Invention Grant
US08953939B2 Variable bit-rate QPSK transmitter and method employing polarization manipulation
有权
可变比特率QPSK发射机和采用极化处理的方法
- Patent Title: Variable bit-rate QPSK transmitter and method employing polarization manipulation
- Patent Title (中): 可变比特率QPSK发射机和采用极化处理的方法
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Application No.: US13667708Application Date: 2012-11-02
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Publication No.: US08953939B2Publication Date: 2015-02-10
- Inventor: Shaoliang Zhang , Dayou Qian , Junqiang Hu , Lei Xu , Ting Wang
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Agent Joseph Kolodka
- Main IPC: H04J14/06
- IPC: H04J14/06 ; H04B10/04 ; H04B10/12 ; H04B10/50
Abstract:
Disclosed are universal QPSK transmitter structures and methods for generating different QPSK signals exhibiting different polarization schemes, namely PolMux, PolMod and PolSw. The bit rate of the generated signals is variable, thereby allowing the transmitter to adjust to varying network traffic conditions. Advantageously, the generated signals may be detected by analog receivers (PolSw-QPSK) and coherent receivers (PolMux-QPSK, PolMod-QPSK, and PolSw-QPSK).
Public/Granted literature
- US20130108270A1 VARIABLE BIT-RATE QPSK TRANSMITTER AND METHOD EMPLOYING POLARIZATION MANIPULATION Public/Granted day:2013-05-02
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