SU1280706A1 - Device for suppressing background noise of video signal - Google Patents

Device for suppressing background noise of video signal Download PDF

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Publication number
SU1280706A1
SU1280706A1 SU823552139A SU3552139A SU1280706A1 SU 1280706 A1 SU1280706 A1 SU 1280706A1 SU 823552139 A SU823552139 A SU 823552139A SU 3552139 A SU3552139 A SU 3552139A SU 1280706 A1 SU1280706 A1 SU 1280706A1
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SU
USSR - Soviet Union
Prior art keywords
background noise
output
signal
video signal
input
Prior art date
Application number
SU823552139A
Other languages
Russian (ru)
Inventor
Владимир Яковлевич Голубчик
Павел Михайлович Сиверский
Original Assignee
Ордена Ленина Институт Кибернетики Им.В.М.Глушкова
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Application filed by Ордена Ленина Институт Кибернетики Им.В.М.Глушкова filed Critical Ордена Ленина Институт Кибернетики Им.В.М.Глушкова
Priority to SU823552139A priority Critical patent/SU1280706A1/en
Application granted granted Critical
Publication of SU1280706A1 publication Critical patent/SU1280706A1/en

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Abstract

Изобретение относитс  к области автоматики и вычислительной техники и может быть использовано при построении устройств- дл  отображени  информации. Цель изобретени  - повьшение точности устройства - достигаетс  тем, что наложенна  на видеосигнал фонова  помеха про вл етс  на воспроизводимом на экране ЭТ 3 изображении в виде горизонтальных темных и светлых полос, перемещающихс  по экрану. Сигнал фоновой помехи вычитаетс  из сигнала видеоусилител  1 и на выходе сумматора 4 образуетс  только информас ционный сигнал, очищенный от фоновой помехи. 1 ил. СЛThe invention relates to the field of automation and computer technology and can be used in the construction of devices for displaying information. The purpose of the invention — to increase the accuracy of the device — is achieved by the fact that the background noise superimposed on the video signal appears on the ET 3 image reproduced on the screen in the form of horizontal dark and light bands moving along the screen. The background noise signal is subtracted from the video amplifier 1 signal and at the output of the adder 4, only the information signal is generated, which is cleared of background noise. 1 il. SL

Description

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Claims (1)

40 Формула изобретени 40 claims Устройство дл  подавлени  фоновой помехи видеосигналов, содержащее . блок пам ти, выход которого соеди45 нен с первым входом сумматора, выход которого  вл етс  выходом устройства , отличающеес  тем, что, с целью повыщени  точности устройства, оно содержит ждущийA device for suppressing background noise of video signals comprising. a memory block, the output of which is connected to the first input of the adder, the output of which is the output of the device, characterized in that, in order to increase the accuracy of the device, it contains a waiting 50 мультивибратор, вход которого. вл етс  входом строчных синхроимпульсов а выход подключен к первому входу блока пам ти, вторые входы блока пам ти и сумматора  вл ютс  видео55 входом устройства.50 multivibrator whose input. is the input of the horizontal sync pulses and the output is connected to the first input of the memory unit, the second inputs of the memory unit and the adder are the video55 input of the device. ПодписноеSubscription
SU823552139A 1982-12-24 1982-12-24 Device for suppressing background noise of video signal SU1280706A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU823552139A SU1280706A1 (en) 1982-12-24 1982-12-24 Device for suppressing background noise of video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU823552139A SU1280706A1 (en) 1982-12-24 1982-12-24 Device for suppressing background noise of video signal

Publications (1)

Publication Number Publication Date
SU1280706A1 true SU1280706A1 (en) 1986-12-30

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Application Number Title Priority Date Filing Date
SU823552139A SU1280706A1 (en) 1982-12-24 1982-12-24 Device for suppressing background noise of video signal

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SU (1) SU1280706A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Кривошеев М.И. Основы телевизионных измерений. М.: Св зь, 1976, с. 61. Полупроводниковые кодирукнцие и декодирующие преобразователи напр жени . /Под ред.В.Б.Смолова и Н.А.Смирнова, Л.:Энерги , 1967, , с. 199., рис. 2-32. *

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