KR100276761B1 - How to play a digest of an optical disc - Google Patents

Abstract

In the present invention, upon digest reproduction of an optical disc, the total number of tracks of the optical disc is initially counted to display a screen size and arrangement structure corresponding to the number of tracks, so that the user can appropriately set the desired digest screen. A digestive reproduction method of an optical disc, comprising: reading the total number of tracks of the optical disc; Setting a size of a sub picture according to a plurality of sub picture display formats corresponding to the number of tracks; And displaying the digest sub-screens on the full screen, and further another aspect of the present invention provides a method of reading the total number of tracks of the optical disk; Setting a position of a sub picture according to a plurality of sub picture display formats corresponding to the number of tracks; And displaying the digest sub-screens on the entire screen, and can be sufficiently implemented by the control program of the Ampl decoder and the microcomputer, which supports the conventional digest function without adding any additional hardware. It can provide a visually stable form.

Description

How to play a digest of an optical disc

The present invention relates to a method for reproducing a digest of an optical disc. More specifically, in the case of digest reproduction of an optical disc, the total track number of the optical disc is initially counted to determine the screen size and position corresponding to each track number. The present invention relates to a digest reproduction method of an optical disc, which is configured to display so that the user can appropriately set a desired digest screen.

In general, an optical disk reproducing apparatus for reproducing an optical disk on which digital data has been recorded in an amplification manner includes a spindle motor 2 for driving the optical disk 1, as shown in FIG. A pickup unit 3 for detecting a signal recorded on the optical disc 1 by generating a light source through a light emitting diode (LED); An R / F unit (4) for shaping the detected input signal; A driving part 5 for driving the pickup part 3 and the motor 2; Servo for controlling the driving of the drive unit 5 from the output signal of the R / F unit 4 and the rotational speed of the optical disc 1, and detecting the synchronization of the output signal of the R / F unit 4. Part 6; A digital signal processor 7 for restoring the filtered video signal to the original compressed video data using the detected synchronization and then restoring the original compressed video data into an output signal; and an amplifier for decoding the restored compressed video data into an output signal. Peck section 8; A microcomputer 9 for controlling data flow between the components; And a memory 11 for temporarily storing the video data.

Referring to FIG. 1, the operation of the optical disc reproducing apparatus is as follows.

First, the pickup section 3 detects a digital recording signal on the optical disk 1 that is rotated by the spindle motor 2, that is, when the spindle motor 2 drives the optical disk 1, the pickup The unit 3 detects a signal recorded on the optical disk 1 by generating a light source through a light emitting diode.

The R / F unit 4 then filters and outputs the detected recording signal as a clean signal, and the drive unit 5 drives the pickup unit 3 and the motor 2.

The servo unit 60 controls the driving of the drive unit 5 from the output signal of the R / F unit 4 and the rotational speed of the optical disk 1, and output signal of the R / F unit 4. The digital signal processing unit 7 restores the filtered signal to a digital signal using the detected synchronization, and then restores the original compressed video data. Decoder is a decoder that decodes the reconstructed compressed video data into an output signal.

That is, the servo unit 6 extracts a desired signal in synchronization with the standardized signal while adjusting the rotation of the optical disc 1 and the position of the pick-up unit 3 according to the received signal state. The compressed video data is transmitted to the amplifier 8 through the processor 7.

Therefore, the video signal is reproduced by decoding the video signal in the amplifier unit 8.

The microcomputer 9 controls the data flow between the components by a user input or a built-in control program, and the memory 11 temporarily stores necessary data.

On the other hand, the digest function of the optical disc reproducing apparatus means that a plurality of sub pictures having a constant size corresponding to each track are displayed on one full screen for a predetermined time during screen reproduction. That is, the content of the screen recorded on each track of the optical disk is provided to the user in one full screen, so that the user can check the various screens recorded on the optical disk.

In the conventional reproduction method of the optical disc, as shown in FIG. 2 (a) and FIG. 2 (b), the display is displayed on one full screen according to an output screen format determined to have the same size and a constant position. do. Here, the examples of FIGS. 2 (a) and 2 (b) show a digest screen of an optical disk having 13 tracks. In the first screen shown in FIG. Although displayed on the full screen, it can be seen that only four sub-screens are displayed on the second screen shown in FIG. 2 (b).

FIG. 3 is a flowchart of a conventional digest function, and shows a method of digesting nine subscreens on a full screen.

First, when the digest function is selected by the user, the total track number of the optical disc is read out (S11), and the track number comparison for determining whether the track number of the optical disc being searched is the same or greater than (multiple of 9 + 1). Step S12 is performed.

If the current track number is equal to or greater than (multiple of 9 + 1), the next digest screen is prepared (S13). At this time, the microcomputer 9 of FIG. 1 causes the amplifier unit 8 to decode the output signal for the next digest screen.

Next, after the track number is smaller than (multiple of 9 + 1) or after preparing the next digest screen, the searched subscreen is sequentially displayed at a predetermined position of the entire screen (S14).

Next, the next track is searched after displaying the searched subscreen (S15). In other words, the track number 1 is increased from the track number (S15).

If the next track number is greater than the total number of tracks, the program is terminated if it is larger than the total number of tracks. If the track number is smaller than the total number of tracks, the process returns to the track number comparison step (S12) (S16).

As a result, after reading the total number of tracks in the optical disc (S11), S12, S14, S15, and S16 are repeatedly performed, whereby nine sub-screens are displayed on one full screen according to a certain screen format for a predetermined time from the first track. Will be displayed on the screen.

In the 10th track, the next digest screen is prepared and 9 subscreens are displayed again on the next full screen. If the total number of tracks is 13 as shown in FIG. 2, nine subscreens are displayed on the first screen, and four subscreens are displayed on the second screen.

However, since the digest function of a conventional optical disc displays a sub-screen having only a certain size and position on a full screen, for example, since the sub-screens are generally displayed on one screen part by nine, the number of tracks in the optical disc can be reduced. Except for certain cases, the balance of the screen is reduced and the stability is not so awkward for the user to see, and there is a problem that can not be displayed in the format desired by the user.

Accordingly, the present invention is provided to solve the above problems, and provides the user with a digest screen having a proper size and position by using the number of tracks in the optical disk in the digest function, which is one of the functions of the optical disk player. The purpose is to improve the overall balance and to make the digest screen easier for the user by selecting and inputting the desired screen directly from the outside.

1 is a configuration diagram of an optical disc reproducing apparatus,

2 (a) and 2 (b) show a digest full screen and a sub-screen of an optical disc according to the prior art,

3 is an operation flowchart of a digest reproduction method of an optical disk according to the prior art,

4 shows a first sub-screen display format during digest reproduction output of an optical disc according to an embodiment of the present invention.

5 shows a second sub-screen display format during digest reproduction output of an optical disc according to an embodiment of the present invention.

6 shows a third sub-screen display format in digest reproduction output of an optical disc according to an embodiment of the present invention.

7 shows a fourth sub-screen display format in digest reproduction output of an optical disc according to an embodiment of the present invention.

8 shows the fifth sub-screen display format in the digest reproduction output of the optical disc according to the embodiment of the present invention.

9 shows a sixth sub-screen display format in digest reproduction output of an optical disc according to an embodiment of the present invention.

FIG. 10 shows a seventh sub-screen display format during digest reproduction output of an optical disc according to an embodiment of the present invention.

FIG. 11 shows the eighth sub-screen display format in the digest reproduction output of the optical disk according to the embodiment of the present invention.

FIG. 12 shows the ninth sub-screen display format in the digest reproduction output of the optical disc according to the embodiment of the present invention.

13 is a flowchart illustrating a method of digest reproduction of an optical disc according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: Optical Disk 2: Spindle Motor

3: Pick up part 4: R / F part

5: Driving part (DRV) 6: Servo part (SERVO)

7: Digital Signal Processing Unit (DSP) 8: Amplifier Unit (MPEG)

9: MICOM 11: Memory

A digest reproduction method of an optical disc according to the present invention for achieving the above object comprises: a first step of reading the number of reproduction tracks of the optical disc; A second step of varying a plurality of sub picture sizes in correspondence with the number of tracks; And a third step of displaying the plurality of digest sub-screens at the set size, and reading out the number of reproduction tracks of the optical disc. A second step of variably adjusting display positions of a plurality of sub-screens according to the number of tracks; And a third step of displaying the plurality of sub-screens at the adjusted position.

In the digest reproduction method of the optical disc according to the present invention as described above, a desired digest screen can be obtained by arbitrarily setting the screen size and arrangement at the time of the digest function corresponding to the number of tracks of the optical disc. By using the number of tracks, a screen of various sizes and arrangements is provided to the user by a preset screen format during the digest operation.

Best Mode for Carrying Out the Invention A preferred embodiment of the digest reproduction method of an optical disc according to the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 13 is an operation flowchart of a digest reproduction method of an optical disc according to an embodiment of the present invention, which includes: reading out the total number of tracks (S21) for reading the total number of tracks of the optical disk; A total track number comparison step (S22) for comparing whether the total track number is greater than 9; A track number comparison step (S23) for determining whether the track number to be searched corresponds to (multiple of 9 + 1) when the total number of tracks is greater than nine (S23); Preparing a next digest screen when the track number corresponds to a multiple of 9 (S24); After preparing for the next digest screen, comparing (S25) if (total number of tracks-current track number + 1) is greater than nine (S25); A sub-screen display format selection step of selecting a display screen format corresponding to each track number when the (total track number-current track number + 1) is less than or equal to 9 S26); If the track number does not correspond to (multiple of 9 + 1), (total track number-current track number + 1) is not greater than 9, or the sub screen display format is selected, the searched sub screen is displayed. Step S27; Searching for the next track after displaying the burned sub-screen (S28); And determining whether the next track is greater than the total number of tracks, ending the program if greater than the total number of tracks, and returning to the track number comparing step (S23) if greater than or equal to the total number of tracks (S29). Since the configuration of the optical disc reproducing apparatus for implementing the present invention is the same as that of the optical disc reproducing apparatus of FIG. 1, the optical disc digest of FIG. 13 will be described below with reference to the configuration diagram of the optical disc reproducing apparatus of FIG. The process in which the method takes place is described in detail.

The present invention can be implemented by a simple control program in the microcomputer 9 of FIG. 1, and the overall operation flow is shown in FIG. For example, when performing a digest operation on an optical disc having a track number of 13, the microcomputer recognizes the track number and controls the digest reproduction method.

FIG. 13 shows an example in which the total number of tracks is 13 and the maximum sub picture mode is 9 in the digest reproduction method of the optical disc. First, the total number of tracks of the optical disc is read out (S21), and then the entire tracks are read. When the number is greater than 9 (S22), if the total number of tracks is less than or equal to 9, a sub-screen display format selection step of selecting a display screen format corresponding to each track number is performed (S26).

If the total number of tracks is greater than 9, it is determined whether the track number after the search corresponds to a multiple of 9 + 1 (S23). If the track number corresponds to (multiple of 9 + 1), the next digest screen is prepared (S24).

Here, since the total number of tracks is 9 or more, the microcomputer 9 prepares to display the next digest screen. At this time, before displaying the next digest screen, the microcomputer 9 reads i (total track number-current track number). Determine if +1) is less than or equal to 9.

After the preparation of the next digest screen, if i (the total track number-the current track number + 1) is greater than 9 (S26), if (the total track number-the current track number + 1) is less than or equal to 9, The display screen format corresponding to the number of tracks is selected (S26).

If the track number does not correspond to (multiple of 9 + 1) or i is greater than 9, after selecting the sub-screen display format, the searched sub-screen is displayed (S27) and the searched sub-screen is displayed. After display, the next track is searched for (S28).

Next, it is determined whether the next track to be searched is greater than the total number of tracks, and if the number of tracks is greater than the total number of tracks, the program is terminated. .

After all, if the entire track is 13, 9 sub-screens are displayed on the first full screen, and the value of i becomes 4 in track 10, so the 4th sub-screen display format of FIG. 7 is selected and applied to the next digest screen. Will be displayed.

On the other hand, Figures 4 to 12 show the first to the ninth sub-screen display format at the time of digest output of the optical disk according to an embodiment of the present invention, wherein the maximum sub-screen display format number is 9, the maximum The subscreen display format number can be changed by the user.

First, FIG. 4 shows a display format of the first subscreen, in which one subscreen is displayed on the entire screen.

5 to 7 respectively show the second sub-screen display format and the fourth sub-screen display format, and the position of the sub-screen is based on the vertical center of the entire screen, and the size of the sub-screen is shown in FIG. Compared with each other, it is appropriately reduced in size, and the sub-screens are balanced, respectively.

8 to 12 show the fifth sub-screen display format and the ninth sub-screen display format, respectively, and the size of the sub-screen is further reduced as compared with the fourth diagram, and the sub-screens are balanced, so that the overall stability is overall. I can see that there is.

Meanwhile, in the second to eighth sub-screen display formats according to FIGS. 5 to 11, the size and position of the sub-screen may be appropriately changed according to the user, the screen format may be preset, and the user may It may also be set by pressure.

The optical disc digest method according to the present invention as described above can be sufficiently implemented by the control program of the Ampl decoder and the microcomputer, which supports the conventional digest function without adding any additional hardware. It is a useful invention that can provide a screen of.

Claims (6)

A digest reproduction method of an optical disc, comprising: a first step of reading a number of reproduction tracks of the optical disc; A second step of varying a plurality of sub picture sizes in correspondence with the number of tracks; And a third step of displaying the plurality of digest sub-screens at the set size. The method of claim 1, wherein the variation of the sub picture size is adjusted by an external input of a user. 2. The optical method as claimed in claim 1, wherein the third step further comprises the step of performing redo from the second step on the remaining tracks which are not displayed according to the magnitude of the number of read tracks and the maximum number of displayed sub-screens. How to play a digest of a disc. A digest reproduction method of an optical disc, comprising: a first step of reading a number of reproduction tracks of the optical disc; A second step of variably adjusting display positions of a plurality of sub-screens according to the number of tracks; And a third step of displaying the plurality of sub-screens at the adjusted position. 5. The method of claim 4, wherein the second step is adjusted to display positions of respective sub-screens preset based on the number of tracks read out. The method according to claim 4, wherein the predetermined display position is a position value of each sub-screen arranged and adjusted by the user to an arbitrary position corresponding to the number of tracks.