公开(公告)号：EP0704134A1

公开(公告)日：1996-04-03

申请号：EP95911777.0

申请日：1995-02-16

Applicant: MOTOROLA, INC.

Inventor： ZHU, Qin-Fan ,  YONG, Mei

IPC: H04N7 ,  H04Q11 ,  H04L12

CPC classification number: H04N21/23406 ,  H04L2012/5616 ,  H04L2012/5649 ,  H04N19/40 ,  H04N21/236 ,  H04N21/434 ,  H04N21/44004 ,  H04Q11/0478

Abstract: The method (1100) and device (200, 900, 1400) of the present invention provides a mechanism to apply smoothing delay to video packets transmitted through a packet-switched network. Since the method and device using this invention perform a smoothing delay at video frame level, instead of packet level, smoothing delay can be minimized and at the same time the video decoder overflow can still be prevented. The present invention reduces system complexity by eliminating the need to recover the time stamp for each packet. Furthermore, the present invention does not require the prior knowledge of the worst network delay Δ. Thus, the present invention provides for a minimized jitter smoothing delay with concurrent minimized implementation complexity.

公开(公告)号：WO1996011457A1

公开(公告)日：1996-04-18

申请号：PCT/US1995010696

申请日：1995-08-22

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  ZHU, Qin-Fan

IPC: G08C25/02

CPC classification number: H04N21/658 ,  G08C25/02 ,  H04N7/17309 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82 ,  H04N19/895 ,  H04N21/6377

Abstract: The present invention provides a signal loss recovery device (400) and method for digitally encoded bitstreams produced by predictive encoders, for realtime and/or interactive communications. The signal loss recovery device (400) recovers the lost or damaged information by sending a retransmission request for the lost information from transmission receiver (302). Compared to the previously known retransmission technique, this device does not introduce extra buffer delay. The elimination of this buffer delay is realized by continuously processing the received data while waiting for the arrival of the retransmission. The information is reinserted into the error corrupted signal to restore the output signal to its original form without signal loss.

Abstract translation: 本发明提供一种用于实时和/或交互式通信的由预测编码器产生的数字编码比特流的信号丢失恢复装置（400）和方法。 信号丢失恢复装置（400）通过从发送接收机（302）发送丢失信息的重发请求来恢复丢失或损坏的信息。 与先前已知的重传技术相比，该设备不会引入额外的缓冲延迟。 通过在等待重传的到来的同时持续处理接收到的数据来实现该缓冲器延迟的消除。 该信息被重新插入到错误损坏的信号中，以将输出信号恢复到原始形式而没有信号丢失。

公开(公告)号：WO1995028802A1

公开(公告)日：1995-10-26

申请号：PCT/US1995001998

申请日：1995-02-16

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  ZHU, Qin-Fan ,  YONG, Mei

IPC: H04N07/00

CPC classification number: H04N21/23406 ,  H04L2012/5616 ,  H04L2012/5649 ,  H04N19/40 ,  H04N21/236 ,  H04N21/434 ,  H04N21/44004 ,  H04Q11/0478

Abstract: The method (1100) and device (200, 900, 1400) of the present invention provides a mechanism to apply smoothing delay to video packets transmitted through a packet-switched network. Since the method and device using this invention perform a smoothing delay at video frame level, instead of packet level, smoothing delay can be minimized and at the same time the video decoder overflow can still be prevented. The present invention reduces system complexity by eliminating the need to recover the time stamp for each packet. Furthermore, the present invention does not require the prior knowledge of the worst network delay DELTA . Thus, the present invention provides for a minimized jitter smoothing delay with concurrent minimized implementation complexity.

Abstract translation: 本发明的方法（1100）和装置（200,900,1400）提供了一种对通过分组交换网络发送的视频分组进行平滑延迟的机制。 由于使用本发明的方法和装置在视频帧级执行平滑延迟，而不是分组级，可以使平滑延迟最小化，并且同时可以防止视频解码器溢出。 本发明通过消除恢复每个分组的时间戳的需要来降低系统复杂度。 此外，本发明不需要最差网络延迟DELTA的现有知识。 因此，本发明提供了最小的抖动平滑延迟，同时最小化实施复杂度。

公开(公告)号：EP0733251B1

公开(公告)日：2005-04-27

申请号：EP95931561.5

申请日：1995-08-22

Applicant: MOTOROLA, INC.

Inventor： ZHU, Qin-Fan

IPC: G08C25/02 ,  H04N7/12 ,  H04N7/32

CPC classification number: H04N21/658 ,  G08C25/02 ,  H04N7/17309 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82 ,  H04N19/895 ,  H04N21/6377

公开(公告)号：EP0733251A1

公开(公告)日：1996-09-25

申请号：EP95931561.0

申请日：1995-08-22

Applicant: MOTOROLA, INC.

Inventor： ZHU, Qin-Fan

IPC: G08C25 ,  H04N7

CPC classification number: H04N21/658 ,  G08C25/02 ,  H04N7/17309 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82 ,  H04N19/895 ,  H04N21/6377

Abstract: The present invention provides a signal loss recovery device (400) and method for digitally encoded bitstreams produced by predictive encoders, for realtime and/or interactive communications. The signal loss recovery device (400) recovers the lost or damaged information by sending a retransmission request for the lost information from transmission receiver (302). Compared to the previously known retransmission technique, this device does not introduce extra buffer delay. The elimination of this buffer delay is realized by continuously processing the received data while waiting for the arrival of the retransmission. The information is reinserted into the error corrupted signal to restore the output signal to its original form without signal loss.