Abstract: A picture information input apparatus has a leading and trailing end detecting circuit for detecting the leading and trailing ends of a document to produce read out signals of "1" and "0". The leading and trailing end detecting circuit starts a first count by a document presence detecting signal of "0" from a detecting unit which detects the transfer of the document. When a hole of the document is smaller than an allowable hole diameter, it clears the counting. Only when the hole is larger than the allowable hole diameter, it starts a second count. After the second count ends, it produces a read out signal of "0" indicating that the trailing edge of the document is detected. A picture bus control circuit receives the read out signal of "1" to transmit a picture data signal to a picture transceiver, and receives the read out signal of "0" to stop the transmission of the picture data signal.

Abstract: A recording and reproducing system which uses a recording medium having a plurality of information recording tracks for recording image information. And at least one index recording track is located on the recording medium for recording index information. The index recording track is located substantially at the center of the recording medium and extends length wise of the recording medium in the direction of movement of this recording medium. Accordingly, the recording medium of the present invention eliminates the adverse effect of the drop-out and reduces the period of time required to search for the index information and reproduce image information.