Brief numerical keypad and its output method

Details Brief numerical keypad and its output method Brief numerical keypad and its output method

2007-05-15

2007-05-15

Edwards, Jr., Timothy (Department: 2612)

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

C200S0050EA, C400S486000

Reexamination Certificate

active

10645096

ABSTRACT:
A brief numerical keypad is constructed to include four number keys aligned in X-axis and Y-axis directions and abutted against one another, each expressing one of the numbers from 1˜9, a plurality of double-bridging operation portions respectively bridging the abutted area of each two adjacent number keys, each double-bridging operation portion expressing a number equal to the sum of the numerals of the respective two abutted number keys, and a plurality of triple-bridging operation portions respectively bridging the abutted area of each three adjacent number keys, each triple-bridging operation portion expressing a number equal to the sum of the numerals of the respective three abutted number keys.

REFERENCES:
patent: 2261115 (1941-11-01), Hofgaard
patent: 4400593 (1983-08-01), Kunz
patent: 5861588 (1999-01-01), Gillot

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