| 摘要 |
<p>PROBLEM TO BE SOLVED: To validly use an unused area by adding auxiliary information such as residual battery data according to the unused area generated at the time of packetizing compressed data whose code amounts fluctuate into data whose code amounts are constant, and transmitting the data. SOLUTION: For example, when a picture with many high frequency components is rapidly changed to a picture with few high frequency components, the code amounts of the compressed picture data of one screen are made smaller than a target value, and the unused area of a data frame to be transmitted by a spread spectrum transmitting part 109 is made large. At that time, the data amounts of the unused area are detected from the compressed picture data of each screen supplied from a JPEG compressing circuit 105, and whether or not auxiliary information such as battery information (information indicating residual battery or the like) supplied from a voltage detecting circuit 12 or camera information related with camera parts 101-103 can be inserted into the unused area is judged by a data controller 107. The auxiliary information and the compressed picture data are supplied to the spread spectrum transmitting part 109.</p> |
