JPH0330175A - Skipped music selection system for digital audio tape recorder - Google Patents

Abstract

PURPOSE:To seek quickly an object music by designating a music location being a skipped destination depending number of times of depression of a skip music selection scan button, applying a fast speed search and reproducing sequentially the music head of musics located within a prescribed range for a prescribed time. CONSTITUTION:The music location being skipped destination is designated by number of times of depression of a skip music selection scan button 8, fast speed search is applied and introduction scanning is applied, in which the head of musics within a prescribed location decided in advance including a designated music is reproduced sequentially for each prescribed time. When a music selection command 9 is given or the introduction scanning of musics within the prescribed range is finished, the operating mode is switched to the normal reproducing state. Thus, when an object music is searched and the music selection command 9 is given, the object music is simply selected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an interlaced song selection method for high-speed searching for a desired song in a digital audio tape recorder.

[Conventional technology]

Traditionally, digital audio tape recorders (DA
When selecting a desired song in T), the desired song is searched for by manually inputting the program number (P No.) and number of skipped songs using a numeric keypad.

[Problems to be Solved by the Invention] However, in the case of the conventional method of specifying the program number and the number of skip songs using the numeric keypad, TJ'f! It is necessary to input the information accurately while checking the information, making the operation complicated. In particular, in the case of an in-vehicle DAT (hereinafter referred to as "Rikiichi DAT"), it is difficult to operate it while driving for safety reasons.

Furthermore, since DAT tapes are recorded for a long time (2 hours), the number of songs recorded is far greater than that of conventional cassette tapes, and the program numbers and song positions of all songs on the tape can be accurately recorded. It's difficult to remember. Therefore, if the user's memory of the program number, song position order, etc. is vague, there is a problem in that the user must operate the numeric keypad many times to redo the song selection operation until the desired song is found.

The present invention has been made in view of the above circumstances, and is a digital audio tape recorder that can search for a desired song as quickly as possible with a minimum of operations even if the memory of the program number, song location, etc. is vague. The purpose is to provide an interleaved song selection method.

[Means to solve the problem]

In order to achieve the above object, the skip song selection method of the present invention provides a scan button for skip song selection in which the number of skip songs per press is predetermined, and the skip destination song position is determined by the number of times the scan button is pressed. An intro scan that performs a high-speed search to a song position a predetermined number of songs before the specified song, and then sequentially plays the beginning of each song for a certain amount of time for a predetermined range of songs including the specified song. The operating mode is switched to the normal playback state when a music selection command is given during the intro scan or when the intro scan of the certain range of music is completed.

[For production]

When you press the scan button, a predetermined range of songs, including the skip destination song specified by the number of presses, will be automatically scanned for the intro, and the beginning phrase of each song will be played sequentially for a certain amount of time. .

The desired song can be easily selected by giving a song selection command when the desired song appears while listening to the first few seconds of the phrase of each song that are played in the intro one after another. Therefore, even if the user does not remember the program number, song location, etc. accurately, the user can quickly find the desired song.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a DAT to which the skipping selection method of the present invention is applied. In the figure, 1 is a rotating drum equipped with two magnetic heads A and B, 2 is a drum motor, 3 is a drum servo circuit, 4 is an RF reproduction amplifier, 5 is a signal processing section, 6 is a D/A converter, and 7 Reference numeral 8 indicates a system controller consisting of a microcomputer, 8 a scan button for skipping music selection, and 9 a music selection button.

Next, with reference to the flowchart of FIG. 1 and the time chart of FIG. 3, the skipping music selection operation of the present invention will be explained. It is assumed that the number of skipped songs is set in advance so that the scan button 8 will skip five songs each time it is pressed, and the number of songs to be skipped will be set in advance so that it will skip five songs each time the scan button 8 is pressed. Let us take as an example a case where a total of five songs are intro scanned. Note that the processing operations of the system controller 7 described below are realized in software by a built-in microcomputer.

During the PLAY operation, the rotating drum 1 is rotated at a rotation speed of 200 by the drum motor 2 and drum servo circuit 3.
0 (rpm), and the magnetic head A
, B are sent to the signal processing section 5 via the RF reproduction amplifier 4, and the original digital signal is recovered by demodulation, deinterleaving, error correction, interpolation, etc. of the reproduction signal. and the D/A converter 6
After being converted to an analog signal, it is output as an audio signal.

Now, as shown in Figure 3 (a) and (b), PNα3
Suppose that you want to listen to the song PNα24 while playing the song . However, the user does not remember this PNα accurately, and the currently playing PNo. Let's assume that all I remember is that it was about 20 songs after song 3.

As mentioned above, the scan button l is set to skip five songs each time it is pressed. Therefore, in order to skip to the next 20 songs, the user has only to press the scan button 8 four times in succession in the manner of "boom, bom, bom, bom" (step Sl in FIG. 1).

The number of presses N of the scan button 1 on the system controller 7 is counted to obtain a count value N=4 (step 32). Then, the specified number of skip songs NX5=4X5=20 (number of songs) is calculated from this count value N=4, and the P No. of the 20 songs ahead is calculated. In order to intro scan the 5 songs before and after song 23, subtract the predetermined number of songs 2 from the number of skip songs calculated above, 20.
Song position M for starting intro scan = (NX5)
-2=18 (track number) is set (step 53).

After setting the intro scan start position M=18, the system controller 7 switches the drum servo circuit 3, drum motor 2, and other necessary circuits to high-speed search mode (step S4), and records the information at the beginning of each song. The tape is fed at high speed while counting the start ID (hereinafter referred to as "S.IDJ"), and jumps all at once to the beginning position of the 18th track, PNn2 1 (steps S5, S56).

When the system jumps to the beginning of PNa21, which is 18 songs ahead, at high speed as described above, the system controller 7 changes the operating mode of the device to the next song one after another while playing the beginning of each song for 10 seconds, for example. The so-called intro scan mode for scanning is set, and the intro scan operation is started from the song PN[L2 1 (step S7). The user determines whether or not the intro playback song is the desired song while sequentially listening to the playback phrases for the first 10 seconds of each song based on the intro scan.

The system controller 7 counts the number Y of intro-scanned songs by detecting S/rD (step S8), and selects a total of five songs, centering on Plt2 and Plt23 specified by the scan button 8, and two songs before and after that, that is, Plla2.
It is monitored whether the intro scan of the five songs from 1 to PN[l25 has been completed (step 59).

If the intro scanning of the five songs has not been completed, the process moves to step SIO, and monitors whether or not the song selection button 9 has been pressed during the intro scanning.

If the song being played intro is not the desired song, the song selection button 9 will not be pressed, so the process moves to step Sll, counts the intro playback time of the song (step Sll), It is monitored whether the playback time of seconds has elapsed (step S12). When the playback time of 10 seconds at the beginning of the song has elapsed, the program jumps to the beginning of the next song (step 313), returns to step S7, and repeats the above-mentioned intro scan operation sequentially.

During the repetition of the above intro scan, if the song being played as an intro is the target song, that is, a PNα24 song, the user can know this by listening to the phrase played for 10 seconds at the beginning of the song. Therefore, when the user finds the desired song, all he has to do is press the channel selection button 9 at that point. As a result, it is detected in step 310 that the channel selection button 9 has been pressed, and the process moves to step 514, where the intro scan operation is canceled and the device is switched to playback mode.

As a result, as shown in FIG. 3(b), the target PN
The song a24 is selected, and the normal playback operation is started from this selected song. Therefore, the PNI of the desired song
Even if you don't remember the exact location of the song, you can easily find the song you want by listening to the phrases at the beginning of the song that are played in the intro one after another. On the other hand, if the target song does not come out even after the intro scan of a total of five songs centered on PNα 23 is completed, the process proceeds from step S9 to step S14. Then, as shown in FIG. 3(6), the original playback mode is resumed from the Pk26 song next to PNα25 for which the intro scan has been completed, and normal playback continues.

In addition, in the above embodiment, the song selection button 9 dedicated to skipping channel selection is
However, this song selection button 9 is omitted, and if any button is pressed during the intro scan operation, such as the scan button 8 itself, the FF button, the REW button, etc., it is processed as a song selection command. You can do it like this. Further, although the number of skipped songs per press of the scan button 8 is set to five, an arbitrary number of skipped songs can be set. Furthermore, the intro scan is performed for a total of 5 songs, centering on the skip song specified with the scan button 8, and the two songs before and after it, but you can also freely set which range of songs before and after the skip song is scanned for the intro. It is possible. [Effects of the Invention] As is clear from the above description, when using the skipping music selection method of the present invention, music selection operations can be performed easily and safely, albeit roughly, using only one key. Therefore, since the user can be freed from complicated button operations, it is particularly effective when applied to car DATs and the like.

Furthermore, since the intro scan automatically scans a predetermined range of songs including the specified song, you can easily and quickly search for the desired song even when there are many songs or the memory of the song number is vague. I can do it.

[Brief explanation of drawings]

FIG. 1 is a flow chart of the operation of the method of the present invention, FIG. 2 is a block diagram of an embodiment constructed by applying the method of the present invention, and FIG. 3 is a timing chart of the operation of the above embodiment.

Claims (1)

[Scope of Claims] A scan button for skipping songs is provided in which the number of skipped songs is predetermined per press, and the skip destination song position is specified by the number of times the scan button is pressed, After performing a high-speed search to the previous song position by the number of songs, an intro scan is performed to sequentially play the beginning of each song for a certain period of time for a predetermined range of songs including the specified song, and a song selection command is issued during the intro scan. An interlaced song selection method for a digital audio tape recorder, characterized in that the operation mode is switched to a normal playback state when an intro scan of the predetermined range of songs is given or when an intro scan of the predetermined range of songs is completed.