Patents
Sitemap › H04 - Electric communication technique › H04H - Broadcast communication › H04H 20 - Arrangements for broadcast or for distribution combined with broadcast
Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050)
12/1999
12/03/1999CA2254161A1 Event communication system
12/01/1999EP0664938A4 Method and apparatus for transmission path delay measurements using adaptive demodulation.
12/01/1999CN1237065A Response capacity management in interactive broadcast systems
11/1999
11/30/1999US5995553 Encoder/decoder for emergency alert system
11/30/1999US5995519 FM multiplex broadcasting receiver
11/30/1999US5995517 Multiplexed digital signal receiving device capable of miniaturizing the configuration of a signal receiving portion
11/30/1999US5995147 Communication method, transmission apparatus, transmission method, receiving apparatus and receiving method
11/30/1999US5995134 Method and apparatus for enticing a passive television viewer by automatically playing promotional presentations of selectable options in response to the viewer's inactivity
11/25/1999WO1999045707A3 Watermark detection
11/25/1999WO1999045706A3 Watermark detection
11/25/1999DE19823375A1 Temporary swapping of radio or television channels during unwanted programme segments or advertisements
11/24/1999EP0958566A1 Method for transmitting traffic information and devices for implementing said method
11/24/1999CN1236523A Information transmitting method and television broad cast receiver
11/23/1999US5991610 Memory structure for use in a broadcast receiver, particularly for providing traffic or geographic information
11/23/1999US5991334 Technique for simultaneous communications of analog frequency-modulated and digitally modulated signals using postcanceling scheme
11/23/1999US5991309 Bandwidth management system for a remote repeater network
11/23/1999US5991308 Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant
11/23/1999US5990927 Advanced set top terminal for cable television delivery systems
11/18/1999WO1999059290A1 System for providing contents
11/18/1999WO1999050980A3 Hybrid and all digital fm in-band-on-channel digital audio broadcasting method and system
11/18/1999WO1999045705A3 Embedding auxiliary data in a signal
11/18/1999WO1999045704A3 Watermark detection
11/17/1999EP0957606A2 Encrypted data transmission over satellite links
11/17/1999EP0957601A1 Satellite communication system for audiovisual programmes and multimedia data broadcast
11/17/1999EP0957597A2 System in broadcasting station and receiving machine for the system
11/17/1999EP0957588A1 Radio receiver, radio receiving method, and audio transmitter
11/17/1999EP0956675A1 Am compatible digital waveform frame timing recovery and frame synchronous power measurement
11/17/1999EP0956668A2 Method & apparatus for decoding multi-channel audio data
11/17/1999EP0879534A4 Media online services access system and method
11/17/1999EP0774147B1 Alerting device and system for abnormal situations
11/17/1999CN1235714A Apparatus and method for dynamically selecting transmitter for directed message delivery
11/17/1999CN1235475A Template set for generating hypertext for displaying program guide and subscriber terminal with EPG function using such set broad cast from headend
11/17/1999CN1235463A Broadcasting system and receiver
11/16/1999US5987418 Synchronous decoding of packetized audio for different reproduction modes
11/16/1999US5987382 Radio signal receiver for motor vehicles with an RDS decoder for digital signals
11/16/1999US5987077 Method of synchronizing a digital signal receiver
11/16/1999US5986690 Electronic book selection and delivery system
11/15/1999CA2257438A1 Traffic data broadcasting system
11/15/1999CA2235184A1 Traffic data broadcasting system
11/11/1999WO1999057723A2 Anti-copying methods and devices for digital information signals
11/11/1999CA2331111A1 Anti-copying methods and devices for digital information signals
11/10/1999EP0955634A1 Anti-copying system for audio signals
11/10/1999EP0955521A2 Route information transmission method
11/10/1999EP0954911A2 Assessment of digital signals
11/10/1999EP0954829A1 System for providing an interactive presentation
11/10/1999CN1234709A Method for controlling paging call-in terminal in mobile communication system
11/09/1999US5982412 Coaxial testing and provisioning network interface device
11/04/1999WO1999056450A1 Methods and apparatus for providing information in response to telephonic requests
11/03/1999EP0954179A2 Response capacity management in interactive broadcast systems
11/03/1999EP0954176A2 Reminder system for broadcast and non-broadcast events
11/03/1999EP0954132A2 Receiver for Digital Audio Broadcasting comprising a dynamic range control system
11/03/1999EP0954130A2 Receiver for receiving Digital Audio Broadcast (DAB) programmes comprising language information
11/03/1999EP0953238A1 Audio signal identification using code labels inserted in the audio signal
11/03/1999EP0566662B1 Audio and video transmission system
11/03/1999CN1233831A Data recording method and data recording apparatus
11/02/1999US5978374 Protocol for data communication over a point-to-multipoint passive optical network
11/02/1999US5978037 Circuit for decoding additional information in a composite signal
11/02/1999US5978013 Apparatus and method for generating product coupons in response to televised offers
11/02/1999US5978012 Data receiving-processing apparatus and method, and broadcasting method
10/1999
10/30/1999CA2270729A1 Radio frequency broadcast system for enclosed spaces
10/30/1999CA2270723A1 Configurable monitoring of program viewership and usage of interactive applications
10/27/1999EP0952751A2 Multimode service radio communication method and apparatus
10/27/1999EP0952691A2 Receiver with channel swapping facilities for receiving a digital audio signal comprising multiple digital audio channels
10/27/1999EP0951681A2 System for interactively distributing information services
10/26/1999US5974095 Digital satellite broadcasting receiver
10/26/1999US5973722 Combined digital audio/video on demand and broadcast distribution system
10/26/1999US5973685 Scheme for the distribution of multimedia follow-up information
10/21/1999WO1999053692A1 Communication apparatus with modulators and oscillators
10/21/1999WO1999053636A1 Bidirectional broadcasting system
10/21/1999WO1999052613A1 Information reproducing apparatus and broadcasting system
10/21/1999CA2293791A1 Information reproducing apparatus and broadcasting system
10/20/1999EP0916126A4 Annunciator system with mobile receivers
10/19/1999US5970486 Keyword creation method and its apparatus
10/19/1999US5970386 Transmodulated broadcast delivery system for use in multiple dwelling units
10/19/1999US5970085 Method and receiver for coded satellite digital audio broadcasting
10/19/1999US5969836 Method and apparatus for simultaneous transmission of digital telephony and analog video over a single optic fiber using wave division multiplexing
10/19/1999US5969715 Compact graphical interactive information system
10/19/1999US5969634 FM multiplexed broadcast receiving apparatus
10/19/1999US5968118 Information outlet and industrial set top functionality
10/14/1999WO1999052285A1 Targeted advertisement using television delivery systems
10/14/1999DE19816585A1 Route information method for terminal user in road traffic, using mobile radio network, e.g. GSM-SMS
10/13/1999EP0949770A1 Bidirectional broadcasting system
10/13/1999EP0949763A2 Digital transmission system for transmitting scale factors
10/13/1999EP0723729A4 Simulcast of interactive signals with a conventional video signal
10/13/1999CN1045704C Method for processing digital auxiliary signal
10/12/1999US5966636 Method and apparatus for multiple access over randomized slots with collision detection in a cable telephony system
10/12/1999CA2219283C An improved periodic wireless data broadcast
10/07/1999WO1999050992A1 Data transmitting/receiving method, data transmitter, data receiver, data transmitting/receiving system, av content transmitting method, av content receiving method, av content transmitter, av content receiver, and program recording medium
10/07/1999WO1999050983A1 Detection of code vectors in single frequency, multiple transmitter networks
10/07/1999WO1999050982A1 Method and apparatus for am digital broadcasting
10/07/1999WO1999050981A1 Digital audio broadcasting method using puncturable convolutional code
10/07/1999WO1999050980A2 Hybrid and all digital fm in-band-on-channel digital audio broadcasting method and system
10/07/1999CA2326531A1 Digital audio broadcasting method using puncturable convolutional code
10/07/1999CA2326453A1 Detection of code vectors in single frequency, multiple transmitter networks
10/06/1999EP0947099A1 Television broadcast system and method
10/06/1999CN1231088A Signalling method and transmitter used in digital radio system
10/06/1999CN1230853A Information broadcasting method, receiver, and information processing apparatus
10/06/1999CN1230848A Digital television broadcasting system
10/05/1999US5963909 Multi-media copy management system
10/05/1999US5963645 Reception apparatus, reception method, transmission apparatus, transmission method, transmission-reception apparatus, and transmission-reception method
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