公开(公告)号：AU8180394A

公开(公告)日：1995-10-12

申请号：AU8180394

申请日：1994-12-30

Applicant: IBM

Inventor： CHEN MING-SYAN ,  KANDLUR DILIP DINKAR ,  YU PHILIP SHI-LUNG

IPC: H04N5/76 ,  H04N3/30 ,  H04N5/93 ,  H04N7/173 ,  H04N7/26 ,  H04N21/2312 ,  H04N21/2387 ,  H04N21/472 ,  G06F17/30

Abstract: A system and method for performing variable speed scanning or browsing, wherein a user controls the playout speed of a movie, which does not require additional disk or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in the users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segment selection. Thus, two sets of solutions are provided to support vriable speed scanning in a disk-array-based video server: One using (a), (b1) and (c), and the other using (a), (b2) and (c).

公开(公告)号：CA2342316C

公开(公告)日：2003-08-12

申请号：CA2342316

申请日：1995-02-17

Applicant: IBM

Inventor： CHEN MING-SYAN ,  KANDLUR DILIP D ,  YU PHILIP S

IPC: H04N5/00 ,  H04N7/173

Abstract: A system and method for performing variable speed scanning or by browsing, wherein a user controls the playout speed of a movie, which does not require additional disk or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in t he users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segme nt selection. Thus, two sets of solutions are provided to support variable speed scanning in a disk- array-based video server: One using (a), (b1) and (c), and the other using (a), (b2) and (c).

公开(公告)号：DE69512818T2

公开(公告)日：2000-04-20

申请号：DE69512818

申请日：1995-03-20

Applicant: IBM

Inventor： CHEN MING-SYAN ,  KANDLUR DILIP DINKAR ,  YU PHILIP SHI-LUNG

IPC: H04N5/76 ,  H04N3/30 ,  H04N5/93 ,  H04N7/173 ,  H04N7/26 ,  H04N21/2312 ,  H04N21/2387 ,  H04N21/472

Abstract: A system and method for performing variable speed scanning or browsing, wherein a user controls the playout speed of a movie, which does not require additional disk or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in the users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segment selection. Thus, two sets of solutions are provided to support vriable speed scanning in a disk-array-based video server: One using (a), (b1) and (c), and the other using (a), (b2) and (c).

公开(公告)号：DE69530556T2

公开(公告)日：2004-04-08

申请号：DE69530556

申请日：1995-09-15

Applicant: IBM

Inventor： CHEN MING-SYAN ,  WU KUN-LUNG ,  YU PHILIP SHI-LUNG

IPC: G06F15/16 ,  G06F12/00 ,  G06F12/08 ,  G06F13/00 ,  G06F15/177 ,  G06F17/30 ,  H04L29/06

Abstract: A communications system and method include an efficient cache invalidation technique which allows a computer to relocate and to disconnect without informing the server. The server partitions the entire database into a number of groups. The server also dynamically identifies recently updated objects in a group and excludes them from the group when checking the validity of the group. If these objects have already been included in the most recent invalidation broadcast, the remote computer can invalidate them in its cache before checking the group validity with the server. With the recently updated objects excluded from a group, the server can conclude that the cold objects in the group can be retained in the cache, and validate the rest of the group.

公开(公告)号：DE69530556D1

公开(公告)日：2003-06-05

申请号：DE69530556

申请日：1995-09-15

Applicant: IBM

Inventor： CHEN MING-SYAN ,  WU KUN-LUNG ,  YU PHILIP SHI-LUNG

IPC: G06F15/16 ,  G06F12/00 ,  G06F12/08 ,  G06F13/00 ,  G06F15/177 ,  G06F17/30 ,  H04L29/06

Abstract: A communications system and method include an efficient cache invalidation technique which allows a computer to relocate and to disconnect without informing the server. The server partitions the entire database into a number of groups. The server also dynamically identifies recently updated objects in a group and excludes them from the group when checking the validity of the group. If these objects have already been included in the most recent invalidation broadcast, the remote computer can invalidate them in its cache before checking the group validity with the server. With the recently updated objects excluded from a group, the server can conclude that the cold objects in the group can be retained in the cache, and validate the rest of the group.

公开(公告)号：CA2342317C

公开(公告)日：2003-10-14

申请号：CA2342317

申请日：1995-02-17

Applicant: IBM

Inventor： CHEN MING-SYAN ,  KANDLUR DILIP D ,  YU PHILIP S

IPC: H04N5/00 ,  H04N7/173

Abstract: A system and method for performing variable speed scanning or browsing, wherein a user controls the playout speed of a movie, which does not require additional disk or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in t he users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segme nt selection. Thus, two sets of solutions are provided to support variable speed scanning in a disk- array-based video server: One using (a), (b1) and (c), and the other using (a), (b2) and (c).

公开(公告)号：AT185941T

公开(公告)日：1999-11-15

申请号：AT95104098

申请日：1995-03-20

Applicant: IBM

Inventor： CHEN MING-SYAN ,  KANDLUR DILIP DINKAR ,  YU PHILIP SHI-LUNG

IPC: H04N5/76 ,  H04N3/30 ,  H04N5/93 ,  H04N7/173 ,  H04N7/26 ,  H04N21/2312 ,  H04N21/2387 ,  H04N21/472

Abstract: A system and method for performing variable speed scanning or browsing, wherein a user controls the playout speed of a movie, which does not require additional disk or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in the users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segment selection. Thus, two sets of solutions are provided to support vriable speed scanning in a disk-array-based video server: One using (a), (b1) and (c), and the other using (a), (b2) and (c).

公开(公告)号：SG28234A1

公开(公告)日：1996-04-01

申请号：SG1995000158

申请日：1995-03-24

Applicant: IBM

Inventor： KANDLUR DILIP DINKAR ,  CHEN MING-SYAN ,  YU PHILIP SHI-LUNG

IPC: G06F15/16

公开(公告)号：CA2142801C

公开(公告)日：2001-10-16

申请号：CA2142801

申请日：1995-02-17

Applicant: IBM

Inventor： CHEN MING-SYAN ,  KANDLUR DILIP D ,  YU PHILIP S

IPC: H04N5/76 ,  H04N3/30 ,  H04N5/93 ,  H04N7/173 ,  H04N7/26 ,  H04N21/2312 ,  H04N21/2387 ,  H04N21/472

Abstract: A system and method for performing variable speed scanning or browsing, wherein a user controls the playout speed of a movie, which does not require additional dis k or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in the users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segment selection. Thus, two sets of solutions are provided to support variable speed scanning in a disk-array-based video server: One using (a), (b1) and (c), and the oth er using (a), (b2) and (c).

公开(公告)号：ES2137390T3

公开(公告)日：1999-12-16

申请号：ES95104098

申请日：1995-03-20

Applicant: IBM

Inventor： CHEN MING-SYAN ,  KANDLUR DILIP DINKAR ,  YU PHILIP SHI-LUNG

IPC: H04N5/76 ,  H04N3/30 ,  H04N5/93 ,  H04N7/173 ,  H04N7/26 ,  H04N21/2312 ,  H04N21/2387 ,  H04N21/472

Abstract: A system and method for performing variable speed scanning or browsing, wherein a user controls the playout speed of a movie, which does not require additional disk or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in the users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segment selection. Thus, two sets of solutions are provided to support vriable speed scanning in a disk-array-based video server: One using (a), (b1) and (c), and the other using (a), (b2) and (c).