发明名称 |
LOW POWER ELECTRONIC CALCULATOR SYSTEM |
摘要 |
<p>An electronic calculator system of the type having a keyboard input and a visual display readout is implemented in MOS/LSI semiconductor chips having a data memory, an arithmetic unit, a read-only-memory for storing instruction words, and control circuitry for operating the system in response to keyboard inputs, all in monolithic semiconductor units. The keyboard and display are scanned by timing signals generated in the semiconductor unit by a register associated with the data memory.</p> |
申请公布号 |
CA1023866(A) |
申请公布日期 |
1978.01.03 |
申请号 |
CA19730187337 |
申请日期 |
1973.12.04 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
HARTSELL, GLENN A.;FISHER, ROGER J.;VANDIERENDONCK, JERRY L. |
分类号 |
G01R31/317;G06F15/02;G11C17/12 |
主分类号 |
G01R31/317 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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