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    DIGITAL COMMUNICATION METHOD AND DIGITAL COMMUNICATION DEVICE
    2.
    发明公开
    DIGITAL COMMUNICATION METHOD AND DIGITAL COMMUNICATION DEVICE 审中-公开
    方法和设备用于数字通信

    公开(公告)号：EP1551103A4

    公开(公告)日：2006-10-18

    申请号：EP03748684

    申请日：2003-10-02

    申请人： YOKOHAMA TLO COMPANY LTD ,  NAKAMURA MAKOTO

    发明人： NAKAMURA MAKOTO

    IPC分类号： H03M7/06 ,  H03M13/21 ,  H03M13/23 ,  H03M13/25 ,  H04L1/00 ,  H04L1/24 ,  H04L25/49 ,  H04L27/20 ,  H04L27/233 ,  H04L27/28 ,  H04L27/18

    CPC分类号： H03M13/3983 ,  H03M13/235 ,  H03M13/256 ,  H04L1/0054 ,  H04L1/0059 ,  H04L27/2057 ,  H04L27/2332

    摘要： A digital communication device includes: a modulator having encoding means for converting two-dimensional digital information signal into a three-dimensional signal and phase modulation means for modifying the carrier phase in according to the three-dimensional signal; and a demodulator having phase demodulation means for detecting information on the three-dimensional signal from the received phase-modulated wave and demodulation means for deciding the two-dimensional digital information from the information on the three-dimensional signal. The digital communication device has a bit error ratio and an occupied radio band width equivalent to a digital communication device using the conventional QPSK or π/4 shift QPSK and the error correction method and greatly improves the amplitude fluctuation. Moreover, the digital communication device can transmit a signal with a narrower occupied frequency band width while maintaining the same constant envelope characteristic as the GMSK using the conventional error correction code.

    Process for decoding of non-linear codes
    3.
    发明公开
    Process for decoding of non-linear codes 审中-公开
    Verfahren zur Dekodierung von nichtlinearen代码

    公开(公告)号：EP1294108A1

    公开(公告)日：2003-03-19

    申请号：EP01810877.9

    申请日：2001-09-11

    申请人： Ascom Systec AG

    发明人： Maucher, Johannes, Dr. Ing.

    IPC分类号： H04B7/26 ,  H03M13/21

    CPC分类号： H03M13/21

    摘要： In a process for decoding of non-linear codes in digital data transmission, fulfilling the condition of rectangularity, the Viterbi algorithm is used in a trellis of the code with a minimal number of edges and vertices, thus decreasing the number of necessary operations. The process may be applied especially to synchronization of telecommunication systems, namely to UMTS cell search. A distance-dependent merging algorithm may efficiently generate a minimal trellis of a given code. A storage means (11) contains the minimal trellis of the code occurring at code group determination and frame synchronization allowing for applying the Viterbi-decoding algorithm using calculation means (10) and (13).

    摘要翻译： 在数字数据传输中解码非线性码的过程中，满足矩形条件，维特比算法用于具有最小数目的边缘和顶点的代码网格，从而减少必要的操作次数。 该过程可以特别地应用于电信系统的同步，即UMTS小区搜索。 距离相关合并算法可以有效地生成给定代码的最小格状。 存储装置（11）包含在代码组确定和帧同步时发生的代码的最小格状，允许使用计算装置（10）和（13）应用维特比解码算法。

    METHOD AND SYSTEM FOR REDUCING INTER-SYMBOL INTERFERENCE EFFECTS IN TRANSMISSION OVER A SERIAL LINK WITH MAPPING OF EACH WORD IN A CLUSTER OF RECEIVED WORDS TO A SINGLE TRANSMITTED WORD
    7.
    发明授权
    METHOD AND SYSTEM FOR REDUCING INTER-SYMBOL INTERFERENCE EFFECTS IN TRANSMISSION OVER A SERIAL LINK WITH MAPPING OF EACH WORD IN A CLUSTER OF RECEIVED WORDS TO A SINGLE TRANSMITTED WORD 有权
    方法和系统减少了传输符号寄生以串行线下的影像的每一个字在一个集群中接收的字上呈现一个单字

    公开(公告)号：EP1330910B1

    公开(公告)日：2008-06-11

    申请号：EP02759623.8

    申请日：2002-09-11

    申请人： Silicon Image, Inc.

    发明人： HWANG, Seung, Ho ,  BANKS, Jano ,  WOLF, Paul, Daniel ,  LEE, Eric ,  SHEET, William ,  SCALISE, Albert, M.

    IPC分类号： H04M1/64 ,  H04B7/12 ,  H04L1/00 ,  H04L25/49 ,  H03M13/21 ,  H03M13/31 ,  H04N7/12

    CPC分类号： H04L1/0057 ,  G09G5/006 ,  H04L1/203 ,  H04L1/206 ,  H04L25/49 ,  H04N19/89

    摘要： A communication system including a transmitter (1'), a receiver (2'), and a serial link, in which encoded data (e.g., encoded video data and encoded auxiliary data) are transmitted from the transmitter (1') to the receiver (2'). The serial link can but need not be a TMDS or TMDS-like link. In typical embodiments, alternating bursts of encoded video data and auxiliary data are transmitted over each of one or more channels of the link. Other aspects of the invention are transmitters for use in encoding data for transmission over a serial link, receivers for receiving such data, and methods for sending encoded data over a serial link. In accordance with the invention, source data to be transmitted are encoded using a subset of a full set of code words. The subset consist of preferred code words. The preferred words are predetermined such that each encoded data stream (comprising only preferred words) transmitted over a serial link has a bit pattern that is less susceptible to inter-symbol interference ("ISI") during transmission than is the bit pattern determined by a conventionally encoded version of the same data (comprising not only preferred words but also other members of the full set). Disjoint clusters of code words in the full set are predetermined. Each cluster includes one or more of the preferred words, and optionally also at least one additional code word that is similar to a preferred word of the cluster in the sense that is likely to be generated as a result of probable bit errors in transmission, or transmission and decoding, of such preferred word. In some embodiments, the preferred words have serial bit patterns (during transmission) that have fewer contiguous zeros and ones (and thus are less susceptible to ISI during transmission) than do code words in the full set that are not preferred words.

    ENCODING DEVICE, ENCODING METHOD, DECODING DEVICE, DECODING METHOD, AND PROGRAM
    9.
    发明公开
    ENCODING DEVICE, ENCODING METHOD, DECODING DEVICE, DECODING METHOD, AND PROGRAM 审中-公开

    公开(公告)号：EP4024797A1

    公开(公告)日：2022-07-06

    申请号：EP20858509.1

    申请日：2020-06-30

    申请人： Sony Semiconductor Solutions Corporation

    发明人： SUGIOKA Tatsuya ,  HYAKUDAI Toshihisa ,  UNUMA Masayuki ,  OKAZAWA Daisuke ,  KIMURA Aritoshi ,  SHIROSHITA Hiroshi

    IPC分类号： H04L25/49 ,  H03M7/14 ,  H03M13/21 ,  H04L1/00

    摘要： The technology relates to an encoding device, an encoding method, a decoding device, a decoding method, and a program enabling encoding with favorable transmission efficiency with a controlled running disparity.
    A calculation section divides inputted data into N or M bits to calculate a first running disparity of an N or M bit data string. A determination section determines whether the data string is inverted based on the first running disparity calculated by the calculation section and a second running disparity calculated therebefore. An addition section inverts or non-inverts the data string based on a determination result by the determination section to add a flag indicating the determination result for outputting. The determination section determines not to perform inversion when the data string is a control code. The addition section adds the flag assigned to the control code. The technology is applicable to a device communicating in an SLVS-EC specification.