JPS57183683A - Tape positon detector - Google Patents

Tape positon detector

Info

Publication number
JPS57183683A
JPS57183683A JP56069507A JP6950781A JPS57183683A JP S57183683 A JPS57183683 A JP S57183683A JP 56069507 A JP56069507 A JP 56069507A JP 6950781 A JP6950781 A JP 6950781A JP S57183683 A JPS57183683 A JP S57183683A
Authority
JP
Japan
Prior art keywords
tape
detectors
tape position
plus
detected
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
JP56069507A
Other languages
Japanese (ja)
Inventor
Katsufumi Komori
Yasuo Ono
Yasushi Tootomi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56069507A priority Critical patent/JPS57183683A/en
Publication of JPS57183683A publication Critical patent/JPS57183683A/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • G11B27/13—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer
    • G11B27/17—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer using electrical sensing means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

Abstract

PURPOSE:To increase the detecting accuracy of the tape position and to feed automatically the tape up to the set position, by using an object to be detected which turns synchronously with a tape feeding reel shaft and eliminating an error between the actual tape position and a counter output value. CONSTITUTION:A rotary disk 2 plus detectors 3a and 3b, i.e., the objects to be detected for detection of the tape position are attached to a tape feeding reel shaft 1. The disk 2 contains a part 2a of a high optical reflection factor and a part 2b of a low optical reflection factor. the detectors 3a and 3b comprise light emitting elements 3a1 and 3b1 plus photoelectric transducers 3a2 and 3b2 respectively. Furthermore the detectors 3a and 3b are distributed so as to range tape position detection signals 21 and 22 in the phase difference 0 deg.<tape position detection signal <180 deg. respectively. An FF5 and an FF7 are actuated by the signals 21 and 22 respectively, and the tape travelling direction is discriminated. Then the relative value of the tape position is counted by a counter 11. This counted value is compared 13 with the relative value at the desired position of the set 12 tape. Thus the feed of the tape is controlled 14.
JP56069507A 1981-05-08 1981-05-08 Tape positon detector Pending JPS57183683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56069507A JPS57183683A (en) 1981-05-08 1981-05-08 Tape positon detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56069507A JPS57183683A (en) 1981-05-08 1981-05-08 Tape positon detector

Publications (1)

Publication Number Publication Date
JPS57183683A true JPS57183683A (en) 1982-11-12

Family

ID=13404717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56069507A Pending JPS57183683A (en) 1981-05-08 1981-05-08 Tape positon detector

Country Status (1)

Country Link
JP (1) JPS57183683A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5436710A (en) * 1977-08-26 1979-03-17 Sharp Corp Tape counter device for tape recorder
JPS5548883A (en) * 1978-09-30 1980-04-08 Toshiba Corp Magnetic recording and reproducing unit
JPS5548885A (en) * 1978-10-03 1980-04-08 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing unit
JPS5562569A (en) * 1978-11-01 1980-05-12 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
JPS5562543A (en) * 1978-10-31 1980-05-12 Teac Co Automatic repeat reproducing device of tape recorder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5436710A (en) * 1977-08-26 1979-03-17 Sharp Corp Tape counter device for tape recorder
JPS5548883A (en) * 1978-09-30 1980-04-08 Toshiba Corp Magnetic recording and reproducing unit
JPS5548885A (en) * 1978-10-03 1980-04-08 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing unit
JPS5562543A (en) * 1978-10-31 1980-05-12 Teac Co Automatic repeat reproducing device of tape recorder
JPS5562569A (en) * 1978-11-01 1980-05-12 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device

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