| Patents for H04H 60 - Arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time; Broadcast-related systems (19,742) |
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| 07/30/1991 | US5036389 Satellite controlled audience polling system |
| 07/25/1991 | WO1991011062A1 Method and apparatus for broadcast media audience measurement |
| 07/23/1991 | US5034902 Method and system for ascertaining the consumption habits of a test population |
| 07/23/1991 | US5034807 System for evaluation and rewarding of responses and predictions |
| 07/10/1991 | CN2080732U No voltage-regulating, miniature train broadcasting equipment |
| 07/09/1991 | US5031228 Image recognition system and method |
| 07/02/1991 | CA1285648C Electronic information dissemination system |
| 06/26/1991 | EP0433904A2 RDS broadcast receiver with a device for preferential reception of programs with the same country code |
| 06/26/1991 | EP0433596A2 Method and apparatus for suppressing undesired automatic transmitter change-over |
| 06/26/1991 | EP0433384A1 Apparatus and method for monitoring television viewers |
| 06/25/1991 | US5027400 Multimedia bidirectional broadcast system |
| 06/19/1991 | EP0432197A1 A sound recording console. |
| 06/11/1991 | US5023929 Audio frequency based market survey method |
| 06/05/1991 | EP0430711A2 Video network |
| 05/29/1991 | EP0429000A2 RDS broadcast receiver with a device for country-specific interpretation of RDS data |
| 05/29/1991 | EP0428866A2 Method and apparatus for suppressing transmitter change-over in RDS receivers due to local disturbances |
| 05/28/1991 | US5019899 Electronic data encoding and recognition system |
| 05/22/1991 | EP0428252A2 A system for controlling access to broadcast transmissions |
| 05/16/1991 | WO1991007029A1 Radio receiver, in particular for vehicles |
| 05/14/1991 | CA1284211C Cable television system selectively distributing pre-recorder video and audio messages |
| 05/08/1991 | EP0426542A1 Method of instant validation of actions in the field of television programmes and device for carrying out this method |
| 05/08/1991 | DE3936577A1 Rundfunkempfaenger, insbesondere fahrzeugempfaenger Rundfunkempfaenger, especially fahrzeugempfaenger |
| 05/07/1991 | US5014341 Hybrid master control desk for analog and digital audio signals |
| 05/02/1991 | EP0425347A1 Portable electronic device for making a public loyal to a media or similar |
| 05/02/1991 | EP0424648A2 Method, system and apparatus for providing demographically targeted television commercials |
| 04/30/1991 | US5012510 Dynamic callback technique |
| 04/25/1991 | WO1991006914A1 Portable electronic device to establish public loyalty to a media or similar |
| 04/16/1991 | US5008756 Video camera system with audio switching circuit |
| 04/10/1991 | EP0421482A2 Television and market research data collection system and method |
| 03/14/1991 | DE3929245A1 RDS data continuous recording appts. - has head frequency controlled by RDS message, and speed set for all-day monitoring |
| 03/13/1991 | EP0415966A1 Automatic censorship of broadcast programmes |
| 03/06/1991 | EP0415132A2 RDS broadcast receiver with device for automatically switching over to an alternative regional programme |
| 03/05/1991 | US4998278 Method and apparatus for scramble type broadcast receiving with contract management and scramble type broadcasting system |
| 02/13/1991 | EP0412335A2 Method and apparatus for determining audience viewing habits |
| 02/13/1991 | EP0412286A2 Route-selective reproduction method for digitally coded messages transmitted from a transmitter to a vehicle receiver, and corresponding vehicle receiver |
| 02/12/1991 | US4993073 Digital signal mixing apparatus |
| 02/12/1991 | US4993060 Portable device for use by a news reporter |
| 02/05/1991 | US4991207 One-way address transmission system of PCM music |
| 02/05/1991 | US4991025 Arrangement for automatically switching a videorecorder on and off in the absence of a code signal but in presence of a FBAS signal |
| 02/05/1991 | CA1279924C Cryptographic system using interchangeable key blocks and selectable key fragments |
| 01/30/1991 | EP0410036A1 Commodity information retrieval system |
| 01/29/1991 | US4989234 Systems for capturing telephonic mass responses |
| 01/29/1991 | US4989233 Systems for capturing telephonic mass responses |
| 01/24/1991 | DE3923447A1 Radio and TV studio equipment showing subjective sound level - supplies instantaneous programme audio signal as mono signal to frequency evaluating circuit using frequency response of human hearing |
| 01/22/1991 | US4987605 Radio receiver incorporating automatic means for setting broadcast standard |
| 01/22/1991 | CA1279400C Video cassette recorder adapter |
| 01/16/1991 | EP0408348A2 Method and apparatus for monitoring effectiveness of advertising |
| 01/15/1991 | CA1279124C Program identification method and apparatus |
| 01/09/1991 | CN1048473A Digital transmission system transmitter and receiver for use in transmission system, and record carrier obtained by means of transmitter in form of recording device |
| 01/08/1991 | CA1278856C Method for polling headphones of a passive tv audience meter system |
| 12/27/1990 | EP0403744A2 RDS broadcast receiver with empirically growing memory contents in its program memories |
| 12/26/1990 | CN1048136A Satellite tv communication system for audience polling and processing answers |
| 12/19/1990 | EP0402973A1 Digital transmission system, transmitter and receiver for use in the transmission system, and record carrier obtained by means of the transmitter in the form of a recording device |
| 12/19/1990 | EP0402809A2 Satellite television communication system for audience polling and processing answers |
| 12/19/1990 | EP0229127B1 Device for automatically switching on and off the recording function of a video recorder |
| 12/13/1990 | CA2018539A1 Satellite television communication system for audience polling and processing answers |
| 12/08/1990 | WO1990015497A1 Method and devices for transmitting to subscribers from a central server connected to a high throughput digital telecommunication network information recorded on digital disks |
| 12/08/1990 | CA2058439A1 Method and devices for transmitting to subscribers from a central server connected to a high throughput digital telecommunication network information recorded on digital disks |
| 12/02/1990 | CA2475414A1 Decoder, receiver and method for decoding an encoded digital audio signal |
| 11/28/1990 | EP0399897A1 System for individual participation in a television broadcast |
| 11/28/1990 | EP0399355A2 Broadcast receiver |
| 11/28/1990 | EP0399064A2 Method of preparing broadcast sequence control data and apparatus for implementing said method |
| 11/20/1990 | US4972503 Method and apparatus for determining audience viewing habits by jamming a control signal and identifying the viewers command |
| 11/15/1990 | WO1990013882A1 Broadcast receiver, in particular for vehicles |
| 11/15/1990 | DE3914104A1 Rundfunkempfaenger, insbesondere fahrzeugempfaenger Rundfunkempfaenger, especially fahrzeugempfaenger |
| 11/06/1990 | US4969209 Broadcast receiver capable of selecting stations based upon geographical location and program format |
| 10/31/1990 | EP0394268A1 Motorised faders. |
| 10/25/1990 | DE3912945A1 Car radio receiving traffic broadcast - uses recorded text for traffic information supplied when radio is switched off |
| 10/24/1990 | EP0394071A1 Video camera systems |
| 10/23/1990 | US4965825 Method of generating computer output |
| 10/16/1990 | US4964162 Secure television signal encoding and decoding system |
| 10/03/1990 | EP0389689A1 Method for transmitting a transmission signal and a transmitting device and a receiving device for use in the method |
| 10/02/1990 | US4961109 Chargeable program receiving limit setting system in two-way cable television system |
| 09/20/1990 | WO1990010988A1 A system and device for data transmission, and related method |
| 09/20/1990 | WO1990010981A1 Method for linking rds programme services and rds |
| 09/19/1990 | EP0387810A2 Mobile receiver |
| 09/12/1990 | EP0386836A1 Method of processing a radio data signal and receiver for performing said method |
| 09/06/1990 | DE3906734A1 Method for mixing audio signals |
| 09/05/1990 | EP0385147A2 Apparatus for controlling the reception capacity of radio alarm receivers |
| 09/04/1990 | US4955070 Apparatus and method for automatically monitoring broadcast band listening habits |
| 08/30/1990 | DE3904181A1 Broadcast receiving device for motor vehicles |
| 08/29/1990 | EP0384794A1 Traffic and parking information collecting and broadcasting system for transport vehicles, especially for motorists |
| 08/29/1990 | EP0383775A1 A pay per view entertainment system. |
| 08/22/1990 | EP0382996A1 Method and system for ascertaining the consumption habits of a test population |
| 08/22/1990 | EP0382764A1 Signal processing apparatus and methods. |
| 08/16/1990 | EP0381937A2 Warning messages reproduction system |
| 08/14/1990 | US4949394 Addressable PCM music broadcast receiver |
| 08/09/1990 | DE4009683A1 Digital storage arrangement for traffic messages - has bandwidth low-pass filter limiting without loss of information |
| 08/07/1990 | US4947440 Shaping of automatic audio crossfade |
| 08/03/1990 | CA2008789A1 System for collecting and disseminating information on traffic and on parking of transport vehicles (in particular for car drivers) |
| 08/01/1990 | EP0379532A1 A method of evaluating digitally encoded traffic information received in a data telegram and radio receivers |
| 07/31/1990 | US4945412 Method of and system for identification and verification of broadcasting television and radio program segments |
| 07/24/1990 | US4943963 Data collection and transmission system with real time clock |
| 07/12/1990 | WO1990007828A1 Apparatus for grasping tv viewing condition in household |
| 07/10/1990 | US4941040 Cable television system selectively distributing pre-recorded video and audio messages |
| 07/03/1990 | US4939729 Process for the switching of asynchronous digital signals and device for the implementation of this process |
| 07/03/1990 | CA1271249A1 Image reception system |
| 06/28/1990 | WO1990007237A1 Improvements to rds radio system |
| 06/27/1990 | EP0374220A1 Coupling field for digital audio signals |
| 06/19/1990 | US4935924 Signal distribution network |