Patent
Methods for encoding decoding and processing six character date designations for the year 2000 and beyond
William M. Wolf
- 07 Oct 1997
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TL;DR: In this article, a method for encoding and decoding calendar dates in multiple centuries to allow date data to be stored in a six-character format in a digital data processor is presented.
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Abstract: A method of encoding and decoding calendar dates in multiple centuries to allow date data to be stored in a six-character format in a digital data processor. In an embodiment designed to allow existing programs to process date data correctly in the year 2000 and beyond, dates occurring before the year 2000 are characterized by two digit representations of each of the day, month, and year, while dates in the year 2000 and years thereafter are characterized by a year representation of "99" and a four-character month/day representation which is greater than 1231. The method comprises an Input Phase, in which date data are encoded from a conventional form into a six character format suitable for storage in a digital data processor, a Processing Phase, in which arithmetic and logical manipulation of date data may be performed, and an Output Phase, in which encoded date data are decoded into conventional numerical date designations. Also disclosed is a method of modifying existing computer programs to allow processing of dates in multiple centuries according to the above method.
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Citations
Patent
Object code logic analysis and automated modification system and method
Robert H. Nagel
- 09 Dec 1998
TL;DR: In this article, a method and system for modifying computer program logic with respect to a predetermined aspect is presented, in a mainframe environment, where the compiled computer program constitutes one or more load modules, executing under an operating system.
136
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Compiler-assisted or interpreter-assisted windowing solution to the year 2000 problem for computer programs
William Augustus Carter,Alan Roeder Elderon,Timothy David Magee,Mark David Nicholas,Henry Y. Saade,Grant Sutherland,William Nicholas John Tindall,Jeffrey Ramesh Urs,Timothy Edward Weinmann,Michael Thomas Wheatley +9 more
- 14 Nov 1997
TL;DR: In this article, a method for solving the year 2000 problem involves limited modifications in the data definition portions of the source code and compiler support for processing the modified source code, which may be used with a suitably equipped debugger or other run-time analysis tool.
27
Patent
Compiler-assisted solution to the year 2000 problem for computer programs
William Augustus Carter,Alan Roeder Elderon,Timothy David Magee,Mark David Nicholas,Henry Y. Saade,Grant Sutherland,William Nicholas John Tindall,Jeffrey Ramesh Urs,Timothy Edward Weinmann,Michael Thomas Wheatley +9 more
- 23 Jul 1997
TL;DR: In this paper, a method for solving the year 2000 problem involves limited modifications in the data definition portions of the source code and compiler support for processing the modified source code, which may be used with a suitably equipped debugger or other run-time analysis tool.
8
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Software date and time services
Robert Wayne Franklin,James Allen Looper,John M. Rogers,Arnold E. Tramble +3 more
- 18 May 1998
TL;DR: In this paper, a program product performs date and time services for a calling program, and a windowing function is performed to determine a century value for a date that lacks a century designator.
4
Patent
Date formatting system
Wesley Stout
- 22 Jun 1998
TL;DR: A date formatting system for a computer program to perform date operations where the dates span more than one century is presented in this paper, where a 6-integer file system in CYYDDD format is used, with C being a variable indicating the century, YY indicating years, and DDD indicating days of the year.
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