公开(公告)号：US5703877A

公开(公告)日：1997-12-30

申请号：US562611

申请日：1995-11-22

申请人： Ray Nuber ,  Paul Moroney ,  G. Kent Walker

发明人： Ray Nuber ,  Paul Moroney ,  G. Kent Walker

IPC分类号： G10L19/00 ,  H04N7/24 ,  H04N7/52 ,  H04N19/895 ,  H04N21/234 ,  H04N21/236 ,  H04N21/2368 ,  H04N21/43 ,  H04N21/434 ,  H04N21/439 ,  H04N21/44 ,  H04N21/81 ,  H04J3/06 ,  H04N7/12

CPC分类号： H04N21/4392 ,  H04N19/895 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/4341 ,  H04N21/8106 ,  G10L19/005

摘要： Audio data is processed from a packetized data stream carrying digital television information in a succession of fixed length transport packets. Some of the packets contain a presentation time stamp (PTS) indicative of a time for commencing the output of associated audio data. After the audio data stream has been acquired, the detected audio packets are monitored to locate subsequent PTS's for adjusting the timing at which audio data is output, thereby providing proper lip synchronization with associated video. Errors in the audio data are processed in a manner which attempts to maintain synchronization of the audio data stream while masking the errors. In the event that the synchronization condition cannot be maintained, for example in the presence of errors over more than one audio frame, the audio data stream is reacquired while the audio output is concealed. An error condition is signaled to the audio decoder by altering the audio synchronization word associated with the audio frame in which the error has occurred.

摘要翻译： 音频数据从一系列固定长度传输分组携带数字电视信息的打包数据流处理。 一些分组包含指示用于开始相关联的音频数据的输出的时间的演示时间戳（PTS）。 在获取音频数据流之后，监视检测到的音频分组以定位用于调整输出音频数据的定时的后续PTS，从而与相关联的视频提供适当的唇同步。 音频数据中的错误以尝试保持音频数据流的同步同时掩盖错误的方式被处理。 在不能保持同步条件的情况下，例如在存在多于一个音频帧的错误的情况下，音频数据流被重新获取，同时音频输出被隐藏。 通过改变与发生错误的音频帧相关联的音频同步字，向音频解码器发出错误状况。

公开(公告)号：US5612956A

公开(公告)日：1997-03-18

申请号：US573227

申请日：1995-12-15

申请人： G. Kent Walker ,  Paul Moroney ,  Ray Nuber

发明人： G. Kent Walker ,  Paul Moroney ,  Ray Nuber

IPC分类号： H04J3/06 ,  H04L7/00 ,  H04L7/02 ,  H04L7/04 ,  H04L13/08 ,  H04L25/49 ,  H04L29/06 ,  H04N5/00 ,  H04N7/10 ,  H04N19/00 ,  H04N21/4147 ,  H04N21/4363 ,  H04N21/4402 ,  H04J3/22 ,  H04J3/26

CPC分类号： H04N21/4147 ,  H04J3/0632 ,  H04L2007/045 ,  H04L7/0066

摘要： Variable rate data is reformatted for communication to an external device at a fixed rate. Fixed length packets of the variable rate data are recovered from a multiplex of data packets. A packet start byte is added to the beginning of each of the recovered packets. Fill bits are added to the recovered packets as necessary to maintain the desired fixed output rate if the output rate is greater than an information rate of the variable rate data. The recovered packets with the added packet start byte and fill bits are provided as output to the external device at the fixed rate. The recovered packets with the added packet start byte and fill bits are advantageously encoded using alternate mark inversion (AMI) and binary eight zero substitution (B8ZS). The packet start byte and B8ZS substitution can comprise unique AMI violation sequences.

摘要翻译： 可变速率数据被重新格式化以便以固定速率与外部设备通信。 可变速率数据的固定长度分组从数据分组的复用中恢复。 分组开始字节被添加到每个恢复的分组的开头。 如果输出速率大于可变速率数据的信息速率，填充位将根据需要添加到恢复的数据包中，以保持所需的固定输出速率。 具有添加的分组开始字节和填充比特的恢复分组以固定速率提供给外部设备的输出。 具有添加的分组开始字节和填充比特的恢复的分组有利地使用交替标记反转（AMI）和二进制八进制零替换（B8ZS）进行编码。 分组起始字节和B8ZS替换可以包括唯一的AMI违例序列。

公开(公告)号：US6160587A

公开(公告)日：2000-12-12

申请号：US887046

申请日：1997-07-02

申请人： G. Kent Walker ,  Ray Nuber

发明人： G. Kent Walker ,  Ray Nuber

IPC分类号： H04N7/088 ,  H04N21/236 ,  H04N21/434 ,  H04N7/00 ,  H04N7/04 ,  H04N11/00

CPC分类号： H04N7/088 ,  H04N21/235 ,  H04N21/435

摘要： A digital waveform generator complies with different vertical blanking interval (VBI) standards, and is inserted into VBI portions of a digital component video signal. A buffer receives symbols carrying VBI data for a particular VBI service according to a user data syntax, which identifies a television line into which the VBI data is to be inserted. A symbol processor is responsive to information provided by the syntax. This information indicates the number of pixels represented per symbol, a symbol transition time, and the number of symbols carrying data to be inserted into the VBI portion. The symbol processor provides the VBI data in a format according to the particular VBI service. A timing circuit is responsive to a start time provided by the syntax for inserting the VBI data. A level control circuit adjusts the level of the VBI data prior to insertion into the VBI portion in response amplitude values provided by the syntax.

摘要翻译： 数字波形发生器符合不同的垂直消隐间隔（VBI）标准，并被插入到数字分量视频信号的VBI部分。 缓冲器根据用户数据语法接收携带用于特定VBI服务的VBI数据的符号，该用户数据语法标识要插入VBI数据的电视线。 符号处理器响应于由语法提供的信息。 该信息表示每符号表示的像素数，符号转换时间以及携带要插入到VBI部分中的数据的符号数。 符号处理器根据特定的VBI服务以格式提供VBI数据。 定时电路响应于用于插入VBI数据的语法提供的开始时间。 在由语法提供的响应振幅值中，电平控制电路在插入VBI部分之前调整VBI数据的电平。

公开(公告)号：US5742623A

公开(公告)日：1998-04-21

申请号：US678108

申请日：1996-07-11

申请人： Ray Nuber ,  Paul Moroney

发明人： Ray Nuber ,  Paul Moroney

IPC分类号： H04L29/06 ,  H04N7/52 ,  H04N7/54 ,  H04N7/56 ,  H04N19/895 ,  H04L1/00 ,  H04L7/00

CPC分类号： H04L65/80 ,  H04L29/06 ,  H04N19/895 ,  H04N21/4307 ,  H04N21/4343 ,  H04N21/4348 ,  H04N7/52 ,  H04N7/54 ,  H04N7/56 ,  H04L29/06027

摘要： Error recovery is provided for isochronous data ("isodata") obtained from a data stream. Isodata transport packets are monitored to locate isodata presentation time stamps (PTSs). The presentation of isodata from a buffer is synchronized to a system time clock (STC) using timing information derived from the PTSs. Discontinuity errors between said isodata transport packets are identified and, if a discontinuity of no more than one packet is identified, a write pointer of the buffer is advanced by a suitable number of bits to compensate for the discontinuity, while maintaining the synchronization of the presentation with respect to the STC. Additional error detection and recovery techniques are disclosed, including the maintenance of a presentation unit counter, the use of a PTE extension and PTS offset to verify output timing, the provision of a pair of PTS pointers verifying correct output data timing, the use of a packet elementary stream (PES) count to detect lost data in the transport stream, and the detection and discarding of packets designated as encrypted after any decryption should have already been completed.

摘要翻译： 为从数据流获取的同步数据（“isodata”）提供错误恢复。 监视Isodata传输数据包以查找isodata演示时间戳（PTS）。 使用从PTS导出的定时信息将来自缓冲器的isodata的呈现同步到系统时钟（STC）。 识别所述异点传输分组之间的不连续性错误，并且如果识别出不超过一个分组的不连续性，则缓冲器的写指针将以适当数量的比特前进，以补偿不连续性，同时保持呈现的同步 对于STC。 公开了附加的错误检测和恢复技术，包括维护表示单元计数器，使用PTE扩展和PTS偏移来验证输出定时，提供验证正确的输出数据定时的一对PTS指针，使用 分组基本流（PES）计数以检测传输流中的丢失数据，并且在任何解密之后指定为加密的分组的检测和丢弃应该已经完成​​。

公开(公告)号：US5598415A

公开(公告)日：1997-01-28

申请号：US511266

申请日：1995-08-04

申请人： Ray Nuber ,  Paul Moroney

发明人： Ray Nuber ,  Paul Moroney

IPC分类号： H04L29/06 ,  H04N7/52 ,  H04N7/54 ,  H04N7/56 ,  H04N19/895 ,  H04J3/00

CPC分类号： H04L65/80 ,  H04L29/06 ,  H04N19/895 ,  H04N21/23614 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/4348 ,  H04N7/52 ,  H04N7/54 ,  H04N7/56 ,  H04L29/06027

摘要： A scheme is provided for communicating high rate isochronous data in an MPEG-2 type transport stream in a robust manner. The syntax for the data bitstream also provides for the communication of a data clock increment value to a decoder. The increment value enables a simplified and cost effective approach to the direct digital synthesis of a clock frequency necessary to recover data from the packetized data stream at the decoder. The time resolution for presenting isochronous data presentation units at the decoder is increased by providing a presentation time stamp (PTS) extension to supplement a standard MPEG-2 PTS.

摘要翻译： 提供了一种用于以鲁棒方式传送MPEG-2类型传输流中的高速同步数据的方案。 数据比特流的语法还提供数据时钟增量值到解码器的通信。 递增值使得能够简化和成本有效的方法来直接数字合成从解码器处的分组化数据流恢复数据所需的时钟频率。 通过提供用于补充标准MPEG-2PTS的呈现时间戳（PTS）扩展来增加在解码器处呈现等时数据呈现单元的时间分辨率。

公开(公告)号：US06400767B1

公开(公告)日：2002-06-04

申请号：US09156484

申请日：1998-09-18

申请人： Ray Nuber ,  G. Kent Walker

发明人： Ray Nuber ,  G. Kent Walker

IPC分类号： H04N7025

CPC分类号： H04N19/89 ,  H04N19/107 ,  H04N19/61

摘要： A method and apparatus are provided for communicating HBI user information in digital television data streams via a generic syntax. The syntax allows the digital transport of virtually any type of user data that may be carried in the HBI or overscan portion of an analog television signal. A pixel generator is used to insert HBI data into a digital video signal using information provided in the user portion of the digital data stream. The syntax provides the pixel generator with the start time of the first symbol, the number of pixels per symbol, the high and low levels to insert, the fraction of the symbol time that is transition time, the number of symbols to insert and the first frame line number on which to insert the data.

摘要翻译： 提供了一种通过通用语法在数字电视数据流中传送HBI用户信息的方法和装置。 该语法允许数字传输几乎可以在模拟电视信号的HBI或过扫描部分中携带的任何类型的用户数据。 像素生成器用于使用在数字数据流的用户部分中提供的信息将HBI数据插入到数字视频信号中。 语法为像素生成器提供第一个符号的开始时间，每个符号的像素数，插入的高电平和低电平，转换时间的符号时间的分数，插入的符号数和第一个 要插入数据的帧行号。

公开(公告)号：USRE37620E1

公开(公告)日：2002-04-02

申请号：US09464249

申请日：1999-12-16

申请人： Ray Nuber ,  Paul Moroney ,  Chris Hoogenboom

发明人： Ray Nuber ,  Paul Moroney ,  Chris Hoogenboom

IPC分类号： H04N7025

CPC分类号： H04N19/00 ,  H04N5/4401 ,  H04N7/088 ,  H04N7/0885 ,  H04N19/61 ,  H04N19/70 ,  H04N21/435 ,  H04N21/4621 ,  H04N21/4884

摘要： A method and apparatus are provided for communicating VBI user information for digital television. A syntax is provided which allows the transport of closed captions, non-realtime video, sampled video and AMOL. Non-realtime video can be used to transport various types of data, such as a vertical interval test signal (VITS) through the system at full resolution. The provision in the syntax of a count for each type of VBI user information enables the adjustment of a digital television data stream to accommodate variable amounts and types of such information without space being reserved in advance. The provision of a priority number in the syntax enables decoders to discard VBI user information priorities which are not supported by the particular decoder.

摘要翻译： 提供了一种用于传送数字电视的VBI用户信息的方法和装置。 提供了一种语法，允许传输隐藏式字幕，非实时视频，采样视频和AMOL。 非实时视频可用于通过系统以全分辨率传输各种类型的数据，如垂直间隔测试信号（VITS）。 用于每种类型的VBI用户信息的计数语法的提供使得能够调整数字电视数据流以适应可变数量和类型的这种信息，而没有预先保留的空间。 在语法中提供优先权号码使解码器能够丢弃特定解码器不支持的VBI用户信息优先级。

公开(公告)号：US6101368A

公开(公告)日：2000-08-08

申请号：US812435

申请日：1997-03-07

申请人： Brad Farnsworth ,  Ray Nuber ,  Allen Shumate

发明人： Brad Farnsworth ,  Ray Nuber ,  Allen Shumate

IPC分类号： H04N5/44 ,  H04H1/00 ,  H04N5/91 ,  H04N7/10

CPC分类号： H04N5/4401 ,  H04N21/42207 ,  H04N21/42219

摘要： An interface for a communications receiver such as a cable or satellite television receiver allows control between the receiver and an external device. The external device can supplement the services provided by the receiver. The interface includes a bidirectional control port for coupling the external device to the communications receiver. Ports for isochronous data and high speed data are also provided. The external device can simulate commands available via a user interface for the receiver, such as remote control actuations. In this manner, the external device can access information and control the receiver (e.g., to tune to a specific television or data channel) via the bidirectional control port. The interface enables the external device to use the full capabilities of the communication receiver for data acquisition and processing. The acquired and processed data is then delivered to the external device via the interface.

摘要翻译： 用于诸如有线或卫星电视接收机之类的通信接收机的接口允许接收机和外部设备之间的控制。 外部设备可以补充接收机提供的服务。 该接口包括用于将外部设备耦合到通信接收器的双向控制端口。 还提供了同步数据和高速数据的端口。 外部设备可以模拟通过接收器的用户界面可用的命令，例如远程控制启动。 以这种方式，外部设备可以通过双向控制端口访问信息并控制接收机（例如，调谐到特定的电视或数据信道）。 该接口使外部设备能够使用通信接收器的全部功能进行数据采集和处理。 然后，通过接口将获取和处理的数据传送到外部设备。

公开(公告)号：US5844615A

公开(公告)日：1998-12-01

申请号：US783432

申请日：1997-01-16

申请人： Ray Nuber ,  Kent Walker

发明人： Ray Nuber ,  Kent Walker

IPC分类号： H04N7/083 ,  H04N7/087 ,  H04N7/088 ,  H04N19/89 ,  H04N7/025

CPC分类号： H04N19/89 ,  H04N19/61 ,  H04N19/107

摘要： A method and apparatus are provided for communicating VBI user information in digital television data streams via a generic syntax. The syntax allows the digital transport of virtually any type of user data that may be carried in the VBI portion of an analog television signal. A pixel generator is used to insert VBI lines into a digital video signal using information provided in the user portion of the digital data stream. The syntax provides the pixel generator with the start time of the first symbol, the number of pixels per symbol, the high and low levels to insert, the fraction of the symbol time that is transition time, the number of symbols to insert and the frame line number on which to insert the data.

摘要翻译： 提供了一种通过通用语法在数字电视数据流中传送VBI用户信息的方法和装置。 该语法允许数字传输几乎可以在模拟电视信号的VBI部分中承载的任何类型的用户数据。 使用像素发生器使用在数字数据流的用户部分中提供的信息将VBI线插入到数字视频信号中。 该语法为像素生成器提供第一个符号的开始时间，每个符号的像素数，插入的高电平和低电平，转换时间的符号时间的分数，插入的符号数和帧 要插入数据的行号。

公开(公告)号：US5699124A

公开(公告)日：1997-12-16

申请号：US495369

申请日：1995-06-28

申请人： Ray Nuber ,  Paul Moroney ,  Chris Hoogenboom

发明人： Ray Nuber ,  Paul Moroney ,  Chris Hoogenboom

IPC分类号： H04N7/26 ,  H04N5/44 ,  H04N7/08 ,  H04N7/081 ,  H04N7/088 ,  H04N7/50 ,  H04N21/236 ,  H04N21/434 ,  H04N7/025 ,  H04N7/087

CPC分类号： H04N19/00 ,  H04N19/61 ,  H04N21/435 ,  H04N21/4621 ,  H04N5/4401 ,  H04N7/088 ,  H04N7/0885 ,  H04N19/70 ,  H04N21/4884

摘要： A method and apparatus are provided for communicating VBI user information for digital television. A syntax is provided which allows the transport of closed captions, non-realtime video, sampled video and AMOL. Non-realtime video can be used to transport various types of data, such as a vertical interval test signal (VITS) through the system at full resolution. The provision in the syntax of a count for each type of VBI user information enables the adjustment of a digital television data stream to accommodate variable amounts and types of such information without space being reserved in advance. The provision of a priority number in the syntax enables decoders to discard VBI user information priorities which are not supported by the particular decoder.

摘要翻译： 提供了一种用于传送数字电视的VBI用户信息的方法和装置。 提供了一种语法，允许传输隐藏式字幕，非实时视频，采样视频和AMOL。 非实时视频可用于通过系统以全分辨率传输各种类型的数据，如垂直间隔测试信号（VITS）。 用于每种类型的VBI用户信息的计数语法的提供使得能够调整数字电视数据流以适应可变数量和类型的这种信息，而没有预先保留的空间。 在语法中提供优先权号码使解码器能够丢弃特定解码器不支持的VBI用户信息优先级。