KR0128055B1 - Autometic selecting method and apparatus for tape record player - Google Patents

Abstract

Autimatic music selecting apparatus and method for the tape recorder player, where automatically detects the mute period of the voice signal recorded in the tape for recording, automatically recordes the sequence recorde information, and automatically selects the music according to resposding to the data input.

Description

Automatic selection device and method of tape recorder player

1 is a circuit diagram of an automatic selection apparatus according to the present invention.

2 is a control flowchart of the automatic selection apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

10: audio signal control meter, 20: silent section detector,

24,48: end gate, 25: selection switch unit,

26: sequential record information generator, 36: microcomputer unit,

38: display unit, 42: control switch,

44: servo system, 46: first waveform shaping unit,

50: second waveform shaping portion, 52: M / M,

54: sequential recording information switching unit, 60: sequential recording information detector.

The present invention relates to an automatic selection apparatus of a tape recorder player capable of recording an audio signal, and more particularly, to automatically record sequential recording information by automatically detecting an audio signal and a silent section recorded on a tape during playback, and to input selection data. The present invention relates to an apparatus and a control method for automatic selection in response.

As the audio technology of the VTR is developed, a videoke tape, in which only music tapes, accompaniment and images, are recorded, is becoming popular. However, when the tape is reproduced by a general VTR system, it is very inconvenient to use since the general VTR does not have a selection function such as a compact disc. In other words, if the music he wanted to listen to was recorded in the middle of the tape, there was an inconvenience to find through the operation of the fast playback mode, and there was a problem that caused a lot of loss in time.

Accordingly, an object of the present invention is to provide an apparatus and a method for automatically detecting selections of a tape currently being reproduced, recording selection information, and automatically finding and reproducing a desired position in response to input of selection data.

Another object of the present invention is to provide an apparatus for detecting a voice recorded on a tape and a voice recording section.

It is still another object of the present invention to provide an apparatus for automatically recording between a voice recorded on a tape and a voice recording section to record automatic selection data.

It is another object of the present invention to provide a circuit for detecting magnetic music selection data recorded on a tape.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit diagram of an automatic selection apparatus according to the present invention, in which a voice signal processing system 10 for picking up and outputting a voice signal recorded on a tape and a signal output from the voice signal processing system 10 are preset. A silent section detector 20 for detecting a silent section compared to a signal of a detection level, an AND gate 24 for gating the silent section detection signal enabled by input of a find signal, and a find signal according to a user's selection A select switch section 25 for outputting a Find Signal (F) and an Auto Memory (AM), and a silent section detection signal gated and output from the AND gate 24, and The current status display data is outputted by the sequential recording information generator 26 which generates the sequential recording information according to the counting, and selection of the selection data and the pin signal and the Vis signal by the user control. A microcomputer unit 36 for outputting servo control data and comparing the music selection data with the count data to control the system; a display unit 38 for displaying display data output from the microcomputer unit 36; The control pulse (CTL Pulse) is recorded on the control track of the tape, and the CTL head 40 which picks up and outputs the control pulse recorded on the control track and the servo control data outputted from the microcomputer 36 are used for the service ( Viss) a control pulse and a servo system 44 for outputting a regeneration control pulse by a control pulse output from the CTL head 40 in the regeneration mode, and a vis control pulse output from the servo system 44. The first waveform shaping section 46 and the waveform shaping and the shaping control signal output from the first waveform shaping section 46 are input to the input of the pinned signal and the regeneration mode signal. Gating by Supplies to the CTL head 40 the sequential recording information output from the sequential recording information generator 26 in response to an AND gate 48 and a bis control signal output from the and gate 48, The control switch 42 for switching the regenerated control pulse to the servo system 44 by the blocking of the bis signal, and the regeneration control pulse outputted from the servo system 44 are integrated, and the waveform is shaped. A monostable multivibrator (hereinafter referred to as MM) that is triggered by a second waveform shaping section 50 to output and a signal output from the second waveform shaping section 50 and outputs a counter enable pulse of a predetermined period. 52, and a sequential recording information switching unit 54 for response-switching to the first state of the pulse output from the MM 52 and passing the selection data output from the control switch 42; Sequential record information switching unit 54 It is composed of a sequential recording information detector 60 for counting the selection music data output from the) to output to the microcomputer 36.

In the configuration of FIG. 1, the silent section detector 20 includes a low pass filter 22 for low-pass filtering a signal output from the voice signal processing system 10 and outputting it as a DC signal, and from the low pass filter 22. And a comparator for outputting a silent section detection signal by comparing the output signal with a preset reference voltage Vref1 corresponding to a predetermined voice signal level.

Then, the sequential recording information generator 26 converts the counter 28 which up-counts and outputs the silent section detection signal gated from the AND gate 24, and converts the output data of the counter 28 into an analog signal. An output digital analog converter (hereinafter referred to as a D / A section) 30 and a voltage controlled oscillator (hereinafter referred to as VCO) for generating a clock corresponding to the signal level output from the D / A section 30 ( 32) and a comparator CP1 for outputting the output of the VCO 32 to a waveform at a predetermined level in comparison with a signal of a predetermined level.

The first waveform shaping section 46 presets the resistor R3 and the capacitor C3 and the low-pass filtered bis signal for low-liquid filtering the bis control signal output from the output terminal of the servo system 44. And a comparator (CP3) for outputting the waveform shaping in comparison with the reference voltage (Vref3) of the second, the second waveform shaping section (50) is a reproduction control pulse signal output from the PB CTL output terminal of the servo system (44) A resistor R4 and a capacitor C4 for regional filtering and a comparator CP4 for outputting a waveform shaping result by comparing the regionally filtered control pulse signal with a predetermined reference voltage Vref4.

First, an example of the operation of FIG. 1 will be described.

If a voice signal is now output from the voice processing system 10, it is integrated by a integrator 22 composed of a resistor R1 and a capacitor C1 and is DC-driven. The signal DC-directed by the integrator 22 is input to the inverting terminal (-) of the comparator CP1 for inputting the reference voltage Vref1 to the non-inverting terminal (+). At this time, the comparator CP1 compares the voltage input to the two terminals and outputs a logic high when the preset reference voltage Vref1 is large.

Since a typical music tape or video tape has no or weak audio signal between the music and the music, the output of the comparator CP1 becomes high at the designation of switching to another song. As such, when the user selects the selection switch unit 25 as the automatic memory AM while the comparator CP1 outputs a high signal, the output of the AND gate 24 inputting the output of the comparator CP1 is Goes high. The counter 28 counts and outputs the output of the AND gate 24. Therefore, the sequential recording information generator 26 composed of the counter 28, the D / A unit 30, the VCO 32, and the comparator CP2 operated by the output of the AND gate 24 is operated. By the control switch 42, the code corresponding to the count value of the counter 28 is supplied to the CTL head 40 through the control switch 42 and recorded in the control track of the tape.

When the consumer selects the selection switch unit 25 to find (F) to find a desired part and inputs the automatic selection data r, the microcomputer unit 36 displays the value of the input automatic selection data r. 38) and display at the same time, the system is controlled by fast forward to advance the tape at high speed. At this time, the microcomputer 36 detects when the sequential recording information picked up and output from the control track and the automatic selection data, which is a key value input by the user, at the high-speed shearing, detects the same, and performs normal playback to find exactly the desired part. do.

2 is a control flowchart of the automatic selection apparatus according to the present invention, which is a control flowchart of the microcomputer 36 shown in FIG. 1 and has the following procedure.

A data input process for searching whether the automatic selection data is input when the automatic selection music search mode is detected, and when the automatic selection data is input in the automatic selection data input process, the display unit displays the currently selected automatic selection data. A sequential record information reading process for reading the sequential recording information recorded on the control track of the tape by performing a fast forward and displaying the information through the display; and the information read in the sequential recording information reading process and the input automatic A data comparison process for determining whether the value is large or small compared to the selection music data, and whether the end point of the tape is detected when it is determined that the input automatic selection data is larger than the information read in the sequential recording information reading process in the data comparing process. Search and determine the end point of the tape to perform the rewind operation. A rewind process to be performed and a rewind process to determine whether the input automatic selection data and the information read in the sequential recording information reading process are different during the data comparison process, and to start the operation in the regeneration mode if it is determined to be the same. Is done.

Hereinafter, the operation of the present invention will be described in detail with reference to the accompanying drawings.

When a voice signal is output from the voice processing system 10, it is integrated by a integrator 22 composed of a resistor R1 and a capacitor C1 and is DC-driven. The signal DC-directed by the integrator 22 is input to the inverting terminal (-) of the comparator CP1 for inputting the reference voltage Vref1 to the non-inverting terminal (+). At this time, the comparator CP1 compares the voltage input to the two terminals and outputs a logic high when the preset reference voltage Verf1 is large.

Since a general music tape or video tape has no or weak audio signal between music and music, the output of the comparator CP1 becomes high at the point of switching to another song. As described above, when the user selects the selection switch unit 25 as the automatic memory AM while the comparator CP1 outputs a high signal, the automatic memory mode automatically records the automatic selection data. It is as follows.

Auto Memdty

When the user selects the selector switch section 25 as the mode of the auto memory AM when the user uses music or video tape for the first time, it is input to the end gate 24.

Therefore, in the automatic memory (AM) mode as described above, when a silent section of a song and a song (music and music) is detected, the output of the AND gate 24 becomes high as described above, which is input to the counter 28. At the same time, they are collected and input to the microcomputer 36 through the gate 34. At this time, the counter 28 counts and outputs the output of the AND gate 24. Therefore, the count value of the count 28 is incremented each time the AND gate 24 detects a silent section and outputs a logic high signal, and the value of the counter 28 is analogized by the D / A unit 30. It is converted into voltage and supplied to the VCO 32.

The VCO 32 oscillates and outputs a frequency corresponding to the voltage output from the D / A unit 30. That is, the VCO 32 oscillates a frequency corresponding to the counter value of the counter 28 and outputs it to the comparator CP2. At this time, the comparator CP2 shapes the oscillated frequency into a square wave and outputs the result to the control switch 42. [0019] The output of the comparator CP2 is a square wave having a frequency proportional to the count value of the counter 28. do.

The microcomputer 36 which inputs the logic `` high '' signal output from the oragate 34 in the above-described operation state receives the same servo control data SD as when the Vis signal (Viss mark) is input. Output to the western system 44 is controlled. At this time, the servo system 44 outputs the non-control signal SS of a square wave having a duty ratio of 40:60 for one cycle. The non-control signal SS output from the servo system 44 is integrated by a resistor R2 and a capacitor C2 to be DC-driven, which is a square wave by a comparator CP3 inputting a reference voltage Vref3. Is inputted to the AND gate 48. The waveform shaping output signal from the comparator CP3 is slightly delayed.

At this time, the AND gate 48 inputs a logic '' high auto memory signal AM and a logic high reproduction signal PB output from the selector switch 25. Therefore, the AND gate 48 gates the output of the comparator CP3 as it is and outputs it as a control signal of the control switch 42. The control switch 42 selects and switches the sequential write information output from the comparator CP2 when the signal output from the output gate to the AND gate 48 is logic high, and supplies it to the CTL head 40.

Therefore, a square wave signal having a period corresponding to the counting of the counter 28 is recorded in the control track of the tape. The control switch 42 connects the output of the comparator CP3 to the CTL head 40 when the output of the AND gate 48 is high, and connects the output of the CTL head 40 to the servo system when the output of the AND gate 48 is high. 44).

When the next silent section of the tape is detected in the above operating state, that is, when the next music and the music are detected, the operation is similar to that of the arm, and only the frequency of the square wave is increased by 1 because the counter value is increased. The frequency is increased and recorded by the increment. That is, each time a silent section is detected, the value of the counter 28 increases, and thus the frequency recorded therein also increases.

Therefore, it can be seen that the value of auto-selection data is increased and recorded every detection of the silent section.

As described above, the silent section of the tape to be reproduced by the operation is automatically detected, the automatic selection data is automatically recorded, and the desired position, for example, the operation of selecting the section where the music of the section to be listened to is found as follows. Executed by the function.

▶ Find function.

If the user now selects the selection switch section 25 in the pinned position, it is input to the microcomputer section 36. In this case, the microcomputer 36 determines that the find signal is input in step 202 and searches whether the automatic selection data r is input in step 204. In this case, when the user inputs the automatic selection data r, the microcomputer 36 determines that the automatic selection data r has been input in step 204. If the automatic selection data r is not input in step 204, the microcomputer 36 performs the function of the input key and repeats step 204.

The microcomputer 36 determines that the automatic selection data r has been input in step 2045, outputs the value input in step 208 to the display 38, and performs a fast forward function in step 210. The count value m is compared with the value of the input automatic selection data r to determine the magnitude of the magnitude.

In this case, the fast forward function is performed by the microcomputer 36 outputting the servo control data SD to the servo system 44. The servo system 44 for inputting the servo control data SD inputs the CTL pulses output from the CTL head 40, and generates PB CTL pulses using the input CTL pulses (generated PB CTL pulses). Used for counter and system control to be described later). At this time, the PB CTL pulses output from the wing servo system 44 are subjected to a band pass filtering by the resistor R4 and the capacitor C4, and are DC-driven, which is input to the non-inverting terminal (+) of the comparator CP4.

The comparator CP4 compares the signal input to the non-inverting terminal (+) with the reference voltage verf4 set at the inverting terminal (-) and waveform-forms the square wave signal to output to the MM 52.

At this time, the MM 52 outputs a signal having logic " high for a predetermined period output from the comparator CP4. The signal output from the MM 52 is canceled by the counter 64 and inverted by the inverter 58 and input to the base of the transistor 56. Therefore, when a logic '' high signal is output from the MM 52, the transistor 56 is turned off, and the counter 64 is reset and disassembled so that the signal output from the CTL head 40 is received. It is amplified by the amplifier 62 and supplied to the counter 64. A signal output from the amplifier 62, that is, a signal of a square wave which is automatic selection information (sequential recording information) recorded in a control track, is supplied to the counter 64, and the counter 64 is input of a square wave signal. Counting to output the count value (m) of the sequential recording information of the current position to the microcomputer 36.

In this case, the microcomputer 36 compares the automatic selection information r input by the user in step 212 with the counting value m, which is the counted current sequential recording information, to determine the magnitude. If it is determined in step 212 that the counting value m is greater than the value of the input automatic selection (r), the microcomputer 36 determines whether the end sensor (not shown) detects the end point in step 214. To judge. If the AND sensor does not operate in step 214, the microcomputer unit 36 repeats step 212. If the AND sensor operates, the microcomputer unit 36 displays the excess state of the automatic selection information r on the display unit 38 in step 216. At the same time, it automatically rewinds.

If it is determined in step 212 that the count value m is less than the value of the input automatic selection information r, the microcomputer unit 36 selects the counting value m in step 218. Search for equality with the value of information r.

If the two input values are not equal to each other in step 218, the microcomputer 36 performs a fast forward operation in step 220. If the two values are the same, the microcomputer 36 finds a desired part. Perform the mode.

When the output of the MM 52 becomes logic '' low during the above operation, the counter 64 is reset, and the output of the inverter 58 that inverts the output of the MM 52 becomes high. Transistor 56 is turned on. Therefore, when the output of the MM 52 goes low, the sequential write information output from the CTL head 40 is muted by the on switching of the transistor 56.

Therefore, only the portion in which the logic of the reproduced CTL signal is high, that is, the portion into which the square wave is inserted, is input to the counter 62 through the amplifier 62 to count the frequency of the square wave, and the value m is converted into the microcomputer unit ( 36).

In the above-described configuration of FIG. 2, the counter 28 is reset at the time of extrusion, when the other tape is inserted (extracting the first tape), the counter 28 is reset to operate from the initial value. Normal in the selector switch section 25 is used when the selection system is not operated, as in the case of using a general VTR tape or the like.

As described above, according to the present invention, when playing a tape on which music is recorded, the automatic section data is automatically recorded by detecting a silent section, and the user can conveniently find and play a desired position by the user's selection to facilitate user's convenience. There is an advantage in that it can improve the functionality of the system.

Claims (6)

A voice signal processing system 10 for picking up and outputting audio signals recorded on a tape, a CTL head 40 for recording and outputting control pulses recorded on a control track of the tape, and picking up and outputting control pulses recorded on the control tracks; A tape recorder player having a servo system 44 which outputs a non-control pulse by inputting the servo control data and outputs a reproduction control pulse by a control pulse output from the CTL head 40 in the reproduction mode. In the automatic selection apparatus, silent section detecting means for detecting a silent section by operating an input of an automatic memory signal and comparing the signal output from the voice signal processing system 10 with a signal having a preset detection level, and the silent section Sequential recording information generating means for inputting / counting a silent section detecting signal output from the interval detecting means and generating sequential recording information according to the counting, and a user Control means for outputting the servo control data by inputting the selection music data and the find signal by a control word, and comparing the selection data with the count data to control the system, and the control signal for the find signal F according to a user's selection. And a mode selection level for outputting an automatic memory signal AM to the silent section detecting section detecting means and a vis control pulse output from the servo system 44 and waveform shaping to integrate the vis control signal. A first waveform shaping means for outputting, a gating allowance for gating a vis control signal output from the first waveform shaping means by input of the pin signal and a regeneration mode signal, and a vis control signal output from the gating means. Responsive to the CTL head 40, the sequential recording information output from the sequential recording information generating means is supplied to the CTL head 40, and Switching means for switching the regenerated control pulses to the servo system 44 by blocking the call, integrating the regeneration control pulses output from the servo system 44, and performing waveform shaping and outputting the second waveform shaping; Means, a MM 52 triggered by a signal output from the second waveform shaping means, and outputting a counter enable pulse of a predetermined period, and a first state of a pulse output from the MM 52. Sequential recording information switching means for response-switching and passing the selection of music output from the switching means, and sequential recording information detection means for counting the selection music data output from the sequential recording information switching means and outputting it to the control means. Automatic selection device of the tape recorder player characterized in that. 2. The liquid crystal section detecting apparatus according to claim 1, wherein the silent section detecting means comprises: a low liquid filter 22 for low liquid filtering the signal output from the voice signal processing system 10 and outputting the DC signal; A comparator CPL for outputting a silent section detection signal by comparing the output signal with a predetermined reference voltage Vref1 corresponding to a predetermined voice signal level, and enabling the input of a pinned signal to generate the silent section detection signal. And an end gate (24) gating to sequential recording information generating means. 3. The apparatus of claim 2, wherein the sequential recording information generating means comprises: a counter 28 for up counting and outputting a silent section detection signal gated from the end gate 24, and output data of the counter 28; A D / A unit 30 for converting and outputting an analog signal, a VCO 32 generating a clock corresponding to the signal level output from the D / A unit 30, and an output of the VCO 32; And a comparator (CP1) for outputting waveform shaping by comparing the signal with a signal of a predetermined level. 3. The first waveform shaping means according to claim 2, wherein the first waveform shaping means comprises: a resistor (R3), a capacitor (C3), and the low-pass filtered vis for low-pass filtering the non-control signal output from the output terminal of the servo system (44). And a comparator (CP3) configured to compare the signal with a predetermined predetermined voltage (Vref3) and output waveform shaping. 5. The second waveform shaping means according to claim 4, wherein the second waveform shaping means comprises: a resistor (R4), a capacitor (C4), and the region for rejecting filtering the regeneration control pulse signal output from the PB CTL output terminal of the servo system (44). And a comparator (CP4) configured to compare the filtered control pulse signal with a predetermined reference voltage (Vref4) and output waveform shaping. A control method of an automatic selection apparatus of a tape recorder player, comprising: an automatic selection data input process of searching whether the automatic selection music mode is input and searching whether the automatic selection data is input in the find mode; A sequential recording information reading process of reading the sequential recording information recorded on the control track of the tape by displaying the currently selected automatic selection data through the display unit when determining that the data is input; A data comparison process of comparing the information read in the sequential recording information reading process with the input automatic selection data and determining the magnitude of the value; and the input of the automatic selection data in the data comparing process is reading the sequential recording information reading process. Detects the end point of the tape when it determines that it is larger than the information read Rewind process for rewinding operation when it is determined that the end point of the tape, and rewinding when it is determined that the information selected in the automatic selection data and the sequential record information reading process are different from the data comparison process. A playback process for starting an operation in a playback mode when determined to be equal.