JPS56159855A - Tape position detecting device - Google Patents

Tape position detecting device

Info

Publication number
JPS56159855A
JPS56159855A JP6258480A JP6258480A JPS56159855A JP S56159855 A JPS56159855 A JP S56159855A JP 6258480 A JP6258480 A JP 6258480A JP 6258480 A JP6258480 A JP 6258480A JP S56159855 A JPS56159855 A JP S56159855A
Authority
JP
Japan
Prior art keywords
tape
reflection
transparent
detected
reflection part
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
Application number
JP6258480A
Other languages
Japanese (ja)
Inventor
Ichiro Nakada
Akimitsu Amano
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.)
Teac Corp
Original Assignee
Teac 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 Teac Corp filed Critical Teac Corp
Priority to JP6258480A priority Critical patent/JPS56159855A/en
Publication of JPS56159855A publication Critical patent/JPS56159855A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
    • G11B15/08—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape by photoelectric sensing

Abstract

PURPOSE:To detect the transparent part and the reflection part of a tape easily and exactly, by using the respective light sources with which are opposing to each other with a tape between for detecting both the transparent part position and the reflection part position, and detecting the light beams by the same photodetector. CONSTITUTION:The light beam from a light emission diode 24, etc. of a tape position detector 20, which transmits transparent parts 3a, 3b at both end parts of a magnetic tape 1 are detected by phototransistors (TR)16, 18, etc. which are opposing to each other with the tape 1 between. On the other hand, reflection foils 4a, 4b, etc. stuck to the tape 1 for BOT and EOT are irradiated by LEDs 17, 15 provided in the proximity of the TRs 16, 18, and the reflected rays are detected by the TRs 18, 16. According to such a simple constitution as to use a light source arranged in the other position in accordance with said transparent part and reflection part, the positions of the tape transparent part and the reflection part can be detected easily and exactly without decreasing the quantity of photodetection.
JP6258480A 1980-05-12 1980-05-12 Tape position detecting device Pending JPS56159855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6258480A JPS56159855A (en) 1980-05-12 1980-05-12 Tape position detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6258480A JPS56159855A (en) 1980-05-12 1980-05-12 Tape position detecting device

Publications (1)

Publication Number Publication Date
JPS56159855A true JPS56159855A (en) 1981-12-09

Family

ID=13204508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6258480A Pending JPS56159855A (en) 1980-05-12 1980-05-12 Tape position detecting device

Country Status (1)

Country Link
JP (1) JPS56159855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894551U (en) * 1981-12-18 1983-06-27 株式会社リコー printer printing ribbon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894551U (en) * 1981-12-18 1983-06-27 株式会社リコー printer printing ribbon
JPS6323165Y2 (en) * 1981-12-18 1988-06-24

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