Title: Optical code division multiplexing receiving device and time gate processing method in optical code division multiplexing receiving device
Application Number: 200610154225 Application Date: 2006.09.15
Publication Number: 1937466 Publication Date: 2007.03.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04J14/00
Applicant(s) Name: Oki Electric Ind Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: qurui
Abstract:
    Provided are an optical code division multiplexing receiving device and time gate processing method in optical code division multiplexing receiving device. In a decoder, received optical code division multiplexed signals are divided into two, one of which is reflected as a decoded signal, and the other of which is transmitted as an encoded signal in the encoded state. In the clock extraction circuit, encoded signals are divided into first encoded signals and second encoded signals. In the first clock signal generation portion, first clock signals are generated from the first encoded signals, and optical pulses synchronized with the first clock signals are extracted from the second encoded signals, and second clock signals are generated from the extracted optical pulses. In the time gate processor, time gate processing of the decoded signal is performed, using the second clock signals as the gate signals, and the result is output.
Time: 12