SU670253A3 - Device for reproducing from video record - Google Patents

Device for reproducing from video record

Info

Publication number
SU670253A3
SU670253A3 SU772441299A SU2441299A SU670253A3 SU 670253 A3 SU670253 A3 SU 670253A3 SU 772441299 A SU772441299 A SU 772441299A SU 2441299 A SU2441299 A SU 2441299A SU 670253 A3 SU670253 A3 SU 670253A3
Authority
SU
USSR - Soviet Union
Prior art keywords
reproducing
video record
input
amplifier
video
Prior art date
Application number
SU772441299A
Other languages
Russian (ru)
Inventor
Пьер Лакотт Жан
Ле Карвенне Франсуа
Клод Леюро Жан
Опранди Пьер
Поль Пельтье Жан
Пюш Клод
Original Assignee
Томсон-Брандт (Фирма)
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 Томсон-Брандт (Фирма) filed Critical Томсон-Брандт (Фирма)
Application granted granted Critical
Publication of SU670253A3 publication Critical patent/SU670253A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Television Signal Processing For Recording (AREA)
  • Optical Recording Or Reproduction (AREA)

Description

(54) УСТРОЙСТВО ДЛЯ ВОСПРОИЗВЕДЕНИЯ С ВИДЕОГРАА1ПЛ.ЛСТИНКИ(54) DEVICE FOR PLAYING BACKGROUND FROM VIDEO PLAYER 1

-лЮмепП) Л нынолионы в ниде фотолиодоо, соодипонных соотнетстиенно через первый II )ii уеи.11Г1ч 1и 4 и 5 с входг1ми суммаiopa t). сумматора 6 подсоединен | одном входу дифференциального сн;1ите .1  7 неноередстЕ енно, а к другому входу через соединенн1)1е ноеледовате-льно линию задерокки 8 и третий усилитель 9, в)1Г1олненный е уиранл юшнм входом. Выход с ммаTojia 6 соединен также через одн()вибрато) 10 и интегратор II с унравл юии1м входом третьего усилител  9, а вьгход дифференциального усилител  7 - через демодул тор 12 е В1,1ходной шиной 13.-LomepP) nowadays in the photoliodoo nida, co-dipone sortetistinno through the first II) ii price.11G1ch 1 and 4 and 5 with input sum iopa t). adder 6 connected | one input of the differential; 1ite .1 7 is not unreasonable, and to the other input through the connected1) 1e independent electric line of the delay 8 and the third amplifier 9, c) 1G1 with a single urannom input. The output from mmaTojia 6 is also connected via one () vibrato) 10 and integrator II with the third input of the third amplifier 9, and the input of the differential amplifier 7 via the demodulator 12 e B1,1 input bus 13.

Пред.чагаемое устройство в процессе восн 1оизведени  производит преобразование 3 кстре м у м о в рез ул ьта та вое н рон з веде и и   в переходы импульсов последовательности, которую затем демодулируют.The preprogrammed device, in the process of playback, converts 3 to the edge of the result in a way that is right in the transitions of the pulses of the sequence, which is then demodulated.

П|)ед.1агаемое изобретенне позвол ет в значите.льной степени уменьшить искажени  результата воспроизведени  с видеограмн .лаетиики н обеспечивает относительную ироетоту устройства дл  воснроизведенн  с видео -рам1ыастиики.P |) unit. 1, the invention invented makes it possible to significantly reduce the distortion of the result of reproduction from videograms of science and does not provide a relative model of the device for playback from video clips.

Claims (2)

1.Патент ФРГ Лд 2024539 кл 42t 3-44 1972.1. The patent of Germany Ld 2024539 CL 42t 3-44 1972. 2.Патент ФРГ Л 1903822. кл. 42 t 7/00, 1973.2. The patent of Germany L 1903822. class. 42 t 7/00, 1973.
SU772441299A 1976-01-16 1977-01-14 Device for reproducing from video record SU670253A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601126A FR2338613A1 (en) 1976-01-16 1976-01-16 Correction for transcription faults on pressed video disc - employs optical detection system to provide signals with rectangular transitions

Publications (1)

Publication Number Publication Date
SU670253A3 true SU670253A3 (en) 1979-06-25

Family

ID=9168031

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772441299A SU670253A3 (en) 1976-01-16 1977-01-14 Device for reproducing from video record

Country Status (2)

Country Link
FR (1) FR2338613A1 (en)
SU (1) SU670253A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841447A (en) * 1981-09-04 1983-03-10 Hitachi Ltd Optical spot controlling system
DE3635840A1 (en) * 1986-10-22 1988-05-05 Thomson Brandt Gmbh SCANNING SCANNING SYSTEM

Also Published As

Publication number Publication date
FR2338613A1 (en) 1977-08-12
FR2338613B1 (en) 1980-04-30

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