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    • 1. 发明授权
    • Frame synchronizing circuit for frame synchronization of digital signals
    • 帧同步电路,用于数字信号的帧同步
    • US5442405A
    • 1995-08-15
    • US172025
    • 1993-12-22
    • Kenshi TaniguchiMasatoshi TanakaNoboru MizuguchiKiyoshi Uchimura
    • Kenshi TaniguchiMasatoshi TanakaNoboru MizuguchiKiyoshi Uchimura
    • H04N7/56H04N11/04H04N5/08
    • H04N11/04H04N7/56
    • A frame synchronizing apparatus is disclosed which includes a serial-parallel converter for converting input serial data into parallel data of a plurality of channels; a plurality of intra-channel synchronization detecting circuits each for detecting a synchronization pattern and a pseudo-synchronization pattern in one channel, and generating a channel synchronization detect signal and a pseudo-synchronization detect signal in one channel; a plurality of bit-shift error pattern detecting circuits each for detecting a bit-shift error pattern in one channel, and generating a bit-shift error pattern signal in one channel; a synchronization/bit-shift error detecting circuit for detecting a synchronization between channels and specifying the amount of erroneously shifted bits, and generating a frame synchronization detect signal and bit-shift error detect signals; and a bit-shift signal generating circuit for calculating the number of erroneously shifted bits in the serial-parallel converter based on the bit-shift error detect signals and the bit-shift error pattern signals, and generating a bit-shift signal to be supplied to the serial-parallel converter, whereby bits of the calculated number are shifted.
    • 公开了一种帧同步装置,其包括用于将输入串行数据转换为多个通道的并行数据的串并转换器; 多个通道内同步检测电路,用于检测一个通道中的同步模式和伪同步模式,并在一个通道中产生通道同步检测信号和伪同步检测信号; 多个位移误差模式检测电路,用于检测一个通道中的位移误差模式,并在一个通道中产生位移误差模式信号; 用于检测通道之间的同步并指定错误位移量的同步/位移错误检测电路,以及产生帧同步检测信号和位移错误检测信号; 以及位移信号发生电路,用于根据位移误差检测信号和位移误差模式信号计算串并转换器中错误位数的数目,并产生要提供的位移信号 到串行并行转换器,由此计算出的数量的位被移位。
    • 2. 发明授权
    • HDTV signal transmssion apparatus
    • HDTV信号传输装置
    • US5444711A
    • 1995-08-22
    • US172121
    • 1993-12-21
    • Noboru MizuguchiKiyoshi UchimuraMasatoshi TanakaSeiho Kitaji
    • Noboru MizuguchiKiyoshi UchimuraMasatoshi TanakaSeiho Kitaji
    • H04N11/08H04N7/54H04N11/24H04Q11/04H04J3/00
    • H04N7/54H04J2203/0089
    • An HDTV signal transmission system for sending a 10-bit-parallel YPbPr-format HDTV signal converted to ten C4 containers, and further to the SDH (a new synchronous digital network) STM-16 frame for transmission based on CCITT recommendations. The system includes a transmitter and receiver. The transmitter has time dividers for time-based dividing the HDTV signal into eight separated video signals, a C4 container device for multiplexing the eight separated video signals to ten C4 containers, and a STM-16 framing device for reformatting the ten C4 containers to the STM-16 frame. The receiver has an STM-16 deframing device for separating the ten C4 containers from the STM-16 frame, a C4 de-container device for demultiplexing the ten C4 containers to eight separated video signals, and time-division multiplexers for time-division multiplexing the separated video signals to the 10-bit-parallel YPbPr-format HDTV signal.
    • 一种HDTV信号传输系统,用于发送10位并行YPbPr格式的HDTV信号转换为10个C4容器,并进一步提供给基于CCITT建议传输的SDH(新型同步数字网络)STM-16帧。 该系统包括发射器和接收器。 发射机具有时间分频器,用于将HDTV信号分为八个分离的视频信号,C4容器设备,用于将八个分离的视频信号复用为十个C4容器,以及STM-16成帧设备,用于将十个C4容器重新格式化为 STM-16框架。 接收机具有用于将十个C4容器与STM-16帧分离的STM-16去帧设备,用于将十个C4容器解复用为八个分离的视频信号的C4去容器设备,以及用于时分复用的时分复用器 分离的视频信号到10位并行YPbPr格式的HDTV信号。
    • 3. 发明授权
    • Video and audio signal multiplex sending apparatus, receiving apparatus
and transmitting apparatus
    • 视频和音频信号多路复用发送装置,接收装置和发送装置
    • US5929921A
    • 1999-07-27
    • US616191
    • 1996-03-15
    • Kenshi TaniguchiTomotaka TakeuchiMasatoshi Tanaka
    • Kenshi TaniguchiTomotaka TakeuchiMasatoshi Tanaka
    • H04N7/04H04N7/084H04N7/087H04N7/08
    • H04N7/04H04N7/084H04N7/087
    • The present invention provides a video and audio signal multiplex transmitting apparatus having a video and audio signal multiplex sending apparatus for grouping audio data to packets of a fixed length in the sending side, and multiplexing video and audio signals by multiplexing horizontal and vertical phase signal outputs from horizontal and vertical counters that are in synchronization with a video signal to an audio data as video phase information, and a video and audio signal multiplex receiving apparatus provided with an audio packet interpolating device for separating the signal received to video and audio signals, detecting, if any audio data is lost, a lost audio data from a data block number of the audio data and audio clock phase information, and recovering an audio clock by means of horizontal and vertical counters and the clock phase information transmitted.
    • 本发明提供一种视频和音频信号多路复用发送装置,其具有用于将音频数据分组到发送侧的固定长度的分组的视频和音频信号多路复用发送装置,并且通过复用水平和垂直相位信号输出来复用视频和音频信号 从与视频信号同步的水平和垂直计数器作为视频相位信息的音频数据;以及视频和音频信号多路复用接收装置,其具有用于将接收到的信号分离成视频和音频信号的音频分组内插装置,检测 如果任何音频数据丢失,则从音频数据的数据块号和音频时钟相位信息中丢失的音频数据,以及通过水平和垂直计数器和所发送的时钟相位信息来恢复音频时钟。