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    • 12. 发明授权
    • Method for generating 2D OVSF codes in multicarrier DS-CDMA systems
    • 用于在多载波DS-CDMA系统中生成2D OVSF码的方法
    • US07197007B2
    • 2007-03-27
    • US10063771
    • 2002-05-11
    • Guu-Chang YangChia-Ming YangPei-Hsuan Lin
    • Guu-Chang YangChia-Ming YangPei-Hsuan Lin
    • H04J11/00
    • H04J13/0044H04J13/12H04L5/026
    • A code tree of two-dimensional orthogonal variable spreading factor (2D-OVSF) code matrices for a multicarrier direct-sequence code-division multiple-access (MC-DS/CDMA) communications system is generated by providing two sets of 2×2 orthogonal matrices {A(1)(2×2), A(2)(2×2)} and {B(1)(2×2), B(2)(2×2)}. The first set of 2×2 matrices is used to generate a pair of sibling nodes in the code tree that respectively represent matrices A(1)(2×2α) and A(2)(2×2α) by iterating the relationship: A(1)(2×21+β)=[A(1)(2×2β)A(2)(2×2β)], The matrices A(1)(2×2α) and A(2)(2×2α) are A(2)(2×21+β)=[A(1)(2×2β)−A(2)(2×2β)]. used to generate a child node of one of the sibling nodes. The child node contains an M×N matrix, which is found by iterating the relationship: A(i−1)(O×P)=[B(1)(2×2){circle around (×)}A(i/2)(0/2×P/2)] where {circle around (×)} indicates a Kronecker product. A(i)(O×P)=[B(2)(2×2){circle around (×)}A(i/2)(0/2×P/2)],
    • 通过提供两组2x2正交矩阵来生成用于多载波直接序列码分多址(MC-DS / CDMA)通信系统的二维正交可变扩频因子(2D-OVSF)码矩阵的码树 (2)/(2×2),(2×2),和(B) (1)(2x2),(2)(2x2)}。 第一组2x2矩阵用于在代码树中产生一对分别表示矩阵A 1(2)和(2)的兄弟节点 < / SUP2>< / SUB>< / SUP>< / SUP>(2) SUB>
    • 19. 发明授权
    • Method for detecting digital video interface off-line mode and associated receiver
    • 检测数字视频接口离线模式和相关接收机的方法
    • US08041845B2
    • 2011-10-18
    • US12115239
    • 2008-05-05
    • Chia-Ming YangHuimin Tsai
    • Chia-Ming YangHuimin Tsai
    • G06F3/00H04N5/63
    • G06F1/3203G06F1/3265Y02D10/153
    • A TMDS receiver includes a plurality of data channels, a clock channel, and an off-line mode detector. Each data channel receives a video signal and the clock channel receives a clock signal. Each data channel comprises a channel decoder for decoding the signals received by the corresponding receiving channel. The off-line mode detector detects an off-line mode detector, and then turns on a plurality of first data channels for a first predetermined period to determine an operation mode of video signal transmitted on said first data channels if the activity of the clock signal is valid. The off-line mode detector also activates a plurality of second data channels among the plurality of data channels according to the operation mode if the operation mode is determined as valid.
    • TMDS接收机包括多个数据信道,时钟信道和离线模式检测器。 每个数据通道接收视频信号,时钟信道接收时钟信号。 每个数据信道包括用于对由相应接收信道接收的信号进行解码的信道解码器。 离线模式检测器检测离线模式检测器,然后在第一预定周期内接通多个第一数据信道,以确定在所述第一数据信道上发送的视频信号的操作模式,如果时钟信号的活动 已验证。 如果操作模式被确定为有效,则离线模式检测器还根据操作模式激活多个数据通道中的多个第二数据通道。