Electronic instrument
US4156281A · kind A · utility
7Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1977 |
| Grant date | May 22, 1979 |
| Priority date | — |
| Expiry date | Oct 19, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G9/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an electronic instrument having a keyboard including numeric keys for entering numerical data into the instrument and instruction keys for entering instructions into the instrument, there is provided a memory responsive to the operation of the numeric keys to store numerical data therein, an arithmetic operating circuit responsive to the operation of the instruction keys to operate on at least the numerical data, a time counter for counting time, and a setter for setting the initial value in the time counter in accordance with the numerical data entered by operation of the numeric keys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.