SU851470A1 - Magnetic recording apparatus control device - Google Patents

Description

(54) DEVICE FOR CONTROLLING A MAGNETIC APPARATUS

RECORDS

The invention relates to the accumulation of information, namely, devices for controlling a magnetic recording apparatus. A device for controlling a magnetic recording apparatus is known, comprising recording mode, reproduction mode, rewind mode, stop mode and rewind mode buttons whose contacts are connected to triggers ij. The known device has a relatively simple design, however, it does not provide a sufficiently simple process for controlling the apparatus of a magnetic recording. It is also known a device for controlling an apparatus for magnetic recording, comprising pause mode, recording mode, reproduction mode, rewind mode and forward mode, the moving contacts of which are connected to the main inputs of the first, second, third, fourth and fifth triggers, and fixed contacts — to a common bus connected to a stationary contact of a stop mode button; an element for setting the initial state; a control unit for a tape drive mechanism, the output of which is connected to the output other electromagnet control signals, output buses of the switching signal of the magnetic head for recording, the switching signal of the magnetic head for reproducing, the switching signal of the noise limiter, the control signal of the feed unit motor, the control signal of the receiving node motor and the line input control signal, resistor l, diodes and capacitor. The device makes it possible to reduce the relative simplicity of the process of controlling the magnetic recording apparatus r2j. The disadvantages of the known device are the complexity of its design and the considerable error in controlling the magnetic recording apparatus. The purpose of the invention is to simplify the design of the device for controlling the magnetic recording apparatus and reduce the control error. This is achieved due to the fact that the element for prohibiting the inclusion of rewind modes, the element for prohibiting the activation of the pause, recording or playback mode, the unit for setting the initial state are entered into the device for controlling the apparatus of magnetic recording.

made with the first and second outputs and with the first, second, third, fourth and fifth inputs, and the first, second, third, fourth and fifth keys of the indicators, equipped with the inputs and the main and additional control inputs, and the first, second, (third , the fourth and fifth triggers are made with inverse outputs with additional inputs 1i, with inputs of the resolution of the basic basic control and with buses of combined direct output and input of the collector control, while the bus of the combined direct output and input of the collector control of the first the first trigger is connected to the input of the initial state setting element and to the main control input of the first indicator key, the output of which is connected to an electromagnet control unit connected by the input to the inverse output of the third trigger connected to the output line control output bus, the combined direct output bus and the input of the collector control of the second trigger is connected to the output bus of the switching signal of the magnetic head for recording, to the first input of the initial state setting block and to The main control input of the second indicator key, the output of which is connected via the first diode to the output bus of the switching signal of the magnetic head for playback, and with the auxiliary control input of the third indicator key, connected to the combined control direct input bus and output of the third trigger connected to the output bus of the switching signal of the noise limiter and to the second input of the initial state setting block, the first output of which is connected via the first cut a stop with a movable contact of the stop mode button; the enable inputs of the basic basic control of the first, second and third flip-flops are connected to an element to prohibit the activation of the pause, recording or playback mode, connected by an input to an element prohibiting the activation of the rewinding modes connected to the third input and to the second output of the installation unit the initial state, the fourth one, the input of which is connected to the bus of the combined direct output and the input of the collector control of the fourth trigger, connected to the output bus of the signal systematic way motor and the delivery unit to the main input of the fourth switch control indicator, tire reciprocally direct entry and exit of the collector of the fifth control latch is connected to output line-up reel motor control signal to the fifth input setting unit initial state

to the main control input of the fifth indicator key, the auxiliary input of the first trigger is connected via a second diode to the common point of the second resistor and capacitor connected in series, respectively connected to the main input and to the enable input of the main basic control of the first trigger, in-. Versa output and enable input of the basic basic control of the fourth

0 5 20 25 30 35 the trigger is connected respectively to the resolution input of the main basic control and to the inverse output of the fifth trigger, and the fixed contact of the recording mode button is connected to the moving contact of the playback mode button.

The figure shows a device for controlling a magnetic recording apparatus.

The device contains buttons 1-5 pause, recording mode, playback mode, rewind mode and forward mode, the moving contacts of which are connected to the main inputs of the first, second, third, fourth and fifth triggers 6-10, respectively, and the fixed contacts to a common bus 11 connected to the non-booster contact of the stop mode button 12. In this way, the fixed contact of the recording mode button 2 is connected to the movable contact of the playback mode button 3, and the first, second, third, fourth and fifth triggers 6-10 are made with inverse outputs, with additional inputs, with resolution inputs of the basic basic control and with buses combined direct output and input collector control.

The device also contains an electromagnet control unit 13, the output of which is connected to the output bus 14. of the electromagnet control signal, the initial state setting unit 15, made with the first and second outputs and with the first, second, third, fourth and fifth inputs, and the first, second, third, fourth and fifth keys of 16-20 indicators provided with outputs and main and additional control inputs. Moreover, a bus of combined direct output and input of the collector control of the first trigger 6 is connected to the input of the initial state setting element 21 and to the main control input of the first indicator key 16, the output of which is connected to the electromagnet control unit 13. The input of the electromagnet control unit 13. is connected to the inverse output of the third trigger 8 connected to the output bus 22 of the control signal of the linear output.

The combined forward output and collector control input bus of the second trigger 7 is connected to the output bus 23 of the switching signal of the magnetic head for recording, to the first input of the initial state setting unit 15 and to the main control input of the second indicator key 17 whose output is connected via the first diode 24 s the output bus 25 of the switching signal of the magnetic head for playback and with the additional control input of the third key 18 of the indicator. The main control input of the third key 18 of the indicator is connected to the bus of the combined direct output and input of the collector control of the third trigger 8 connected to the output line 26 of the noise limiter switching signal and to the second input of the initial state setting unit 15, the first output of which is connected via the first a resistor 27 with a movable contact of the stop mode button 12.

The enable inputs of the basic basic control of the first, second, and third flip-flops 6-8 are connected to the pause, record or play mode prohibit element 28, which is connected by input to element 29 for the pre-enable rewind mode. The element 29 prohibiting the activation of rewind modes is connected to the third input and to the second output of the initial state setting unit 15, the fourth input of which is connected to the combined direct output and collector control bus of the fourth trigger 9 connected to the output node bus 30 of the input node motor control signal and with the main control input of the fourth key 19 of the indicator. The bus of the combined direct output and input of the collector control of the fifth trigger 10 is connected to the output bus 31 of the motor control signal of the receiving node, to the fifth input of the initial state setting unit 15 and to the main control input of the fifth indicator key 20.

Additional input of the first trigger b Connected through the second diode

32 to a common point:; the second resistor 33 connected in series and the capacitor 34. Moreover, the second resistor

33 and a capacitor 34 are connected respectively to the main input and to the enable input of the basic basic control of the first trigger 6. The inverse output and the enable input of the basic basic control of the fourth trigger 9 are connected respectively to the enable input of the main basic control and to the inverted output of the fifth trigger 10.

The electromagnet control unit 13 consists of a transistor 35 and resistors 36-38, the initial stand installation unit 15 consists of diodes 39-44, a capacitor 45 and a resistor 46, the initial state setting element 21 of a diode 4-7, a capacitor 48 and a chopper 49, the element 28 of prohibiting the inclusion of the pause, record or play mode — from transistor 50, con. sensor 51 and resistors 52-54, and the prohibition element 29 including the winding modes from transistor 55 and resistors 56 and 57. First1, 5, second, third, fourth and fifth triggers 1-5 and first, third, fourth and fifth keys 16 The 18, 19 and 20 indicators are connected directly to the common bus 11 and the power bus 58. The second key 17 of the indicator is connected to the power bus 58 directly, and to the common bus 11 via a resistop S9.

When pressing the 1, 3, 4 or 5 pause mode, play mode, rewind mode or fast forward mode, a connection is made to the common bus 11 of the main input of the first, third, fourth or fifth trigger 6, 8, 9 or 10. Connection to the common bus main input of the second trigger 7 is carried out only when simultaneously pressing the button 2 and 3 of the recording mode and playback mode. When the stop mode button 12 is pressed, the common bus 11 is connected via the initial bus condition unit 15 of the combined direct output and collector control input of the second, third, fourth and fifth triggers 7-10.

The use of the invention makes it possible to greatly simplify the design of the device for controlling the magnetic recording apparatus and to reduce the control error.

Claims (2)

1. Kolischuk V.T. and d1. Design and calculation of tape recorders. Kiev, Technique; 1965, p. 232-237. 2. Japanese Patent No. 40-24107, cl. 102 E 21, 1965 (prototype).