GB789520A - Improvements in or relating to magnetic tape reproducing apparatus - Google Patents

Improvements in or relating to magnetic tape reproducing apparatus

Info

Publication number
GB789520A
GB789520A GB3703754A GB3703754A GB789520A GB 789520 A GB789520 A GB 789520A GB 3703754 A GB3703754 A GB 3703754A GB 3703754 A GB3703754 A GB 3703754A GB 789520 A GB789520 A GB 789520A
Authority
GB
United Kingdom
Prior art keywords
tracks
tape
reproduction
track
reproducing
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
GB3703754A
Inventor
Claude Langdon Richards
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB3703754A priority Critical patent/GB789520A/en
Publication of GB789520A publication Critical patent/GB789520A/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
    • G11B15/60—Guiding record carrier
    • 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
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

789,520. Magnetic reproducing apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Dec. 20, 1955 [Dec. 22, 1954], No. 37037/54. Class 40 (2). A magnetic tape apparatus adapted for use with both a tape of a first kind carrying complementary tracks for simultaneous reproduc. tion and of a second kind carrying independent tracks for consecutive reproduction, comprises a multi-track reproducing head having a sufficient number of sections to reproduce simultaneously the separate signals from the respective tracks of a tape of the first kind, at least one separate single-track reproducing head for the reproduction of signals from at least one of the tracks of a tape of the second kind, and selective means for rendering the different heads effective. The embodiment described shows an apparatus with a tape 3 carrying twin tracks in which a double-track head 6 is employed for reproducing simultaneous signal tracks, such as in a binaural system, and separate single-track heads 7, 8 for reproducing independent signal tracks. The apparatus is preferably provided with a three-position manual control 27 coupled to electromagnetic relays 28 by means of which a switch mechanism 23 appropriately conditions the circuits of the heads 6, 7, 8, amplifiers 24 and loud-speakers 25, 26. Position A of control 27 conditions the apparatus for simultaneous reproduction, while positions B and C condition the apparatus for reproduction of the independent recordings, respectively, for the reproduction of one track or the other. In an alternative arrangement, Fig. 2, the control 27 controls the bringing into operation of pressure members 29, 30, 31, to bring the tape into contact with one or other of the heads 6, 7, 8 respectively.
GB3703754A 1954-12-22 1954-12-22 Improvements in or relating to magnetic tape reproducing apparatus Expired GB789520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3703754A GB789520A (en) 1954-12-22 1954-12-22 Improvements in or relating to magnetic tape reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3703754A GB789520A (en) 1954-12-22 1954-12-22 Improvements in or relating to magnetic tape reproducing apparatus

Publications (1)

Publication Number Publication Date
GB789520A true GB789520A (en) 1958-01-22

Family

ID=10393227

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3703754A Expired GB789520A (en) 1954-12-22 1954-12-22 Improvements in or relating to magnetic tape reproducing apparatus

Country Status (1)

Country Link
GB (1) GB789520A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126154B (en) * 1959-10-09 1962-03-22 Telefonbau & Normalzeit Gmbh Tape guide for tape recorders
JPS4890213A (en) * 1972-02-28 1973-11-24
JPS4890214A (en) * 1972-02-29 1973-11-24
WO1999049464A1 (en) * 1998-03-26 1999-09-30 Plasmon Lms, Inc. A device to partially contact a magnetic recording head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126154B (en) * 1959-10-09 1962-03-22 Telefonbau & Normalzeit Gmbh Tape guide for tape recorders
JPS4890213A (en) * 1972-02-28 1973-11-24
JPS4890214A (en) * 1972-02-29 1973-11-24
WO1999049464A1 (en) * 1998-03-26 1999-09-30 Plasmon Lms, Inc. A device to partially contact a magnetic recording head

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