Converting representations of year

• US 5,758,346 A
• Filed: 01/29/1997
• Issued: 05/26/1998
• Est. Priority Date: 01/29/1997
• Status: Expired due to Term

• Current Assignee: Ent Services Development Corporation LP (DXC Technology Company)
• Original Assignee: Electronic Data Systems Corporation (Perspecta, Inc.)
• Inventors: Baird, William J.
• Primary Examiner(s): Lintz, Paul R.
• Application Number:
  US08/790,411
• Time in Patent Office: 482 Days
• Field of Search: 395/601, 395/611, 395/612, 707/101, 707/1
• US Class Current: 1/1
• CPC Class Codes: G06F 8/78 Methods to solve the "Year 2000" [Y2K] problem

Abstract

A system is provided for converting representations of year. The system includes a database which stores a representation of year in either a two-digit format or a four-digit format. A processor, coupled to the database, converts the representation into the other of the two-digit format or the four-digit format if the represented year falls within a floating window of years. If the represented year does not fall within the floating window, the processor rejects the representation.

Claims

1. A system for converting representations of year, the system comprising:

a database operable to store a representation of year in either a two-digit format or a four-digit format, the database further operable to store at least one value for each of a set of parameters defining a floating window; and

a processor coupled to the database, the processor operable to perform a set-up routine in order to configure the floating window utilizing the values for the parameters, the processor further operable to convert the representation into the other of the two-digit format or the four-digit format if the represented year falls within the floating window of years, the processor further operable to reject the representation if the represented year does not fall within the floating window of years.

2. The system of claim 1, wherein the database is further operable to store a converted representation.

3. The system of claim 2, wherein the processor is further operable to purge the converted representation from the database at a predetermined time.

4. The system of claim 1, wherein the parameters comprise a reference year parameter, a high offset parameter, and a low offset parameter.

5. The system of claim 1, wherein the parameters comprise a high offset parameter having a default value of forty and a low offset parameter having a default value of forty.

6. The system of claim 1, wherein the parameters comprise a reference year parameter having a default value of the current year.

7. The system of claim 1, wherein the processor is further operable to determine whether the representation falls within the floating window of years.

8. The system of claim 1, wherein the database comprises:

an input two-digit memory operable to store at least one representation of year in a two-digit format; and

an input four-digit memory operable to store at least one representation of year in a four-digit format.

9. The system of claim 1, wherein the database comprises:

an accepted output memory operable to store at least one representation of year converted by the processor; and

a rejected output memory operable to store at least one representation of year rejected by the processor.

10. The system of claim 3, wherein the predetermined time coincides with either a beginning or an end of a current year.

11. The system of claim 3, wherein the predetermined time coincides with either a beginning or an end of a fiscal year.

12. The system of claim 1, wherein the database is further operable to store information identifying a current date.

13. A method for converting representations of year, the method comprising the steps of:

receiving a value for each of a set of parameters for defining a floating window of years;

configuring the floating window of years in response to the received values;

receiving a representation of year in either a two-digit format or a four-digit format;

determining whether the represented year falls within the floating window of years;

converting the representation into the other of the two-digit format or the four-digit format if the represented year falls within the floating window of years; and

rejecting the representation if the represented year does not fall within the floating window of years.

14. The method of claim 13, wherein the step of converting further comprises the step of performing a mathematical calculation on the representation.

15. The method claim 13, further comprising the steps of:

storing a converted representation into an accepted output memory; and

purging the converted representation from the accepted output memory at a predetermined time.

16. The method of claim 13, wherein the parameters comprise a high offset parameter having a default value of forty and a low offset parameter having a default value of forty.

17. The method of claim 13, further comprising the step of storing a rejected representation into a rejected output memory.