| 摘要 |
PURPOSE:To optimize the quantity of generation of file codes and to guarantee the recording time of the receiving side by transmitting the file codes in accordance with the variation of picture signal generating time. CONSTITUTION:An encoding circuit 2 specifies the setting of a minimum guarrantee bits to a counting counter 3, generates a synchronizing signal, encodes a picture signal, and then writes the encoded signal in a memory 4. After completing the encoding of one line, the encoding circuit 2 discriminates whether the counted value by the counting circuit 3 reaches a set value or not, and when the set value is not reached, writes the file codes in the memory continuously until the set value is reached. Consequently, the number of codes in a line exceeds the minimum guarantee bits and the one-line recording time of the receiving side can be guaranteed. Subsequently, the encoding circuit 2 discriminates a picture signal controlling signal; starts the encoding of one line when the signal is on, supervises the number of codes in the memory 4 in case of off and generates file codes when the number of codes is less than a prescribed number. |
