| 摘要 |
<p>PCT No. PCT/GB91/00579 Sec. 371 Date Dec. 3, 1992 Sec. 102(e) Date Dec. 3, 1992 PCT Filed Apr. 12, 1991 PCT Pub. No. WO91/16778 PCT Pub. Date Oct. 31, 1991.A communication system is described in which data characters are each repeatedly encoded in an encoder (3) until an encoded character occurs which is not one of a predetermined set of characters, e.g. reserved characters. Each encoded character, whether or not that encoded character is one of the predetermined set is transmitted by the transmitter (4) to the receiver (5) and a decoded output character provided from the decoder (6) when the corresponding received character is determined not to be the one of the set of characters.</p> |
