JPH07105925B2 - Disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video disc player, compact (CD-
V) A disc reproducing apparatus represented by a disc player or the like.

[Outline of Invention]

In the present invention, a plurality of BGV screen addresses are designated and stored in the second memory, and after the storage operation is completed, the screen of the address stored in the second memory is searched,
The operation stored in the first memory and displayed for a predetermined time is
Iteratively repeats for each address until a predetermined selection is made.

[Background technology]

In a CD-V disc, an audio signal is recorded in an audio area relatively inside thereof, and an audio signal and a video signal are recorded in a video area outside thereof. When playing this CD-V disc, the video area is played first, and the predetermined screen played there is stored in the memory,
BGV the screen stored in the memory when playing the audio area
The applicant has previously proposed to display as (background video) (Japanese Patent Application No. 61-232654).

[Problems to be solved by the invention]

However, this conventional proposal lacks consideration for the operation of selecting a desired screen for BGV while watching the playback display screen.

Therefore, the present invention is intended to improve operability by surely and easily selecting a screen for BGV (background video).

[Means for solving problems]

A disc reproducing apparatus of the present invention includes a demodulation circuit for demodulating a video signal reproduced from a disc, a first memory for storing at least one field of the video signal, and an input unit operated when performing a predetermined input. And when a selection operation is performed by the input means during screen reproduction of the video signal demodulated by the demodulation circuit, the address of the video signal during screen reproduction at the time of selection is determined according to the number of selection operations. A second memory to be stored as a memory, and after the operation of storing the address in the second memory is completed, the plurality of addresses stored in the second memory are sequentially searched and the video corresponding to these addresses is searched. Signals are sequentially output to perform screen reproduction, and when a selection operation is performed by the input means during screen reproduction of these video signals, the selected video is displayed. Signals stored in said first memory, characterized in that the said stored video signal and a control means for outputting as a BGV are provided.

[Action]

For example, a video (RF) signal reproduced from the video area of a CD-V disc is frequency-demodulated by a demodulation circuit and output. When the input means is operated when the screen to be stored as the BGV screen is played back, the address of that screen becomes the second
Stored in memory. When this operation is performed a plurality of times, the address is stored in the second memory each time.

When the video area reproduction mode ends, the first address stored in the second memory is searched and the video signal is stored in the first memory before the next transition to the audio area reproduction mode. The video signal stored in the first memory is immediately read out, output for a predetermined time and displayed. When the predetermined time has elapsed, the next address is searched and the corresponding video signal is stored and displayed. Such an operation is sequentially performed for the plurality of addresses stored in the second memory. The user sequentially views the screens that are output and displayed, and operates the input means when the screen that the user wants to use as the BGV is finally displayed. When this operation is performed, the contents of the first memory are fixed to it, and this screen is read and output as BGV during audio area reproduction.

〔Example〕

FIG. 1 is a block diagram of a compact (CD-V) disc player of the present invention. When the start of reproduction is input from the input means 15, the control circuit 13 including, for example, a microcomputer controls the drive circuit 17 to move the pickup 1 from the park position at the innermost circumference of the disc toward the video area. The detection circuit 18 outputs a predetermined detection signal to the control circuit 13 when the pickup 1 reaches the video area. When the detection signal is input, the control circuit 13 starts the reproduction of the video area from that position.

The reproduced RF signal output from the pickup 1 is input to the bandpass filter 2, where the FM video signal component is separated. The demodulation circuit 4 frequency-demodulates the FM video signal input from the bandpass filter 2. The output of the demodulation circuit 4 is supplied to a CRT or the like (not shown) via the switch 6 and displayed.

On the other hand, the low pass filter 3 separates the audio signal component from the output of the pickup 1. The demodulation circuit 5 EFM demodulates the output of the low pass filter 3. The output of the demodulation circuit 5 is input to the correction circuit 10 where it is subjected to processing such as dinterleaving and error correction. The output of the correction circuit 10 is input to the D / A conversion circuit 11, is D / A converted, and then output to a speaker or the like (not shown).

While the pickup 1 is reproducing the video area, the user operates a predetermined switch of the input means 15 at a desired position while watching the display screen. At this time, the control circuit 13 outputs a signal to the memory 8 such as a field memory or a frame memory. A video signal obtained by A / D converting the output of the demodulation circuit 4 by the A / D conversion circuit 7 is input to the memory 8, and the memory 8 outputs at least one video signal at the timing when the control signal is input from the control circuit 13. Memorize fields. At this time, the control circuit 13 turns on the flag which is turned off at the time of starting, and also controls the display means 16 including a lamp and an LED to display that the desired screen is stored.

By operating a predetermined switch of the input means 15, the switch 6 can be switched via the control circuit 13.
When the switch 6 is switched to the lower side in the figure, the video signal stored in the memory 8 is D / A converted by the D / A conversion circuit 9 and output. Therefore, a still image is displayed on the CRT or the like. If the switch 6 is switched to the upper side in the figure, the demodulation circuit 4
The video signal from is output as it is. Therefore, at this time, a normal moving image is displayed on the CRT or the like.

Also, during playback of the video area, when a screen desired to be BGV is displayed on the CRT or the like, a predetermined switch of the input means 15 is operated. At this time, in the control circuit 13, the reading circuit 12 has the demodulation circuit 4
The address (frame number) read from the output of RAM
Etc. are stored in the memory 14. This operation can be performed multiple times. As a result, the memory 14 has a plurality (for example, 5).
The frame number of is stored.

When the playback of the video area is completed, it is determined whether or not the flag is on, and when it is on (when at least one desired screen is stored), the frame number stored in the memory 14 is It is read and searched. That is, the control circuit 13 controls the drive circuit 17 to move the pickup 1 into the video area. The reading circuit 12 reads the frame number from the output of the demodulation circuit 4 and outputs the result to the control circuit 13. When the same frame number as the frame number stored in the memory 14 is detected, the control circuit
Reference numeral 13 controls the memory 8 to store at least one field of the video signal corresponding to the frame number. The stored video signal is immediately read out, D / A converted by the D / A conversion circuit 9, and then output via the switch 6.

If multiple frame numbers are stored in memory 14,
After one screen is output for a predetermined time (for example, several seconds),
The next screen is searched and the operation of outputting for a predetermined time is repeated. For example, five screens are displayed for 3 seconds and then the next screen is displayed, and the first screen is displayed after the last screen.

While the display screen is changing in this manner, if the predetermined switch of the input means 15 is operated at the timing when the desired screen is displayed, the search operation is terminated and the memory 8
The video signal of is fixed.

The control circuit when the video signal of the memory 8 is selected, or when the video signal is stored in the memory 8 if only one frame number is stored in the memory 14.
Reference numeral 13 controls the drive circuit 17 to drive the pickup 1 in the innermost circumferential direction of the disc to search the audio area. Detection circuit when the pickup 1 reaches the audio area
The detection signal is output from 18. At this time, the control circuit 13 controls the pickup 1 to reproduce the audio area.
The reproduced audio signal is output from the D / A conversion circuit 11 as in the case described above. In this way, while the video signal stored in the memory 8 is output, the signal in the audio area is reproduced.

When the reproduction of the audio area is completed, it is determined whether the flag is on or off. When the flag is on,
The state of waiting for input of the next reproduction start is entered, and the data stored in the memory 8 is not erased. Therefore, even if the disc is exchanged or the like, the screen once stored is read out and displayed in the audio area unless a new operation is performed.

When the flag is turned on (when the user does not store the screen during the video area reproduction), when the reproduction of the video area is completed, a predetermined address set in advance is searched. This address is stored in advance in the memory 14 when the player is manufactured. Of course, the address can be changed to a predetermined value by operating the input means 15. However, this address is the address of the video area.

During the search operation, the reading circuit 12 reads the frame number from the output of the demodulation circuit 4 and outputs the read result to the control circuit.
Output to 13. When the same frame number as the frame number stored in the memory 14 is detected, the control circuit 13 stores the video signal of that frame number in the memory 8.

Instead of storing a specific frame number in memory 14,
For example, it is possible to store the first frame of the video area, the frame of a predetermined track of the video area, and the like.

When the flag is on, the data in the memory 8 is erased when the reproduction of the audio area is completed. Therefore, for example, when the disc is exchanged, the screen displayed in the audio area also becomes a video signal from the disc after the exchange.

The above operation is shown in a flowchart of FIG.

The present invention can be applied to the case of reproducing a video disc. In this case, since the audio area does not exist, when the BGV video signal is designated, the next input is awaited.

〔effect〕

As described above, according to the present invention, a plurality of BGV screens are stored at addresses, and after a predetermined mode ends, a video signal at that address is searched, and the operation of storing and outputting to the memory is sequentially performed for each address. Since many screens are selected as candidates during normal reproduction, it is possible to finally narrow down to one screen after viewing all the screens. Therefore, it is possible to extract while checking the image to be selected as BGV, it is not necessary to mistakenly select a different image, and it is necessary to remember the storage location (address) of the image or write it on paper etc. Since the selection work can be performed reliably and easily, the operability can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of the disc player of the present invention, and FIG. 2 is a flowchart thereof. 1 …… Pickup 2 …… Bandpass filter 3 …… Lowpass filter 4,5 …… Demodulation circuit 6 …… Switch 7 …… A / D conversion circuit 8 …… Memory 9 …… D / A conversion circuit 10 …… Correction Circuit 11 …… D / A conversion circuit 12 …… Reading circuit 13 …… Control circuit 14 …… Memory 15 …… Input means 16 …… Display means 17 …… Driving means 18 …… Detection circuit

Front page continuation (72) Inventor Kenichiro Yasukawa 426-10 Hanazono, Tokorozawa, Saitama Prefecture Tokorozawa Plant, Pioneer Co., Ltd. (56) Reference JP 57-76653 (JP, A) JP 59-79691 (JP 59-69691) JP, A) JP 60-95759 (JP, A)

Claims (1)

[Claims] 1. A demodulation circuit for demodulating a video signal reproduced from a disc, a first memory for storing at least one field of the video signal, an input unit operated when performing a predetermined input, When a selection operation by the input means is performed during screen reproduction of the video signal demodulated by the demodulation circuit,
A second memory for storing the address of the video signal during screen reproduction at the time of selection according to the number of selection operations, and the second memory after completion of the operation of storing the address in the second memory. When the plurality of addresses stored in the memory are sequentially searched, the video signals corresponding to these addresses are sequentially output to perform screen reproduction, and when the screen reproduction of these video signals is performed by the input unit, a selection operation is performed. And a control unit for storing the selected video signal in the first memory and outputting the stored video signal as BGV.