GB721391A - Improvements relating to magnetic tape recording - Google Patents

Improvements relating to magnetic tape recording

Info

Publication number
GB721391A
GB721391A GB1325052A GB1325052A GB721391A GB 721391 A GB721391 A GB 721391A GB 1325052 A GB1325052 A GB 1325052A GB 1325052 A GB1325052 A GB 1325052A GB 721391 A GB721391 A GB 721391A
Authority
GB
United Kingdom
Prior art keywords
track
playback
recording
speed
frequency
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
GB1325052A
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.)
TMM Research Ltd
Original Assignee
TMM Research 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 TMM Research Ltd filed Critical TMM Research Ltd
Priority to GB1325052A priority Critical patent/GB721391A/en
Publication of GB721391A publication Critical patent/GB721391A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

721,391. Automatic speed control systems. T. M. M. (RESEARCH), Ltd., and WITCOMBE, L. May 26, 1953 [May 26, 1952], No. 13250/52. Drawings to Specification. Class 38 (4). A constant frequency signal recorded on one track of a two track magnetic recording tape is compared with the output of a tunable oscillator during playback of a recording on the other track, and the difference frequency utilized to control playback speed by field control of the tape driving motor. By setting the frequency of the oscillator, playback may be at the recording speed or any multiple thereof, the latter being useful when examining variations of data recorded at low frequency during scientific experiments.
GB1325052A 1952-05-26 1952-05-26 Improvements relating to magnetic tape recording Expired GB721391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1325052A GB721391A (en) 1952-05-26 1952-05-26 Improvements relating to magnetic tape recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1325052A GB721391A (en) 1952-05-26 1952-05-26 Improvements relating to magnetic tape recording

Publications (1)

Publication Number Publication Date
GB721391A true GB721391A (en) 1955-01-05

Family

ID=10019550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1325052A Expired GB721391A (en) 1952-05-26 1952-05-26 Improvements relating to magnetic tape recording

Country Status (1)

Country Link
GB (1) GB721391A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948467A (en) * 1956-12-31 1960-08-09 Gulf Research Development Co Function unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948467A (en) * 1956-12-31 1960-08-09 Gulf Research Development Co Function unit

Similar Documents

Publication Publication Date Title
GB1534307A (en) Drive mechanism for magnetic recording/reproducing apparatus
GB1490307A (en) Magnetic recording and reproducing apparatus
GB721391A (en) Improvements relating to magnetic tape recording
GB1114980A (en) Magnetic reproducing system
GB983190A (en) Improvements in or relating to magnetic tape recording and playback systems
GB1106784A (en) Improvements in or relating to recording and/or playback systems
GB1189145A (en) Tracking Mechanism for Magnetic Tape Players
GB1329928A (en) Apparatus for recording and or playing back magnetic recordings
GB1347531A (en) Magnetic tape device
GB935752A (en) Improvements in or relating to variable time delay apparatus
GB961634A (en) Improvements in or relating to magnetic tape recording and/or reproducing apparatus
GB1129866A (en) Recording and playback system
GB1056403A (en) Improvements in or relating to apparatus for reproducing speech signals
GB1085695A (en) Method for improving the velocity accuracy of a servo control system
JPS5390910A (en) Tracking controller for magnetic picture recorder/reproducer
GB1263631A (en) Magnetic recording and reproducing apparatus for video signals
ES404641A1 (en) Removable interchangeable holder device for a recorder tape
GB899118A (en) Magnetic tape search system
GB655005A (en) Improvements in speed measuring and controlling devices
JPS52111706A (en) Magnetic recording and reproducing system
JPS5356006A (en) Magnetic record reproducing system
GB838664A (en) Improvements in tape recorders incorporating change speed devices
GB1230040A (en)
JPS52102008A (en) Servo system of magnetic recorder/reproducer
GB1254922A (en) Multiple sequence sound reproducer