JP2004096587A - Broadcasting program recording and reproducing device and broadcasting program recording and reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely confirm the contents of a program recorded in a recording medium. <P>SOLUTION: The video signals of the program recorded in a video / audio recording meas 13 are divided and extracted at a prescribed timing in an image capture / compression means 20 and extracted image information is compressed so as to display two or more pieces of the image information on one screen and time-sequentialy and successively stored in a small screen information storage means 21. Also, the image information sent following each extracted image information is similarly compressed so as to display two or more pieces of the image information on one screen and stored in the small screen information storage means 21. Small screen information stored in the small screen information storage means 21 is read, two or more pieces of the image information are displayed on one screen and the display of the image information is updated further. Thus, the contents of the recorded program are surely confirmed in a short time. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a recording / reproducing apparatus for a broadcast program, and more particularly to a recording / reproducing apparatus and a recording / reproducing method for a broadcast program capable of easily and surely confirming recorded program contents.
[0002]
[Prior art]
Conventionally, as a device for recording a broadcast program, a VTR (Video Tape Recorder) is generally used, but in recent years, an HDD (Hard Disk Drive) has an increased access speed and an increased recording capacity. As a result, a broadcast program recording / reproducing apparatus using an HDD as a recording medium is being commercialized.
[0003]
In a device to which the HDD is applied as a recording medium, a long-time broadcast program can be recorded, and a program is received for a predetermined period instead of using a VTR to select a program to be recorded by recording reservation. It is anticipated that the broadcast program of the channel will be recorded as it is, and then used later, such that only the program desired to be viewed is selected and viewed.
[0004]
Viewers need to display a huge number of programs recorded on the HDD using a function such as fast-forward playback to check the contents and select a program that the user really wants to watch, and the recording capacity increases. The more time is required for the work, the more inconvenient the handling is.
[0005]
There has been a strong demand for confirming the program contents recorded on a recording medium in a short time, and various proposals have been made. For example, Japanese Patent Application Laid-Open No. 2002-27410 discloses that a representative screen is extracted from a video signal to be recorded and recorded on a recording medium, an evaluation value is assigned to the extracted screen, and a recording medium is determined based on the evaluation value. The proposal that thins out the number of representative screens recorded in the document is shown.
[0006]
The technique described in this document requires a process of thinning out a representative screen at the time of reproduction, which complicates the configuration of the device and does not allow for rapid operation. It is not necessarily the most suitable device for checking the content of a recorded program.
[0007]
[Problems to be solved by the invention]
As described above, conventionally, in a device for recording and reproducing a broadcast program, there is a request to confirm the content of the recorded program before reproduction, but there is no device that can satisfy the cost performance, and it is simpler. There is a long-awaited need for a device that can reliably check the recorded contents.
[0008]
SUMMARY An advantage of some aspects of the invention is to provide a recording / reproducing apparatus and a recording / reproducing method capable of confirming recorded contents with a simple configuration.
[0009]
[Means for Solving the Problems]
A broadcast program recording / reproducing apparatus according to the present invention includes: a storage unit having a plurality of storage areas each having a storage location of information corresponding to a display screen; A compressed video signal is stored in the same storage position of each of the plurality of storage areas of the storage means for a predetermined signal amount, and a video signal transmitted after the stored video signal is converted into a plurality of video images. Storage control for compressing the data so as to be displayed on the same display screen and sequentially storing a predetermined number of fields in a plurality of storage areas of the storage unit at the same position different from the position where the compressed video signal is stored; Means, and display means for reading the video signal stored in the storage means and displaying the video signal for each storage area.
[0010]
According to the present invention, a plurality of videos constituting a program are displayed on the same screen in chronological order, and a video subsequent to each of the plurality of displayed videos can be displayed on the same screen. And it can be surely confirmed.
The broadcast program recording / playback apparatus of the present invention divides the time from the start to the end of a broadcast of an input broadcast number into n storage units each having a plurality of storage areas each having a storage position of information corresponding to a display screen. And compressing the video signal of the broadcast program so that n images are displayed on the same display screen, and time-sequentially storing the compressed video signal at the same storage location in each of the different storage areas for each of the divided times. And a display means for reading out the video signal stored in the storage means and displaying the video signal for each storage area.
[0011]
According to the present invention, a plurality of videos at predetermined time intervals of a program are displayed on the same screen in chronological order, and a video subsequent to each of the plurality of displayed videos can be displayed on the same screen. It can be confirmed in a timely and reliable manner.
The broadcast program recording / reproducing method of the present invention processes an input broadcast program video signal so that a plurality of videos are displayed on the same display screen, and stores the video signals in the same storage area of a plurality of storage areas of a storage medium. A predetermined signal amount is sequentially stored, and a video signal sent after the stored video signal is processed so that a plurality of videos are displayed on the same display screen, and a plurality of storage areas of the storage medium are Sequentially storing a predetermined number of fields in the same area different from the area where the video signal is stored, and reading the video signal stored in the storage medium and displaying the video signal for each storage area. It is characterized by the following.
[0012]
According to the present invention, a plurality of videos constituting a program are displayed on the same screen in chronological order, and a video subsequent to each of the plurality of displayed videos can be displayed on the same screen. And it can be surely confirmed.
According to the broadcast program recording / reproducing method of the present invention, the time from the start to the end of the broadcast of the input broadcast number is divided into n, and the video signal of the broadcast program is displayed so that n videos are displayed on the same display screen. Storing the compressed video signal in time series in the same storage area of each of the plurality of storage areas of the storage medium for each of the divided times; reading out the video signal stored in the storage medium and storing each in the storage medium Displaying the image for each area.
[0013]
According to the present invention, a plurality of videos at predetermined time intervals of a program are displayed on the same screen in chronological order, and a video subsequent to each of the plurality of displayed videos can be displayed on the same screen. It can be confirmed in a timely and reliable manner.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of a broadcast program recording / playback apparatus 10 according to the present invention.
The input terminal 11 is a terminal to which a recording audio signal is supplied, and the input terminal 12 is a terminal to which a recording video signal is supplied.
The audio signal supplied to the input terminal 11 is supplied to video / audio recording means 13 using an HDD as a recording medium. The video signal supplied to the input terminal 12 is also supplied to the video / audio recording means 13.
The video signal and the audio signal supplied to the video / audio recording means 13 are recorded in the video / audio recording means 13 under the control of the write / read control means 14.
In this recording operation, the control unit 16 determines a signal from the input unit 15 operated by the user, supplies a control signal to the write / read control unit 14, and controls the video / audio recording by the write / read control unit 14. This is executed by driving the means 13.
For the reproduction of the video signal and the audio signal recorded in the video / audio recording means 13, a control signal is supplied from the control unit 16 to the write / read control means 14 by a signal from the input means 15, and the write / read control means 14 This is executed when the video / audio recording unit 13 is driven.
[0015]
The video signal reproduced from the video / audio recording means 13 is supplied to a reproduction monitor 18 via a display selection means 17 and displayed on a display means such as a cathode ray tube. The audio signal reproduced from the video / audio recording unit 13 is supplied to the reproduction monitor 18 via the audio selection unit 19 and is output by an output unit such as a speaker.
[0016]
The configuration and operation for recording / reproducing described above are very general, and the present invention is based on the configuration and added with a configuration for confirming the contents of a recorded program.
That is, the video signal supplied to the input terminal 12 is supplied to the video / audio recording means 13 and also supplied to the image capture / compression means 20, where the program of the program recorded in the video / audio recording means 13 is An image of a specific scene is selected, and a compression process is performed so that the image of the first one field of each scene is displayed on the same screen, and is supplied to and stored in the small screen information storage unit 21. Further, the field images subsequent to the first field of each scene are similarly compressed so as to be displayed on the same screen and stored in the small screen information storage means 21. It continues until before the first field of each stored scene.
[0017]
The image selection of the specific scene by the image caption / compression means 20 is input by the operation of the input means 15, and the program broadcast time stored in the program broadcast time / number setting means 22 via the control unit 16 and the set number of images The timing is determined by the information.
[0018]
That is, the number of images that will be necessary for recognizing the content of the program is determined, and the timing for extracting the number of images is set. Is determined to be 30 in advance, the selection timing is a 2-minute cycle, and 30 images at 2-minute intervals are compressed and stored so as to be displayed on the same screen, and each of the 30 images is Then, the image of the next field is compressed and stored so as to be similarly displayed on the same screen.
[0019]
The user checks the broadcast time in advance using a newspaper or the like, and operates the input unit 15 to input the broadcast time of the program. The number of images to be extracted may be input by the user as a desired numerical value, or may be configured to be uniquely determined in relation to the broadcast time.
[0020]
The actual recording of the broadcast program may be executed by the user operating the input unit 15, or may be configured to be started by a well-known timer recording reservation unit (not shown).
Thereby, the recording of the program in the video / audio recording means 13 is started along the broadcast time of the program. Further, under the control of the control unit 16, the image capture / compression unit 20 extracts image information at a timing based on the information stored in the program broadcast time / number setting unit 22, and converts the image information into the set number of images. Is compressed so that the image is displayed on the same screen and output, and the image following each field image is similarly compressed and stored so as to be displayed on the same screen.
[0021]
The small-screen information compressed and output by the image capture / compression unit 20 is supplied to the small-screen information storage unit 21 and stored in the storage unit 21 under the control of the control unit 16.
The audio signal supplied to the input terminal 11 is guided to the audio compression unit 23, and under the control of the control unit 16, is subjected to a predetermined compression process by the audio compression unit 22 and is sent to the small-screen information storage unit 21. Supplied. The compressed audio signal supplied to the small screen information storage means 21 is stored at a predetermined address as audio information corresponding to the extracted image by a control signal from the control unit 16. The audio compression processing is, for example, a thinning-out processing, and is processed so that it can be recognized as audio even if read out as it is.
[0022]
The processing by the image capture / compression means 20 and the audio signal compression means 23 and the processing of storing the compressed signal in the small screen information storage means 21 are performed in parallel with the recording of the broadcast program in the video / audio recording means 13. It is.
FIG. 2 shows an image extraction timing in the image capture / compression unit 20 and a state in which the extracted image is compressed as small screen information and stored in the small screen information storage unit 21.
As shown in FIG. 2A, if the program is a one-hour program, 30 images are selected at two-minute intervals, and the extracted images are displayed on the reproduction monitor as shown in FIG. 2B. The image is compressed so as to be displayed at a size of 1/5 in the vertical direction of the screen and 1/6 in the horizontal direction, and stored in the small screen information storage means 21.
[0023]
The small-screen information storage means 21 has storage areas 1 to 7200 constituting a screen divided into 30 pieces. That is, when the number of the selected images is 30, the interval is 2 minutes, and the number of fields of 7200 is provided as the number of storage areas. In actual storage, the image of the first field of the first selected image among the images of the first two minutes is compressed and stored in the upper leftmost area of the storage area 1, and similarly, the next field is stored in the storage area 1. 2 and the next field is stored in the upper left area of the storage area 3. Next, similarly, each field is compressed and stored in the upper leftmost area of each storage area and stored in the last storage area 7200, whereby the storage of the first selected image is completed.
[0024]
Next, the first field of the second selected image is stored in the second area from the left of the first row of the storage area 1, and the next field is stored in the second area of the first row of the storage area 2 from the left. Then, the next field is stored in the second area from the left in the first row of the storage area 3, and when the storage to the last storage area 7200 is completed, the next third selected image is stored in the same manner.
[0025]
In this way, when the storage of the 30th selected image in the 7200 storage area is completed, all the one-hour broadcast programs have been stored.
FIG. 3 shows the relationship between the storage area and the stored field image.
FIG. 3A shows a first storage area 31 in which the first field (indicated as 1-1) of the first selected image is stored at the upper left, and the 30 fields are sequentially selected in the column and row directions. Each first field image (2-1 to 30-1) of the image is stored.
FIG. 3B shows the second storage area 32, in which the second field (1-2) of the first selected image is stored in the upper left area, and 30 selections are sequentially made in the column direction and the row direction. Each first field image (2-2 to 30-2) of the image is stored.
FIG. 3C shows a third storage area 33 in which the third field (displayed as 1-3) of the first selected image is stored in the upper left area, and 30 fields are sequentially stored in the column direction and the row direction. Are stored for each first field image (2-3 to 30-3).
FIG. 3D shows a 7200th storage area 37200 in which the third field (1-3600) of the first selected image is stored in the upper leftmost area, and 30 selections are sequentially made in the column direction and the row direction. Each first field image (2-7200 to 30-7200) of the image is stored.
[0026]
Next, a procedure for confirming the program content recorded in the video / audio recording means 13 based on the information stored in the small screen information storage means 21 will be described.
The user operates the input unit 15 to supply a request signal for outputting a small screen list to the small screen information storage unit 21 via the control unit 16. As a result, a signal having the content shown in FIG. 2B is output from the small screen information storage unit 21 and supplied to the display selection unit 17. At the same time as the request signal, a switching signal is supplied from the control unit 16 to the display selection unit 17 and the audio selection unit 19, and switching is performed so as to select a signal from the small screen information storage unit 21, respectively.
[0027]
As a result, the video signal output from the small screen information storage unit 21 is supplied to the display monitor 18 via the display selection unit 17 and displayed.
The display screen is the content itself stored in the first storage area 31 shown in FIG. 3A in the initial state, and the user operates the input unit 15 to supply a screen change request to the control unit 16. The image stored in the next second storage area 32 shown in FIG. 3B is displayed.
[0028]
Next, the storage contents of the third storage area 33 shown in FIG. 3C are displayed, and the images stored in the respective storage areas are similarly displayed sequentially.
The display screen may be switched by the user each time. However, only the first activation is performed by the user, and thereafter, the images stored in the respective storage areas are automatically read out at predetermined time intervals. You may comprise so that it may be displayed.
By continuously switching, it is possible to obtain a display screen substantially similar to the moving image of each selected screen.
Thus, the content of one program can be confirmed in 1/30 time.
It is also possible to link the recording of a program to the video / audio recording means 13 and the screen information of 30 in each storage area of the small-screen information storage means 21 by, for example, duration information from the start of recording. , And can be managed by the control unit 16.
Therefore, when the user selects a desired one of the displayed 30 images, the program recorded in the video / audio recording means 13 can be reproduced from the selected image portion.
Further, by selecting two desired images from among the 30 images, the sound between them can be read out from the small-screen information storage unit 21.
In the above description, the image has been described as being continuously stored in each storage area of the small-screen information storage unit 21 in units of fields. However, the image may be stored every other field. The time axis of the reproduced video signal thus reproduced is halved, which means that it is reproduced at double speed.
[0029]
At this time, if the audio signal stored in the small-screen information storage unit 21 is also compressed to １ ／, the audio that matches the reproduced video can be reproduced. As described above, according to the broadcast program recording device of the present invention, the programs recorded in the video / recording / reproducing means 13 can be viewed on the list screen at predetermined time intervals, and each list screen is updated as a moving image. Therefore, the recorded contents can be easily confirmed in a short time.
[0030]
FIG. 4 is a flowchart showing the operation described above.
In FIG. 4, the process is started in step 4a, program time information is set in step 4b, and the number m of images to be selected and the number n of fields of each selected image are set in step 4c.
Next, in step 4d, the initial value 1 is set to m and n, and in step 4e, the n (1) th field of the m (1) th selected image is captured and compressed. Next, in step 4f, the compressed image information is stored in the m (1) area of the n (1) -th storage area of the small screen information storage means 21.
[0031]
Next, 1 is added to n in step 4g, and it is determined in step 4h whether n has exceeded the maximum value. If not, in step 4e, n (2) of the m (1) -th selected image The second field is captured and compressed. Next, in step 4f, the compressed image is stored in the m (1) area of the n (2) th storage area. In step 4g, 1 is added to n. In step 4h, it is determined whether or not n exceeds the maximum value. If not, the process returns to step 4e to capture and compress the third field and store the n-th field. The storage in the area is performed.
[0032]
If it is determined in step 4h that n has exceeded the maximum number (7200 in the embodiments of FIGS. 2 and 3), n is set to 1 again in step 4i, m is added by 1, and the process returns to step 4e. , The n (1) th field of the m (2) th selected image is captured, compressed and stored in the m (2) area of the n (1) th storage area in step 4f.
[0033]
Thereafter, if it is determined in step 4j that m has exceeded the maximum value (30 in the embodiments of FIGS. 2 and 3), the process ends in step 4k.
In step 41, the broadcast program is recorded on the video / audio recording means, and when the recording for a predetermined period is completed, the process ends in step 4m.
FIG. 5 is a block diagram showing another embodiment of the program recording apparatus of the present invention. In the figure, the same components as those of the apparatus shown in FIG. 1 are denoted by the same reference numerals, and detailed description is omitted.
In the apparatus shown in FIG. 1, recording of a broadcast program in the video / audio recording means 13 and storage in the small-screen information storage means 21 are performed in parallel. After the recording to the video / audio recording means 13 is completed, the recorded program is reproduced, and the reproduced signal is image-captured and compressed by the image capture / compression means 20 and stored in the small-screen information storage means 21. Is also good. At the same time, the reproduced audio signal related to the captured image is compressed and stored in the small screen information storage means 21.
[0034]
In the recording / reproducing apparatus 50 shown in FIG. 5, the control is performed by the control unit 51, and the user controls them by operating the input unit 52.
In the apparatus shown in FIG. 5, the setting of the number of selected images and the number of fields of each selected image are set for the video signal reproduced from the video / audio recording unit 13 based on the flowchart shown in FIG. It can be stored in the small screen information storage unit 21.
[0035]
In the above description, the description has been made assuming that the user inputs the program time information from the input unit. However, if the program is provided by digital broadcasting, the broadcast start of the program is included in the broadcast signal. Since information indicating the configuration of the program such as the time and the broadcast end time is multiplexed and transmitted as additional information, it is possible to obtain the information from the additional information.
[0036]
As described above, according to the present invention, a video signal of a program recorded in a video / audio recording unit is selected at a predetermined timing, selected, and each selected image is compressed so that a plurality of scenes are displayed on one display screen. Is displayed and the field images following each selected image are compressed and sequentially stored so as to be displayed on one display screen, so that the stored images are displayed. By doing so, the content of one program can be confirmed in a short time, and each image can be displayed as if it were a moving image, so that the program content can be confirmed more reliably. It is something that will be.
[0037]
【The invention's effect】
As described above, according to the present invention, a recorded program is selected at predetermined time intervals, selected images are compressed and stored so that each image is displayed on one screen, and each selected image is stored. The following images are also compressed and stored so as to be displayed on one screen, so that the stored images can be reproduced so that the contents of the program can be confirmed in a short time. , It is possible to confirm the details of the program.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of a broadcast program recording / playback apparatus according to the present invention.
FIG. 2 is a view for explaining the operation of the apparatus shown in FIG. 1;
FIG. 3 is a diagram for explaining the operation of the device shown in FIG. 1;
FIG. 4 is a flowchart for explaining the operation of the apparatus shown in FIG. 1;
FIG. 5 is a block diagram showing another embodiment of the broadcast program recording / playback apparatus according to the present invention.
[Explanation of symbols]
10, 50 recording / reproducing device 11 audio signal input terminal 12 video signal input terminal 13 video / audio recording means 14 write / read control means 15, 52 input means 16, 51 control unit 17 display selection means 18 playback monitor 19 audio selection means 20 image capture / compression means 21 small screen information storage means 22 program broadcast time / number setting means 23 audio compression means

Claims (10)

Storage means provided with a plurality of storage areas corresponding to the display screen, each storage area is divided into a plurality of storage areas,
A video signal of an input broadcast program is processed so that a plurality of videos are displayed on the same display screen, and sequentially stored in the same storage area of each of a plurality of storage areas of the storage unit by a predetermined signal amount, A video signal transmitted after the stored video signal is processed so that a plurality of videos are displayed on the same display screen, and the video signal stored in a plurality of storage areas of the storage unit is stored. Storage control means for sequentially storing predetermined fields in the same storage area different from the area,
Display means for reading a video signal stored in the storage means and displaying the video signal for each storage area;
A broadcast program recording / reproducing apparatus comprising: The broadcast program recording / reproducing apparatus according to claim 1, wherein the predetermined signal amount is a predetermined field amount. 2. The broadcast program recording and reproducing apparatus according to claim 1, wherein the predetermined signal amount is specified by a signal amount in a predetermined time. 2. The broadcast program recording / reproducing apparatus according to claim 1, wherein the predetermined signal amount is specified by a storage capacity of a storage area. 2. The method according to claim 1, wherein the plurality of videos is a number obtained by dividing the broadcast program at a predetermined time interval, and the predetermined signal amount corresponds to the signal amount at the predetermined time interval. 3. Broadcast program recording and playback device. Storage means provided with a plurality of storage areas corresponding to the display screen, each storage area is divided into a plurality of storage areas,
The time from the start to the end of the broadcast of the input broadcast number is divided into n, and the video signal of the broadcast program is compressed so that n videos are displayed on the same display screen. Storage control means for storing in time series in the same storage area of each of the different storage areas for each of the divided times,
Display means for reading a video signal stored in the storage means and displaying the video signal for each storage area;
A broadcast program recording / reproducing apparatus comprising: 7. The broadcast program recording and reproducing apparatus according to claim 1, further comprising recording means for continuously recording the broadcast program. A video signal of a broadcast program to be input is processed such that a plurality of videos are displayed on the same display screen, and sequentially stored in the same storage area of each of a plurality of storage areas of a storage medium by a predetermined signal amount. A video signal sent after the stored video signal is processed so that a plurality of videos are displayed on the same display screen, and an area where the video signal is stored in a plurality of storage areas of the storage medium. Sequentially storing a predetermined number of fields in a different same area;
Reading a video signal stored in the storage medium and displaying the video signal for each storage area;
A method for recording and reproducing broadcast programs, comprising: The time from the start to the end of the broadcast of the input broadcast number is divided into n, the video signal of the broadcast program is compressed so that n videos are displayed on the same display screen, and the compressed video signal is Storing each of the plurality of storage areas of the storage medium in the same storage area in chronological order for each divided time;
Reading a video signal stored in the storage medium and displaying the video signal for each storage area;
A method for recording and reproducing broadcast programs, comprising: 11. The recording and reproducing method of a broadcast program according to claim 9, further comprising a step of continuously recording the broadcast program.

Images