Invention Grant
US07792222B2 Using soft bit decisions to improve DPSK demodulation of SPS data
有权
使用软比特决策改善SPS数据的DPSK解调
- Patent Title: Using soft bit decisions to improve DPSK demodulation of SPS data
- Patent Title (中): 使用软比特决策改善SPS数据的DPSK解调
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Application No.: US11431803Application Date: 2006-05-10
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Publication No.: US07792222B2Publication Date: 2010-09-07
- Inventor: Kai Tang , Douglas Neal Rowitch
- Applicant: Kai Tang , Douglas Neal Rowitch
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Andrea L. Mays; Arnold J. Gum
- Main IPC: H03D1/00
- IPC: H03D1/00 ; H03D3/22
Abstract:
According to one embodiment, a demodulation system, such as DPSK in a SPS system can be used with soft decision information to correct bit errors. Soft decision information values are utilized to switch hard decision bits of the differentially decoded signal. A parity check can be used to determine if the toggling of the bit corrected the parity error.
Public/Granted literature
- US20060285612A1 Using soft bit decisions to improve DPSK demodulation of SPS data Public/Granted day:2006-12-21
Information query
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