Electronic timer

Details Electronic timer Electronic timer

1979-12-18

1983-04-05

Thomas, James D.

Boots, shoes, and leggings

G06F 302

Patent

active

043793398

ABSTRACT:
The operation of an object to be controlled, operation hour data, operation day-of-week data etc. are keyed in from a keyboard randomly and are displayed by a display unit, while at the same time these are stored in an input buffer. Upon depression of a transfer key, the correctness of the key-in items stored in the input buffer is checked by a microprocessor controlled by a program stored in a read only memory. When the item is incorrect, the display of the incorrect item is flashed in the display unit to request an operator to make a key-in again. When all the items are correctly keyed in, those are transferred to the memory portion to execute a given operation.

REFERENCES:
patent: 3576433 (1971-04-01), Lee et al.
patent: 3612844 (1971-10-01), Zaffignani et al.
patent: 3943493 (1976-03-01), Shelton
patent: 4009339 (1977-02-01), Anderson
patent: 4117542 (1978-09-01), Klausner et al.
TMS1121 Universal Timer Data Manual, Texas Instruments Asia Limited, Sep. 1977.

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