SU940223A1 - Tape-driving mechanism control device - Google Patents

Description

one

The invention relates to the field of accumulation of information, namely, devices for controlling tape-carrying mechanisms.

A device for controlling a tape drive mechanism is known, comprising a command driver connected to the tape drive mechanism 1.

This device has a relatively simple design, but does not allow for sufficient ease of operation of the tape drive mechanism.

It is also known a device for controlling a tape drive mechanism comprising a command driver whose outputs are connected to a tape drive mechanism connected to the inputs of a response switchboard, a clock generator connected by a output to a binary counter, the outputs of which are connected to the first and second memory blocks and to the decoder. connected to the first input of the element OR, remote control, connected to the inputs of the shaper of the code of the switched on mode of operation connected by the outputs to the block. program selection, trigger and delay line 2.

The known device allows to ensure the relative ease of control of the tape mechanism, however, it is characterized by a significant error in the control of the belt mechanism.

The purpose of the invention is to reduce the error of control of the tape mechanism.

Claims (2)

This goal is achieved due to the fact that a shaper of a previous operating mode code, connected to the outputs of the shaper of the switched on mode of operation and to the inputs of the program selection block, and an additional decoder connected to the outputs of the first memory block, are inserted into the device for controlling the tape mechanism; connected to the driver commands connected to the output of the clock generator and with the input of the delay line connected, the output to the switch response signal connected to the second input of the element and OR connected by the output to the first trigger input, and the outputs of the program selection block are connected to the inputs of the first and second memory blocks, while the outputs of the additional decoder are connected to the shaper of the activated mode code, to the shaper of the previous operating mode code, and to the second trigger input, the output of which is connected to the first memory unit and to the second memory unit connected by the outputs to the command generator and to the switch of response signals. The drawing shows the proposed device for controlling the tape mechanism. The device contains a driver 1 commands, the outputs of which are connected to the tape mechanism 2, connected with the inputs of the switch 3 response signals, and the clock generator 4. The output of the clock generator 4 is connected to the binary counter 5, the outputs of which are connected to the first and second blocks 6 and 7 and with a decoder 8 connected to the first input of the element OR 9. The device also includes a remote control 10 connected to the inputs of the switch 11 of the code of the switched on mode of operation connected by the outputs to the program selection block 12, and shaper 13 code previous mode of operation. In this case, the shaper 13 of the code of the previous mode of operation is connected to the outputs of the shaper 11 of the code of the switched on mode of operation and to the inputs of the program selection block 12. In addition, the device contains an additional delimiter 14 connected to the outputs of the first memory block 6 connected to the command generator 1. The driver 1 commands connected to the output of the clock generator 4 and the input line 15 of the delay connected by the output to the switch 3 response signals. At that, the switch 3 response signals are connected to the second input of the element OR 9 connected by the output to the first input of the trigger 16, and the outputs of the program selection block 12 are connected to the inputs of the first and second memory blocks 6 and 7. The outputs of the additional decoder 14 are connected to the shaper 11 of the operation mode code 11, to the shaper 13 of the previous operating mode code and to the second input of the trigger 16. The trigger output 16 is connected to the first memory block 6 and to the second memory block 7 connected by the outputs to the shaper 1 Commands and to the switch 3 response signals. In the device, when the mode of operation is changed from the remote control 10, the signals are turned on to the generator 11 of the switched on mode code, providing the formation of a code for the switched on mode of operation supplied to the driver 13 of the previous operation mode code and to the program selection block 12. The program selection block 12, based on the codes of the switched on and previous modes of operation, generates a signal ensuring the inclusion of the necessary transient operating mode of the tape drive mechanism 2. The proposed device substantially reduces the error of the tape drive control and can be used in magnetic recording equipment. Apparatus of the Invention A device for controlling a tape drive mechanism comprising a command driver whose outputs are connected to a tape drive mechanism connected to the inputs of a response switchboard, a clock generator connected by a output to a binary counter, the outputs of which are connected to the first and second memory blocks and to the decoder connected to the first input of the element OR, the control panel connected to the inputs of the driver of the code of the activated operating mode connected by the outputs to the program selection block mm, trigger and delay line, characterized in that, in order to reduce the control error, the former code of the previous mode of operation is connected to the outputs of the code of the mode of operation being switched on and to the inputs of the program selection block, and an additional decoder connected to the outputs the first memory block connected to the command driver connected to the output of the clock generator and to the input of the delay line connected to the output switch of the response signals connected to the second input of the AND element LI connected by the output to the first trigger input, and the outputs of the program selector block are connected to the inputs of the first and second memory blocks, with the outputs of the additional decoder being connected to the shaper of the code of the switched on mode, to the shaper of the code of the previous operating mode and to the second trigger input, connected to the first memory block and to the second memory block, connected by outputs to the command generator and to the switch of response signals. Sources of information taken into account in the examination 1. UK Patent No. 1505172, cl. G 5R, 03/30/78. 2. USSR author's certificate number 352297, cl. G 11 V 15/02, 07.12.70 (prototype).