JPS5573947A - Leader tape detector - Google Patents

Leader tape detector

Info

Publication number
JPS5573947A
JPS5573947A JP14721678A JP14721678A JPS5573947A JP S5573947 A JPS5573947 A JP S5573947A JP 14721678 A JP14721678 A JP 14721678A JP 14721678 A JP14721678 A JP 14721678A JP S5573947 A JPS5573947 A JP S5573947A
Authority
JP
Japan
Prior art keywords
light
light emitting
emitting body
electric signal
photo detector
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
JP14721678A
Other languages
Japanese (ja)
Other versions
JPS5953616B2 (en
Inventor
Kiichiro Furuguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP53147216A priority Critical patent/JPS5953616B2/en
Publication of JPS5573947A publication Critical patent/JPS5573947A/en
Publication of JPS5953616B2 publication Critical patent/JPS5953616B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To prevent malfunction due to disturbing light by projecting light from a light emitting body on a photo detection part continuously by a body of revolution, etc., with a slit.
CONSTITUTION: Light emitting body 7 and photo detector 8 are arranged with tape 6 interposed. Light emitting body 7 is inserted into reference pin 9 and then fixed. Reference pin 9, having slit 9a formed, revolves on light emitting body 7 through pulley 10 fixed under pin 9 and belt 12 as capstan 5 rotates. At the time of the opaque magnetic surface of tape 6, no light reaches photo detector 8. At the time of its transparent leader tape, intermittent light is detected by photo detector 8 and then converted into an electric signal and band-pass filter 2o filters only its electric signal, thereby performing automatic stop and reversing operations through mechanism control circuit 22. Here, an electric signal generated due to disturbing light is cut off. Therefore, malfunction caused by disturbing light can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP53147216A 1978-11-30 1978-11-30 Leader tape detection device Expired JPS5953616B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53147216A JPS5953616B2 (en) 1978-11-30 1978-11-30 Leader tape detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53147216A JPS5953616B2 (en) 1978-11-30 1978-11-30 Leader tape detection device

Publications (2)

Publication Number Publication Date
JPS5573947A true JPS5573947A (en) 1980-06-04
JPS5953616B2 JPS5953616B2 (en) 1984-12-26

Family

ID=15425188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53147216A Expired JPS5953616B2 (en) 1978-11-30 1978-11-30 Leader tape detection device

Country Status (1)

Country Link
JP (1) JPS5953616B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542907A1 (en) * 1983-03-16 1984-09-21 Philips Nv OPTICAL END-OF-BAND DETECTION DEVICE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221510A (en) * 1985-03-25 1986-10-01 松下電工株式会社 Wiring fixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542907A1 (en) * 1983-03-16 1984-09-21 Philips Nv OPTICAL END-OF-BAND DETECTION DEVICE

Also Published As

Publication number Publication date
JPS5953616B2 (en) 1984-12-26

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