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    Compressed Video Transfer over a Multimedia Link
    1.
    发明申请
    Compressed Video Transfer over a Multimedia Link 审中-公开
    通过多媒体链接压缩视频传输

    公开(公告)号：US20150256842A1

    公开(公告)日：2015-09-10

    申请号：US14470613

    申请日：2014-08-27

    申请人： Silicon Image, Inc.

    发明人： Hoon Choi ,  Ju Hwan Yi

    IPC分类号： H04N19/463 ,  H04N19/85

    CPC分类号： H04N19/463 ,  H04L29/06027 ,  H04L29/0604 ,  H04L65/4084 ,  H04L65/607 ,  H04L69/04 ,  H04N7/025 ,  H04N7/083 ,  H04N7/084 ,  H04N7/0855 ,  H04N7/087 ,  H04N7/0881 ,  H04N19/00 ,  H04N19/85 ,  H04N19/93 ,  H04N21/234363 ,  H04N21/2662 ,  H04N21/43635 ,  H04N21/440263

    摘要： A transmitting device for communicating via a multimedia communication link includes link layer circuitry to receive video data and to compress the video data into compressed video data. The transmitting device also includes a compression information circuit that generates video compression control information describing compression of the video data. The transmitting device further includes an interface that transmits signals corresponding to the compressed video data via one or more multimedia channels of the multimedia communication link and to transmit signals corresponding to the video compression control information via the multimedia communication link.

    摘要翻译： 用于经由多媒体通信链路进行通信的发送装置包括接收视频数据的链路层电路，并将视频数据压缩为压缩视频数据。 发送装置还包括产生描述视频数据的压缩的视频压缩控制信息的压缩信息电路。 发送装置还包括通过多媒体通信链路的一个或多个多媒体信道发送对应于压缩视频数据的信号并经由多媒体通信链路发送对应于视频压缩控制信息的信号的接口。

    Signal conversion system with time base compression of the input data
    2.
    发明授权
    Signal conversion system with time base compression of the input data 失效
    信号转换系统与输入数据的时基压缩

    公开(公告)号：US3676862A

    公开(公告)日：1972-07-11

    申请号：US3676862D

    申请日：1971-06-30

    申请人： MATSUSHITA ELECTRIC IND CO LTD

    发明人： SASABE KAORU

    IPC分类号： H04N1/00 ,  H04N7/085 ,  H04N7/088 ,  G06F5/06

    CPC分类号： H04N1/00095 ,  H04N7/0855 ,  H04N7/088 ,  H04N7/0881

    摘要： A signal conversion system in which coded signal pulses to be transmitted to a remote place, for example, pulses of coded facsimile signal, are stored in at least one shift register in synchronization with clock pulses and said signal pulses stored in the shift register are let out by quickening the shift cycle of the shift register when a predetermined number of said signal pulses have been entered in the shift register, thereby providing compressed and discrete sequences of signal pulses which can be put in, for example, the horizontal or the vertical flyback interval of a television signal to be transmitted through the latter''s transmission channel.

    摘要翻译： 一种信号转换系统，其中要发送到远程位置的编码信号脉冲，例如编码传真信号的脉冲，与时钟脉冲同步地存储在至少一个移位寄存器中，并且存储在移位寄存器中的所述信号脉冲被允许 通过在移位寄存器中输入预定数量的所述信号脉冲时，通过加快移位寄存器的移位周期，从而提供可以放置在例如水平或垂直反激的信号脉冲的压缩和离散序列 通过后者的传输信道发送的电视信号的间隔。

    Method and apparatus for maintaining audio/ video synchronism in a television signal read-out from a digital buffer memory by a reference signal
    3.
    发明授权
    Method and apparatus for maintaining audio/ video synchronism in a television signal read-out from a digital buffer memory by a reference signal 失效
    用于通过参考信号从数字缓冲存储器读出的电视信号中保持音频/视频同步的方法和装置

    公开(公告)号：US4851909A

    公开(公告)日：1989-07-25

    申请号：US245916

    申请日：1988-09-16

    申请人： Reiner Noske ,  Hans-Peter Richter ,  Jurgen Heitmann

    发明人： Reiner Noske ,  Hans-Peter Richter ,  Jurgen Heitmann

    IPC分类号： G11B20/02 ,  H04N5/04 ,  H04N5/91 ,  H04N7/085 ,  H04N7/54

    CPC分类号： H04N21/4305 ,  H04N5/04 ,  H04N7/0855 ,  H04N7/54

    摘要： Both the analog and the video component of a television signal are converted to digital form, the audio component being converted at a much lower sample rate with a word length which is an integral multiple of the video word length. The digital audio component is then compressed by use of a temporary memory and read-out therefrom at a rate that is half of the sample rate of the digtal video component, after which the word length is halved and the word rate doubled in a shift register circuit. In that form the audio component is inserted in horizontal blanking intervals of the video component in a compatible form by a multiplexer, the output of which is read into a single picture field or full picture memory under control of an address generator clocked in synchronism with the incoming video component. The buffer memory is read-out at a rate controlled by a reference signal such as is used for synchronism in a television studio. On the output side the digital video and audio components of the television signal are separated by a demultiplexer, the audio word length is doubled and the word rate halved and the still compressed audio signal is expanded, to make available a substantially continuous digital component. The audio component can then be converted to analog form and will be correctly timed for accompanying the digital video component converted to analog form at the output of the demultiplexer. Separate audio signal delay circuits are thus avoided by the use of relatively simple multiplexing circuits and audio processing circuits.

    摘要翻译： 电视信号的模拟和视频分量均被转换成数字形式，音频分量被转换成低得多的采样率，其字长是视频字长度的整数倍。 数字音频分量然后通过使用临时存储器并以其数字视频分量的采样率的一半的速率被读出来压缩，之后字长减半，并且字速率在移位寄存器中翻倍 电路。 在这种形式中，音频分量以兼容形式以视频分量的水平消隐间隔被多路复用器插入，其多路复用器的输出被读入同一个地址发生器的控制下的单个画面或全画面存储器 传入的视频组件。 缓冲存储器以由诸如用于电视演播室中的同步的参考信号控制的速率读出。 在输出侧，电视信号的数字视频和音频分量由解复用器分离，音频字长度加倍，字速减半，并且静止压缩的音频信号被扩展，以提供基本连续的数字分量。 然后可以将音频分量转换成模拟形式，并且将被正确定时，以便在多路分解器的输出处伴随转换成模拟形式的数字视频分量。 因此，通过使用相对简单的多路复用电路和音频处理电路来避免单独的音频信号延迟电路。

    Signal transmission system, signal transmitter, and signal receiver
    5.
    发明授权
    Signal transmission system, signal transmitter, and signal receiver 有权
    信号传输系统，信号发射机和信号接收机

    公开(公告)号：US07327381B2

    公开(公告)日：2008-02-05

    申请号：US10130694

    申请日：2001-09-25

    申请人： Hidekazu Suzuki

    发明人： Hidekazu Suzuki

    IPC分类号： H04N7/14

    CPC分类号： H04N7/0855 ,  H04N7/083 ,  H04N7/088

    摘要： A signal transmission system has a signal transmission apparatus including a time-base compression unit for time-base-compressing an audio signal, and a multiplexing unit for time-division-multiplexing a control signal and the time-base-compressed audio signal in a blanking period of a video signal. The signal transmission apparatus transmits the time-division-multiplexed signal through a transmission path. The signal transmission system also has a signal reception apparatus including a demultiplexing unit for demultiplexing the signal in which the video signal, the control signal, and the time-base-compressed audio signal are time-division-multiplexed. The multiplexed signal is transmitted from the signal transmission apparatus to the signal reception apparatus and demultiplexed into the video signal, the control signal, and the time-base-compressed audio signal, respectively, and a time-base decompression unit for decompressing the time-base-compressed audio signal.

    摘要翻译： 信号传输系统具有信号传输装置，包括用于对音频信号进行时基压缩的时基压缩单元，以及复用单元，用于对控制信号和时基压缩音频信号进行时分多路复用 视频信号的消​​隐期。 信号发送装置通过发送路径发送时分多路复用信号。 信号传输系统还具有信号接收装置，其包括：解复用单元，用于对视频信号，控制信号和时基压缩音频信号进行时分复用的信号进行解复用。 复用信号从信号发送装置发送到信号接收装置，并分别解码成视频信号，控制信号和时基压缩音频信号，时分解压缩单元用于解压缩时间 - 基本压缩音频信号。

    Inclusion of audio signal within video signal
    6.
    发明授权
    Inclusion of audio signal within video signal 失效
    视频信号中包含音频信号

    公开(公告)号：US5751366A

    公开(公告)日：1998-05-12

    申请号：US522625

    申请日：1995-08-31

    申请人： Gary Lamont Hobbs

    发明人： Gary Lamont Hobbs

    IPC分类号： H04N7/04 ,  H04N7/045 ,  H04N7/085 ,  H04N7/12 ,  H04N7/084

    CPC分类号： H04N7/122 ,  H04N7/04 ,  H04N7/0855

    摘要： A system for including audio data within a video signal. The number of frames of video data transmitted is reduced, thereby allowing greater time for each individual frame, thereby allowing the breezeway of each line of each frame to be lengthened. The breezeway resides between the horizontal synch pulse for the line, and the color burst signal. Samples of digitized audio are placed into the breezeways.

    摘要翻译： 一种用于在视频信号中包括音频数据的系统。 传输的视频数据的帧数减少，从而允许每个单独帧的更大的时间，从而允许每帧的每一行的竖排被延长。 清除线位于线路的水平同步脉冲和色同步信号之间。 将数字化音频的样品放入breezeways。

    Pseudo-digital compression of video signals
    7.
    发明授权
    Pseudo-digital compression of video signals 失效
    视频信号的伪数字压缩

    公开(公告)号：US5570131A

    公开(公告)日：1996-10-29

    申请号：US328672

    申请日：1994-10-25

    申请人： H. George Pires

    发明人： H. George Pires

    IPC分类号： H04N7/08 ,  H04N7/085 ,  H04N11/02 ,  H04N11/08 ,  H04N7/26

    CPC分类号： H04N7/0806 ,  H04N11/02 ,  H04N11/08 ,  H04N7/0855

    摘要： A system for transmitting multiple video signals via a single video channel, each video signal having a luminance component in respective sequential horizontal line periods. Luminance components of the video signals are separated and compressed. An output video signal having sequential output horizontal line periods is formed and the compressed luminance components are inserted in the output horizontal line periods. Chroma components are compressed by a higher compression factor and inserted in the blanking intervals. The two color video signals are compressed into one standard 4.2 MHz channel, permitting the system to replace directly any existing 6 MHz audio/video transmission system. An encoder aspect of the invention combines plural video source channels to form an output video channel for transmission, using first and second decoders for separating the input video signal into respective luminance and chroma signals. A compressor compresses the luminance and chroma signals, and a multiplexer selects alternately between the decoders. A decoder system extracts the video channels from the encoded video signal. An analog-to-digital converter issues luminance digital data corresponding to a luminance component of the encoded video signal. A luminance expander expands the luminance digital data, and a demultiplexer alternately produces portions of the time-expanded luminance digital data corresponding to respective ones of the video channels. Sync information is regenerated at the decoders from the vertical sync pulses which are left intact in the transmitted signal. Interpolated chroma information is provided to reconstructed video channels.

    摘要翻译： 一种用于经由单个视频信道发送多个视频信号的系统，每个视频信号具有各个顺序水平行周期中的亮度分量。 视频信号的亮度分量被分离和压缩。 形成具有顺序输出水平行周期的输出视频信号，并将压缩亮度分量插入输出水平行周期。 色度分量由较高的压缩因子压缩并插入消隐间隔。 双色视频信号被压缩成一个标准的4.2MHz信道，允许系统直接替换现有的6MHz音频/视频传输系统。 本发明的编码器方面结合了多个视频源通道以形成用于传输的输出视频通道，使用第一和第二解码器将输入视频信号分离成各自的亮度和色度信号。 压缩器压缩亮度和色度信号，并且多路复用器在解码器之间交替选择。 解码器系统从编码视频信号中提取视频信道。 模数转换器发出对应于编码视频信号的亮度分量的亮度数字数据。 亮度扩展器扩展亮度数字数据，并且解复用器交替地产生对应于各个视频信道的时间扩展亮度数字数据的部分。 同步信息在解码器处从在发送信号中保持原样的垂直同步脉冲再生。 插值色度信息被提供给重建的视频通道。