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1. (US6195701) Method and apparatus for synchronization and scheduling of multiple data streams and real time tasks

Office : United States of America
Application Number: 08682523 Application Date: 25.07.1996
Publication Number: 6195701 Publication Date: 27.02.2001
Grant Number: 6195701 Grant Date: 27.02.2001
Publication Kind : B1
Prior PCT appl.: Application Number:EP94000833 ; Publication Number: Click to see the data
IPC:
G06F 15/16
G06F 9/46
G06F 9/48
G06F 17/00
G06F 17/30
G06F 19/00
G06Q 10/00
H04J 3/06
H04N 5/93
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
15
Digital computers in general; Data processing equipment in general
16
Combinations of two or more digital computers each having at least an arithmetic unit, a programme unit and a register, e.g. for a simultaneous processing of several programmes
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
9
Arrangements for programme control, e.g. control unit
06
using stored programme, i.e. using internal store of processing equipment to receive and retain programme
46
Multiprogramming arrangements
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
9
Arrangements for programme control, e.g. control unit
06
using stored programme, i.e. using internal store of processing equipment to receive and retain programme
46
Multiprogramming arrangements
48
Programme initiating; Programme switching, e.g. by interrupt
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
17
Digital computing or data processing equipment or methods, specially adapted for specific functions
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
17
Digital computing or data processing equipment or methods, specially adapted for specific functions
30
Information retrieval; Database structures therefor
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
19
Digital computing or data processing equipment or methods, specially adapted for specific applications
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
Q
DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
10
Administration; Management
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
3
Time-division multiplex systems
02
Details
06
Synchronising arrangements
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
76
Television signal recording
91
Television signal processing therefor
93
Regeneration of the television signal or of selected parts thereof
Applicants: International Business Machines Corporation
Inventors: Kaiserswerth, Matthias
Ruetsche, Erich
Agents: Flynn, John D.
Priority Data: EP9400833 16.03.1994 WO
Title: (EN) Method and apparatus for synchronization and scheduling of multiple data streams and real time tasks
Abstract: front page image
(EN)

The present invention concerns a method and an apparatus for the synchronization and the scheduling of multiple data streams and real time tasks. In accordance with the present invention, pointers pointing to the information streams to be synchronized and processed are kept in the table (51) of a selector (11). The time marks (S1Start etc.) of said information streams are stored in a table (61) of a timer. The system time is checked against said time marks and if a time mark has been reached, the table (51) of said selector (11) is updated. If the status of an information stream is such that its trigger condition is fulfilled, the pointer to said information stream is made available at the output of the selector (11). This pointer is then used to retrieve the respective information stream and to forward it to a playout device.


Also published as:
EP0750769JPH09505191 DE000069410489WO/1995/025313