| 摘要 |
<p>FACSIMILE DATA COMPRESSION METHOD A method for compressing, transmitting and reproducing facsimile data using data bits of picture elements which are included in a plurality of scanning lines, which method reduces the required bandwidth in order to transmit said facsimile data. In this method, at least one status of a data bit which is positioned at the head of serial data bits obtained by scanning said facsimile data is changed to a reference status, or a reference status is placed before said serial data bits. As the status of the first data bit of the serial data bits is predetermined, it is not necessary to send information of the status of the first data bit to a receiving side, so that the information of the facsimile data can be transmitted by one synchronizing code, transition codes or mode codes and run length codes. In this way, a mode code which represents the status of the first data bit of the serial data bits need not be sent.</p> |
