Digital delivery system

Abstract

Abstract PURPOSE:To make stable and sure the delivery of uni-directional signal for optical fiber delivery system or the like, by performing AGC through the use of the average value of the delivery signal converted. CONSTITUTION:The conversion point of the input data signal S1 is detected 2. The signal with a given time 1 is developed when the signal is converted from 0 to 1, the signal with a given time 0 when the signal is converted from 1 to 0, and the signal of a is generated in other cases. The output signal is converted into tristate value of photo signal S2 at the photo transmitter 3 and is delivered to the fiber 4. Further, the photo signal is converted into electric signal at the rceiver 5, AGC 6 is made with the average value of the output signal, outputting the signal s3 having tristate level. The signals S4 and S5 corresponding to 1 and -1 are developed at the threshold value circuit 7 and the same signal S6 as the input data signal can be obtained by controlling the leading and trailing of the data signal with this signal.

Inventors

• 👤 Hiroshi Nakamura
• 👤 Osamu Morita
• 👤 Naomasa Hanano
• 👤 Kazuo Iguchi

Bibliographic Details