JPS5525162A - Electronic desk calculator - Google Patents
Electronic desk calculatorInfo
- Publication number
- JPS5525162A JPS5525162A JP9848378A JP9848378A JPS5525162A JP S5525162 A JPS5525162 A JP S5525162A JP 9848378 A JP9848378 A JP 9848378A JP 9848378 A JP9848378 A JP 9848378A JP S5525162 A JPS5525162 A JP S5525162A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- register
- display
- addend
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To display the count value of electric pulses, and also to display its unit by changing units by a numeral registered by a key of an electronic desk calculator and also by changing the exponent part of a display register.
CONSTITUTION: This calculator is provided with keyboard 1, registration and arithmetic instruction circuit 2, control circuit 3, arithmetic register 4 and display circuit 6 connected to addend part 5 and exponent part 5-1 of the display register; the output of detection part 7 generating a binary electric signal and that of 1st FF9 are inputted when both the output signal disagree, dissidence detection circuit 8 generates a pulse to invert FF9. Further, 2nd FF10 is provided which resets by a signal from keyboard 1 and set on the arrival of an execution instruction to the circuit which registers "1" in addend part 5 of the register and when a pulse from circuit 8 arrives. FF10 is set to add "1" to the content of addend part 5. Then, while FF10 is in a reset state, the output of change-over switch 15 is applied to exponent part 5-1 of the register, thereby changing units.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9848378A JPS5525162A (en) | 1978-08-11 | 1978-08-11 | Electronic desk calculator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9848378A JPS5525162A (en) | 1978-08-11 | 1978-08-11 | Electronic desk calculator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5525162A true JPS5525162A (en) | 1980-02-22 |
JPS6217781B2 JPS6217781B2 (en) | 1987-04-20 |
Family
ID=14220889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9848378A Granted JPS5525162A (en) | 1978-08-11 | 1978-08-11 | Electronic desk calculator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5525162A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5790747A (en) * | 1980-11-28 | 1982-06-05 | Casio Comput Co Ltd | Display system of small-sized electronic computer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3611041B2 (en) * | 1994-02-14 | 2005-01-19 | 直 柴田 | Semiconductor arithmetic circuit |
-
1978
- 1978-08-11 JP JP9848378A patent/JPS5525162A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5790747A (en) * | 1980-11-28 | 1982-06-05 | Casio Comput Co Ltd | Display system of small-sized electronic computer |
Also Published As
Publication number | Publication date |
---|---|
JPS6217781B2 (en) | 1987-04-20 |
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