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Method and apparatus for communicating different types of data in a data stream
| Details |
Inventors: Wall, Jr., William Edgar; McMullan, Jr., Jay Cauthern; Rovira, Luis Agustin;
Assignee: Scientific-Atlanta, Inc. (Norcross, GA)
Primary Examiner: Olms; Douglas W.
Assistant Examiner: Hom; Shick
Attorney, Agent or Firm: Massaroni; Kenneth M., Barnhardt, III; Hubert J., Gardner; Kelly A.
An apparatus and method is described for transmitting, receiving and communicating program data signals which are combined with digital data signals. Preferably, the present invention compresses 30 digital audio signals, multiplexes them with title, track, artist, record label, year, etc., program information, and transmits the combined signals via satellite to a receiving station. The receiving station demultiplexes the signals and sends them via a cable distribution system to a subscriber's digital music tuner. This tuner further demultiplexes and decodes the signals so that the digital audio signals may be converted to analog and output for listening, while the corresponding data signals are communicated to the subscriber. In an alternative preferred embodiment, the program data signals are transmitted to a remote control receiver where they are displayed. The system described in the present invention may be used for transmitting video, software or games with program data to subscribers. |
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DETAILED DESCRIPTION The problems and related problems of transmitting and providing a display of program content data are solved by the principles of the present invention.
In furtherance of these principles, it is an object of the present invention to provide program information to subscribers without interrupting the program.
It is an object of the present invention to transmit and provide program information for digital audio transmitted to subscribers, where the program information is combined with the digital audio.
It is a further object of the present invention to provide program data to subscribers of video information.
It is another object of the present invention to provide program information to subscribers where the information is communicated through a remote control unit.
It is a further object of the present invention to provide a system where digital program information is combined with digital audio/video signals which are transmitted via satellite, coaxial cable, or other means to subscribers.
It is another object of the present invention to provide program data corresponding to audio/video signals to subscribers with disabilities.
In accordance with these and other objects, apparatus for encoding according to the present invention comprises: a plurality of means for producing digital signals; a plurality of means for producing a plurality of program data signals, each program data signal corresponding to one digital signal; and, at least one encoding means, coupled to the plurality of means for producing digital and program data signals, for encoding the plurality of program data signals with the plurality of digital signals to produce a plurality of combined digital and program data signals.
Additionally, under these and other objects, a method is disclosed for encoding program information into a digital data stream comprising the steps of: producing a plurality of digital signals: producing a plurality of program data signals, each program data signal corresponding to one digital signal: and encoding the plurality of program data signals with the plurality of digital signals to produce a plurality of combined digital and program data signals
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