JPS5643562A - Frequency counter - Google Patents
Frequency counterInfo
- Publication number
- JPS5643562A JPS5643562A JP11948779A JP11948779A JPS5643562A JP S5643562 A JPS5643562 A JP S5643562A JP 11948779 A JP11948779 A JP 11948779A JP 11948779 A JP11948779 A JP 11948779A JP S5643562 A JPS5643562 A JP S5643562A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- counter
- frequency division
- input
- gate
- 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.)
- Pending
Links
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
PURPOSE: To consitute the counter circuit by a simple decimal counter, by providing a frequency division circuit whose regular gate time is set to 2-n seconds and frequency division ratio is 10l.2-n, on the input circuit of the counter decimally counting an input signal which is taken in by the regular gate time.
CONSTITUTION: An input signal provided to the terminal 1 is added to the input of the frequency division circuit 2, a signal of its output is input to the decimal counter 4 through the gate circuit 3, and it is decimally counted. Also, the contents of each frequency divider of the counter 4 are provided to the latch circuit 5, and are displayed in the indicator 9 through the decoder 8. A quartz for a clock is used for the timing generator 6 which provides a timing signal to the gate circuit 3, the counter 4 and the latch circuit 5, and the gate time provided to the gate circuit 3 is set to 2-nsec. Also, the frequency division ratio of the frequency division circuit 2 is set to 10l.2-n. Thus, a quartz vibrator for a clock, which is high in precision and low in cost, can be used for the timing generator 6 as it is, and also the circuit can be formed by binary frequency division. Therefore, the counter circuit can be formed by a simple decimal counter.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11948779A JPS5643562A (en) | 1979-09-18 | 1979-09-18 | Frequency counter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11948779A JPS5643562A (en) | 1979-09-18 | 1979-09-18 | Frequency counter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5643562A true JPS5643562A (en) | 1981-04-22 |
Family
ID=14762480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11948779A Pending JPS5643562A (en) | 1979-09-18 | 1979-09-18 | Frequency counter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5643562A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6118514U (en) * | 1984-07-06 | 1986-02-03 | 日立電線株式会社 | woven cable |
-
1979
- 1979-09-18 JP JP11948779A patent/JPS5643562A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6118514U (en) * | 1984-07-06 | 1986-02-03 | 日立電線株式会社 | woven cable |
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