JP3701223B2 - Song selection method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording / playback technique, and more particularly to a music selection method for randomly selecting and playing back a plurality of music digitally recorded on a CD (Compact Disc), an MD (Mini Disc), or the like.
[0002]
Data such as music is digitally recorded on a disk such as the above-mentioned CD, MD, or DVD (digital other purpose disk), and is optically read and reproduced using, for example, a laser beam. Since such a disc has a long recording / playback time of, for example, 10 hours or more, it may include a large number of songs ranging from 100 to 200 songs, for example. When a large number of songs are played in this way, they may be played sequentially (sequentially) according to the order in which they are stored or recorded on the disc. It is common to do.
[0003]
Conventional music selection in a CD or MD is generally performed by a user pressing and operating a SKIP UP / DOWN key provided on an operation panel of a CD or MD device body or a remote controller. FIG. 2 is a flowchart showing a conventional channel selection method in CD or MD. Hereinafter, a conventional general music selection method will be described with reference to the flowchart of FIG.
[0004]
In the case of selecting music using the SKIP UP key, it is determined whether or not a predetermined time (for example, 5 seconds) for which the key is pressed by the user has elapsed (step B1). For example, if the user continues to press the SKIP UP key, the internal music selection counter is set to a relatively slow first speed, for example, at intervals of 0.3 S (seconds) until a predetermined time has elapsed (step B1: No). Is incremented (step B2). The music selection counter is displayed on a display unit such as a liquid crystal display device provided on the operation panel of the CD or MD device body or its remote controller.
[0005]
On the other hand, when the time during which the user presses the SKIP UP key exceeds a predetermined time (step B1: Yes), the music selection counter described above is set at a relatively fast second speed, for example, at intervals of 0.2S. Increment (step B3). Therefore, when the number of the song to be reproduced by the user is away from the current value of the music selection counter, the user continues to press the SKIP UP key. When the value of the music selection counter comes close to the music to be reproduced, the user stops pressing the SKIP UP key. If the music selection counter value at the time of stop coincides with the desired music number, the music is reproduced as it is. However, if it is before the desired music number, the SKIP UP key is pressed again, the music selection counter is incremented at the first speed described above, and reproduction is started in accordance with the desired music number.
[0006]
If the value of the music selection counter at the second speed described above exceeds the desired song number, the SKIP DOWN key is pressed to match the desired song number. Similarly, the SKIP DOWN key switches the decrement speed of the music selection counter to the first speed or the second speed according to the time of the pressing operation. In this way, the user presses the SKIP UP / DOWN key while referring to the display of the music selection counter, and selects the number of the music piece desired to be reproduced.
[0007]
[Problems to be solved by the invention]
Although depending on the setting of the predetermined time described above, since the first speed of the SKIP UP / DOWN operation is constant, it takes time to complete the music selection operation on a disk with a large number of music. Also, if the SKIP UP / DOWN speed is set too fast, it is difficult to select a music to match the music selection counter with the desired music selection number.
[0008]
OBJECT OF THE INVENTION
The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a music selection method for a disc that enables simple and quick music selection.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems, the channel selection method according to the present invention employs the following characteristic configuration.
[0010]
(1) In a music selection method for selecting and playing a song desired by a user from a plurality of songs recorded on a disc by SKIP UP (or SKIP DOWN),
A music selection method for detecting the total number of songs recorded on the disc, comparing the total number of songs with at least one preselected number, and changing the SKIP UP (or SKIP DOWN) interval to a plurality of values. .
[0011]
(2) The music selection method according to (1), wherein the interval of the SKIP UP (or SKIP DOWN) is switched to at least three stages of low speed, medium speed, and high speed.
[0012]
(3) The music selection method according to (1) or (2) above, wherein the SKIP UP interval is selected as a minimum value when the number of remaining music pieces falls within a certain range.
[0013]
(4) The music selection method according to (3), wherein the predetermined range is set to be equal to the number of songs for switching the SKIP UP interval from the lowest value to the next value.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a music selection method according to the present invention will be described in detail with reference to the accompanying drawings.
[0015]
FIG. 1 is a flowchart showing a preferred embodiment of a music selection method according to the present invention.
First, it is determined whether or not the total number of songs Tmax stored on the disc is smaller than a predetermined number of songs M (first song number) (step A1). If the total number of songs Tmax is smaller than M (ie, Tmax <M) (step A1: Yes), the music selection counter is incremented at the first (or lowest) speed, for example, at 0.3S intervals (step A2), Return (step A3).
[0016]
On the other hand, if the total number of songs Tmax is not less than M (step A1: No), it is determined whether or not the total number of songs Tmax is greater than a predetermined number of songs N (second song number). If N <Tmax is not satisfied (step A4: No), the music selection counter described above is incremented at the second (or intermediate) speed, for example, 0.2S (step A5). If N <Tmax (step A4: Yes), the music selection counter described above is incremented at the third (or highest) speed, for example, at intervals of 0.1S (step A6).
[0017]
After step A5 or A6 described above, it is determined whether or not the current number of songs (that is, the current value of the music selection counter) Tn is smaller than the value M described above (step A7). If the remaining number of songs (Tmax-Tn) is less than a certain range, that is, M (step A7: Yes), the above-mentioned music selection counter is incremented again at 0.3S intervals as the first speed (step S8). Return (step A9). If the remaining number of songs is not less than M (step A7: No), the process returns (step A10).
[0018]
In the preferred embodiment described above, the increment of the music selection counter is switched to a plurality (three levels) according to the total number of music pieces Tmax. That is, the increment speed of the music selection counter is switched to 0.3S intervals when Tmax <M, 0.2S intervals when M <Tmax <N, and 0.1S intervals when Tmax> N. Thereby, it is possible to quickly select a song that the user desires to reproduce. Here, the above-described numerical values M and N can be arbitrarily selected, but may be M = 10 and N = 50, for example.
[0019]
In the above-described preferred embodiment of the present invention, as shown in steps A7 to A10, the current number of songs is compared with a predetermined numerical value M, and the current number of songs Tn is smaller than this numerical value M. When the value is reached, the music selection counter increment speed is returned to, for example, the first (minimum) speed to facilitate the music selection operation.
[0020]
The preferred embodiment of the music selection method according to the present invention has been described above in detail. However, such an embodiment is merely an example of the present invention and does not limit the present invention. Those skilled in the art can easily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention. For example, the numerical values M and N described above can be arbitrarily set. Further, the switching of the increment speed of the music selection counter may be switched to a plurality of stages of four or more stages instead of the three stages of the above-described embodiment.
Further, the numerical value to be compared with the current number of songs in step A7 described above may be a numerical value different from M.
[0021]
【The invention's effect】
As understood from the above description, according to the music selection method of the present invention, the following remarkable effects in practical use can be obtained. In other words, even if the number of songs stored on the disc ranges from 100 to 200, for example, the music can be selected in a short time. Also, since the SKIP UP / DOWN (interval) speed is automatically selected according to the total number of songs stored on the disc, the music selection operation can be performed quickly even when a large number of songs are stored. Furthermore, when the number of remaining songs decreases, the SKIP UP interval can be automatically delayed.
[Brief description of the drawings]
FIG. 1 is a flowchart illustrating a preferred embodiment of a music selection method of the present invention.
FIG. 2 is a flowchart showing a general conventional example of a music selection method.

Claims (4)

In a music selection method for selecting and playing a song desired by a user from a plurality of songs recorded on a disc by SKIP UP (or SKIP DOWN),
Detecting the total number of songs recorded on the disc, comparing the total number of songs with at least one number selected in advance, and changing the interval of SKIP UP (or SKIP DOWN) to a plurality of values; A featured music selection method. 2. The music selection method according to claim 1, wherein an interval of the SKIP UP (or SKIP DOWN) is switched to at least three stages of low speed, medium speed, and high speed. 3. The music selection method according to claim 1, wherein the SKIP UP interval is selected to be a minimum value when the number of remaining music pieces falls within a certain range. 4. The music selection method according to claim 3, wherein the predetermined range is set to be equal to the number of songs for switching the SKIP UP interval from the lowest value to the next value.

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