Method and apparatus for transmitting high definition television programming using a digital satellite system transport and MPEG-2 packetized elementary streams (PES)
    3.
    发明授权
    Method and apparatus for transmitting high definition television programming using a digital satellite system transport and MPEG-2 packetized elementary streams (PES) 有权
    使用数字卫星系统传输和MPEG-2分组化基本流(PES)传输高清晰度电视节目的方法和装置

    公开(公告)号:US06323909B1

    公开(公告)日:2001-11-27

    申请号:US09181412

    申请日:1998-10-28

    IPC分类号: H04N9475

    摘要: A system and method for distributing high definition television (HDTV) and standard definition television (SDTV) signals via satellite is disclosed. At the transmission station an MPEG-2 video encoder compresses a video signal and a digital encoder encodes an audio signal. The compressed video and the encoded audio are coupled to PES packetizers, which generate video and audio packetized elementary data streams having PES headers and PES payloads. Within each PES header is a presentation time stamp (PTS), which is representative of the time at which the payload is to be displayed to the user. The packetized elementary data streams are multiplexed together by a transport multiplexer and repacketizer and broadcast to receiver stations, via satellite. The receiver stations receive the PES information and obtain the PTS. A receiver station multiplies the PTS by 300 and compares its local clock reference to that time. When the local clock reference and the PTS are identical, the PES audio and video information is displayed to the user according to the local clock reference.

    摘要翻译: 公开了一种通过卫星分配高分辨率电视(HDTV)和标清电视(SDTV)信号的系统和方法。 在发送站处,MPEG-2视频编码器压缩视频信号,数字编码器对音频信号进行编码。 压缩视频和编码音频耦合到PES打包器,PES分组器产生具有PES头部和PES有效载荷的视频和音频分组的基本数据流。 在每个PES头部内是呈现时间戳(PTS),其表示有效载荷将显示给用户的时间。 分组化的基本数据流由传输多路复用器和解码器复用在一起,并通过卫星广播到接收机站。 接收站接收PES信息并获得PTS。 接收站将PTS乘以300,并将其本地时钟参考值与该时间进行比较。 当本地时钟参考和PTS相同时,PES音频和视频信息根据本地时钟参考显示给用户。

    Audio video timing measurement and synchronization
    4.
    发明申请
    Audio video timing measurement and synchronization 有权
    音频视频定时测量和同步

    公开(公告)号:US20080079851A1

    公开(公告)日:2008-04-03

    申请号:US11529941

    申请日:2006-09-29

    IPC分类号: H04N9/64

    摘要: A method and apparatus for synchronizing audio and video portions of a media program signal is disclosed. In a transmitting embodiment, the method comprises the steps of identifying a video event according to an video event discriminant in the video signal, and inserting a timing signal into the audio signal, and the apparatus comprises a video analysis module for identifying a video event according to an video event discriminant in the video signal, a timing signal generator for generating a timing signal, and a mixer for inserting the timing signal into the audio signal.

    摘要翻译: 公开了一种用于同步媒体节目信号的音频和视频部分的方法和装置。 在发送实施例中,该方法包括以下步骤:根据视频信号中的视频事件判别式识别视频事件,并将定时信号插入到音频信号中,并且该装置包括视频分析模块,用于根据 视频信号中的视频事件判别式,用于产生定时信号的定时信号发生器,以及用于将定时信号插入到音频信号中的混合器。

    System and method for translating MPEG packets which include PCR data into DIRECTV packets which include RTS data
    5.
    发明授权
    System and method for translating MPEG packets which include PCR data into DIRECTV packets which include RTS data 有权
    将包含PCR数据的MPEG数据包转换成包含RTS数据的DIRECTV数据包的系统和方法

    公开(公告)号:US06744789B1

    公开(公告)日:2004-06-01

    申请号:US09669140

    申请日:2000-09-26

    申请人: James A. Michener

    发明人: James A. Michener

    IPC分类号: H04J306

    摘要: A method, apparatus, article of manufacture, and a memory structure for translating an input data packet from an input format to at least one output data packet in an output format. The method comprises the steps of reading a series of data packets in the input format, the data packets including a data type identifier, wherein at least some of the data packets include first time synchronization data and at least some of the data packets include payload data; identifying data packets of interest in the series of data packets according to data type using the data type identifier; identifying data packets from the data packets of interest having time synchronization information; generating second time synchronization information from the first time synchronization information for the data packets having time synchronization information, and generating at least one output data packet in the output data format having the second time synchronization information. In one embodiment, the method further comprises the steps of identifying data packets from the data packets of interest having payload data, and assembling at least one output data packet in the second format having the payload data.

    摘要翻译: 一种用于将输入数据分组从输入格式转换成输出格式的至少一个输出数据分组的方法,装置,制品和存储器结构。 该方法包括以下步骤:读取输入格式的一系列数据分组,数据分组包括数据类型标识符,其中至少一些数据分组包括第一时间同步数据,并且至少一些数据分组包括有效载荷数据 ; 使用数据类型标识符根据数据类型识别所述一系列数据分组中感兴趣的数据分组; 从具有时间同步信息的感兴趣的数据分组识别数据分组; 从具有时间同步信息的数据分组的第一时间同步信息生成第二时间同步信息,并且生成具有第二时间同步信息的输出数据格式的至少一个输出数据分组。 在一个实施例中,该方法还包括以下步骤:从具有有效负载数据的感兴趣的数据分组识别数据分组,以及组装具有有效载荷数据的第二格式的至少一个输出数据分组。

    Error monitoring of a Dolby Digital AC-3 bit stream
    6.
    发明授权
    Error monitoring of a Dolby Digital AC-3 bit stream 有权
    杜比数字AC-3位流的错误监控

    公开(公告)号:US07848933B2

    公开(公告)日:2010-12-07

    申请号:US11854453

    申请日:2007-09-12

    申请人: James A. Michener

    发明人: James A. Michener

    IPC分类号: G10L19/00

    CPC分类号: H04H20/89

    摘要: Methods and apparatus for broadcasting high quality audio “studio direct” with the same digital information employed in the studio by the video producer with AC-3 digital audio signals for broadcast to integrated receiver decoders (IRD). Control over individual data bits such as copyright bits is maintained by determining the bit status, comparing it to a preferred status, changing the status if it does not comply with the preferred status, and reevaluating cyclical redundancy check value in each data packet to avoid disruption in the data transmission. The system includes an uplink device which automatically checks, logs and reports errors in Dolby Digital AC-3 signals by a monitor which employs a processor, a digital audio card and an SMPTE timecode reader. The monitor employs a state machine that finds AC-3 packets, locks into the packets and detects discontinuities or loss of signal. A sound card having an input for receiving house reference AES clock pulses enables the AES clock of the playback signal to be locked to the frequency of a production house master as a time code reader or an editor's contact closure match video and audio signals playback.

    摘要翻译: 使用具有AC-3数字音频信号的视频制作人在工作室中采用的相同数字信息广播高质量音频“录音室直播”的方法和装置,用于广播到集成接收机解码器(IRD)。 通过确定比特状态,将其与优选状态进行比较,改变状态(如果不符合优选状态),并重新评估每个数据包中的循环冗余校验值以避免中断,则维护诸如版权比特之类的个别数据位的控制 在数据传输中。 该系统包括上行链路设备,其通过使用处理器,数字音频卡和SMPTE时间码读取器的监视器自动检查,记录和报告杜比数字AC-3信号中的错误。 监视器使用一个查找AC-3数据包的状态机,锁定到数据包中,并检测不连续或信号丢失。 具有用于接收房屋参考AES时钟脉冲的输入的声卡使得重放信号的AES时钟能够被锁定到生产屋主的频率,作为时间码读取器或者编辑者的接触闭合匹配视频和音频信号回放。

    Merging of multiple encoded audio-video streams into one program with source clock frequency locked and encoder clock synchronized
    7.
    发明授权
    Merging of multiple encoded audio-video streams into one program with source clock frequency locked and encoder clock synchronized 失效
    将多个编码音频视频流合并成一个程序,其中源时钟频率锁定和编码器时钟同步

    公开(公告)号:US07735111B2

    公开(公告)日:2010-06-08

    申请号:US11118926

    申请日:2005-04-29

    摘要: A system and method for merging of multiple encoded audio and video streams into a single program in the transport stream enables playback of any audio stream with any video stream. This is accomplished by first locking the frequency of audio and video input streams for a plurality of different programs to a source clock, independently encoding each program with its own PCR and PTS into a program stream, multiplexing the program streams into a transport stream, and then synchronizing the PCR and PTS of the program streams to a declared master PCR.

    摘要翻译: 用于将多个编码的音频和视频流合并到传输流中的单个节目的系统和方法使得能够利用任何视频流播放任何音频流。 这是通过首先将用于多个不同节目的音频和视频输入流的频率首先锁定到源时钟来实现的,独立地将具有其自己的PCR和PTS的每个节目编码为节目流,将节目流复用成传输流,以及 然后将程序流的PCR和PTS同步到声明的主PCR。

    Programmable video transformation rendering method and apparatus
    9.
    发明授权
    Programmable video transformation rendering method and apparatus 失效
    可编程视频变换渲染方法和装置

    公开(公告)号:US5448301A

    公开(公告)日:1995-09-05

    申请号:US248794

    申请日:1994-05-25

    申请人: James A. Michener

    发明人: James A. Michener

    CPC分类号: H04N9/74 G06T3/00 H04N5/2628

    摘要: A programmable video transformation rendering method and apparatus regenerates an arbitrary reverse address map according to a transformation function representing a desired video effect by using a set of parameters that are run length encoded. Each scan line in target space for an output image is divided into one or more continuous line segments in source space for the input image using a continuous function for each line segment. The parameters for each line segment are determined, encoded, and stored for execution of the transformation function. For each line segment the parameters are updated, with only those parameters needing updated being stored together with the prior parameters that do not need to be updated. The continuous function is in the form of a polynomial equation and is a compromise between the amount of data generated and the calculations required.

    摘要翻译: 可编程视频变换渲染方法和装置通过使用运行长度编码的一组参数,根据表示期望的视频效果的变换函数再生任意的反向地址映射。 用于输出图像的目标空间中的每个扫描线在输入图像的源空间中被划分成一个或多个连续线段,使用每个线段的连续函数。 确定,编码和存储每个线段的参数以执行变换函数。 对于每个线段,参数被更新,只有那些需要更新的参数与先前不需要更新的参数一起存储在一起。 连续函数是多项式方程的形式,是生成的数据量与所需计算之间的妥协。

    Frame format for video codec
    10.
    发明授权
    Frame format for video codec 失效
    视频编解码器的帧格式

    公开(公告)号:US4888768A

    公开(公告)日:1989-12-19

    申请号:US069682

    申请日:1987-07-06

    申请人: James A. Michener

    发明人: James A. Michener

    IPC分类号: H04J3/07 H04J3/16 H04N7/54

    CPC分类号: H04J3/1605 H04J3/07 H04N7/54

    摘要: A frame format for a video codec combines video data at a video subcarrier frequency with up to five data channels at a DS1 digital telecommunications data rate and an optional audio/telephone channel. Video data is sampled and input to a stuff FIFO at the subcarrier frequency rate and output to a multiplexer at a DS3 digital telecommunications data rate. A stuff word is generated for each DS3 data subframe and contains either a valid data bit or a garbage data bit, as indicated by a stuff flag contained in the stuff word, to compensate for the difference in input and output data rates from the stuff FIFO. The DS3 master frame generated by a multiplexer from the video data and the other data channels is transmitted and decoded at the receiving end in a reverse manner.

    摘要翻译: 用于视频编解码器的帧格式将视频副载波频率的视频数据与DS1数字电信数据速率的最多五个数据信道和可选的音频/电话信道相结合。 视频数据以子载波频率采样并输入到填充FIFO,并以DS3数字电信数据速率输出到多路复用器。 为每个DS3数据子帧产生填充字,并且包含有效数据位或垃圾数据位,如填充字中包含的填充标志所示,以补偿来自填充FIFO的输入和输出数据速率的差异 。 由多路复用器从视频数据和其他数据信道生成的DS3主帧在接收端以相反的方式发送和解码。