SU1505368A1 - Photoelectric reading device - Google Patents

Abstract

The invention relates to automation and computer hardware and can be used, for example, in optical input devices. In order to understand the scope of application due to the increased dynamic. The range of DIRECTED oHTit signals to the device for controlling the initial installation of photoreceivers, inputting the counting and the code converter based on the EPRS, allows adjusting the exposure time of the change in the momentum of the initial installation of the photoreceivers, and oddly from another, which will allow the use of devices with different illumination of objects and their removal: from the reader. 2 Il.

Description

The invention relates to automation and computing and can be used, for example, in; optical information input devices,

The aim of the invention is to expand the range of application by increasing the dynamic range of the received optical optical systems.

Fig. 1 shows the functional scheme of the device; Fig. 2 shows the time diagram of the device operation.

The device contains a matrix of photo receivers. 1, shift register 2, converter I) 3 codes, clock generator 4, counter 5, decoder 6, output bus 7, bus 8 and bus 9 gp1tani.

The time diagram shows av & i signals 10, II, 12 at the outputs of the shift register .-) 2 and signals 13, 14, 15 at the outputs of the converter of codes 3.

The code converter can be made on the basis of the EPROM.

The device works as follows

As a result of recalculation of pulses of the clock generator 4, the address of a greg generator of 3 codes is generated at the output of counter 5, at the first output — a shift pulse-l to shift information in the shift of register 2, and at the output of the decoder 6 — the initial setting of register 2,

As a result, the outputs of the register alternately in time are pulses that control the reading of information alternately from one of the photodetectors 1 of the array.

The initial installation of photoprism 1 matrix is performed. pulse converter 3 kodpp. Thanks to the program ;; lwak Cvtgvg

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Compiled by P.Mil ev Editor T, Orlovska Tehred L.Oliynyk

Order- 4059

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VNIISH State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 4/5, Moscow, Zh-35, Raushsk nab. 113035

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Claims (1)

Claim A photosensitive device comprising a clock, a photodetector array, a shift register, the outputs of which are connected to the sensing inputs of the respective photodetectors of the matrix, the photodetector outputs of the matrix are combined and are an information output of the device, characterized in that, in order to expand the scope by increasing dynamic range of the received optical signals, it contains a counter, a decoder and a coddv converter, the output of which is connected to the installation inputs of sponding photodetectors matrix, and the address inputs to the respective outputs of the counter and to the inputs of a decoder, adjusting the input register connected to the output of the decoder and shift information input - with the output of the first counter discharge counter input connected to the output of the clock generator. ♦ J FAL.1 ”-P —___ p_ —P - ^ —-—__— p_, ~ 'ΤΊ_ n _... n _________ -P- -P fifteen - · rm Fick 2.