SU879636A1 - Indicating device - Google Patents

Description

(54) DEVICE FOR INDICATION

The invention relates to the field of instrumentation and can be used in discrete analog indicators to display information represented by a binary code. There are known display devices comprising a counter, logic elements, a decoder, and a display unit 1. The drawbacks of such devices are high energy consumption, due to the fact that all elements of the scale indicator light with the same brightness, while the reading level is the upper limit of the light of the column. The aim of the invention is to reduce power consumption by providing a uniform decrease in the luminance of the luminescent indicator elements as they move away from the luminous border. The goal is achieved by the fact that in the display device, there are two registers, the outputs of which are connected to the inputs of the comparison circuit, a pulse generator connected to the first input of the second register, a dial indicator and And elements, the output of the comparison circuit is connected to the second input of the second register. The first inputs of the And elements are connected to the outputs of the first register, the second inputs with the outputs of the second register, and the outputs with indicator elements of the scale indicator. The block diagram of the device for display is shown in the drawing. The device contains the first register 1, the elements And 2, the second register 3, comparison 4, the pulse generator 5 and the indicator elements 6. The device operates as follows. Displayed information in the form of a binary code is recorded in register 1. Signals from the unit outputs of the triggers of this register are sent to the first inputs of the elements AND 2. The second inputs of the elements AND receive information from the outputs of the register 3, If the direct register codes 1 and the reverse codes of the register 3 At the output of the comparison circuit 4, a signal is generated which sets the register 2 to all bits of the register 3 and prepares the elements for operation. 2. Signals coming from the unit bits of register 1 open the corresponding elements AND and the associated

with their outputs indicator elements. Upon receipt of the clock pulses from the pulse generator 5 into the register 3 at the last one starting with the least significant bit, the O code begins to be recorded. Upon receipt of the first, second, third, etc. clock pulses are sequentially closed first, second, third, etc. And the first, second, third, etc. are turned off. indicator elements.

This continues until the register code 1 becomes equal to the reverse code of register 3 and the output of the comparison circuit does not produce a signal that sets the bits of register 3 to one state.

During one cycle of writing information to register 1, several cycles of writing zero code to register 3 occur, and the frequency of clock pulses is chosen so that the inclusion of indicator elements is perceived. as a decrease in brightness ..

Thus, the turn-on time and brightness of the display element, the number of which corresponds to the value of the displayed parameter, will be maximum compared to brightness i L- L T

the remaining display elements forming the luminous column.

This display device has reduced the power consumption by half.

Invention Formula

A display device containing two registers, the outputs of which are connected to the inputs of the comparison circuit, a pulse generator connected to the first input of the second register, a dial indicator and elements AND, differing from the fact that, in order to reduce the power consumption, the output of the comparison circuit connected to the second input of the second register, the first inputs of the And elements are connected to the outputs of the first register, the second inputs to the outputs of the second register, and the outputs to the indicator elements of the scale indicator.

Sources of information taken into account during the examination

1. USSR author's certificate 525133, cl. G 06 K 15/18, 1973 (prototype). Ttn

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Claims (1)

Claim A display device containing two registers, the outputs of which are connected to the inputs of the comparison circuit, a pulse generator connected to the first input of the second register, a dial indicator and AND elements, which are different from 15 to reduce power consumption, in it the output of the comparison circuit is connected to the second input of the second register, the first inputs of the elements And are connected to the outputs of the first register, the second 20 inputs are connected to the outputs of the second register, and the outputs are connected with indicator elements of the scale indicator.