公开(公告)号：US07031306B2

公开(公告)日：2006-04-18

申请号：US09814453

申请日：2001-03-22

申请人： John M. Amaral ,  David R. Davis ,  Edmund P. Chin ,  John M. Vincent ,  Michael P. Healey ,  Jeffrey C. Landrum

发明人： John M. Amaral ,  David R. Davis ,  Edmund P. Chin ,  John M. Vincent ,  Michael P. Healey ,  Jeffrey C. Landrum

IPC分类号： H04J3/06

CPC分类号： H04N21/23406 ,  H04J3/0632 ,  H04N21/2381 ,  H04N21/242 ,  H04N21/4302 ,  H04N21/4305 ,  H04N21/44004 ,  H04N21/64307 ,  H04N21/8547

摘要： Transmitting data packets received from a non-constant delay medium includes storing the data packets in a buffer, determining a play-out schedule for the data packets based on timing information in the data packets, and transmitting the data packets from the buffer in accordance with the play-out schedule. Two of the data packets may contain time-stamps and the play-out schedule may be determined based on a difference between the time-stamps.

公开(公告)号：US06088360A

公开(公告)日：2000-07-11

申请号：US656558

申请日：1996-05-31

申请人： John M. Amaral ,  David R. Davis ,  John K. Trimper ,  Charles F. Barry

发明人： John M. Amaral ,  David R. Davis ,  John K. Trimper ,  Charles F. Barry

IPC分类号： G06T9/00 ,  H04N7/32 ,  H04N21/2365 ,  H04N21/434 ,  H04J3/16 ,  H04N3/22 ,  H04N7/12

CPC分类号： H04N21/2365 ,  H04N19/152 ,  H04N21/4347 ,  H04N19/50

摘要： A video multiplexer is disclosed which incorporates a dynamic rate control feature. MPEG encoded video signals for each channel are stored in a first-in first-out (FIFO) buffer. A packetizer for each channel detects the level in the FIFO buffer and issues a request signal to the video multiplexer that the channel desires to transmit the video signals on the network. The bandwidth allocation for a channel is either preselected by the video provider or automatically selected, and tokens are issued by a counter associated with each channel to give greater network access to those channels which require a higher bandwidth. A token multiplier detects the bandwidth needs of the various channels by detecting the rate that the FIFO buffer is being filled and automatically multiplies the number of consecutive packets which the packetizer may transmit over the multiplexer during a single grant.

摘要翻译： 公开了一种包含动态速率控制特征的视频多路复用器。 每个通道的MPEG编码视频信号被存储在先进先出（FIFO）缓冲器中。 每个通道的分组器检测FIFO缓冲器中的电平，并向视频多路复用器发出信号期望在网络上传输视频信号的请求信号。 频道的带宽分配由视频提供商预先选择或自动选择，令牌由与每个频道相关的计数器发出，以给予需要更高带宽的那些频道更大的网络访问。 令牌乘法器通过检测FIFO缓冲器被填充的速率来检测各种信道的带宽需求，并且在单个授权期间自动乘以分组器可以通过多路复用器发送的连续分组的数量。