related and unrelated textual information and receiving apparatus therefor
09/22/1992US5150070 Demodulator for biphase, suppressed-carrier psk signals
09/20/1992WO1992017010A1 Automatic frequency selection in a bi-directional cable television system
09/20/1992CA2106599A1 Automatic frequency selection in a bi-directional cable television system
09/16/1992EP0504018A1 Improvement to isofrequential radio networks
09/16/1992EP0503202A2 Method of controlling RDS receiver
09/16/1992EP0502977A1 Satellite based simulcast paging system
09/16/1992EP0438463A4 High data rate simulcast communication system
09/16/1992CN1064576A High-low voltage transmission system for power network broadcast
09/15/1992CA1307560C Method of generating an amplitude-modulated isb transmission signaland apparatus for carrying out the method
09/10/1992DE4107368A1 Car radio with traffic situation updating function - has traffic signal decoder coupled to display device with temporary storage of traffic announcement in digital form
09/08/1992US5146612 Technique for using a subcarrier frequency of a radio station to transmit, receive and display a message together with audio reproduction of the radio program
09/02/1992CN2114930U Induction type broadcasting wave carrier
09/01/1992US5144548 Routing switcher
08/1992
08/26/1992EP0499608A1 Radio receiver, in particular for vehicles.
08/25/1992US5142692 Transmitting information with cut and flip spectrum
08/18/1992CA1306502C Simulcast broadcasting system and method
08/13/1992DE4103064A1 Radio data signal receiver esp. for car
08/12/1992EP0497769A1 System with compact spectrum.
08/12/1992EP0298959B1 Fm receiver with noise suppression during rayleigh faded received signals
08/07/1992WO1992014312A1 Am-fm combined stereo receiver
08/07/1992WO1992014311A1 Am-fm combined stereo receiver
08/06/1992WO1992013417A1 Simulcast transmission system having predetermined launch times
08/06/1992WO1992013403A1 Procedure for the identification of transmitter or region in common-wave broadcasting networks
08/06/1992DE4103061A1 Radio data signal receiver esp. for car
08/06/1992DE4102408A1 Verfahren zur sender- bzw. regionalkennung in gleichwellennetzen Method for station- or regional recognition in the same wave networks
08/05/1992EP0497449A2 Information transmission system
08/05/1992EP0497116A2 RDS broadcast receiver
08/05/1992EP0497115A2 RDS broadcast receiver
08/05/1992EP0497073A2 Wide-band domestic reconfigurable multipoint cable network for simultaneous and/or alternative distribution of several types of signals
08/05/1992EP0497035A2 Simulcast automatic alignment system
08/04/1992US5136411 Dynamically responsive CATV system with shared fiber optic link
08/04/1992CA1306053C Closed circuit television system having seamless interactive television programming and expandable user participation
07/1992
07/28/1992US5134719 Apparatus and methods for identifying broadcast audio program selections in an FM stereo broadcast system
07/23/1992WO1992012607A1 Encoder/decoder for multidimensional sound fields
07/23/1992WO1992012599A1 Audio and video transmission and receiving system
07/22/1992EP0495136A2 Method of transmitting data in RDS broadcasting
07/22/1992CN1063006A Method and apparatus for transmitting, receiving and communicating program data signals with digital data signals
07/21/1992US5133081 Remotely controllable message broadcast system including central programming station, remote message transmitters and repeaters
07/21/1992US5132992 Audio and video transmission and receiving system
07/14/1992US5130815 Method and apparatus for encoding a video signal having multi-language capabilities
07/07/1992US5128933 Process and device for the radio transmission of coded data superimposed on a traditional frequency-modulated broadcast
07/07/1992US5128752 System and method for generating and redeeming tokens
07/01/1992EP0491701A1 Digital medium providing information per still-frame
06/1992
06/30/1992US5127101 Simulcast auto alignment system
06/30/1992US5126702 Current supply means for wideband distribution
06/30/1992CA1304526C Dynamic callback technique
06/25/1992WO1992011707A1 Simulcast scheduler
06/23/1992US5125100 Optimal signal synthesis for distortion cancelling multicarrier systems
06/23/1992US5124698 Method and apparatus for synchronizing radio transmitters in a paging network
06/13/1992WO1992010888A1 Process for transmitting additional information with an a.m. radio signal
06/10/1992EP0489281A2 Arrangement for signal processing in the modulation path to a transmitter
06/10/1992EP0489247A2 RDS broadcast receiver with extended storage capacity for the registration of alternative frequencies
06/10/1992CN1061877A Numerically controlled non-interrupted operating circuit for broadcasting transmitter
06/09/1992US5121203 HDTV transmission system with reduced NTSC CO-channel interference
06/09/1992US5120076 Method of evaluating data relating to a common subject
06/02/1992US5119507 Receiver apparatus and methods for identifying broadcast audio program selections in a radio broadcast system
06/02/1992US5119503 Apparatus and methods for broadcasting auxiliary data in an FM stereo broadcast system
05/1992
05/28/1992WO1992010040A1 Method and apparatus for transmitting, receiving and communicating data signals with corresponding program data signals
05/27/1992DE4037137A1 LF generator with binary coding switch - acts on first digital memory for frequency divider ratios
05/26/1992US5117424 Method and apparatus for setting clock signals to predetermined phases at remote broadcast sites in simulcast systems
05/20/1992EP0486229A2 Satellite control link for paging system
05/14/1992WO1992008303A1 Multichannel operation of rds
05/14/1992CA2055327A1 Satellite control link for paging system
05/12/1992US5113437 Signal identification system