Product coded modulation scheme based on leech lattice and binary and nonbinary codes
    41.
    发明授权
    Product coded modulation scheme based on leech lattice and binary and nonbinary codes 有权
    基于水蛭晶格和二进制和非二进制代码的商品编码调制方案

    公开(公告)号:US09467177B1

    公开(公告)日:2016-10-11

    申请号:US14466355

    申请日:2014-08-22

    发明人: Dariush Dabiri

    IPC分类号: H03M13/00 H03M13/29

    摘要: A transceiver architecture contains an encoder and a decoder for communicating high speed transmissions. The encoder modulates signal data based on an FEC code that has a symbol size that is not matched to a symbol size of a hexacode. Any code where the symbol size is less than the sample size for coding can be serially concatenated. During decoding the multilevel decoding leech lattice and FEC decoder iteratively passes their outputs back and forth to each other until the encoded bits are decoded.

    摘要翻译: 收发机架构包含用于传送高速传输的编码器和解码器。 编码器基于具有与六进制码的符号大小不匹配的符号大小的FEC码来对信号数据进行调制。 符号大小小于编码的样本大小的任何代码都可以串行连接。 在解码期间,多级解码水蛭格和FEC解码器将它们的输出相互反复地传递给彼此直到编码比特被解码。

    INCREMENTAL LLR GENERATION FOR FLASH MEMORIES
    42.
    发明申请
    INCREMENTAL LLR GENERATION FOR FLASH MEMORIES 审中-公开
    闪存存储器的增量LLR生成

    公开(公告)号:US20160277041A1

    公开(公告)日:2016-09-22

    申请号:US15072009

    申请日:2016-03-16

    IPC分类号: H03M13/45 G06F11/10

    摘要: Methods for decoding information stored on a memory may include performing a hard read at an initial threshold and determining a first distribution percentage, performing a hard read at a subsequent threshold and determining a second distribution percentage, generating a least-likelihood ratio (LLR) based on the hard reads performed at the initial and subsequent thresholds, and based on the first and second distribution percentages, and soft decoding the information based on the generated LLR.

    摘要翻译: 用于解码存储在存储器上的信息的方法可以包括在初始阈值处执行硬读取并确定第一分布百分比,在随后的阈值处执行硬读取并确定第二分布百分比,生成最小似然比(LLR) 对基于初始和后续阈值执行的硬读取,并且基于第一和第二分布百分比,并且基于所生成的LLR对信息进行软解码。

    DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN DIGITAL BROADCASTING SYSTEM
    46.
    发明申请
    DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN DIGITAL BROADCASTING SYSTEM 有权
    数字广播系统和数字广播系统中数据处理方法

    公开(公告)号:US20150249523A1

    公开(公告)日:2015-09-03

    申请号:US14715371

    申请日:2015-05-18

    IPC分类号: H04L1/00 H03M13/25

    摘要: The present invention provides a data processing method that includes receiving a broadcasting signal in which mobile service data are multiplexed with main service data, extracting transmission-parameter-channel signaling information and fast-information-channel (FIC) signaling information from a data group within the received mobile service data, parsing first program table information describing virtual channel information of an ensemble and a service provided by the ensemble using the FIC signaling information, the ensemble corresponding to a virtual channel group of the received mobile service data, obtaining information from the first program table information, the information representing that second program table information including a descriptor describing event information of the mobile service data is received, parsing the second program table information, storing the event information and displaying service guide information including the event information.

    摘要翻译: 本发明提供了一种数据处理方法,包括接收移动业务数据与主业务数据复用的广播信号,从内部的数据组提取发送参数信道信令信息和快速信息信道(FIC)信令信息 接收到的移动业务数据,使用FIC信令信息解析描述集合的虚拟信道信息的第一节目表信息和由集合提供的服务,对应于所接收的移动业务数据的虚拟信道组的集合,从 第一节目表信息,接收表示包括描述移动业务数据的事件信息的描述符的第二节目表信息的信息,解析第二节目表信息,存储事件信息并显示包括事件信息的服务指南信息。

    Methods, apparatus, and systems for coding with constrained interleaving

    公开(公告)号:US09112534B2

    公开(公告)日:2015-08-18

    申请号:US13987519

    申请日:2013-08-02

    摘要: Serially-concatenated codes are formed in accordance with the present invention using a constrained interleaver. The constrained interleaver cause the minimum distance of the serial concatenated code to increase above the minimum distance of the inner code alone by adding a constraint that forces some or all of the distance of the outer code onto the serially-concatenated code. This allows the serially-concatenated code to be jointly optimized in terms of both minimum distance and error coefficient to provide significant performance advantages. Constrained interleaving can be summarized in that it: 1) uses an outer code that is a block code or a non-recursive convolutional code, and as such, there are multiple codewords present in the constrained interleaver, 2) selects a desired MHD, 3) selects an interleaver size and a set of predefined interleaver constraints to prevent undesired (low-distance) error events so as to achieve the desired MHD, and 4) performs uniform interleaving among the allowable (non-constrained) positions, to thereby maximize or otherwise improve the interleaver gain subject to the constraints imposed to maintain the desired MHD.

    CHAIN ENCODING AND DECODING OF HIGH SPEED SIGNALS
    50.
    发明申请
    CHAIN ENCODING AND DECODING OF HIGH SPEED SIGNALS 有权
    链接编码和解码高速信号

    公开(公告)号:US20150033092A1

    公开(公告)日:2015-01-29

    申请号:US13949627

    申请日:2013-07-24

    IPC分类号: H03M13/05

    摘要: A method of recovering a value of a symbol received through an optical communications system. A multi-bit estimate of the symbol is subdivided into a first part and a second part, each part including at least one respective bit of the estimate. A most likely value of the first part is detected. The most likely value of the first part is processed using a Forward Error Correction (FEC) decoder to generate a corrected first part value, which is used to detect a most likely value of the second part. The most likely value of the second part is then processed by the FEC decoder to generate a corrected second part, which is combined with the corrected first part to recover the value of the symbol.

    摘要翻译: 一种恢复通过光通信系统接收的符号的值的方法。 符号的多位估计被细分为第一部分和第二部分,每个部分包括估计的至少一个相应位。 检测到第一部分的最有可能的值。 使用前向纠错(FEC)解码器处理第一部分的最可能的值,以产生校正的第一部分值,其用于检测第二部分的最可能的值。 然后由FEC解码器处理第二部分的最可能的值,以产生校正的第二部分,其与校正的第一部分组合以恢复符号的值。