RU95111066A - Bank note authenticating device - Google Patents

Bank note authenticating device

Info

Publication number
RU95111066A
RU95111066A RU95111066/09A RU95111066A RU95111066A RU 95111066 A RU95111066 A RU 95111066A RU 95111066/09 A RU95111066/09 A RU 95111066/09A RU 95111066 A RU95111066 A RU 95111066A RU 95111066 A RU95111066 A RU 95111066A
Authority
RU
Russia
Prior art keywords
diode
input
comparator
series
output
Prior art date
Application number
RU95111066/09A
Other languages
Russian (ru)
Other versions
RU2096831C1 (en
Inventor
В.А. Вольнов
Original Assignee
В.А. Вольнов
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 В.А. Вольнов filed Critical В.А. Вольнов
Priority to RU95111066A priority Critical patent/RU2096831C1/en
Publication of RU95111066A publication Critical patent/RU95111066A/en
Application granted granted Critical
Publication of RU2096831C1 publication Critical patent/RU2096831C1/en

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  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

FIELD: identification of images; development of devices enabling authentication of bank notes. SUBSTANCE: device has photoelectric detector of infrared marks on bank note whose output is connected through high-frequency filter to first input of comparator, reference voltage supply whose outputs are connected to second input of comparator, and final stage. Novelty is that connected in parallel with final stage input are storage capacitor and discharge resistor and comparator output is connected to final stage input through series-connected isolating capacitor and first diode; second diode of same polarity as first diode is parallel-connected to circuit set up of series-connected first diode and storage capacitor. EFFECT: improved electric circuit of device, improved validity of bank note authentication due to elimination of its false operation.

Claims (1)

Изобретение относится к технике распознавания изображений и может быть использовано при разработке и создании устройств позволяющих определять подлинность денежных купюр, изображение на которых отпечатано с помощью краски, позволяющей создавать композицию из инфракрасных меток. Предложенное техническое решение направлено на усовершенствование электрической схемы устройства контроля подлинности, включающей в себя фотоэлектрический датчик инфракрасных меток на банкноте, выход которого подключен через фильтр верхних частот к первому входу компаратора, источник опорного напряжения, подключенный своим выходом ко второму входу компаратора и исполнительный каскад. В отличие от известных в предлагаемой электрической схеме схеме устройства контроля подлинности параллельно входу исполнительного каскада включены накопительный конденсатор и разрядный резистор, а выход компаратора подключен к входу исполнительного каскада через, последовательно соединенные, разделительный конденсатор и первый диод, при этом параллельно цепи, включающей в себя, последовательно соединенные, первый диод и накопительный конденсатор, подключен второй диод с полярностью согласной полярности первого диода. Предлагаемое устройство контроля подлинности банкноты позволяет повысить достоверность е контроля за счет исключения его ложных срабатываний.The invention relates to techniques for image recognition and can be used in the development and creation of devices that can determine the authenticity of banknotes, the image on which is printed using ink, which allows you to create a composition of infrared tags. The proposed technical solution is aimed at improving the electrical circuit of the authentication device, which includes a photoelectric sensor of infrared tags on a banknote, the output of which is connected through a high-pass filter to the first input of the comparator, a reference voltage source connected by its output to the second input of the comparator, and an executive stage. In contrast to the authenticity device circuit known in the proposed electric circuit, a storage capacitor and a discharge resistor are connected in parallel to the input of the executive stage, and the comparator output is connected to the input of the executive stage through a series-connected isolation capacitor and a first diode, parallel to the circuit, including connected in series, the first diode and the storage capacitor, the second diode is connected with the polarity of the consonant polarity of the first diode. The proposed device for controlling the authenticity of banknotes can improve the reliability of e-control by eliminating its false positives.
RU95111066A 1995-06-28 1995-06-28 Device which verifies banknote validity RU2096831C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95111066A RU2096831C1 (en) 1995-06-28 1995-06-28 Device which verifies banknote validity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95111066A RU2096831C1 (en) 1995-06-28 1995-06-28 Device which verifies banknote validity

Publications (2)

Publication Number Publication Date
RU95111066A true RU95111066A (en) 1997-06-10
RU2096831C1 RU2096831C1 (en) 1997-11-20

Family

ID=20169482

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95111066A RU2096831C1 (en) 1995-06-28 1995-06-28 Device which verifies banknote validity

Country Status (1)

Country Link
RU (1) RU2096831C1 (en)

Also Published As

Publication number Publication date
RU2096831C1 (en) 1997-11-20

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