JPH01171184U - - Google Patents

Info

Publication number
JPH01171184U
JPH01171184U JP6098388U JP6098388U JPH01171184U JP H01171184 U JPH01171184 U JP H01171184U JP 6098388 U JP6098388 U JP 6098388U JP 6098388 U JP6098388 U JP 6098388U JP H01171184 U JPH01171184 U JP H01171184U
Authority
JP
Japan
Prior art keywords
signal
reproduced
dropout
output
frequency
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
Application number
JP6098388U
Other languages
Japanese (ja)
Other versions
JP2533637Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988060983U priority Critical patent/JP2533637Y2/en
Publication of JPH01171184U publication Critical patent/JPH01171184U/ja
Application granted granted Critical
Publication of JP2533637Y2 publication Critical patent/JP2533637Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す回路ブロツク
図、第２図イ，ロ，ハ，ニ，ホ及びヘは、その説
明に供する特性図である。 主な図番の説明、２……復調回路、３……１Ｈ
遅延回路、４……切換回路、９……遅延アンプ、
１０……ＥＸ―ＯＲゲート、１１……第１単安定
マルチバイブレータ、１２……第２単安定マルチ
バイブレータ。 FIG. 1 is a circuit block diagram showing one embodiment of the present invention, and FIG. 2 A, B, C, D, H, and F are characteristic diagrams for explaining the same. Explanation of main drawing numbers, 2...Demodulation circuit, 3...1H
Delay circuit, 4...Switching circuit, 9...Delay amplifier,
10...EX-OR gate, 11...first monostable multivibrator, 12...second monostable multivibrator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 周波数変調された信号が記録された信号記録媒
体から再生された再生信号のドロツプアウトを検
出するドロツプアウト検出装置であつて、前記再
生信号から変調周波数の逓倍の周波数の信号を得
る逓倍回路と、該逓倍回路から出力される出力信
号をトリガーとして作動すると共に該出力信号の
１周期に応じて出力パルス幅が設定される再トリ
ガー可能な単安定マルチバイブレータとを備え、
該単安定マルチバイブレータから発生される出力
パルスの停止を検出することにより信号記録媒体
から再生された再生信号のドロツプアウトを検出
する様にしたことを特徴とするドロツプアウト検
出装置。 A dropout detection device for detecting a dropout of a reproduced signal reproduced from a signal recording medium on which a frequency-modulated signal is recorded, comprising: a multiplier circuit for obtaining a signal with a frequency that is a multiple of a modulation frequency from the reproduced signal; A re-triggerable monostable multivibrator that operates using an output signal output from the circuit as a trigger and whose output pulse width is set according to one cycle of the output signal,
A dropout detection device characterized in that a dropout of a reproduced signal reproduced from a signal recording medium is detected by detecting a stop of an output pulse generated from the monostable multivibrator.
JP1988060983U 1988-05-09 1988-05-09 Dropout detector Expired - Lifetime JP2533637Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988060983U JP2533637Y2 (en) 1988-05-09 1988-05-09 Dropout detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988060983U JP2533637Y2 (en) 1988-05-09 1988-05-09 Dropout detector

Publications (2)

Publication Number Publication Date
JPH01171184U true JPH01171184U (en) 1989-12-04
JP2533637Y2 JP2533637Y2 (en) 1997-04-23

Family

ID=31286674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988060983U Expired - Lifetime JP2533637Y2 (en) 1988-05-09 1988-05-09 Dropout detector

Country Status (1)

Country Link
JP (1) JP2533637Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198511A (en) * 1981-05-29 1982-12-06 Hitachi Ltd Detecting method for dropout

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198511A (en) * 1981-05-29 1982-12-06 Hitachi Ltd Detecting method for dropout

Also Published As

Publication number Publication date
JP2533637Y2 (en) 1997-04-23

Similar Documents

Publication Publication Date Title
JPH01171184U (en)
JPS5850501Y2 (en) magnetic recording and playback device
JPH03102105U (en)
JPS58123687U (en) Regenerated chroma signal processing circuit
JPS6190047U (en)
JPS5810275U (en) Information recording area detection device
JPH0246483U (en)
JPH03106506U (en)
JPS61178504U (en)
JPH0353087U (en)
JPS6391859U (en)
JPS5875352U (en) tape recorder
JPH02103976U (en)
JPH0182581U (en)
JPH0435214U (en)
JPS6277464U (en)
JPS6155222U (en)
JPH0472356U (en)
JPH02105271U (en)
JPS6248003U (en)
JPS6374878U (en)
JPS6290435U (en)
JPS61118151U (en)
JPS6251568U (en)
JPS6269819U (en)