发明申请
- 专利标题: ENCODER, DECODER, AND ENCODING METHOD
- 专利标题(中): 编码器,解码器和编码方法
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申请号: US12937366申请日: 2009-07-06
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公开(公告)号: US20110041044A1公开(公告)日: 2011-02-17
- 发明人: Yutaka Murakami , Shutai Okamura , Masayuki Orihashi , Takaaki Kishigami , Shozo Okasaka
- 申请人: Yutaka Murakami , Shutai Okamura , Masayuki Orihashi , Takaaki Kishigami , Shozo Okasaka
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 优先权: JP2008-179636 20080709; JP2008-227505 20080904
- 国际申请: PCT/JP2009/003129 WO 20090706
- 主分类号: H03M13/23
- IPC分类号: H03M13/23 ; G06F11/10
摘要:
An encoder and decoder using LDPC-CC (Low Density Parity Check-Convolutional Codes) is disclosed. The encoder exhibits encoding rates realized with a small circuit-scale and a high data reception quality. In the encoder (200), an encoding rate setting unit (250) sets an encoding rate (s−1)/s (s=z), and an information creating unit (210) sets information including from information Xs,i to information Xz−1,i to zero. A first information computing unit (220-1) receives information X1,i at time point i to compute the X1(D) term of formula (1). A second information computing unit (220-2) receives information X2,i at time point i to compute the X2(D) term of formula (1). A third information computing unit (220-3) receives information X3,i at time point i to compute the X3(D) term of formula (1). A parity computing unit (230) receives parity Pi−1 at time point i−1 to compute the P(D) of formula (1). The exclusive OR of the results of the computation is obtained as parity Pi at time i. Ax.
公开/授权文献
- US08397145B2 Encoder, decoder, and encoding method 公开/授权日:2013-03-12