公开(公告)号：DE69512818D1

公开(公告)日：1999-11-25

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：GB2323458A

公开(公告)日：1998-09-23

申请号：GB9800629

申请日：1998-01-14

Applicant: IBM

Inventor： YU PHILIP SHI-LUNG

IPC: G06F15/16 ,  G06F9/50 ,  G06F12/00 ,  G06F13/00 ,  G06F15/177 ,  G06F9/46

Abstract: In a geographically distributed or clustered system, an arbiter 110 assigns clients 100 to servers 150 and dynamically assigns a valid time interval to each mapping request based on network load and/or capacity parameters such as the client request rate and/or the server capacity. Alternative means for dynamically setting the valid interval in conjunction with a scheduling process, which can be either deterministic or probabilistic, are also devised.

公开(公告)号：AU674621B2

公开(公告)日：1997-01-02

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：DE3567781D1

公开(公告)日：1989-02-23

申请号：DE3567781

申请日：1985-05-17

Applicant: IBM

Inventor： LEBIZAY GERALD ,  LIEN YEONG-CHANG ,  YU PHILIP SHI-LUNG

IPC: H04Q3/54 ,  G06F15/173 ,  H04L12/00 ,  H04Q3/64 ,  H04Q11/04 ,  H04L11/00 ,  G06F15/16

公开(公告)号：DE69938077T2

公开(公告)日：2009-01-22

申请号：DE69938077

申请日：1999-09-23

Applicant: IBM

Inventor： HUANG YUN WU ,  YU PHILIP SHI-LUNG

IPC: G06F11/14 ,  G06F12/00 ,  G06F13/00 ,  G06F15/16

Abstract: A sync proxy or sync server logic, process and apparatus employing sync logic and/or transformation codes distributed in the network to increase the scalability and improve the manageability of synchronization between a client such as: an Internet appliance; a handheld or palmtop device; a smart phone or intelligent pager; and their remote replica sources. An example of an adaptive sync server for synchronizing data between a client and a remote host replica, which stores a replica of data on the client includes sync acceptor logic for identifying a replica host and a sync logic which is application specific to a data type associated with the client and the remote host; wherein the sync logic can be located anywhere on a network remote to the sync server and the remote host, in response to a sync request; and sync handler logic, coupled to the sync acceptor logic, for retrieving remote sync logic from the network, connecting to the remote host, and synchronizing the data between the client and the remote host using the retrieved sync logic. The sync request could explicitly (or by default) identify the replica host and the sync logic or could include an address of a directory service storing information for identifying the replica host and the sync logic. The sync request could also or alternatively include information for identifying a (local or remote) device specific transformation code for converting data between the client and the remote host during synchronization; and means for retrieving the transformation code based on the information and converting the data between the client and the remote host based on the device specific transformation code.

公开(公告)号：DE69938077D1

公开(公告)日：2008-03-20

申请号：DE69938077

申请日：1999-09-23

Applicant: IBM

Inventor： HUANG YUN WU ,  YU PHILIP SHI-LUNG

IPC: G06F11/14 ,  G06F12/00 ,  G06F13/00 ,  G06F15/16

Abstract: A sync proxy or sync server logic, process and apparatus employing sync logic and/or transformation codes distributed in the network to increase the scalability and improve the manageability of synchronization between a client such as: an Internet appliance; a handheld or palmtop device; a smart phone or intelligent pager; and their remote replica sources. An example of an adaptive sync server for synchronizing data between a client and a remote host replica, which stores a replica of data on the client includes sync acceptor logic for identifying a replica host and a sync logic which is application specific to a data type associated with the client and the remote host; wherein the sync logic can be located anywhere on a network remote to the sync server and the remote host, in response to a sync request; and sync handler logic, coupled to the sync acceptor logic, for retrieving remote sync logic from the network, connecting to the remote host, and synchronizing the data between the client and the remote host using the retrieved sync logic. The sync request could explicitly (or by default) identify the replica host and the sync logic or could include an address of a directory service storing information for identifying the replica host and the sync logic. The sync request could also or alternatively include information for identifying a (local or remote) device specific transformation code for converting data between the client and the remote host during synchronization; and means for retrieving the transformation code based on the information and converting the data between the client and the remote host based on the device specific transformation code.

公开(公告)号：AT385330T

公开(公告)日：2008-02-15

申请号：AT99307546

申请日：1999-09-23

Applicant: IBM

Inventor： HUANG YUN WU ,  YU PHILIP SHI-LUNG

IPC: G06F11/14 ,  G06F12/00 ,  G06F13/00 ,  G06F15/16

Abstract: A sync proxy or sync server logic, process and apparatus employing sync logic and/or transformation codes distributed in the network to increase the scalability and improve the manageability of synchronization between a client such as: an Internet appliance; a handheld or palmtop device; a smart phone or intelligent pager; and their remote replica sources. An example of an adaptive sync server for synchronizing data between a client and a remote host replica, which stores a replica of data on the client includes sync acceptor logic for identifying a replica host and a sync logic which is application specific to a data type associated with the client and the remote host; wherein the sync logic can be located anywhere on a network remote to the sync server and the remote host, in response to a sync request; and sync handler logic, coupled to the sync acceptor logic, for retrieving remote sync logic from the network, connecting to the remote host, and synchronizing the data between the client and the remote host using the retrieved sync logic. The sync request could explicitly (or by default) identify the replica host and the sync logic or could include an address of a directory service storing information for identifying the replica host and the sync logic. The sync request could also or alternatively include information for identifying a (local or remote) device specific transformation code for converting data between the client and the remote host during synchronization; and means for retrieving the transformation code based on the information and converting the data between the client and the remote host based on the device specific transformation code.

公开(公告)号：PL195958B1

公开(公告)日：2007-11-30

申请号：PL34715999

申请日：1999-10-08

Applicant: IBM

Inventor： JORDAN KEVIN MICHAEL ,  WU KUN-LUNG ,  YU PHILIP SHI-LUNG

IPC: G06F9/46 ,  G06F12/00 ,  G06F9/50 ,  G06F13/00

Abstract: In a system including a collection of cooperating cache servers, such as proxy cache servers, a request can be forwarded to a cooperating cache server if the requested object cannot be found locally. An overload condition is detected if for example, due to reference skew, some objects are in high demand by all the clients and the cache servers that contain those hot objects become overloaded due to forwarded requests. In response, the load is balanced by shifting some or all of the forwarded requests from an overloaded cache server to a less loaded one. Both centralized and distributed load balancing environments are described.

公开(公告)号：CA2302254C

公开(公告)日：2006-10-24

申请号：CA2302254

申请日：1998-09-28

Applicant: IBM

Inventor： YU PHILIP SHI-LUNG ,  MALKIN PETER KENNETH

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

Abstract: A method and system are disclosed for prefetching data for clients associated with a proxy server hierarchy and an enhanced content server data transfer to the clients. The method for prefetching data identifies data access patterns and prefetches select information based on a dynamic interpretation of the data access patterns. The content server or proxy server identifies data access reference patterns of clients associated with the content server or the proxy server hierarchy. The data access patterns are preferably stored in a statistics table. The content server generates prefetch hint information based on inputs from the statistics table. The prefetch hint information annotates requested information or objects requested by the clients. The prefetch hint information optimally is updated as the requested information passes through the proxy server hierarchy. The prefetch hint information annotates the requested information requested by the clients. The ultimate decision to prefetch select information for the clients is made based on the prefetch hint information and prefetch hint values. The prefetch hint value is calculated based on local node-specific factors, such as storage constraints and access time.

公开(公告)号：DE69827435T2

公开(公告)日：2005-10-20

申请号：DE69827435

申请日：1998-05-21

Applicant: IBM

Inventor： CROSSKEY JAMES P ,  MEI MARK GEE-GWO ,  RAGAVAN HARISH ,  WU KUN-LUNG ,  YU PHILIP SHI-LUNG

IPC: B65G61/00 ,  G06F13/00 ,  G06Q20/10 ,  G06Q30/02 ,  G06Q30/04 ,  H04L12/14 ,  H04L29/06 ,  H04L29/08 ,  H04M15/00 ,  G06F17/60

Abstract: A system and method for billing one or more participating parties for client access to the internet is disclosed including the steps of identifying at least one of the one or more participating parties as being responsible for the billing, allocating a share of the billing to each responsible participating party based on a predetermined function and computing a billing amount for each of the responsible participating parties based on a function of the share and a client bandwidth usage.