发明名称 |
Technique for transmitting digital data together with a video signal |
摘要 |
Supplementary digital data is encoded together with a video signal by predicting the intensity values of a first set of video samples, compressing the range of the prediction errors and superimposing a value indicative of the supplementary data on the compressed value. The samples in the first set may be selected in a regular sequence or asynchronously in accordance with a function of the video signal such as the slope in the area of the picture being processed; the composite values are time multiplexed with the remaining intensity values.
|
申请公布号 |
US4237484(A) |
申请公布日期 |
1980.12.02 |
申请号 |
US19790064918 |
申请日期 |
1979.08.08 |
申请人 |
BELL TELEPHONE LABORATORIES, INCORPORATED |
发明人 |
BROWN, EARL F.;NETRAVALI, ARUN N. |
分类号 |
G06T9/00;H04N7/08;H04N7/54;(IPC1-7):H04N7/08 |
主分类号 |
G06T9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|