NL8300947A - Optische bandeindedetektieinrichting. - Google Patents

Optische bandeindedetektieinrichting. Download PDF

Info

Publication number
NL8300947A
NL8300947A NL8300947A NL8300947A NL8300947A NL 8300947 A NL8300947 A NL 8300947A NL 8300947 A NL8300947 A NL 8300947A NL 8300947 A NL8300947 A NL 8300947A NL 8300947 A NL8300947 A NL 8300947A
Authority
NL
Netherlands
Prior art keywords
light
light source
current
frequency
detection circuit
Prior art date
Application number
NL8300947A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8300947A priority Critical patent/NL8300947A/nl
Priority to US06/501,311 priority patent/US4570075A/en
Priority to DE19843408910 priority patent/DE3408910A1/de
Priority to GB08406402A priority patent/GB2136626B/en
Priority to FR8403815A priority patent/FR2542907B1/fr
Priority to JP59046646A priority patent/JPS59177750A/ja
Priority to ES530550A priority patent/ES530550A0/es
Priority to AT0083384A priority patent/AT382038B/de
Priority to CA000449682A priority patent/CA1224255A/en
Publication of NL8300947A publication Critical patent/NL8300947A/nl
Priority to HK417/87A priority patent/HK41787A/xx

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

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
NL8300947A 1983-03-16 1983-03-16 Optische bandeindedetektieinrichting. NL8300947A (nl)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL8300947A NL8300947A (nl) 1983-03-16 1983-03-16 Optische bandeindedetektieinrichting.
US06/501,311 US4570075A (en) 1983-03-16 1983-06-06 Optical end-of-tape detection device
DE19843408910 DE3408910A1 (de) 1983-03-16 1984-03-10 Optische bandendedetektionsanordnung
GB08406402A GB2136626B (en) 1983-03-16 1984-03-12 Optical end-of-tape detection device
FR8403815A FR2542907B1 (fr) 1983-03-16 1984-03-13 Dispositif optique de detection de fin de bande
JP59046646A JPS59177750A (ja) 1983-03-16 1984-03-13 テ−プ終端の光学検出装置
ES530550A ES530550A0 (es) 1983-03-16 1984-03-13 Un dispositivo de deteccion optica de fin de cinta
AT0083384A AT382038B (de) 1983-03-16 1984-03-13 Optische bandendetektionsanordnung zur verwendung in einem magnetbandaufnahmeund/oder wiedergabegeraet
CA000449682A CA1224255A (en) 1983-03-16 1984-03-15 Optical end-of-tape detection device
HK417/87A HK41787A (en) 1983-03-16 1987-05-28 Optical end-of-tape detection device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8300947A NL8300947A (nl) 1983-03-16 1983-03-16 Optische bandeindedetektieinrichting.
NL8300947 1983-03-16

Publications (1)

Publication Number Publication Date
NL8300947A true NL8300947A (nl) 1984-10-16

Family

ID=19841555

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8300947A NL8300947A (nl) 1983-03-16 1983-03-16 Optische bandeindedetektieinrichting.

Country Status (10)

Country Link
US (1) US4570075A (xx)
JP (1) JPS59177750A (xx)
AT (1) AT382038B (xx)
CA (1) CA1224255A (xx)
DE (1) DE3408910A1 (xx)
ES (1) ES530550A0 (xx)
FR (1) FR2542907B1 (xx)
GB (1) GB2136626B (xx)
HK (1) HK41787A (xx)
NL (1) NL8300947A (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60146935U (ja) * 1984-03-09 1985-09-30 三洋電機株式会社 テ−プエンド検出機構
JPH0437303Y2 (xx) * 1985-01-18 1992-09-02
US4730108A (en) * 1986-04-11 1988-03-08 Ampex Corporation Ambient light insensitive circuit with frequency matching
US4905106A (en) * 1986-08-28 1990-02-27 Canon Kabushiki Kaisha Device for detecting light transmissivity of detected object and record and/or reproducing apparatus using same
GB2202624A (en) * 1987-03-23 1988-09-28 Dr Basil Polychronopulos Optimum biasing system for electronic devices
US5137347A (en) * 1988-02-16 1992-08-11 Canon Kabushiki Kaisha Information retrieval apparatus
JPH0229960A (ja) * 1988-07-20 1990-01-31 Pioneer Electron Corp 磁気記録再生装置
DE3912999A1 (de) * 1989-04-20 1990-10-25 Thomson Brandt Gmbh Recorder mit bandsensoren fuer schaltvorgaege
US5222003A (en) * 1990-11-13 1993-06-22 Colorado Memory Systems Optical tape position sensing system for magnetic tape media in computer memory backup devices
DE4229043A1 (de) * 1991-09-03 1993-03-18 Funai Electric Co Bandende-erkennungsvorrichtung fuer tapedecks
US5270553A (en) * 1992-12-22 1993-12-14 Hewlett-Packard Company Beginning-of-tape sensor with automatic threshold adjustment
US5473461A (en) * 1994-08-26 1995-12-05 Interactive Light, Inc. Wide dynamic range optical receiver
JP2000235746A (ja) 1999-02-12 2000-08-29 Mitsubishi Electric Corp 検知装置
GB2346687B (en) * 1999-02-12 2000-12-13 Mitsubishi Electric Corp Sensing system with continuous and pulsed modes

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538540B2 (de) * 1966-11-10 1971-10-14 Grundig EMV Elektro Mechanische Versuchsanstalt Max Grundig, 8510 Furth Schaltungsanordnung zur demodulation eines elektrischen signals in einem optoelektrischen geraet
US3739177A (en) * 1970-12-15 1973-06-12 North American Mfg Co Light sensitive control
US3859647A (en) * 1971-08-25 1975-01-07 Infrared Ind Inc Photoelectric intrusion sensing device employing synchronous demodulation
US3838291A (en) * 1973-05-17 1974-09-24 Hewlett Packard Co Detector indicating availability and position of tape
JPS5068506A (xx) * 1973-10-22 1975-06-07
IT1025347B (it) * 1973-11-23 1978-08-10 Sued Chemie Ag Processo per la disgregazione di gusci di avena
JPS5637622B2 (xx) * 1974-04-08 1981-09-01
US3931513A (en) * 1974-09-23 1976-01-06 Ampex Corporation Sensing circuit for tape position markers
US3968361A (en) * 1975-06-23 1976-07-06 The United States Of America As Represented By The Secretary Of The Navy Laser receiver anti-sun circuit
US4320423A (en) * 1976-03-17 1982-03-16 Nahma Ag Apparatus for automatic repeated reproduction of sound on selected portions of magnetic tape or the like
US4186309A (en) * 1977-10-13 1980-01-29 Web Printing Controls Co. Inc., Web monitoring and control apparatus for web handling machinery
JPS5953616B2 (ja) * 1978-11-30 1984-12-26 パイオニア株式会社 リ−ダ−テ−プ検出装置
US4258719A (en) * 1978-12-04 1981-03-31 Hughes Aircraft Company Heart rate measurement system
JPS55145443A (en) * 1979-04-27 1980-11-13 Hitachi Ltd Photo detection circuit
JPS55157138A (en) * 1979-05-18 1980-12-06 Sanyo Electric Co Ltd Automatic reversing unit of magnetic tape
JPS5841460A (ja) * 1981-09-04 1983-03-10 Matsushita Electric Ind Co Ltd テ−プ終端検出装置
JPS58220259A (ja) * 1982-06-15 1983-12-21 Victor Co Of Japan Ltd テ−プ端検出装置

Also Published As

Publication number Publication date
AT382038B (de) 1986-12-29
GB8406402D0 (en) 1984-04-18
GB2136626B (en) 1986-10-29
ES8501156A1 (es) 1984-11-01
US4570075A (en) 1986-02-11
HK41787A (en) 1987-06-05
DE3408910A1 (de) 1984-09-20
FR2542907A1 (fr) 1984-09-21
GB2136626A (en) 1984-09-19
CA1224255A (en) 1987-07-14
ES530550A0 (es) 1984-11-01
FR2542907B1 (fr) 1989-06-02
JPS59177750A (ja) 1984-10-08
ATA83384A (de) 1986-05-15

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
A85 Still pending on 85-01-01
BV The patent application has lapsed