GB2111945B - Magnetic tape cassette - Google Patents

Magnetic tape cassette

Info

Publication number
GB2111945B
GB2111945B GB08229672A GB8229672A GB2111945B GB 2111945 B GB2111945 B GB 2111945B GB 08229672 A GB08229672 A GB 08229672A GB 8229672 A GB8229672 A GB 8229672A GB 2111945 B GB2111945 B GB 2111945B
Authority
GB
United Kingdom
Prior art keywords
magnetic tape
tape cassette
cassette
magnetic
tape
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.)
Expired
Application number
GB08229672A
Other versions
GB2111945A (en
Inventor
Erich Langer
Helmut Mach
Harald Melwich
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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
Priority claimed from AT634178A external-priority patent/AT356916B/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2111945A publication Critical patent/GB2111945A/en
Application granted granted Critical
Publication of GB2111945B publication Critical patent/GB2111945B/en
Expired 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
    • G11B15/005—Programmed access in sequence to indexed parts of tracks of operating tapes, by driving or guiding the tape
    • 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
    • G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing
    • 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
    • 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
    • G11B27/34—Indicating arrangements 
    • 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
    • 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
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
GB08229672A 1978-09-01 1982-10-18 Magnetic tape cassette Expired GB2111945B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT634178A AT356916B (en) 1978-09-01 1978-09-01 RECORDING SYSTEM AND CASSETTE FOR SUCH A RECORDING SYSTEM
GB7929923A GB2030755B (en) 1978-09-01 1979-08-29 Recording system and cassette for such a recording system

Publications (2)

Publication Number Publication Date
GB2111945A GB2111945A (en) 1983-07-13
GB2111945B true GB2111945B (en) 1983-11-02

Family

ID=25603001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08229672A Expired GB2111945B (en) 1978-09-01 1982-10-18 Magnetic tape cassette

Country Status (2)

Country Link
GB (1) GB2111945B (en)
SG (1) SG11084G (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8500226A (en) * 1984-02-22 1985-09-16 Thomson Brandt Gmbh DEVICE FOR AUTOMATICLY FINDING A DESIRED POINT OF A MAGNETIC TAPE WITH A VIDEO AND / OR AUDIO RECORDING DEVICE.
JPH0411225Y2 (en) * 1985-12-27 1992-03-19
AT386090B (en) * 1986-11-14 1988-06-27 Philips Nv RECORDING AND / OR REPRODUCTION DEVICE FOR MOBILE RECORDABLE MEDIA
KR910003393Y1 (en) * 1988-08-26 1991-05-24 삼성전자 주식회사 Mode automatic fixing circuit of video tape
MX9201981A (en) * 1991-05-06 1994-08-31 Polygram Int Holding PRE-RECORDED CASSETTE FOR A SYSTEM TO MAGNETICALLY RECORD / PLAY THE SIGNALS.
JP3106738B2 (en) * 1992-10-21 2000-11-06 ソニー株式会社 Magnetic tape recording / reproducing device and magnetic tape unit

Also Published As

Publication number Publication date
SG11084G (en) 1985-01-04
GB2111945A (en) 1983-07-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980829