Data encoding for television

Details Data encoding for television Data encoding for television

1980-12-08

1983-04-12

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358142, H04N 708

Patent

active

043800270

ABSTRACT:
A system for encoding digital data to be transmitted by way of the scan lines of a television video signal includes interface circuitry for receiving data from a number of input devices each operating at a particular data rate, and encoding processing circuitry which takes the data received by the interface circuitry and arranges it into separate data groups wherein each group corresponds to the particular input device which originated the data. The data groups are then inserted, with the aid of timing circuitry, into corresponding data channels defined in a selected scan line of the video signal. Accordingly, the system makes efficient use of the allowable bandwidth of the video signal by allowing data originating from a higher data rate device to be inserted into the same scan line which carries information originating from a lower data rate device.

REFERENCES:
patent: 3781818 (1973-12-01), Pardoe
patent: 4218697 (1980-08-01), Leventer
patent: 4303941 (1981-12-01), Marti
An Integrated Teletext and Viewdata Receiver, Insam et al., Conf. Inter. Broadcasting Convention, Sep. 1976, pp. 113-116.

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