Invention Grant
- Patent Title: Method and apparatus to reduce the impact of raman interference in passive optical networks with RF video overlay
- Patent Title (中): 减少射频视频叠加无源光网络中拉曼干扰影响的方法和装置
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Application No.: US11532633Application Date: 2006-09-18
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Publication No.: US09312955B2Publication Date: 2016-04-12
- Inventor: Duane R. Remein , John Lane Moss , Hugh Andrew Lagle, III
- Applicant: Duane R. Remein , John Lane Moss , Hugh Andrew Lagle, III
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Alcatel Lucent
- Current Assignee: Alcatel Lucent
- Current Assignee Address: FR Boulogne-Billancourt
- Agency: Capitol Patent & Trademark Law Firm, PLLC
- Main IPC: H04B1/00
- IPC: H04B1/00 ; H04B10/2537 ; H04J3/10 ; H04J3/16
Abstract:
Raman interference (also known as Raman scattering) during an idle frame transmission state in a passive optical network (PON) having radio frequency video overlay is reduced by generating and transmitting data packets having both random data and random length. Randomly varying both the packet data content and the packet length can achieve significant improvement in Raman interference reduction. The random packet data and length in effect spreads the interference across a spectrum wide enough that there is no interference effect perceptible to a television viewer.
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