| 摘要 |
<p>PURPOSE:To provide a picture and data multiplex circuit in which data can be reproduced without deteriorating a picture quality in a conventional decoder, and the erroneous detection of data by an encoding and decoding can be evaded. CONSTITUTION:Picture data divided into blocks of a specific size by a block dividing circuit 101 are transformed into encoding coefficients corresponding to frequency components by an orthogonal transformation circuit 102, and quantized by a preliminarily set numeric value by a quantizing circuit 104. Then, the other data are multiplexed on the high frequency component area of the encoding coefficients after quantization by a multiplex circuit 105.</p> |
