公开(公告)号：JP2000349825A

公开(公告)日：2000-12-15

申请号：JP2000102549

申请日：2000-04-04

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LOU HUI-LING ,  SCHULLER GERALD DIETRICH THOMA ,  WEERACKODY VIJITHA

IPC: G06F13/38 ,  G06F13/00 ,  H04L12/801 ,  H04L12/885 ,  H04L12/911 ,  H04N7/24 ,  H04N19/00 ,  H04N21/2343 ,  H04N21/438 ,  H04L12/56

Abstract: PROBLEM TO BE SOLVED: To obtain source coding and a receiving data buffering scheme with receivable startup delay by generating of the reproduction of a program source on the basis of the decoding of a data packet buffered by a 1st receiving buffer. SOLUTION: Decode algorithm executed by a decoder 21 includes a normal decoding method for decoding a data stream generated by normal encode algorithm executed by a coder 11 and a normal decoding method for decoding a data stream generated by a normal encode algorithm executed by a decoder 22. A selection processor 24 operates to so as to generate reproduction B (n) obtained with an original source program as a result. Then, the decoder 21 uses both outputs of receiving buffers 17 and 18 and generates the reproduction of the original source program after delay n1 has passed.

公开(公告)号：CA2300757A1

公开(公告)日：2000-10-08

申请号：CA2300757

申请日：2000-03-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SCHULLER GERALD DIETRICH THOMA ,  LOU HUI-LING ,  WEERACKODY VIJITHA

IPC: G06F13/38 ,  G06F13/00 ,  H04L49/9023 ,  H04N7/24 ,  H04N19/00 ,  H04N21/2343 ,  H04N21/438 ,  H04L12/56

Abstract: A method and apparatus which reduces the start-up delay that may occur when switching programs in audio and/or video streaming applications while maintaining high quality steady-state performance thereof. A program source (e.g., an audio and/or video data stream) is encoded and transmitted as two or more separate bit streams (e.g., sequences of data packets), the transmission of one of these bit streams being delayed by a given amount of time relative to the transmission of the other bit stream(s). At the receiving end of the transmission channel, the two or more bit streams are buffered by receive buffers having different sizes (thereby resulting in different time delays when the contents thereof are decoded), wherein the time delay difference corresponds (inversely) to the relative delay times prior to transmission. Advantageously, either a multiple descriptive source coding scheme or an embedded coding scheme may be employed, in which at least one of the individual bit streams is sufficient to obtain a satisfactory decoded signal, but wherein the addition of the other bit stream(s) will improve the quality of the decoded signal. Alternatively, the data streams may comprise multiple encodings of the program source having different bit rates, wherein the lower bit rate encodings are transmitted with the correspondingly larger delays.

公开(公告)号：DE60000319D1

公开(公告)日：2002-09-19

申请号：DE60000319

申请日：2000-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LOU HUI-LING ,  SCHULLER GERALD DIETRICH THOMA ,  WEERACKODY VIJITHA

IPC: G06F13/38 ,  G06F13/00 ,  H04L49/9023 ,  H04N7/24 ,  H04N19/00 ,  H04N21/2343 ,  H04N21/438 ,  H04L29/06 ,  H04N7/26

Abstract: A method and apparatus which reduces the start-up delay that may occur when switching programs in audio and/or video streaming applications while maintaining high quality steady-state performance thereof. A program source (e.g., an audio and/or video data stream) is encoded and transmitted as two or more separate bit streams (e.g., sequences of data packets), the transmission of one of these bit streams being delayed by a given amount of time relative to the transmission of the other bit stream(s). At the receiving end of the transmission channel, the two or more bit streams are buffered by receive buffers having different sizes (thereby resulting in different time delays when the contents thereof are decoded), wherein the time delay difference corresponds (inversely) to the relative delay times prior to transmission. Advantageously, either a multiple descriptive source coding scheme or an embedded coding scheme may be employed, in which at least one of the individual bit streams is sufficient to obtain a satisfactory decoded signal, but wherein the addition of the other bit stream(s) will improve the quality of the decoded signal. Alternatively, the data streams may comprise multiple encodings of the program source having different bit rates, wherein the lower bit rate encodings are transmitted with the correspondingly larger delays.

公开(公告)号：CA2300757C

公开(公告)日：2004-01-20

申请号：CA2300757

申请日：2000-03-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LOU HUI-LING ,  SCHULLER GERALD DIETRICH THOMA ,  WEERACKODY VIJITHA

IPC: G06F13/38 ,  G06F13/00 ,  H04L49/9023 ,  H04N7/24 ,  H04N19/00 ,  H04N21/2343 ,  H04N21/438 ,  H04L12/56

Abstract: A method and apparatus which reduces the start-up delay that may occur wh en switching programs in audio and/or video streaming applications while maintaining high quality steady-state performance thereof. A program source (e.g., an audio and/or video data stream) is encoded and transmitted as two or more separate bit streams (e.g., sequences of data packets), the transmission of one of these bit streams being delayed by a given amount of time relative to the transmission of the other bit stream(s). At t he receiving end of the transmission channel, the two or more bit streams are buffered by receive buffers having different sizes (thereby resulting in different time delays when the contents thereof are decoded), wherein the time delay difference corresponds (inversely) to t he relative delay times prior to transmission. Advantageously, either a multiple descriptive source coding scheme or an embedded coding scheme may be employed, in which at leas t one of the individual bit streams is sufficient to obtain a satisfactory decoded signal, but wherein the addition of the other bit stream(s) will improve the quality of the decoded signal. Alternatively, the data streams may comprise multiple encodings of the progr am source having different bit rates, wherein the lower bit rate encodings are transmitted with the correspondingly larger delays.

公开(公告)号：DE60000319T2

公开(公告)日：2003-03-13

申请号：DE60000319

申请日：2000-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LOU HUI-LING ,  SCHULLER GERALD DIETRICH THOMA ,  WEERACKODY VIJITHA

IPC: G06F13/38 ,  G06F13/00 ,  H04L49/9023 ,  H04N7/24 ,  H04N19/00 ,  H04N21/2343 ,  H04N21/438 ,  H04L29/06 ,  H04N7/26

Abstract: A method and apparatus which reduces the start-up delay that may occur when switching programs in audio and/or video streaming applications while maintaining high quality steady-state performance thereof. A program source (e.g., an audio and/or video data stream) is encoded and transmitted as two or more separate bit streams (e.g., sequences of data packets), the transmission of one of these bit streams being delayed by a given amount of time relative to the transmission of the other bit stream(s). At the receiving end of the transmission channel, the two or more bit streams are buffered by receive buffers having different sizes (thereby resulting in different time delays when the contents thereof are decoded), wherein the time delay difference corresponds (inversely) to the relative delay times prior to transmission. Advantageously, either a multiple descriptive source coding scheme or an embedded coding scheme may be employed, in which at least one of the individual bit streams is sufficient to obtain a satisfactory decoded signal, but wherein the addition of the other bit stream(s) will improve the quality of the decoded signal. Alternatively, the data streams may comprise multiple encodings of the program source having different bit rates, wherein the lower bit rate encodings are transmitted with the correspondingly larger delays.