Closed-caption broadcasting and receiving method and apparatus thereof suitable for syllable characters
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United States of America Patent
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-
Jul 3, 2001
Grant Date -
N/A
app pub date -
May 5, 1997
filing date -
May 3, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A closed-caption broadcasting and receiving method and apparatus. According to the closed-caption broadcasting method and apparatus, additional information is inputted and the input of word information is checked. If the word information is inputted, it is selected, while if not, the additional information is selected. Thereafter, character information and control information of the selected information are inputted. A control code of 2 words is obtained by combining the control information with a mode control bit and a parity bit, and the character code of 2 words including a syllable character completion type code is obtained by combining the character information with a mode control bit and a parity bit. A digital-modulated caption signal is produced by inputting the control code and the character code, and is coded in a scanning line which does not affect a television video signal to be transmitted.
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Family
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Cited Art Landscape
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