JPS58119235U - Lock detection device for automatic frequency control equipment - Google Patents
Lock detection device for automatic frequency control equipmentInfo
- Publication number
- JPS58119235U JPS58119235U JP1489182U JP1489182U JPS58119235U JP S58119235 U JPS58119235 U JP S58119235U JP 1489182 U JP1489182 U JP 1489182U JP 1489182 U JP1489182 U JP 1489182U JP S58119235 U JPS58119235 U JP S58119235U
- Authority
- JP
- Japan
- Prior art keywords
- output
- detection device
- frequency control
- control equipment
- lock detection
- 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
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、従来の自動周波数制御装置用ロック検出装置
の構成図、第２図は、ロック検出装置のバンドパスフィ
ルタの入力と出力を説明する図、第３図は、この考案に
よる自動周波数制御装置用ロック検出装置の一実施例を
示す構成図、第４図は、各部の波形を説明する図である
。
図においてｌａ、ｌｂはそれぞれ第１、第２−のバンド
パスフィルタ、２ａ、２ｂはそれぞれ第１、第２のコン
パレータ、３はホールド回路、４はＤフリップフロップ
である。なお図中同一あるいは相当部分には同一符号を
付して示しである。Fig. 1 is a block diagram of a conventional lock detection device for an automatic frequency control device, Fig. 2 is a diagram explaining the input and output of a bandpass filter of the lock detection device, and Fig. 3 is an automatic frequency control device according to this invention. FIG. 4, a configuration diagram showing one embodiment of a lock detection device for a control device, is a diagram illustrating waveforms of each part. In the figure, la and lb are first and second band-pass filters, 2a and 2b are first and second comparators, respectively, 3 is a hold circuit, and 4 is a D flip-flop. Note that the same or corresponding parts in the figures are indicated by the same reference numerals.
Claims (1)
１、第２のバンドパスフィルタと、上記第１、第２のバ
ンドパスフィルタそれぞれに対応して設けられ、それぞ
れの出力を基準電圧と比較する第１、第２のコンパレー
タと、上記第１のコンパレータの出力を一定時間保持し
ておくホールド回路と、上記ホールド回路の出力及び第
２のコンパレータの出力からロックを検出する、Ｄフリ
ップフロップとで構成された自動周波数制御装置用ロッ
ク検出装置。First and second bandpass filters having different time constants that shape the output waveform of the frequency discriminator are provided corresponding to each of the first and second bandpass filters, and each output is used as a reference. D: first and second comparators for comparing the voltage, a hold circuit for holding the output of the first comparator for a certain period of time, and detecting lock from the output of the hold circuit and the output of the second comparator; A lock detection device for automatic frequency control equipment consisting of a flip-flop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1489182U JPS58119235U (en) | 1982-02-05 | 1982-02-05 | Lock detection device for automatic frequency control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1489182U JPS58119235U (en) | 1982-02-05 | 1982-02-05 | Lock detection device for automatic frequency control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58119235U true JPS58119235U (en) | 1983-08-13 |
Family
ID=30027343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1489182U Pending JPS58119235U (en) | 1982-02-05 | 1982-02-05 | Lock detection device for automatic frequency control equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119235U (en) |
-
1982
- 1982-02-05 JP JP1489182U patent/JPS58119235U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58119235U (en) | Lock detection device for automatic frequency control equipment | |
| JPS596334U (en) | Peak hold circuit | |
| JPS59189335U (en) | Auto clear circuit | |
| JPS60173079U (en) | Simple voltage detection circuit | |
| JPS5962520U (en) | Damaged gear identification device | |
| JPS5834438U (en) | Waveform shaping circuit | |
| JPS58149849U (en) | Ringer signal detection device | |
| JPS58194539U (en) | PPM demodulation circuit | |
| JPS58173949U (en) | Burst signal receiving circuit | |
| JPS5914449U (en) | Synchronous signal input circuit | |
| JPS6098070U (en) | Carrier detection circuit | |
| JPS615031U (en) | signal detection circuit | |
| JPS60127565U (en) | Frequency discrimination circuit | |
| JPS5891173U (en) | Peak level detection circuit | |
| JPS5857176U (en) | Frequency difference discrimination circuit | |
| JPS59129273U (en) | Noise removal circuit | |
| JPS5883863U (en) | Synchronous signal separation circuit | |
| JPS58161339U (en) | Intermediate frequency circuit in FM tuner | |
| JPS58169771U (en) | Signal discrimination circuit | |
| JPS58101176U (en) | Overfrequency/underfrequency detection device | |
| JPS58186619U (en) | Electronic volume control device | |
| JPS60116527U (en) | timer | |
| JPS59104620U (en) | noise filter | |
| JPS60149273U (en) | Synchronous signal separation circuit | |
| JPS6021971U (en) | pulse identification circuit |