Invention Grant
US07668256B2 Method and apparatus for the generation and detection of optical differential varied-multilevel phase-shift keying with pulse amplitude modulation (ODVMPSK/PAM) signals
有权
用于产生和检测具有脉冲幅度调制（ODVMPSK / PAM）信号的光差分多级相移键控的方法和装置
- Patent Title: Method and apparatus for the generation and detection of optical differential varied-multilevel phase-shift keying with pulse amplitude modulation (ODVMPSK/PAM) signals
- Patent Title (中): 用于产生和检测具有脉冲幅度调制（ODVMPSK / PAM）信号的光差分多级相移键控的方法和装置
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Application No.: US11458825Application Date: 2006-07-20
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Publication No.: US07668256B2Publication Date: 2010-02-23
- Inventor: Randy C Giles , Xiang Liu
- Applicant: Randy C Giles , Xiang Liu
- Applicant Address: US NJ Murray Hill
- Assignee: Alcatel-Lucent USA Inc.
- Current Assignee: Alcatel-Lucent USA Inc.
- Current Assignee Address: US NJ Murray Hill
- Agency: Brosemer, Kolefas & Associates, LLC
- Main IPC: H03C1/52
- IPC: H03C1/52 ; H03K7/02 ; H04L27/18
Abstract:
Methods and apparatus are described for generating and receiving amplitude and differential-phase encoded signals in which the number of phase states at a given amplitude level is always less than or equal to that at a higher amplitude level and at least two amplitude levels have different numbers of phase states.
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