| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a digital transmission system which can be applied in both of a system restricted by noise and a system restricted by phasing, and is capable of high quality transmission without raising a transmission bit rate. <P>SOLUTION: In the digital transmission system having a transmitting apparatus that transmits digital data signals and a receiving apparatus that receives the digital data signals transmitted over a transmission path, compares the signals with a predetermined threshold value and performs decision reproduction, the receiving apparatus is provided with k number (k×n) of decision circuit sets each having different threshold values, with one set formed by a plurality (n number) of decision circuits having the same threshold value, distribution circuits that distribute reception signals to the respective decision circuits, a selection circuit that selects and outputs one decision result from the decision circuits and a control circuit that controls the selection circuit such that decision results of each decision circuit are inputted, a set in which the decision results of n number of decision circuits are the same is selected by every set and the decision result of one decision circuit from the one set is selected. <P>COPYRIGHT: (C)2003,JPO |
