JP2001119669A - Video recording and reproducing device, and method for switching catch-up reproduction image screen used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video recording and reproducing device that can prevent the occurrence of an event, about which a user may feel sense of incongruity. SOLUTION: While a current broadcast program received from a broadcast reception section 1 is recorded into a storage device 3 via an input output control section 2, the recorded information is read and decoded by a reproduction section 4b and an image pattern display section 6 displays the video image via a smooth change-over control section 5. When the reproduction of the recorded image pattern catches up the current broadcast program and a switching instruction is received externally, the smooth changeover control section 5 switches smoothly the video image of the follow-up reproduction into a video image broadcast at present and an image screen display section 6 displays the video image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus and a method for switching a chase reproduction screen used therewith, and more particularly to display control of the recording / reproducing apparatus.

[0002]

2. Description of the Related Art Conventionally, when a recording / reproducing apparatus has a special reproducing function capable of simultaneously reproducing one program while recording it, and a storage device such as a magnetic disk, FIG.
As shown in FIG. 1, a broadcast receiving unit 1, an input / output control unit 2, a storage device 3, a video monitoring unit 21, a changeover switch 21
, A playback unit 4 and a screen display unit 6.

The chase reproduction in the recording / reproducing apparatus is a function of reproducing a previous portion while recording a program being currently recorded. It is also possible to perform reproduction to a point where recording is performed by fast forward reproduction or the like. I have.

More specifically, while recording the current broadcast received from the broadcast receiving unit 1 in the storage device 3 via the input / output control unit 2, the recorded information is simultaneously read and decoded by the reproducing unit 4. It is displayed on the screen display unit 6.

When a switching instruction is input from the outside when catching up to the current broadcast from the recording / playback screen, the changeover switch 21 switches from the chase playback video to the currently broadcasted video and outputs the same. The display screen of No. 6 switches from the chase playback video to the video currently being broadcast.

[0006]

In the above-described conventional recording / playback apparatus, the catch-up playback catches up with the current broadcast, and when switching from the chase playback video to the currently broadcasted video, the recording / playback screen and the current broadcast are displayed. There is a time lag with the screen. This occurs because it takes time to write the current broadcast to the storage device and to read the recorded information.

[0007] Therefore, when switching from the chase-reproduction video to the video currently being broadcast, there is a portion that is not being reproduced, and the display screen is reproduced without being smoothly switched. Events such as instantaneous appearance of a background or scene or unnatural behavior of a dynamic object occur, causing a problem that a viewing user has a sense of discomfort.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a recording / reproducing apparatus which can solve the above-mentioned problems and prevent occurrence of an event which makes a user feel uncomfortable, and a chase / reproduction screen switching method used therefor. It is in.

[0009]

SUMMARY OF THE INVENTION A recording / playback apparatus according to the present invention is a recording / playback apparatus having a special playback function capable of simultaneously playing back one program while recording it. Broadcast receiving means, storage means for recording a screen of a program received by the broadcast receiving means, and smooth switching for smoothly switching between a reproduction screen read from the storage means and a broadcast screen received by the broadcast receiving means. Control means; and screen display means for displaying a screen switched by the smooth switching control means.

[0010] A method for switching a chase reproduction screen of a recording / reproduction device according to the present invention is a method for switching a chase reproduction screen of a recording / reproduction device having a special reproduction function capable of simultaneously reproducing one program while recording. Smoothly switching between the reproduction screen read from the storage means for recording the screen of the program received by the broadcast receiving means for receiving the program and the broadcast screen received by the broadcast receiving means, and displaying the switched screen The information is displayed on the screen display means.

That is, in order to achieve the above object, the recording / reproducing apparatus of the present invention catches up with the current broadcast by the chase reproduction and smoothly changes the display screen when switching from the chase reproduction video to the currently broadcast video. A smooth switching control unit for switching is provided to prevent the occurrence of an event that makes the user feel uncomfortable, and to switch the display screen.

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a recording / playback apparatus according to a first embodiment of the present invention. FIG.
In the recording / playback apparatus according to the first embodiment of the present invention, a broadcast receiving unit 1, an input / output control unit 2, a storage device 3, playback units 4a and 4b, a smooth switching control unit 5, a screen display unit 6 is comprised.

The chase reproduction operation according to the present embodiment is performed by recording the current broadcast received from the broadcast receiving unit 1 to the storage device 3 via the input / output control unit 2 and simultaneously reading and reproducing the recorded information. The image is decoded by the unit 4b, and the image is displayed on the screen display unit 6 via the smooth switching control unit 5.

When a switching instruction is input from the outside, the smooth switching control section 5 smoothly switches from the chase playback video to the currently broadcast video, and displays the video on the screen display section 6.

FIG. 2 is a block diagram showing the configuration of the smooth switching control section 5 of FIG. 2, the smooth switching control unit 5 includes a screen writing control unit 51, a recording screen buffer 52, a broadcast screen buffer 53, and a display screen buffer 54.

The recorded video buffer 52 temporarily holds the reproduced video from the reproducing unit 4b,
3 temporarily holds the video currently being broadcast from the reproducing unit 4a.

At the time of the chase reproduction operation, the screen writing control section 51 first writes the video temporarily held in the recording screen buffer 52 as it is to the display screen buffer 54 and sends it out from the display screen buffer 54 to the screen display section 6. Is controlled as follows.

When a switching instruction is input from outside, the screen writing control unit 51 writes the video temporarily stored in the recording screen buffer 52 into the display screen buffer 54, and temporarily stores the video into the broadcast screen buffer 53 halfway. Control is performed so that the held video is written into the display screen buffer 54.

The screen writing control unit 51 controls the display screen buffer 54 such that the ratio of writing the video from the recording screen buffer 52 and the broadcast screen buffer 53 is gradually changed, so that the chase reproduction video is controlled. Is smoothly switching to the currently broadcasted video.

FIG. 3 is a diagram showing a method of switching the chase playback screen according to the first embodiment of the present invention. The chase reproduction screen switching method according to the first embodiment of the present invention will be described with reference to FIGS.

In the first embodiment of the present invention, the recording screen 11
To switch to the broadcast screen 13, the recording screen 11 → the first half of the switching 12a → the second half of the switching 12b → the broadcast screen 13
The display is switched to the broadcast screen 13 so as to slide while overlapping from the side of the screen of the recording screen 11 as shown in FIG.

The smooth switching control section 5 is provided with a recording screen buffer 52 for temporarily storing the video of the chase reproduction and a broadcast screen buffer 53 for temporarily storing the currently broadcasted video.

The switching operation of the smooth switching control unit 5 is performed by the recording screen buffer 52 and the broadcast screen buffer 5.
This is realized by changing the rate at which the video from No. 3 is written to the display screen buffer 54 so that the currently broadcast video slides over the video of the chase playback. As a result, it is possible for the user who is watching to recognize that the reproduced video has caught up with the current broadcast, and it is possible to view the display screen without discomfort.

FIG. 4 is a diagram showing a method of switching the chase playback screen according to the second embodiment of the present invention. The configuration of the recording and reproducing apparatus according to the second embodiment of the present invention is the same as that of the recording and reproducing apparatus according to the first embodiment of the present invention shown in FIG. As shown in FIG. Therefore, a method of switching the chase playback screen according to the second embodiment of the present invention will be described with reference to FIGS. 1, 2 and 4.

In the second embodiment of the present invention, when the recording screen 11 is switched from the recording screen 11 to the broadcast screen 13, the recording screen 11 changes the page as in the recording screen 11, the first half of switching 14a, the second half of switching 14b, and the broadcasting screen 13. Switching is performed so that the broadcast screen 13 is displayed so as to be turned over and the broadcast screen 13 is displayed from below.

The smooth switching control section 5 is provided with a recording screen buffer 52 for temporarily holding the video of the chase reproduction and a broadcast screen buffer 53 for temporarily holding the currently broadcasted video.

The switching operation of the smooth switching control section 5 is such that the currently broadcast video is superimposed on the chase playback video, and the page of the chase playback video is turned using a known alpha blending method. The triangular shape is erased and made transparent, and the writing of the video from the recording screen buffer 52 and the broadcast screen buffer 53 to the display screen buffer 54 is controlled so that the video currently being broadcast is displayed in the transparent portion. As a result, it is possible for the user who is watching to recognize that the reproduced video has caught up with the current broadcast, and it is possible to view the display screen without discomfort.

FIG. 5 is a diagram showing a method of switching the chase playback screen according to the third embodiment of the present invention. The configuration of the recording / reproducing apparatus according to the third embodiment of the present invention is the same as that of the recording / reproducing apparatus according to the first embodiment of the present invention shown in FIG. 1, and the configuration of the smooth switching control unit 5 is also the same as that of FIG. As shown in FIG. Therefore, a method for switching the chase playback screen according to the third embodiment of the present invention will be described with reference to FIGS. 1, 2 and 5.

In the third embodiment of the present invention, when switching from the recording screen 11 to the broadcast screen 13, the broadcast screen is displayed on the recording screen 11, such as the recording screen 11, the first half of the switching 15a, the second half of the switching 15b, and the broadcasting screen 13. 13 is gradually changed to double shooting, and switching is performed.

The smooth switching control section 5 is provided with a recording screen buffer 52 for temporarily holding the video of the chase reproduction and a broadcast screen buffer 53 for temporarily holding the currently broadcasted video.

The switching operation in the smooth switching control section 5 is to superimpose the currently broadcasted video under the video of the chase reproduction and gradually make the video of the chase reproduction transparent by using a known alpha blending method. breath,
As a result, the recording screen buffer 52 and the broadcast screen buffer 53 are displayed so that the video currently being broadcast is gradually displayed.
Is written into the display screen buffer 54. As a result, it is possible for the user who is watching to recognize that the reproduced video has caught up with the current broadcast, and it is possible to view the display screen without discomfort.

FIG. 6 is a diagram showing a method of switching a chase playback screen according to a fourth embodiment of the present invention. The configuration of the recording and reproducing apparatus according to the fourth embodiment of the present invention is the same as that of the recording and reproducing apparatus according to the first embodiment of the present invention shown in FIG. As shown in FIG. Therefore, a method for switching the chase playback screen according to the fourth embodiment of the present invention will be described with reference to FIGS. 1, 2 and 6.

In the fourth embodiment of the present invention, when switching from the recording screen 11 to the broadcast screen 13, the recording screen 11 → the first half 16a of the switching → the middle 16b of the switching → the second half 16c of the switching → the second half of the switching → the broadcast screen 13 The screen 11 is gradually white-out and disappears. Thereafter, the broadcast screen 13 is white-in and switching is performed.

The smooth switching control section 5 is provided with a recording screen buffer 52 for temporarily holding the video of the chase reproduction and a broadcast screen buffer 53 for temporarily holding the currently broadcasted video.

The switching operation in the smooth switching control section 5 is performed by displaying a chase reproduction image and gradually whitening the chase reproduction image by using a known alpha blending method to completely white out the image. ,
The writing of the video from the recording screen buffer 52 and the broadcast screen buffer 53 to the display screen buffer 54 is controlled so that the currently broadcast video is gradually displayed. As a result, it is possible for the user who is watching to recognize that the reproduced video has caught up with the current broadcast, and it is possible to view the display screen without discomfort.

As described above, when switching from the recording screen 11 to the broadcast screen 13 to catch up with the current broadcast by the chase playback, the screen is switched via the smooth switching control unit 5 so that the screen on the screen display unit 6 is smooth. To the user who is watching and catching up, so that the user does not feel uncomfortable at the time of switching. Therefore, it is possible to prevent occurrence of an event that causes the user to feel uncomfortable.

[0037]

As described above, according to the present invention, 1
In a recording / playback apparatus having a special playback function capable of simultaneously playing back while recording two programs, a playback screen read from storage means for recording a screen of a program received by a broadcast receiving means for receiving a program And smoothly switching between the broadcast screen and the broadcast screen received by the broadcast receiving means, and displaying the switched screen on the screen display means, thereby preventing occurrence of an event that makes the user feel uncomfortable. There is.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a recording and playback device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a smooth switching control unit in FIG. 1;

FIG. 3 is a diagram showing a chase playback screen switching method according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a chase playback screen switching method according to a second embodiment of the present invention.

FIG. 5 is a diagram showing a chase playback screen switching method according to a third embodiment of the present invention.

FIG. 6 is a diagram illustrating a chase playback screen switching method according to a fourth embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a conventional recording / playback apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 broadcast receiving unit 2 input / output control unit 3 storage device 4 a, 4 b playback unit 5 smooth switching control unit 6 screen display unit 51 screen writing control unit 52 recording screen buffer 53 broadcast screen buffer 54 display screen buffer

Claims (12)

[Claims] 1. A recording / playback apparatus having a special playback function capable of simultaneously playing back one program while recording a program, wherein the broadcast receiving means receives the program, and the broadcast receiving means receives the program. Storage means for recording the screen of the program, a smooth switching control means for smoothly switching between the reproduction screen read from the storage means and the broadcast screen received by the broadcast receiving means, and a smooth switching control means for switching the broadcast screen. And a screen display means for displaying a screen. 2. The smooth switching control means includes: first holding means for holding a playback screen read from the storage means; and second holding means for holding a broadcast screen received by the broadcast receiving means. A third holding means for holding a screen on the screen display means, and a writing control means for controlling writing of the screen held by the first and second holding means to the third holding means. 2. The method according to claim 1, wherein
The recording / playback apparatus according to the above. 3. The system according to claim 1, wherein the smooth switching control means displays the broadcast screen received by the broadcast receiving means so as to slide on the reproduction screen read from the storage means while sliding upward from a side of the screen. 3. The recording / reproducing apparatus according to claim 1, wherein: 4. The smooth switching control means is configured to display a reproduction screen read from the storage means so as to turn a page, and to display a broadcast screen received by the broadcast reception means from therebelow. The recording / reproducing apparatus according to claim 1 or 2, wherein: 5. The smooth switching control means receives the broadcast screen received by the broadcast receiving means so as to gradually replace the broadcast screen received by the broadcast receiving means with a reproduction screen read from the storage means. 3. The recording / reproducing apparatus according to claim 1, wherein the broadcast screen is displayed. 6. The smooth switching control means is configured to white out and erase a reproduction screen read from the storage means, and thereafter display a broadcast screen received by the broadcast receiving means in a white-in manner. 3. The recording / reproducing apparatus according to claim 1, wherein: 7. A chase reproduction screen switching method for a recording / reproducing apparatus having a special reproduction function capable of simultaneously reproducing one program while recording one program, wherein the method is performed by a broadcast receiving means for receiving the program. The present invention is characterized in that the playback screen read from the storage means for recording the screen of the program and the broadcast screen received by the broadcast receiving means are smoothly switched, and the switched screen is displayed on the screen display means. Chase playback screen switching method. 8. A storage unit for storing a reproduced screen read from the storage unit, a second storage unit for storing a broadcast screen received by the broadcast receiving unit, And third holding means for holding a screen, wherein the third holding means holds the screen held by the first and second holding means.
8. The chase reproduction screen switching method according to claim 7, wherein writing to said holding means is controlled to smoothly switch between said reproduction screen and said broadcast screen. 9. The broadcast screen received by the broadcast receiving means so as to slide while overlapping from the side of the screen of the reproduced screen read from the storage means when smoothly switching between the playback screen and the broadcast screen. 9. The chase playback screen switching method according to claim 7 or 8, wherein is displayed. 10. When smoothly switching between the playback screen and the broadcast screen, a playback screen read from the storage means is displayed as if turning pages, and a broadcast received by the broadcast receiving means from below. 9. The chase reproduction screen switching method according to claim 7, wherein a screen is displayed. 11. When the switching between the playback screen and the broadcast screen is smoothly performed, the broadcast screen received by the broadcast receiving means is gradually replaced with the playback screen read from the storage means. 9. The chase playback screen switching method according to claim 7, wherein the broadcast screen received by the broadcast receiving means is displayed. 12. When smoothly switching between the reproduction screen and the broadcast screen, the smooth switching control means includes:
9. The broadcast screen read from the storage means is white-out and erased, and thereafter the broadcast screen received by the broadcast receiving means is displayed in white-in. Chase playback screen switching method.