JPH10293991A - Disk reproducer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a reproduction from an arbitrary position with a simple operation by performing the arbitrary search position on the way of one track with the value of not larger than a decimal point in terms of 1 as one track in addition to the normal search of one track unit at the time of reproducing a musical signal. SOLUTION: At the time of specifying the track number of an optical (or magnetic) disk 11, when the number (m) of tens digit and the number (n) of units digit of a track number are specified with a key input device 6 or a remove control commander 7 and a decimal indication key is depressed during a reproduction, a microcomputer 1 reads its operation signal and the input possible display of the number of not larger than the decimal point is displayed on a display tube 8. Next, a mid-position of the track having the valve of not larger that the decimal point is searched by the microcomputer 1, a servo control circuit 2, a pickup assembly 5 with the key operation of a figure other than a 0 key and then this disk reproducer enters into a reproduction. It is aimed at in this device that a search is easily applied to the rough position in an arbitrary track in this way and the disk is made to be reproduced from the arbitrary position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a disk reproducing apparatus.

[0002]

2. Description of the Related Art Conventionally, CDs (compact discs) and M
As a reproducing function in a disk reproducing apparatus for reproducing an optical (magnetic) disk of D (mini disk), reproduction by normal search for reproducing from the beginning of a track of the disk,
There has been reproduction by time search in which a time is set and reproduction is performed from that position. When setting the place where playback is to be started by time or the like, the size (time) of the track must be grasped, and playback can be performed at an ambiguous position setting such as near the middle of a certain track or near the end. could not.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a disc reproducing apparatus which can reproduce a disc from an arbitrary position by a simple operation.

[0004]

According to the present invention, there is provided a disk reproducing apparatus comprising: first means for instructing a decimal point search; second means for setting a number n below the decimal point; And a third means for searching for a position of (the start position time of the current track number) + (the size of the entire current track (time) ÷ 10) × n based on the given number.

[0005] Further, a disc reproducing apparatus according to the present invention comprises:
The first means is also to use the "0" key among the operation keys.

[0006]

When the size of one track of the disk is 1, an arbitrary position corresponding to the number below the decimal point is searched and reproduced.

[0007]

FIG. 1 is a schematic diagram showing one embodiment of a disk reproducing apparatus according to the present invention. In FIG. 1, 1 is a microcomputer, 2 is a servo control circuit, 3 is an analog reproduction circuit, 4 is a disk motor,
5 is an optical (or magnetic) pickup assembly, 6 is a key input unit, 7 is a remote control commander, 8 is a display device, 9
And 10 are speakers, and 11 is an optical (or magnetic) disk.

In the above configuration, when reproducing information recorded on the optical (magnetic) disk 11, such as a CD or MD, from which track information (TOC information) can be read in advance, for example, a music signal, 1 In addition to the normal search in track units, it is possible to search at an arbitrary position in the middle of one track according to the present invention. The present invention
The search position is set by a value below the decimal point when one track is set to one.

A certain track on the disk 11 is, for example,
The "+10" key of the operation keys on the key input section 6 or the remote control commander 7 designates the tens place m of the track number, and the numeral keys "0" to "9" designates the place n of the track number. When a decimal point instruction key (for example, the “0” key is also used as a decimal point instruction key) is pressed during reproduction, the microcomputer 1 that has read the operation signal inputs the value after the decimal point to the display device 8. A display indicating that it is possible is made. Next, when a numeric key (“1” to “9” keys) other than the “0” key is operated, the numeric value becomes a value below the decimal point, and the midway position of the track based on the value is determined by the microcomputer 1 and the servo control circuit 2. Then, the pickup assembly 5 performs a search, and the reproduction is performed from the intermediate position.

[0010] Since one track is 1, the value after the decimal point to be set is the relative position of the track. Therefore, since the size (time) of each track is different, whether or not the position of, for example, “0.9” of a certain track is a little remaining in the track depends on the size (time) of the track. Will be. In this way, you can easily search for the approximate position in any track,
Start playback from there. In short, the main focus is on reproducing from an arbitrary position on the track with a simple operation.

FIG. 2 is a flowchart for explaining the operation of the present invention, and shows the operation based on the operation of the "+10" key among the operation keys. In this flowchart, when the +10 key is pressed once, the value of m in the tens place in the track number is 1
When the key is pressed a plurality of times, m is determined as a number corresponding to the number of times the key is pressed.

First, when the +10 key is pressed once, at S1, 1
It is determined whether or not the track number m of the 0's digit is being input. If no (the first +10 key operation), the flow advances to S2 to set m = 1, and then to S3, the input status of the tens digit is set. I do. Then, if there is no input for a certain period of time, release
= 1. With this determination, for example, “1-?” Is displayed on the track number display portion of the display device 8. In this display, since the tens place of the track number is 1, and the ones place is not set yet and is unknown, a bar (-) is displayed. If the answer in S1 is yes (because the next operation has been performed during a certain period of time), the process proceeds to S4, and it is determined whether or not m = 9. If no (m = 1), the process proceeds to S5 and m is set to 1 Is incremented to m = 2, and then at S7, 10
Set to the input state of the digit. Thereafter, if there is no input for a fixed time, the input is released and m = 2 is determined. With this determination, for example, “2-?” Is displayed on the track number display portion of the display device 8.

Similarly, when the +10 key is pressed three to nine times, the operations of S1 to S7 are repeated, and if there is no operation within a predetermined time, the number corresponding to the number of times the key is pressed becomes the m value. In addition, a corresponding display is performed on the track number display portion on the display device 8. And the +10 key is 1
If it is depressed 0 times, the answer is yes in S4 (since m = 9), so the process proceeds to S6, where m = 0, and then in S7, the tens digit input state is set. Thereafter, if there is no input for a certain period of time, the input is canceled and m = 0 (that is, it means that there is no tens place of the track number).

FIG. 3 is a flowchart for explaining the operation of the present invention, and shows the operation based on the operation of the "0" key among the operation keys. In this flowchart, when the 0 key is pressed once after the operation of the +10 key, the value of n at the first digit in the track number is determined to be 0, and the 0 key indicates a decimal point during reproduction or reproduction pause. Acts as a decimal point indicator key for

First, when the 0 key is pressed once, the key number n is set to 0 at S11, then it is determined at S12 whether or not the apparatus is stopped. It is determined whether or not a number is being input. If the answer in S13 is no, the work is finished. If the answer is yes, in S14, the number determined by the current m in the tens place and n (= 0) in the ones place (10 × m + n (= 0)) = 10m Search for the start position of the track and start reproduction. If 10m does not exist, the track number input state is released. On the other hand, the answer to S12 is NO (during playback or playback pause)
If so, the flow advances to S15 to determine whether or not the tens digit track number is being input. If the result is YES, the flow advances to S16, where the number determined by the current tenth digit m and the first digit n (10 × m +
(n (= 0)) = 10 m. If 10m does not exist, the track number input state is released.

If the answer to S15 is NO, the process proceeds to S17, where it is determined whether or not a decimal point search instruction is being performed. If NO, the process proceeds to S18, where the decimal point search input state is set. If there is no input for a fixed time, the decimal point search input state is released. With this set, a decimal point "." Is displayed next to the track number display, for example, "15" on the display device 8, and "15.-?" Is displayed.
This display indicates that the tens place of the track number is 1 and the tens place is 5 and that the decimal point indication has been set by ".". Further, since the first place of the decimal point has not yet been set, the bar (-) Is displayed. If the answer to S17 is yes, the process proceeds to S19, and the input state of the decimal point search is released.

FIG. 4 is a flowchart for explaining the operation of the present invention, and shows the operation based on the operation of the "1" to "9" keys of the operation keys. In this flowchart, +10
When the "1" to "9" keys are pressed once following the key operation, the value of n in the first place in the track number is determined to be 1 to 9, and the "1" to "9" keys are used for decimal point search. Acts as a number input key at the first decimal place during input.

First, when any of the "1" to "9" keys are pressed, the key numbers n = 1 to 9 are set in S21. Then, in S22, it is determined whether the apparatus is stopped or not. Proceeding to S23, it is determined whether the tens digit track number is being input. If the answer in S23 is no, the work is finished. If the answer is yes, in S24, the current tenth place m and the first place n are set.
Search for the start position of the track of the number 10 × m + n determined by the above and starts reproduction. If 10 × m + n does not exist, the track number input state is released. S2
If the answer to 3 is no, the process proceeds to S25, where the start position of the track n is searched and reproduction is started. If n does not exist, the track number input state is released.

On the other hand, if the answer to S22 is NO, the process proceeds to S26, and it is determined whether or not the tens digit track number is being input. If the answer is YES, the process proceeds to S27, where the current tens digit m and 1 digit are entered. Is searched for the start position of the track of the number 10 × m + n determined by n. If 10 × m + n does not exist, the track number input state is released. S26
If the answer is no, the process proceeds to S28, where it is determined whether or not a decimal point search is being instructed. If the answer is no, the process proceeds to S29 to search for the start position of the track number n. If n does not exist, the track number input state is released. If the answer to S28 is YES (because the decimal point is being searched by the operation of the 0 key), the process proceeds to S30, where (the head position time of the current track number) + (the size of the entire current track (time) ÷ 10). Search for the position of × n.

As described above, it is possible to search at an arbitrary position in the middle of the recording track of the disk 11, and the reproduction can be started from there.

FIG. 5 is a conceptual diagram for explaining a search point at an arbitrary position on a track of a disk.
7 (meaning a playback position of 7/10 in the playback time of track No. 2).

FIG. 6 shows a display example of the display device shown in FIG. 1. For example, as shown in FIG. 3 is being reproduced, a "triangle mark", "003" representing a track number, and "0:15" representing a reproduction time are displayed. Next, when the "0" key in the operation keys is pressed, as shown in (B),
After "003", the decimal point blinks and the time display disappears. Next, when, for example, a "5" key in the operation keys is pressed, "5" is displayed after the decimal point as shown in FIG. Then, when the search is over,
The position confirmed by the search (5 times of the entire track time)
/ 10 search point) and the track N
o. Searching around the middle of No. 3 starts playback from there. Track No. at the start of playback 3, the reproduction time is, for example, “4:25” as shown in (D).
(4 minutes 25 seconds) is displayed.

Although not shown, another example is "0".
After operating the key and displaying "." And a decimal point on the display,
When the "9" key is operated, "1.9" is set, and the track No. 9 is set. A search near the end of 1 is made and reproduction is started from there.

[0024]

In the above description, only the first decimal place is set at the time of the decimal point search, but a finer setting than the second decimal place may be performed. In the above embodiment, the "0" key is also used as the decimal point instruction key, but the decimal point instruction key may be independently provided. Further, the present invention can be applied to devices other than the disc reproducing device. For example, in a tuner or the like, if the position of the reception frequency with respect to the entire reception band area is set in a similar way, after moving to a rough position, the station can be received by auto tuning, and reception can be performed only by conventional auto tuning. Tuning speed is faster than searching for a station.

As described above, it is possible to reproduce from an arbitrary position on a track of a disk without performing complicated settings such as the conventional time search. Furthermore, by expressing the decimal point (in short, a percentage), the reproduction position can be set at the approximate position of the track. In the above embodiment, the "0" key is used to cancel the input state of the decimal point search in step S19.
19 may be changed so that the head position of the current track number is searched. Also, by using the decimal point instruction key also as the "0" key, the conventional remote control small commander and the arrangement of the operation keys can be used as they are.

[0026]

According to the present invention, there is provided a disc reproducing apparatus capable of reproducing from an arbitrary position on a disc by a simple operation.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of a disk reproducing apparatus according to the present invention.

FIG. 2 is a flowchart illustrating an operation of the present invention, showing an operation based on an operation of a “+10” key among operation keys.

FIG. 3 is a flowchart illustrating the operation of the present invention, showing an operation based on an operation of a “0” key among operation keys.

FIG. 4 is a flowchart illustrating the operation of the present invention, showing an operation based on an operation of keys “1” to “9” among operation keys.

FIG. 5 is a conceptual diagram illustrating a search point at an arbitrary position on a track on a disc.

FIG. 6 is a display example of the display device in FIG. 1, (A)
(D) shows the display process at the time of the decimal point search.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microcomputer 2 Servo control circuit 3 Analog reproduction circuit 4 Disk motor 5 Pickup assembly 6 Key input section 7 Remote control commander 8 Display device 9 Speaker 10 Speaker 11 Optical (or magnetic) disk

Claims (2)

[Claims] A first means for indicating a decimal point search;
A second means for setting the number n below the decimal point, and based on the number set by the second means, (the start position time of the current track number) plus (the size (time) of the entire current track) ÷ 10) A disk reproducing apparatus comprising: a third means for searching a position of × n. 2. A disk reproducing apparatus according to claim 2, wherein said first means also serves as a "0" key among operation keys.