JPH0398705U - - Google Patents

Info

Publication number
JPH0398705U
JPH0398705U JP714890U JP714890U JPH0398705U JP H0398705 U JPH0398705 U JP H0398705U JP 714890 U JP714890 U JP 714890U JP 714890 U JP714890 U JP 714890U JP H0398705 U JPH0398705 U JP H0398705U
Authority
JP
Japan
Prior art keywords
recording
magnetic tape
detection circuit
dubbing
reproduction
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
JP714890U
Other languages
Japanese (ja)
Other versions
JP2542471Y2 (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 JP714890U priority Critical patent/JP2542471Y2/en
Publication of JPH0398705U publication Critical patent/JPH0398705U/ja
Application granted granted Critical
Publication of JP2542471Y2 publication Critical patent/JP2542471Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Description

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

第１図は、この考案によるアフレコ位置検出回
路の一実施例の構成を示すブロツク図、第２図Ａ
〜Ｃはアフレコ時のＲＥＣ／ＰＢの切換タイミン
グ図、第３図Ａ〜Ｈはアフレコを行つた区間を再
生したときのタイミング図である。 １……磁気テープ、２Ａ，２Ｂ……回転磁気ヘ
ツド、３……ＲＦ増幅器、４……低域通過フイル
タ、５……ウインドウコンパレータ、６……カウ
ンタ、７……Ｄフリツプフロツプ、８……表示回
路、９……ＡＴＦ回路、１０……タイミング発生
回路、１１……ドラムモータ、１２……ドラムＦ
Ｇセンサー、１３……ドラムＰＧセンサー。 FIG. 1 is a block diagram showing the configuration of an embodiment of the post-recording position detection circuit according to this invention, and FIG.
3A to 3C are timing diagrams for switching REC/PB during dubbing, and FIGS. 3A to 3H are timing diagrams for reproducing the section in which dubbing was performed. 1... Magnetic tape, 2A, 2B... Rotating magnetic head, 3... RF amplifier, 4... Low pass filter, 5... Window comparator, 6... Counter, 7... D flip-flop, 8... Display Circuit, 9...ATF circuit, 10...Timing generation circuit, 11...Drum motor, 12...Drum F
G sensor, 13...Drum PG sensor.

Claims (1)

【実用新案登録請求の範囲】 磁気テープ上のトラツクを磁気ヘツドにより順
次走査して得られる再生信号から録再切換時に生
ずる信号変化を抽出して録再切換を検出する録再
切換検出回路と、 前記録再切換検出回路による検出結果に基づい
て前記磁気テープ上にアフレコ動作を行なつたか
否かの履歴および前記磁気テープ上の位置を表示
する表示回路と、 を備えて成ることを特徴とするアフレコ位置、履
歴検出回路。[Scope of Claim for Utility Model Registration] A recording/reproduction switching detection circuit that detects a recording/reproduction switching by extracting a signal change that occurs at the time of recording/reproduction switching from a reproduction signal obtained by sequentially scanning tracks on a magnetic tape with a magnetic head; A display circuit that displays a history of whether or not dubbing has been performed on the magnetic tape and a position on the magnetic tape based on a detection result by a previous recording reswitching detection circuit. Dubbing position and history detection circuit.
JP714890U 1990-01-30 1990-01-30 Post-record position and history detection circuit Expired - Lifetime JP2542471Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP714890U JP2542471Y2 (en) 1990-01-30 1990-01-30 Post-record position and history detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP714890U JP2542471Y2 (en) 1990-01-30 1990-01-30 Post-record position and history detection circuit

Publications (2)

Publication Number Publication Date
JPH0398705U true JPH0398705U (en) 1991-10-15
JP2542471Y2 JP2542471Y2 (en) 1997-07-30

Family

ID=31510810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP714890U Expired - Lifetime JP2542471Y2 (en) 1990-01-30 1990-01-30 Post-record position and history detection circuit

Country Status (1)

Country Link
JP (1) JP2542471Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006264601A (en) * 2005-03-25 2006-10-05 Mitsubishi Electric Corp Thermal blanket and its mounting method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006264601A (en) * 2005-03-25 2006-10-05 Mitsubishi Electric Corp Thermal blanket and its mounting method
JP4549909B2 (en) * 2005-03-25 2010-09-22 三菱電機株式会社 Thermal blanket for satellite and its mounting method

Also Published As

Publication number Publication date
JP2542471Y2 (en) 1997-07-30

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