Invention Grant
US07356220B2 Apparatus and method for reducing signal noise and OCDMA receiver and method
失效
降低信号噪声和OCDMA接收机的方法及方法
- Patent Title: Apparatus and method for reducing signal noise and OCDMA receiver and method
- Patent Title (中): 降低信号噪声和OCDMA接收机的方法及方法
-
Application No.: US11399115Application Date: 2006-04-05
-
Publication No.: US07356220B2Publication Date: 2008-04-08
- Inventor: Hwan Seok Chung , Heuk Park , Kwang Joon Kim
- Applicant: Hwan Seok Chung , Heuk Park , Kwang Joon Kim
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Agency: Ladas & Parry LLP
- Priority: KR10-2005-0101740 20051027
- Main IPC: G02B6/26
- IPC: G02B6/26
Abstract:
Provided are an apparatus and a method for reducing a signal noise of an OCDMA receiver and an OCDMA receiver and method. The includes: a clock recovery unit extracting sine wave clock from an output signal of an OCDMA decoder including an MAI (multiple access interference) noise; a time gating unit separating an auto-correlation peak signal and the MAI noise from the output signal of the OCDMA decoder using the sine wave clock; and an optical interferometer removing an SI (signal interference) noise remaining in the auto-correlation peak signal.
Public/Granted literature
- US20070097854A1 Apparatus and method for reducing signal noise and OCDMA receiver and method Public/Granted day:2007-05-03
Information query
