JP2924207B2 - Disc playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk reproducing apparatus for reproducing data recorded on a disk such as a digital audio disk.

[0002]

2. Description of the Related Art A conventional compact disk (CD) player has a scan function. When the scan button is operated, the scan function sequentially reproduces only the head portion of each of the plurality of songs recorded on the CD. When the target song is reproduced, the scan button is operated again. Is a function for performing normal reproduction of a target music.

[0003]

However, the scanning function of the above-mentioned conventional CD player plays the head portion of each of a plurality of songs recorded on a CD for a predetermined period of time (for example, 10 seconds for each song). The structure does not jump to the beginning of the next song until the predetermined time elapses, so if the content of the song can be determined before the elapse of the predetermined time, the operation shifts to the playback operation of the head of the next song if the predetermined time does not elapse Therefore, there is a problem that the scanning operation takes time.

The present invention has been made to solve the above-mentioned conventional problem, and provides a disk reproducing apparatus capable of shifting to a reproducing operation of a head portion of a next music piece without waiting for playing a head portion of each music piece for a predetermined time. Is what you do.

[0005]

In order to achieve the above object, the present invention provides a reproducing means for reproducing a disk, a control means for controlling the reproducing means, and a key operating means for giving a control command to the controlling means. In response to a predetermined key operation of the key operation means, an intro search operation for sequentially reproducing only the head portions of a plurality of songs recorded on the disc for a predetermined time is started , and during the intro search operation At the time of the above specified key or another key at
It is for the operation of less than between, the one playing the first part of the song
The operation is terminated before the lapse of the fixed time, and the reproduction of the head portion of the next music is started.
Exit Ntorosachi operation in which characterized that you begin normal playback.

[0006]

The present invention is constructed as described above. When a predetermined key is operated, an intro search operation for sequentially reproducing only a head portion of a plurality of music pieces recorded on a disc for a predetermined time, and an intro search operation If the above key or another key is operated during playback, the playback of the beginning of the predetermined song can be terminated before the predetermined time has elapsed and the operation can be shifted to the playback of the beginning of the next song, thereby shortening the intro search operation. Can be done in time.

[0007]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an in-vehicle compact disc reproducing apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an operation display unit including a power switch 2, a display unit 3, and a key input unit 4. The power switch 2 supplies and shuts off a battery voltage. The display section 3 displays the track number of the compact disc, the playing time, and the like. The key input unit 4 includes a play key 41, a stop key 42, a mode switching key 43, a track up key 44, a track down key 45, a repeat key 46, and an intro (INTRO) key 47 for controlling the operation of the reproducing unit 7. Etc. are provided. Reference numeral 5 denotes a power supply unit that converts the battery power supply voltage supplied via the power supply switch 2 into a voltage required for the operation display unit 1, the control unit 6, and the reproduction unit 7 and supplies the required voltage. Reference numeral 6 denotes a control unit including a central processing unit (CPU) 61 including a read-only memory (ROM) and a standby RAM 62. The CPU 61 of the control unit 6 has a discrimination function for discriminating keys operated by the key input unit 4, a key A playback operation control function for outputting an operation command to the playback unit 7 based on the determination result, an intro search function for performing a track search and sequentially playing back the beginning of the music for a fixed time, a track number according to the state of the playback unit 7, and a performance The display unit 3 has a display control function of displaying time and the like on the display unit 3. The standby RAM 62 is constantly supplied with a battery voltage via the power supply unit 5, and can retain the stored contents even when the power switch 2 is turned off.

In FIG. 1, when the disc 8 is inserted into the reproducing section 7 and the play key 41 is operated, the reproducing operation of the disc 8 is started, and when the stop key 42 is operated, the reproducing operation is ended. When the track up key 44 or the track down key 45 is operated, the operation shifts to the reproduction operation of the next song of the currently reproduced song or the previous song of the currently reproduced song. These operations can be performed by a normal disk reproducing device.

Next, the intro search function of this embodiment will be described with reference to FIG. It is assumed that the third song of the plurality of songs recorded on the disc is currently being reproduced. When the intro key 47 in FIG. 1 is operated, the control unit 6 controls the reproducing unit 7 to shift to the intro search mode in step a. First, in step b, the intro search start track (track number: 3) is stored in the memory. Then, the next song (the fourth song) is searched. Next, the reproduction of the fourth tune is continued in step c, and it is determined in step d whether the intro key 47 has been operated for a shorter time than a predetermined time (for example, 2 seconds). If it is determined in step d that the intro key 47 has not been operated for a short time, it is determined in step e whether or not the reproduction time of the fourth music has elapsed for a predetermined time (for example, 10 seconds). If it is determined in Step e that 10 seconds have not elapsed, it is determined in Step f whether or not the intro key 47 has been operated for longer than a predetermined time (for example, 2 seconds). If the determination in step f is no, the process returns to step c. If it is determined in step f that the intro key 47 has been operated for more than 2 seconds, the intro search mode is canceled in step g, and normal playback is restored in step h. If it is determined in step d that the intro key 47 has been operated for a short time of 2 seconds or less, or if it is determined in step e that the performance time of the fourth tune has elapsed for a predetermined time (10 seconds), the process proceeds to step i. In step i, it is determined whether or not the current playback track is the last track. If the answer is YES in step i, the process proceeds to step j, and it is determined whether the track (track number: 3) where the intro search is started is the first track (that is, the first track). As described above, since the intro search is started at track number 3, step j
Is determined to be no, a head track search is performed in step l, and the process returns to step c to continue the reproduction operation of the first music. If the answer is affirmative in step j, the intro search mode is canceled in step k, a head track search is performed, and in step h, the normal reproduction operation of the first music is performed. If it is determined in step i that the track currently being reproduced is not the last track, the process proceeds to step m,
1 of the intro search start track (track number: 3)
It is determined whether the current track is the previous track (track number: 2). If the answer is yes in step m, the intro search mode is canceled in step n, the next track is searched, and the process returns to step h to return to the normal performance. If the answer is no in step m, the next track is taken in step o. Is searched and the process returns to step c.

[0011] For example, 3 of a disc on which 10 songs are recorded
Assume that the song is currently playing. When the intro key 47 is operated during the reproduction of the third song, the intro search start track (track number: 3) is stored in the memory in step b, and the next track (track number: 4) is searched in step b. In step c, the reproduction of the head portion of the fourth music starts. If the intro key 47 is not operated for a short time of 2 seconds or less during the reproduction of the head of the fourth music (step d), and the reproduction of the head of the fourth music has elapsed for 10 seconds (determination of step e), the process proceeds to step i. And the current track number is the last track number (track number: 10)
It is determined whether or not. Since the current track number is 4 and not the last track number 10, the process proceeds to step m and it is determined whether or not the track number is 2 immediately before the intro search start track number 3. (Track No. 5) is searched and the process returns to step c.

On the other hand, during the reproduction of the third tune, the intro key 47 is operated to enter the intro search mode.
If the intro key 47 is operated for a short time of 2 seconds or less during the reproduction of the head portion of the fourth music piece in step c, the process proceeds to step i, and the next track (track number 5) is executed in step o as in the above operation. Is searched and the process returns to step c.

As described above, according to the present embodiment, when the intro key 47 is operated during the reproduction of the third music, the intro search operation for reproducing only the head portion from the fourth music in order of 10 seconds is executed up to the second music. By operating the intro key 47 for more than 2 seconds during the intro search operation, the intro search operation can be terminated, and the intro key 47 must be pressed for 2 seconds before the reproduction of the head portion of the music has elapsed 10 seconds. When the following short operation is performed, the reproduction of the head portion of the music can be ended halfway and the reproduction of the head portion of the next music can be started. That is, before the reproduction of the head portion of the song elapses a predetermined time (10 seconds), the content of the song is known, and when it is not necessary to continue the reproduction of the head portion any more, the intro key 47 is operated. It is possible to shift to the reproduction of the beginning of the next song. For this reason, the intro search time can be shortened.

In the above embodiment, the track number at the start of the intro search is stored, and the intro search operation is performed from the music following the track at the start of the intro search to the track immediately before the track at the start of the intro search. However, the track number at the start of the intro search is not stored in the memory, and the end of the intro search operation may be ended by operating the intro key 47 for a predetermined time (for example, 2 seconds). Good. FIG. 3 shows an operation flow of the second embodiment. In FIG. 3, the operation of the intro key 47 for a short time in step d before the reproduction of the head of the predetermined music has elapsed for 10 seconds can shift to the reproduction of the head of the next music. As in the example, the end of the intro search operation is executed only by operating the intro key 47 for more than 2 seconds in step f.

[0015]

As described above, according to the present invention, in the intro search operation for sequentially reproducing the head portions of a plurality of music pieces recorded on a disc at a constant time interval, the playback of the head portions of the music pieces is performed before a certain time has elapsed. For example, when the content of the music being reproduced is known, the operation can be shifted to the reproduction of the head of the next music by key operation, and the intro search operation can be shortened.

[Brief description of the drawings]

FIG. 1 is a block diagram of a disk data reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an intro search operation of the disc data reproducing apparatus in one embodiment of the present invention.

FIG. 3 is a flowchart showing an intro search operation of the disc data reproducing apparatus according to the second embodiment of the present invention;

[Explanation of symbols]

 1 operation display section 2 power switch 3 display section 4 key input section 5 power supply section 6 control section 7 playback section 8 disc

Claims (3)

(57) [Claims] 1. A reproducing device for reproducing a disc, a control device for controlling the reproducing device, and a key operation device for giving a control command to the control device, wherein the key operation device responds to a predetermined key operation of the key operation device. Then, an intro search operation for sequentially reproducing only the head portions of the plurality of songs recorded on the disc at a predetermined time interval is started, and a predetermined key or another key is pressed during the intro search operation.
Is for the operation of within the time, the playback of the first part of the song
The operation is terminated before the elapse of a predetermined time and the reproduction of the beginning of the next music is started.
A disc reproducing apparatus, which ends an intro search operation and starts normal reproduction. 2. The method according to claim 1, further comprising the steps of :
Operation of the specified key or another key longer than the specified time
If there is no intro search start song , the intro search starts from the song following the intro search start song to the song immediately before the intro search start song.
Operation and there was an operation longer than the specified time
In this case, the above intro search operation is terminated and normal playback is performed.
2. The disc reproducing apparatus according to claim 1 , wherein the starting of the disc is started . 3. Recording on a disk in response to a predetermined key operation.
Only the beginning of multiple recorded songs is played back sequentially for a certain period of time.
Start the intro search operation to generate
Of the key or another key during the
For operations within the time, play the beginning of the song
Stop before a certain period of time and play the beginning of the next song
In addition to shifting, for operations longer than the specified time
End the intro search operation and start normal playback.
Starting a disc reproduction method.