Programmable electronic real-time load controller, and apparatus

Details Programmable electronic real-time load controller, and apparatus Programmable electronic real-time load controller, and apparatus

1982-12-23

1986-02-25

Gruber, Felix D.

Boots, shoes, and leggings

307 40, 364138, 368 28, G01R 2100, G06F 1520, G06F 1556

Patent

active

045731276

ABSTRACT:
Certain calendar events, such as the standard/daylight time transition or a holiday such as Labor Day, always occur on the same alphabetic day always having the same relationship to the beginning or end of the same month in any year; however, their numeric day varies from year to year. In order to update the numeric day of such a calendar event that is used by a microprocessor of a programmable electronic real-time load controller, the microprocessor selects a reference day value representing the numeric day of the calendar event in a given year and selects a reference year value representing the numeric year of that year. At the beginning of each real-time year, the microprocessor determines a real-time year value representing the numeric year of the real-time year, determines a current numeric day value for the calendar event from the reference day value, the reference year value, and the real-time year value, and stores the current numeric day value for use during the current real-time year.

REFERENCES:
patent: 4274146 (1981-06-01), Yanagawa
patent: 4283772 (1981-08-01), Johnston
patent: 4291375 (1981-09-01), Wolf
patent: 4293915 (1981-10-01), Carpenter et al.
patent: 4347576 (1982-08-01), Kensinger et al.
patent: 4355361 (1982-10-01), Riggs et al.
patent: 4357665 (1982-11-01), Korff
patent: 4415271 (1983-11-01), Mori

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