SU780170A1 - Pulse train shaper for remote control apparatus - Google Patents

Description

one

The invention relates to a pulse technique.

A series pulse generator for remote control devices is known, which contains AND switches, an encoding matrix, a memory block, a comparator, a generator, a counter, an OR circuit, a one-shot and a first and second I circuit. At the output of the imager, a series of pulses is formed, which corresponds to switch 1 selected

The disadvantage of the device is its complexity.

The closest in technical essence to the claimed 1st is the pulse series shaper, which contains a pulse generator, the output of which is connected to the first input of the pulse counter, one output of which is connected to the input of the decoder, the outputs of which are connected to the contacts of the multipoint switch. , and the output pulse shaper, 25 the output of which is connected to the second input of the pulse counter C27.

This driver does not provide a sufficient number of generated series of pulses.

The aim of the invention is to increase the number of generated series of pulses.

The goal is achieved by the fact that a pulse series shaper comprising a pulse generator, the output of which is connected to the first input of a pulse counter, one output of which is connected to the input of the decoder, the outputs of which are connected to the contacts of a multi-position switch, and the output pulse shaper, the output of which is connected to the second input of the pulse counter, a trigger, a single-position switch, a logical element NOT, a logical element AND, and an adder, the output of which is connected to the input you- are entered. the input pulse driver, and the inputs are connected respectively to the common contact of the multi-position switch and the output of the logic element I, one input of which is connected via a logic element NOT to the common contact of the multi-position switch, and the second input of the logic element I is connected via a single-position switch to the trigger output whose inputs respectively connected to the output of the pulse generator and the second output of the pulse count.

The drawing is structural. electrical circuit of the described forirovatel.

The shaper contains a counter 1 pulses decoder 2, a multi-position switch 3 / adder 4, a generator 5 pulses output shaper b pulses / trigger 7, a single position switch 8, a logical element HE 9, a logical element And 10.

The drawing also shows the modulator 11 and the output amplifier 12, the input to the remote control device.

The principle of operation of the described former is the following.

In the T1 output state, the switch 3 and the switch B are in the open: tom state. In this case, the signal to the input of the logical element NOT 9 does not arrive, and from its output, zero arrives at the second input of the logic element 10. .

Since the second input of the adder 4 is connected to the open switch 3 and there is zero at its first input, then the output of the adder 4 will be zero. In this connection, the pulse shaper 6 will be rendered in a passive state, there will be no pulses at its output, the modulator 11 and the amplifier 12 will also be in the passive state. The output driver b pulses determines the initial state of the counter 1, which corresponds to zero at the output of the decoder 2 connected to switch 3 and the unit at the other outputs of the decoder 2. The pulses from the output of the pulse generator 5 fed to the setup input of the trigger 7 are determined by srb The state is one in which the output of the flip-flop 7 is one.

When one of the contacts of the switch 3 is closed, the unit enters the second input of the adder 4 from the corresponding output of deidaphrator 2, and from the output of the adder 4, the unit enters the input of the imaging unit b pulses. The shaper 6 IMPULTS doesn’t go into self-oscillation mode, and the pulses from its output go to the inputs of driver 11 and counter 1. Counter 1 changes its state for each pulse coming from the generator output of 5 pulses, resulting in zero at the outputs of the decoder 2 will begin to move sequentially. When appearing zero at the last output of the decoder 2, connected to the switch 3 at the input and output of the adder according to

zero, the driver of the pulse b goes into the passive state: as a result, the modulator 11 and the amplifier 12 from the moment the contacts of the switch 3 go out and to the moment of the left Nin zero, a packet of pulses is formed in the corresponding output of the decoder 2 equals ri-1. On admission to the installation input of the counter 1 pulse

From the output of the pulse generator b, the counter 1 goes to the initial state, and again, the modulator 11 and the amplifier 12 will receive a packet of pulses in which the number of pulses is h-1. Thus, when the NII one of the contacts of the switch 3 is closed, the output of the driver 6 impulses to the modulator 11 receives a periodic sequence of pulse packets, the number of which in the packet corresponds to one contact. switch 3 being in the closed state. :

When the other contacts of the switch are closed, the device works

5. Similarly, except that there will be a different number of pulses in the packets.

When the contact closes the switch 8 from the output of the trigger 7 to the first input of the logic element And 10

a unit arrives that puts it in a state of readiness to skip a unit at its output, which can arrive at its second input.

When the corresponding contacts of the switch 3 are closed, when the switch 8 is in the closed state, a unit enters the second input of the adder .4 from the corresponding output of the decoder 2, and as a result, n -1 pulses from the output of the imager. Further zero the output of the decoder 2 through the switch 3 is fed to the input of the logical element 9, s

j of the output of which the unit arrives at the second input of the logic element AND 10. Since its first input also has a unit, a unit appears at its output, which

l through the adder 4 is fed to the input of the pulse former, which as a result will remain in self-oscillation mode and after the appearance of zero at the output of the decoder 2. Received to the input of counter 1 from the output of

After the appearance of a zero at the output of the decoder 2, the pulse generator b will change the state of counter 1, as a result of which the specified output of the decoder 2 will have a unit that will go through switch 3 and adder 4 to the input of the pulse shaper 6, determine its self-oscillation mode . When (Overflow of the counter 1 from its output 5 Ya to the counting input of the trigger 7 post,

The pit signal, which overturns the trigger 7, results in the output of the trigger 7 on Vits zero, which will go to the first input of the logic element And 1o. The pulse former will be in the auto-oscillation mode until it appears zero a second time at the output of the decoder 2. At the first input of cyNiMaTopa 4, zero will be output from the output of the decoder 2 via switch 3 and the second input of the adder 4 will receive zero from the output of logic element I. 10, since the first input received a pulse from the output of trigger 7 through switch 8. Since the inputs of the adder 4 are zero, then at its output and input of the driver: b impulses will also be zero, as a result the former b impulses will turn into a passive e state. In the time interval between the first and second appearance of zero at the output of the decoder, the modulator 11 will receive n pulses, and in total for the period from closing the contacts of switch 3 until the appearance of zero a second time at the corresponding output of the decoder 2 per mbdl 11 2p-1 pulses will arrive. /. When pulses are received from the pulse generator 5 output to the installation inputs of the counter 1 and trigger 7, the latter are reset, and a pulse is generated () at the output of the pulse generator 5 during the cycle determined by the second pulse generator.

When other contacts of the switch 3 are closed, when the switch 8 is in the closed state, the circuit operates in a similar way, except that there will be a different number of pulses in the packets.

Thus, when the contacts of the switch 3 are closed, when the contacts of the switch 8 are open, a t -1 command is generated with the number of pulses in the packet

; for each of the commands from one to H -1, and when the contacts of the switch 3 are closed, when the contacts of switch 8 are closed, the additional commands for the number of pulses in the packet from n to 2n-1 are added. That is, the total of the (2n-1) commands d is formed by the number of pulses in the packet from one to 2n-1,

Claims (2)

1.Patent UK  1416456, class H 3 T, 12.12.75. five 2. El Shkevich, SA Automatic; control in the TVs. 1975, with. 214.