The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2002
Filed:
Jun. 02, 1999
Applicant:
Inventor:
Paul Anton Richardson Gardner, Burnham, GB;
Assignee:
International Computers Limited, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/730 ; G06F 1/300 ; G06F 9/312 ;
U.S. Cl.
CPC ...
G06F 1/730 ; G06F 1/300 ; G06F 9/312 ;
Abstract
A data processing method evaluates expressions, including temporally-scoped operands, to produce temporally-scoped results. Each of the temporally-scoped operands and results includes a sequence of one or more value instances, each value instance including a data item, a start time, and an end time, the start time and end time defining a time span in which the data item is valid. An expression involving a binary operator is evaluated by scanning each of the operands of the binary operator and generating a value instance in the result, in respect of each time span in which each operand has a constant value.