JPH0333993Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a data reproducing device such as a tape recorder, and in particular, the present invention relates to a data reproducing device such as a tape recorder. The present invention relates to a data reproducing device having a reproducing function.

[Technical background of the invention]

Recently, various types of tape recorders have been commercialized that have an automatic song selection function that automatically locates the beginning of a song. There is one that plays the files sequentially. This function eliminates the hassle of having to alternately press the play button and fast forward button, for example, when you want to know which songs are on a recorded tape, or when you want to find a desired song while listening to the intros of the songs one after another. It is very effective because it does not require any operation.

[Purpose of invention]

This invention was created to add game-like elements to data playback devices such as tape recorders.
By adding a simple circuit to the conventional leading part sequential reproduction function described above, a data reproducing device having a function of randomly selecting recorded data such as a song and sequentially reproducing only the leading part of the data is provided. The purpose is to

[Example of idea]

An embodiment to which the present invention is applied will be described in detail below. FIG. 1 shows a block circuit diagram of a playback-only tape player, and reference numeral 1 in the figure is an input section through which the user instructs tape running. In addition to a play button 2, a fast forward button 3, a rewind button 4, and a stop button 5, this input section 1 also has a search button for performing a search function that sequentially plays back only the beginning of each song in the order in which it was recorded on the tape. 6 (hereinafter referred to as the S button) a random search button 7 (hereinafter referred to as the RS button) for performing a random search function that randomly selects songs and sequentially plays back only the beginning of the songs, not according to the recording order of the tape; and the above S
Numeric keys 8 of "0" to "9" are provided for setting the playback time of the beginning of the song played by operating the button 6 or the RS button 7 in units of seconds.

The operation signal from the input section 1 is sent to the central processing unit 9.
(hereinafter referred to as the CPU). This CPU9
The unit inputs the operation signal from the input unit 1 and various signals described later to perform control operations related to tape running. In addition to sending various signals to each circuit as described later, the mechanism drive unit 10 playback signal (hereinafter referred to as PLAY signal), fast-forward signal (hereinafter referred to as PLAY signal),
FF signal), rewind signal (hereinafter referred to as REW signal), fast forward playback signal (hereinafter referred to as CUE signal), and stop signal (hereinafter referred to as STOP signal)
are sent respectively. The mechanism driving section 10 provides a drive signal to the tape running mechanism 11 in response to each of these signals to rotationally drive a reel motor and a capstan motor (not shown) configured in the tape running mechanism 11, and also causes the tape to run. The playback head 13 is moved toward and away from the tape surface of the music tape 12 loaded in the mechanism 11. Further, a sensor 14 is provided within the tape traveling mechanism 11 to detect the beginning and end of the tape. This sensor 14 is connected to the tape running mechanism 1 by a drive signal from the mechanism drive section 10.
1, when the tape is running, it is detected that the rotation of the reel motor is stopped at the beginning and end of the tape, and the beginning and end detection signal j is sent to the CPU 9.

Further, reference numeral 15 in the figure is a reproduction equalizer that performs equalizer correction on the reproduction signal from the reproduction head 13;
16 is a preamplifier for current amplifying the output of the equalizer 15, 17 is a power amplifier for power amplifying the output of the preamplifier 16, and 18 is a speaker for electroacoustic conversion of the output of the power amplifier 17. The output of the reproduction equalizer 15 is further applied to a song interval detection circuit 19. This inter-song detection circuit 19 detects while the playback head 13 is reproducing the approximately 5 seconds of silence between the music tapes 12 on which a plurality of songs have been recorded in advance. A circuit that outputs a song interval detection signal a of "1" at a binary logic level,
This inter-song detection signal a is sent to the CPU 9 and the inter-song counter 2.
0 and the set side input terminal of flip-flop 21. Also, numeral 22 is a random number generation circuit,
Receiving the random number generation signal b output from the CPU 9,
This circuit randomly outputs numerical codes from "1" to "9" to the buffer 23. The contents of the inter-song counter 20 and the buffer 23 are determined to match by a matching circuit 24, and when they match, a signal e is sent.
is output to one input terminal of the AND gate 25. The other input terminal of the AND gate 25 receives a signal c which is output as a binary logic level "1" from the time the S button 6 is operated until the series of tape runs related to this button is completed. is applied via the inverter 26, and this signal c is further applied to the AND gate 27 together with the set side output signal d of the flip-flop 21. The output signal f of the AND gate 25 is given to the CPU 9 and is passed through the OR gate 28 to the AND gate 29.
is applied to one input terminal of The output signal g of the AND gate 27 is also applied to one input terminal of the AND gate 29 via the OR gate 28. A one second signal is applied. Thus, while the signal f or g is being output, the AND gate 29 is opened and the one second signal is added to the time counter 30. On the other hand, the data input from the CPU 9 using the numeric keypad 8 is sent to S
Bus line i when button 6 or RS button 7 is operated
is applied to the buffer 31 via the buffer 31. Note that when the S button 6 or the RS button 7 is operated without operating the numeric key 8, the CPU 9
Data indicating 20 seconds is provided to the buffer 31 via the buffer 31. The contents of the time counter 30 and buffer 31 are determined to match by a matching circuit 32, and when they match, a signal h is sent to the CPU 9.
Further, the CPU 9 outputs a reset signal k when the S button 6 or the RS button 7 is operated, and this reset signal k is applied to the inter-track counter 20, flip-flop 21, and time counter 30, respectively, to reset them. .

Next, the operation of this embodiment having the above configuration will be explained. First, when the music tape 12 is to be played back, the playback button 2 on the input section 1 is operated. This results in
The CPU 9 sends a PLAY signal to the mechanism driving section 10, and the music tape 12 is run at a constant speed in the tape running mechanism 11 with the playback head 13 in contact with the tape surface, and the music is played from the speaker 18. Furthermore, when the fast forward button 3 or rewind button 4 is operated on the input section 1, the CPU 9 sends an FF signal or REW signal to the mechanism drive section 10, and the music tape 12 is run at high speed and fast forwarded or rewinded. will be carried out. When the stop button 5 is operated, the CPU 9 stops sending out each of the PLAY, FF, or REW signals and sends out a STOP signal, and the music tape 12 is stopped running. Note that when the tape end is detected by the sensor 14 while the music tape 12 is running, the CPU 9 receives the detection signal j and stops the tape running in the same way as when the stop button 5 is operated. Perform the action to do so.

In addition, when operating the S button 6 or RS button 7 to sequentially play back only the beginning of each song recorded on the music tape 12, the CPU 9 responds to the operation of the S button 6 and RS button 7. The operations shown in the flowchart of FIG. 2 are executed.

First, when performing a search function that sequentially plays back only the beginning of each song in the order recorded on the music tape 12, the music tape 12 is loaded into the tape transport mechanism 11, and the music tape 12 is loaded into the input section 1. After rewinding the tape 12 by operating the rewind button 4, the S button 6 is operated. This method can be used to quickly learn the names of each song recorded on music tape 12 and write them on the label.
This is effective when searching for a desired song while actually listening to the beginning of each song.In the tape player of this embodiment, before operating the S button 6, use the numeric keypad 8 to select the playback time of the beginning of each song in seconds. The time can be set, and the user can set the time according to the purpose of use. Incidentally, if the S button 6 is operated without operating the numeric keypad 8, the start portion reproduction time is fixedly set to 20 seconds. When the CPU 9 inputs the operation signal of the S button 6, it outputs a reset signal k (see Fig. 2).
1), inter-song counter 20, flip-flop 21
After resetting the time counter 30, the above-described operation for setting the top portion reproduction time is executed. In other words, if the numeric keypad 8 is operated before the S button 6 is operated, the CPU 9 will process the input data.
The input data is stored in a storage section (not shown) in the CPU 9, and is sent to the buffer 31 and stored therein when the S button 6 is subsequently operated (S2 and S3 in FIG. 2).
In addition, when there is no time input using the numeric keypad 8, the CPU 9 inputs the 20
Sends second data to buffer 31 (Fig. 2 S
2, S4). The contents of the storage section in the CPU 9 that stores the input data described above are cleared when the tape stops running or when the play button 2, fast forward button 3, or rewind button 4 is operated. Next, CPU9 sends signal c
is output (S5, S6 in FIG. 2), and the AND gate 27 related to the search function is made openable, and the AND gate 25 related to the random search function is closed by the output of the inverter 26. In this state, the CPU 9 sends CPE to the mechanism drive unit 10.
A signal is sent out (S7 in FIG. 2). As a result, the tape running mechanism 11 receives a drive signal from the mechanism driving section 10, and fast-forwards the music tape 12 while keeping the playback head 13 in contact with the tape surface. The reproduced signal obtained by the reproduction head 13 is sent to the equalizer 15.
The inter-song detection circuit 19 outputs an inter-song detection signal a of binary logic level "1" at the silent portion between songs. The CUE signal continues to be output until signal a is obtained, but in this case, since fast-forward playback is being performed from the beginning of the tape, immediately after the CUE signal is output, the silence at the beginning of the tape is detected by the inter-track detection circuit 19. It is detected and signal a is output.
This signal a is given to the CPU 9, as well as to the flip-flop 21 as a set signal, and also to the inter-song counter 20 as a counting signal; however, when the S button 6 is operated, this inter-song counter 20
Since the AND gate 25 configured on the output side of is closed, it is not involved in the current search function operation. Then, signal a is output at the beginning of the tape, and when the CPU 9 detects this (S8 in Figure 2),
Next, the CPU 9 outputs the PLAY signal (Fig. 2 S
9). As a result, the tape running mechanism 11 switches the music tape 12 from the fast forward playback state to the constant speed playback state, the playback head 13 obtains a constant speed playback signal, and the speaker 18 outputs the first track. The sound will be emitted from the beginning. At this time, the flip-flop 21 is set when the above-mentioned inter-track detection signal a is output, and the AND gate 27 is opened by the set side output signal d, and the output signal g from the AND gate 27 is passed through the OR gate 28 to the AND gate. It is output on 29. Since a 1 second signal is given to the other input terminal of this AND gate 29, this 1 second signal is given to the time counter 30 as a counting signal from the time when the above signal g is output, and from then on, the time counter 30 starts counting seconds. Starts the unit's time measurement operation. The timing contents of the time counter 30 are determined to match the data held in the buffer 31 by a matching circuit 32, and when the two match, the matching circuit 32 outputs a matching signal h.
Sent to CPU9. In other words, the time point at which this coincidence signal h is output is from when the inter-song detecting circuit 19 detects a silent part between songs and starts playing the song from the beginning. This is when the time of 20 seconds is reached. Therefore, the output of this signal h is
When detected by the CPU 9 (S10 in FIG. 2), the CPU 9 outputs the reset signal k again (S12 in FIG. 2).
After resetting the flip-flop 21 and time counter 30, the CUE signal is output (see S in Fig. 2).
7). After this, the above-mentioned series of operations, i.e., fast-forwarding to the beginning of the next song, then playing only the beginning of that song at a constant speed for a set time, as a search function, is repeated. It is.

After continuing the series of operations as the search function described above and playing back the beginning of the last recorded song on the music tape 12, the CUE signal is output again (S7 in Figure 2), and the tape 12 is fast-forwarded. The tape 12 is in the playback state, but the tape 12 soon reaches the end because of the fast-forward playback of the last song. In this case, the signal a is output at the silent portion immediately before the end of the tape (S8 in FIG. 2), and the tape 12 is once put into the playback state (S9 in FIG. 2), but the detection signal j is output from the sensor 14 at the end of the tape. is output to the CPU 9 (S10, S11 in Figure 2), so the CPU 9
STOP signal is sent (S13 in Figure 2) Tape 12
After stopping the running of the motor, the signal c is set to a binary logic level of "0" to complete the series of control operations. Note that if the playback button 2, fast forward button 3, rewind button 4, and stop button 5 are operated while the search function is still operating, the CPU 9 will stop the search function and press each button. Move to the action according to the operation. Therefore, if the playback button 2 is operated while the search function is playing back the beginning of a desired song on the music tape 12, the desired song will be played not only from the beginning but to the end. .

Next, when performing a random search function in which a song is selected at random and the beginning of the song is sequentially played back, rather than in the order of the songs recorded on the music tape 12, the tape transport mechanism 11 is After loading the music tape 12, the RS button 7 of the input section 1 is operated. Note that when performing this random search function, there is no particular need for a tape rewind operation in advance. This random search function allows you to play a so-called song name guessing game where you randomly select a song recorded on the music tape 12 and guess the name of the song by listening to the playback of the beginning of the song. Similarly, it is possible to arbitrarily set the playback time of the beginning part of the song in seconds using the numeric keypad 8. When the CPU 9 inputs the operation signal of the RS button 7, the CPU 9 receives the S button in FIG.
1 to S4, the inter-song counter 20, flip-flop 21, and time counter 30 are reset, and if the time is set using the numeric keypad 8 before the RS button 7 is operated, the time is reset. Set time data to buffer 31,
Further, when the numeric keypad 8 is not operated, 20 seconds of data is sent to the buffer 31 and stored. In this state, the CPU 9 outputs a random number generation signal b to the random number generation circuit 22 (S5, S15 in FIG. 2), and as a result, the random number generation circuit 22 outputs "1" to "9".
Any one of the numerical codes up to this point is sent to the buffer 23 as a random number and stored therein. Note that when the RS button 7 is operated, the signal c is not output, and the AND gate 27 related to the search function is closed.
The AND gate 25 related to the random function is in an openable state. Next, the CPU 9 outputs a CUE signal (S16 in FIG. 2), and the tape 12 is set to a fast forward playback state. At this time, the playback head 13
The reproduced signal obtained in is given to the song interval detection circuit 19 via the equalizer 15, and this song interval detection circuit 1
From 9 onwards, the inter-music detection signal a, which has a binary logic level of "1", starts to be output in the silent portion between the songs.
This signal a is given to the inter-song counter 20 as a count signal, and the inter-song counter 20 is counted up from "0" in the reset state. On the other hand, the matching circuit 24 judges whether the random number held in the buffer 23 matches the counted value of the inter-song counter 20, and outputs a matching signal e when the two match. In other words, the time when this coincidence signal e is output is when the same number of silent parts as the random number have been detected between songs after the tape 12 is played back in fast forward, and the next recording after this detected silent part is If a song is played back, this song will be randomly selected from among the multiple songs. Therefore, the coincidence signal e is generated by the AND gate 2
5 to the CPU 9 as its output signal f, and is also supplied via an OR gate 28 to an AND gate 29 to which the one second signal is applied to the other end. Note that the CPU 9 continues to output the CUE signal until the signal f is detected, and as a result, the tape 12 is played in fast forward. However, while this state continues, the tape 12 may be wound to the end. be. This is a case where a large random number is generated depending on the number of remaining songs recorded on the tape 12. In this case, when the end of the tape is detected by the sensor 14 and the signal j is input to the CPU 9, the CPU 9 starts REW. Output the signal (Fig. 2 S1
8, S19), the tape 12 is rewound once. and,
When the tape 12 is completely rewound, that is, when the sensor 14 detects the beginning of the tape and outputs the detection signal j, the CPU 9 detects this (S2 in Fig. 2).
0), the CUE signal is output again (S16 in FIG. 2).
As a result, the signal a starts to be outputted to the inter-song counter 20 again, and the count is incremented from the previous count value. When the above operation is executed and it is determined that the contents of the inter-song counter 20 and the buffer 23 match, the signal f output at that time is
CPU9 detects (S17 in Figure 2), then CPU9
A PLAY signal is output (S21 in FIG. 2). As a result, the tape running mechanism 11 switches the tape 12 from the fast forward playback state to the constant speed playback state, and a playback signal is obtained from the playback head 13 and the speaker 18
A randomly selected song is played from the beginning. While this song is playing, the inter-song counter 2
There is no signal a input to 0, so the matching circuit 24
The coincidence signal e continues to be output from. Therefore, the AND gate 25 outputs a signal f, and the AND gate 29 to which this signal f is applied via the OR gate 28 to one end outputs a one-second signal. This one-second signal is given to the time counter 30 as a count signal, and the time counter 30 starts timing operation in seconds from the time the signal f is output. After this, press the S button 6 mentioned above.
The CPU 9 performs the same operations as those shown in S10 and S12 in FIG. 2 during operation, and the buffer 31
The set time data or 20 second data held in the circuit 3 matches the time measurement contents of the time counter 30.
When a match is determined in step 2, the CPU 9 detects the match signal h (S22 in FIG. 2), and further outputs a reset signal k (S23 in FIG. 2) to reset the inter-song counter 20 and time counter 30. . Next, the CPU 9 outputs the random number generation signal b again (S15 in FIG. 2), further outputs the CUE signal (S16 in FIG. 2), and switches from the playback state to the fast-forward playback state.
The above-mentioned series of operations is repeated, in which a song is randomly selected again and the first part of the song is played back.

Note that if any other button operation is performed on the input section 1 while performing this random search function, the CPU 9 will stop the operation of the random search function at that point and perform the operation according to each button operation. Move to. Therefore, in order to cancel the random search function, it is sufficient to operate the stop button 5 on the input section 1.

In the above embodiment, the silent portion between songs is detected to cue the beginning of the song, but an address code indicating the recording order of the songs may be recorded between the songs, and this can be detected to cue the beginning of the song. is also possible. Furthermore, although the above embodiments take as an example the playback of analog-recorded tapes, the present invention can also be implemented on digitally recorded tapes. Furthermore, the method of randomly selecting songs described above is not limited to this embodiment.

[Effect of idea]

As explained above, the present invention randomly selects one piece of data from among multiple pieces of data recorded on a recording medium such as a magnetic tape, and sequentially inputs only the first part of that data for a set time using an external input operation. For example, if you use a music tape with multiple songs recorded on it, you can play a song name guessing game, and you can also set the playback time of the beginning part arbitrarily by external input operation, which increases the difficulty of the game. can be changed, adding game-like elements that have never existed before, increasing its commercial value.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of a tape player to which the present invention is applied, and FIG. 2 is a flowchart for explaining the CPU operations of the search function and random search function. 6... Search button (S button), 7... Random search button (RS button), 8... Numeric keypad, 9... Central processing unit (CPU), 12... Music tape,
14...Sensor for detecting end/start end, 19...Song interval detection circuit, 20...Song interval counter, 22...Random number generation circuit, 24, 32...Coincidence circuit, 30...Time counter.

Claims (1)

[Scope of Claim for Utility Model Registration] Random number generation means for generating random numbers; detection means for detecting the recording order of each piece of data on a recording medium in which a plurality of data are recorded; a selection means for selecting data of a recording order corresponding to the random number value generated by the generation means from the recording medium; a reproduction means for reproducing the data selected by the selection means; and a reproduction time of the data by the reproduction means. a clocking means for measuring time; a determining means for determining whether the time inputted in advance by an external input operation matches the time measured by the clocking means; and when the determining means determines a match, the random number generating means generates a new 1. A data reproducing device comprising control means for generating a random number and controlling the selection means to perform a selection operation.