JPS5995271U - Frequency determination device - Google Patents
Frequency determination deviceInfo
- Publication number
- JPS5995271U JPS5995271U JP1983181306U JP18130683U JPS5995271U JP S5995271 U JPS5995271 U JP S5995271U JP 1983181306 U JP1983181306 U JP 1983181306U JP 18130683 U JP18130683 U JP 18130683U JP S5995271 U JPS5995271 U JP S5995271U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- frequency determination
- determination signal
- state
- 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
- Electronic Switches (AREA)
- Manipulation Of Pulses (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の考え方に基づく周波数判定回路を用いた
回路切換装置のブロック図、第２図は本考案の一実施例
に係る周波数判定装置を用いた回路切換装置のブロック
図、第３． ４． ５図は第２図示構成の動作を説明す
る為のパルス波形図、第６図は本考案の他の実施例に係
る周波数判定装置を用いた回路切換装置のブロック図で
ある。
２１．２□、２３・・・・・・被切換回路、１０・・・
・・・１／２分周用フリップ・フロップ回路、１２．１
４・・・・・・ワンショット回路、１６．１８・・・・
・・Ｄ型フリップ・フロップ回路、２０．２２・・・・
・・ナンド・ゲート、 ２４・・・・・・Ｓ−Ｒ
フリップ・フロップ。FIG. 1 is a block diagram of a circuit switching device using a frequency determining circuit based on a conventional concept, FIG. 2 is a block diagram of a circuit switching device using a frequency determining device according to an embodiment of the present invention, and FIG. 4. FIG. 5 is a pulse waveform diagram for explaining the operation of the configuration shown in the second diagram, and FIG. 6 is a block diagram of a circuit switching device using a frequency determining device according to another embodiment of the present invention. 21.2□, 23...Circuit to be switched, 10...
...1/2 frequency division flip-flop circuit, 12.1
4... One-shot circuit, 16.18...
・・D type flip-flop circuit, 20.22・・・・
...Nando Gate, 24...S-R
flip flop.
Claims (1)
する手段、前記第１の周波数判定信号よ□り微少に大き
な第２の周波数判定信号を発生する手段、入力周波数か
前記第１の周波数判定信号よりも大きい時に第１の状態
、第２の周波数判定信号よりも小さい時に第２の状態と
なり、入力周波数か前記第１の周波数判定信号と第２の
周波数判定信号の中間にある時は、以前の状態を変化さ
せない様な第１の判定手段及び、入力周波数を判定する
為の第３の周波数判定信号を発生する手段、前記第３の
周波数判定信号より微少に大きな第４の周波数判定信号
を発生する手段、入力周波数が゛前記第３の周波数判定
信号よりも大きい時に第１の状態、第４の周波数判定信
号よりも小ざい時に第２の状態となり、入力周波数が前
記第３の周波数判定信号と第４の周波数判定信号の中間
にある時は、以前の状態を変化させない様な第２の判定
手段を少なくとも有し、前記判定手段により複数の電気
回路を選択することを特徴とする周波数判定装置。means for generating a first frequency determination signal for determining the input frequency; means for generating a second frequency determination signal slightly larger than the first frequency determination signal; When it is larger than the judgment signal, it is in the first state, when it is smaller than the second frequency judgment signal, it is in the second state, and when the input frequency is between the first frequency judgment signal and the second frequency judgment signal, it is in the first state. , a first determination means that does not change the previous state; a third frequency determination signal for determining the input frequency; and a fourth frequency determination signal that is slightly larger than the third frequency determination signal. Means for generating a signal is in a first state when the input frequency is higher than the third frequency determination signal, is in a second state when it is smaller than the fourth frequency determination signal, and is in the second state when the input frequency is higher than the third frequency determination signal. When the frequency determination signal is between the frequency determination signal and the fourth frequency determination signal, it is characterized by having at least a second determination means that does not change the previous state, and selecting a plurality of electric circuits by the determination means. frequency determination device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP482476A JPS5288375A (en) | 1976-01-19 | 1976-01-19 | Frequency identifying apparatus |
| JP1983181306U JPS5995271U (en) | 1976-01-19 | 1983-11-24 | Frequency determination device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP482476A JPS5288375A (en) | 1976-01-19 | 1976-01-19 | Frequency identifying apparatus |
| JP1983181306U JPS5995271U (en) | 1976-01-19 | 1983-11-24 | Frequency determination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5995271U true JPS5995271U (en) | 1984-06-28 |
Family
ID=59690202
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP482476A Pending JPS5288375A (en) | 1976-01-19 | 1976-01-19 | Frequency identifying apparatus |
| JP1983181306U Pending JPS5995271U (en) | 1976-01-19 | 1983-11-24 | Frequency determination device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP482476A Pending JPS5288375A (en) | 1976-01-19 | 1976-01-19 | Frequency identifying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JPS5288375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180104110A (en) * | 2016-01-27 | 2018-09-19 | 마이크로 모우션, 인코포레이티드 | Gas energy measuring method and related apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5570121A (en) * | 1978-11-20 | 1980-05-27 | Sanyo Electric Co Ltd | Frequency switching circuit |
-
1976
- 1976-01-19 JP JP482476A patent/JPS5288375A/en active Pending
-
1983
- 1983-11-24 JP JP1983181306U patent/JPS5995271U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180104110A (en) * | 2016-01-27 | 2018-09-19 | 마이크로 모우션, 인코포레이티드 | Gas energy measuring method and related apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5288375A (en) | 1977-07-23 |
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