RU94031419A - Data reader - Google Patents

Data reader

Info

Publication number
RU94031419A
RU94031419A RU94031419/09A RU94031419A RU94031419A RU 94031419 A RU94031419 A RU 94031419A RU 94031419/09 A RU94031419/09 A RU 94031419/09A RU 94031419 A RU94031419 A RU 94031419A RU 94031419 A RU94031419 A RU 94031419A
Authority
RU
Russia
Prior art keywords
input
output
control
register
comparator
Prior art date
Application number
RU94031419/09A
Other languages
Russian (ru)
Other versions
RU2089937C1 (en
Inventor
Е.В. Ларкин
И.В. Абузова
Ф.А. Данилкин
Original Assignee
Тульский государственный технический университет
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 Тульский государственный технический университет filed Critical Тульский государственный технический университет
Priority to RU94031419A priority Critical patent/RU2089937C1/en
Publication of RU94031419A publication Critical patent/RU94031419A/en
Application granted granted Critical
Publication of RU2089937C1 publication Critical patent/RU2089937C1/en

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  • Analogue/Digital Conversion (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

FIELD: optomechanical and optoelectronic instrumentation engineering; inventions scanning devices. SUBSTANCE: data reader has generator, control-signal shaper, linear photosensitive charge-coupled device whose electric inputs are connected to outputs of control-signal shaper and optical input is optically coupled with light-signal source, first comparator whose first input is connected to register output, second input is combined with register data input, and output is connected to register setting input; in addition, it is provided with controlled frequency divider whose input is connected to generator input and output, to control-signal shaper input, second and third comparators whose first inputs are combined and connected to register output, second input of second comparator is connected to output of first reference-code generator, and second input of third comparator is connected to output of second reference-code generator, controlled counter whose output is connected to control input of controlled frequency divider, sync input is combined with register clearing input and connected to control-signal shaper output; one control input of counter is connected to second comparator output and other control input of counter is connected to third comparator output; it also has analog-to-digital converter whose control input is connected to control-signal shaper output, data input, to linear photosensitive charge-coupled device output, and output, to data input of register. EFFECT: improved data reading accuracy. 3 dwg

Claims (1)

Изобретение относится к области оптико-механического и оптико-электронного приборостроения и может быть использовано в устройствах сканирования изобретений. Цель изобретения - повышение точности считывания информации. Сущность изобретения заключается в том, что в устройстве для считывания информации, содержащем генератор, формирователь управляющих сигналов, линейный фоточувствительный прибор с зарядовой связью, электрические входы которого подключены к выходам формирователя управляющих сигналов, а оптический вход имеет оптическую связь с источником оптического сигнала, первый компаратор, первый вход которого подключен к выходу регистра, второй вход объединен с информационным входом регистра, а выход подключен к установочному входу регистра, введены управляемый делитель частоты, вход которого подключен к выходу генератора, а выход - к входу формирователя управляющих сигналов, второй и третий компараторы, первые входы которых объединены и подключены к выходу регистра, второй вход второго компаратора подключен к выходу первого генератора опорных кодов, а второй вход третьего компаратора подключен к выходу второго генератора опорных кодов, управляемый счетчик, выход которого подключен к управляющему входу управляемого делителя частоты, синхровход объединен с входом обнуления регистра и подключен к выходу формирователя управляющих сигналов, один управляющий вход счетчика подключен к выходу второго компаратора, а другой управляющий вход счетчика подключен к выходу третьего компаратора, аналого-цифровой преобразователь, управляющий вход которого подключен к выходу формирователя управляющих сигналов, информационный вход - к выходу линейного фоточувствительного прибора с зарядовой связью, а выход подключен к информационному входу регистра.The invention relates to the field of optical-mechanical and optical-electronic instrumentation and can be used in scanning devices of inventions. The purpose of the invention is to increase the accuracy of reading information. The essence of the invention lies in the fact that in a device for reading information containing a generator, a driver of control signals, a linear photosensitive device with charge coupling, the electrical inputs of which are connected to the outputs of the driver of control signals, and the optical input has an optical connection with an optical signal source, the first comparator , the first input of which is connected to the register output, the second input is combined with the information input of the register, and the output is connected to the installation input of the register, We have a controlled frequency divider, the input of which is connected to the output of the generator, and the output - to the input of the driver of control signals, the second and third comparators, the first inputs of which are combined and connected to the output of the register, the second input of the second comparator is connected to the output of the first generator of reference codes, and the second the input of the third comparator is connected to the output of the second reference code generator, a controlled counter, the output of which is connected to the control input of the controlled frequency divider, the sync input is combined with the reg it is connected to the output of the driver of control signals, one control input of the counter is connected to the output of the second comparator, and the other control input of the counter is connected to the output of the third comparator, an analog-to-digital converter, the control input of which is connected to the output of the driver of control signals, the information input to the output linear photosensitive device with charge coupling, and the output is connected to the information input of the register.
RU94031419A 1994-08-25 1994-08-25 Device for normalization of read image signal RU2089937C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94031419A RU2089937C1 (en) 1994-08-25 1994-08-25 Device for normalization of read image signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94031419A RU2089937C1 (en) 1994-08-25 1994-08-25 Device for normalization of read image signal

Publications (2)

Publication Number Publication Date
RU94031419A true RU94031419A (en) 1997-04-20
RU2089937C1 RU2089937C1 (en) 1997-09-10

Family

ID=20160038

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94031419A RU2089937C1 (en) 1994-08-25 1994-08-25 Device for normalization of read image signal

Country Status (1)

Country Link
RU (1) RU2089937C1 (en)

Also Published As

Publication number Publication date
RU2089937C1 (en) 1997-09-10

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