SU1564686A1 - Indication device - Google Patents

Abstract

The invention relates to automation and computing and is intended to indicate alphanumeric information. The purpose of the invention is to improve the reliability of the device is achieved by introducing single vibrators with appropriate functional connections. In the device, the one-shot eliminates the supply to individual segments of the indicators of direct current, equal to the pulsed one, exceeding the average permissible current for the indicators. 1 il.

Description

one

(21) 4468907 / 24-24

(22) 08/01/88

(46) 05/15/90. Bnhl. Number 18

(71) Special Design Bureau of Kirovograd Radio Products Plant

(72) V.P. Gozbenko and N. D. Tsykalo (53) 681.327.11 (088.8)

(56) Biryukov S. Dynamic indications. - Radio, 1979, W 12, pp.26-27. USSR author's certificate. No. 1198562, cl. G 09 G 3/04, 1984.

(54) DEVICE FOR INDICATION (57) The invention relates to automation and computing technology and is intended to indicate alphanumeric information. The purpose of the invention is to improve the reliability of the device is achieved by introducing single vibrators with appropriate functional connections. In the device, the one-shot eliminates the supply to individual segments of the indicators of direct current, equal to the pulsed one, exceeding the average permissible current for the indicators. 1 il.

The invention relates to automation and computing and can be used in the construction of a device for controlling digital information.

The purpose of the invention is to increase the reliability of the device.

The drawing shows the functional diagram of the device.

The device comprises a pulse generator 1, a counter 2, a first decoder 3, switches 4, a second decoder 5, single vibrators 6, keys 7 and indicators 8.

The device works as follows.

The pulses from generator 1 arrive at counter 2. The states of the outputs of counter 2 change from the arrivals of each pulse. The code from counter 2 goes to the information inputs of the first decoder 3 and to the control inputs of switches 4 "Switches 4 alternately connect all bits of the input code to the second the decoder 5, the output signals from which are sent to the information inputs (segments) of the indicators 8. From the first decoder 3 pulses are alternately transmitted to single vibrators 6 o By the difference of these pulses single vibrators form a similar key impulses that control the keys 7. The keys 7 at the same time commute the impulse current to the indicator segments 8.

If from the first decoder 3 to single-shot 6 instead of pulses a constant voltage of the logic level comes, the single-shot will not generate pulses opening the keys 7.

Improving the reliability is achieved due to the fact that the one-shot 6 exclude the supply of direct current to individual segments of the indicators 8, equal to

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Claims (1)

impulse, exceeding the average permissible current for indicators, in case of failure of the generator or counter, or the first decoder, as well as when the device is first turned on in the case of idle (unconfigured) generator or counter, first decoder Formula of the invention A display device containing serially connected pulse generator, a counter and the first decoder, the keys whose outputs Compiled by O. Pridorogin Editor O. Spesivykh Tekhred L. Serdgakova Corrector N. Revsk Zykaz 1163 Circulation 389 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., A / 5 connected to the control inputs of the indicators, the information inputs of which are connected to the outputs of the second decoder, the inputs of which are connected to the outputs of the switches, whose information inputs are the information inputs of the device, and the control inputs connected to the outputs of the counter, characterized in that, in order to increase reliability devices, it contains one-shot, the inputs of which are connected to the outputs of the first decoder, and the outputs - to the inputs of keys. Subscription