JPH0159904U - - Google Patents

Info

Publication number
JPH0159904U
JPH0159904U JP15491887U JP15491887U JPH0159904U JP H0159904 U JPH0159904 U JP H0159904U JP 15491887 U JP15491887 U JP 15491887U JP 15491887 U JP15491887 U JP 15491887U JP H0159904 U JPH0159904 U JP H0159904U
Authority
JP
Japan
Prior art keywords
head
separating
clogging
demodulating
playback
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
JP15491887U
Other languages
Japanese (ja)
Other versions
JPH0516643Y2 (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 JP15491887U priority Critical patent/JPH0516643Y2/ja
Publication of JPH0159904U publication Critical patent/JPH0159904U/ja
Application granted granted Critical
Publication of JPH0516643Y2 publication Critical patent/JPH0516643Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Description

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

第１図は本考案における一実施例のブロツク図
、第２図は実施例のトレース状態を示す説明図、
第３図は実施例の再生出力を示す説明図、第４図
は、従来例のトレース状態を示す説明図、第５図
は従来例の再生出力を示す説明図、第６図、第７
図は目づまりの状態を説明する説明図である。 ４……ＦＭ復調、５……垂直同期信号分離回路
、６……判別回路、９……ヘツドモータ駆動回路
、１１……システムコントロール回路。 FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a trace state of the embodiment,
FIG. 3 is an explanatory diagram showing the reproduction output of the embodiment, FIG. 4 is an explanatory diagram showing the trace state of the conventional example, FIG. 5 is an explanatory diagram showing the reproduction output of the conventional example, and FIGS.
The figure is an explanatory diagram illustrating the state of clogging. 4...FM demodulation, 5...Vertical synchronization signal separation circuit, 6...Discrimination circuit, 9...Head motor drive circuit, 11...System control circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 継ぎ撮り時の所定量のテープの巻き戻し時にお
いて垂直同期信号付近の再生コンベロープが最大
となる様にトラツキング設定する手段と、再生信
号を復調するＦＭ復調手段と、この復調出力より
垂直同期信号を分離する分離手段と、この分離手
段に基づきヘツド目づまりを判別する判別手段と
を備え、前記巻き戻し時にヘツド目づまりを検出
してなるビデオテープレコーダのヘツド目づまり
検出装置。 means for setting tracking so that the playback envelope near the vertical synchronization signal is maximized when rewinding the tape by a predetermined amount during splicing; an FM demodulation means for demodulating the playback signal; and an FM demodulation means for demodulating the playback signal; A clogging head detecting device for a video tape recorder, comprising a separating means for separating the head and a discriminating means for determining whether the head is clogged based on the separating means, and detecting the clogging of the head during rewinding.
JP15491887U 1987-10-09 1987-10-09 Expired - Lifetime JPH0516643Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15491887U JPH0516643Y2 (en) 1987-10-09 1987-10-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15491887U JPH0516643Y2 (en) 1987-10-09 1987-10-09

Publications (2)

Publication Number Publication Date
JPH0159904U true JPH0159904U (en) 1989-04-14
JPH0516643Y2 JPH0516643Y2 (en) 1993-05-06

Family

ID=31432081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15491887U Expired - Lifetime JPH0516643Y2 (en) 1987-10-09 1987-10-09

Country Status (1)

Country Link
JP (1) JPH0516643Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05197932A (en) * 1991-09-09 1993-08-06 Samsung Electron Co Ltd Foreign-matter removing device for head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05197932A (en) * 1991-09-09 1993-08-06 Samsung Electron Co Ltd Foreign-matter removing device for head

Also Published As

Publication number Publication date
JPH0516643Y2 (en) 1993-05-06

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