摘要 |
PROBLEM TO BE SOLVED: To attain an optimum picture display in accordance with the receiving, state of a transmission line by wirelessiy transmitting a packet including number information and attribute information set up in screen information and image information. SOLUTION: A transmission memory control circuit 14 adds a field number supplied from a camera unit 10 and a field mark to compressed image data outputted from an image compression circuit while taking account of the time lag of image compression processing executed by an image compression circuit 12, and stores these data in a butter memory 15. The circuit 14 reads out data from the memory 15 in accordance with a data request from a spread spectrum transmission circuit 16, which executes spread spectrum modulation for the data by using a code division/multiplex system and converts the modulated data into a radio frequency(RF) signal. An output signal from the circuit 16 is impressed to an antenna 20 and transmitted from the antenna 20 to an external receiver. |