GB1420514A - Video tape recording and editing apparatus press for squashing a lump of dough - Google Patents

Video tape recording and editing apparatus press for squashing a lump of dough

Info

Publication number
GB1420514A
GB1420514A GB4533373A GB4533373A GB1420514A GB 1420514 A GB1420514 A GB 1420514A GB 4533373 A GB4533373 A GB 4533373A GB 4533373 A GB4533373 A GB 4533373A GB 1420514 A GB1420514 A GB 1420514A
Authority
GB
United Kingdom
Prior art keywords
speed
tape
recording
headwheel
compares
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
GB4533373A
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of GB1420514A publication Critical patent/GB1420514A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • G11B27/13Indexing; 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/024Electronic editing of analogue information signals, e.g. audio or video signals on tapes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/90Tape-like record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

1420514 Automatic control of speed SONY CORP 27 Sept 1973 [28 Sept 1972] 45333/73 Heading G3R A tape driven capstan motor in a video tape recorder is connected in a speed control loop having a comparator which compares the actual motor speed with a fixed frequency source during recording and during playback compares the speed of the headwheel with the linear speed of the tape to provide a reference signal for'the capstan motor control loop. It is stated that by controlling the capstan motor in this manner little disturbance is produced when editing the tape by re-recording a passage. The arrangement shown includes an helical scan tape transport and a recording head arrangement with the speed of the headwheel 18 controlled by the brake which has coil 52 connected to a phase comparator measuring the difference between the recorded signal phase and the headwheel phase as measured by pick-off 49, 51. The capstan motor speed is measured by pulse generator 39 and the output of coil 41 passes to detector 42 before being used in summation device 43 to control the power supplied to the motor. The reference signal supplied to device 43 is the output of comparator 57 which compares, when recording, the output of coil 41 with the fixed frequency oscillator 84 output. During playback switches 83, 56 are operated and comparator 57 now compares the signal replayed from tape 32 through control transducer 59 with the headwheel speed signal from pick-off 49, 51. During the edit playback condition the tape speed will be controlled as in normal playbacks and when the switches are returned to the recording position only a very small change in motor speed will be needed to correct the phase of operation. In a modification, Fig: 7 (not shown), the oscillator 84 is replaced by a frequency divider circuit which accepts signals from the horizontal synchronizing pulses or alternatively an oscillator operating at 3.58 MHz which is the colour burst frequency.
GB4533373A 1972-09-28 1973-09-27 Video tape recording and editing apparatus press for squashing a lump of dough Expired GB1420514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11264672U JPS5228970Y2 (en) 1972-09-28 1972-09-28

Publications (1)

Publication Number Publication Date
GB1420514A true GB1420514A (en) 1976-01-07

Family

ID=14591930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4533373A Expired GB1420514A (en) 1972-09-28 1973-09-27 Video tape recording and editing apparatus press for squashing a lump of dough

Country Status (7)

Country Link
JP (1) JPS5228970Y2 (en)
CA (1) CA998469A (en)
DE (1) DE2348928C3 (en)
FR (1) FR2201518B1 (en)
GB (1) GB1420514A (en)
IT (1) IT994808B (en)
NL (1) NL181322C (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046463A (en) * 1959-01-05 1962-07-24 Minnesota Mining & Mfg Speed regulating apparatus for recording media
US3450832A (en) * 1966-01-03 1969-06-17 Ampex Electronic editing system for helical scan video tape recorder

Also Published As

Publication number Publication date
CA998469A (en) 1976-10-12
FR2201518A1 (en) 1974-04-26
DE2348928A1 (en) 1974-04-11
NL7313382A (en) 1974-04-01
DE2348928C3 (en) 1978-04-27
DE2348928B2 (en) 1977-09-08
IT994808B (en) 1975-10-20
FR2201518B1 (en) 1977-09-09
JPS5228970Y2 (en) 1977-07-02
NL181322B (en) 1987-02-16
NL181322C (en) 1987-07-16
JPS4968911U (en) 1974-06-15

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930926