Invention Grant
- Patent Title: Low density parity check (LDPC) encoded higher order modulation
- Patent Title (中): 低密度奇偶校验（LDPC）编码高阶调制
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Application No.: US13620468Application Date: 2012-09-14
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Publication No.: US08503540B2Publication Date: 2013-08-06
- Inventor: Lin He , Thomas J. Kolze , Ba-Zhong Shen , Gottfried Ungerboeck , Bruce J. Currivan
- Applicant: Lin He , Thomas J. Kolze , Ba-Zhong Shen , Gottfried Ungerboeck , Bruce J. Currivan
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02
Abstract:
A method and apparatus is disclosed to map a sequence of data to Quadrature Amplitude Modulation (QAM) constellation symbols. The method and apparatus encodes only a portion of the sequence of data and leaves a remaining portion of the sequence of data unencoded. The encoded portion of the sequence of data and the remaining unencoded portion of the sequence of data are then mapped into modulation symbols of the QAM constellation. The encoded portion of the sequence of data selects subsets of the QAM constellation, and the remaining unencoded portion of the sequence of data determines a specific modulation symbol within each subset of the QAM constellation.
Public/Granted literature
- US20130010897A1 Low Density Parity Check (LDPC) Encoded Higher Order Modulation Public/Granted day:2013-01-10
Information query
