Patent Grant
7031596
1. Field of the Invention
The present invention relates to a digital video reproduction method, a digital video reproducing (playing) apparatus and a digital video recording and reproducing (playing) apparatus. In particular the present invention is related to a digital video reproduction method, a digital video reproducing apparatus and a digital video recording and reproducing apparatus in which image reproduction can be started from a specific scene within the video contents.
2. Description of the Related Art
Conventionally, a video reproducing apparatus using magnetic tape as a recording medium is well known. With such video reproducing apparatus of magnetic tape method, information regarding contents recorded in a magnetic tape, for example information related to a scene that is peculiar to the event, is conventionally recorded by means of a spectator filling in a paper label and then attaching the paper label to the magnetic tape. During video reproduction, the spectator searched a desired image and by verifying the contents of the tape by looking at the paper label, fast-forwarding or rewinding the tape to a desired position and then reproduced the image.
On the other hand, nowadays with AV (audio-video) apparatuses becoming digital, random access storage such as a magnetic hard disk came to be adopted in video recording and reproducing apparatuses, thus originating an apparatus for saving video contents in a digital form. A capacity of a magnetic hard disk for saving video contents has become big, allowing recording of hours of video contents. In addition, information regarding the contents of recorded programs can be stored as electronic data and browsing of video contents, has become remarkably easy as compared to the case of a video recording and reproducing apparatus of magnetic type. In the U.S., companies such as TIVO and Replay TV sells such video recording and reproducing apparatus, so that search and reproduction of a spectator's desired image has been satisfied to some extent by employing such video recording and reproducing apparatuses.
In addition, with a DVD (Digital Versatile Disc) reproduction apparatus that have started to spread recently, which is an apparatus adopting random access storage, a set of contents is spliced beforehand into a number of episodes so that an episode can be reproduced promptly when the spectator wants to watch it.
However, in the conventional video reproducing apparatus of magnetic type, there is a problem of time spent in looking for a desired scene, as the spectator has to fast-forward and rewind the tape repeatedly during reproduction of the video when searching for the scene the spectator wants to see.
In a conventional video recording and reproducing apparatus having a random access storage, although it is possible to keep information on the contents related to a set of contents as a whole, information such as event information showing a particular scene included in the set of contents was not provided as an attribute of the contents. Therefore, in order to reproduce a desired scene in a video recording and reproducing apparatus of such type, for example, when reproducing video contents of a baseball match, if a spectator wishes to watch only a scene of a home run, it was necessity for the spectator to look for the desired scene by himself through fast-forwarding and rewinding in a similar way as the video reproducing apparatus of magnetic type. Such operation is inconvenient for the spectator and time consuming. Furthermore, by doing search by such operation of fast-forwarding or rewinding may cause overlooking of a relevant scene.
In spite of the fact that in a conventional DVD reproduction apparatus an episode in video contents is divided into each scene, as a scene is not determined by relevance of the event scene within the episode, in a similar way to a video reproducing apparatus of magnetic type and a video reproducing apparatus of a type having random access storage, it is not possible to easily jump onto a relevant event scene and reproduce it.
It is an object of the present invention to provide a digital video reproduction method, a digital video reproducing apparatus and digital video recording and reproducing apparatus in which it is possible to easily and precisely jump to a position of a scene that a spectator wants to watch, to then starting reproduction from such position.
According to a digital video reproduction method of the present invention, information on an event scene is stored as event information data and image is reproduced from an event scene using the event information data, so that data video contents can be easily reproduced from a desired event scene, when a spectator watches the video contents.
Similarly, according to a digital video reproducing apparatus of a first embodiment of the present invention, as image is reproduced from an event scene using stored event information data, video contents can be easily reproduced from a desired event scene, when a spectator watches video contents.
According to a digital video reproducing apparatus of a second embodiment of the present invention, video contents and event information data are received by a communications means and a means for controlling image reproduction, for at least reproducing image based on video contents and metadata, is provided. As the means for controlling image reproduction reproduces image from an event scene selected by a spectator by using the event information data, the video contents can be easily reproduced from a desired event scene, when a spectator watches the video contents by using the event information, without having to provide storage for the digital video reproduction apparatus.
According to a digital video recording and reproducing apparatus of a third embodiment of the present invention, there is provided a contents input means for inputting video contents, an event information data input means for inputting event information data and a storage means for storing the video contents and the event information data. The event information data is inputted as added to the video contents or separated from the video contents so that the video contents can be easily reproduced from a desired event scene when a spectator watches video contents, using not only specific event information data related to a single video content, but a variety of event information.
According to a digital video reproducing apparatus of a fourth embodiment of the present invention, a search means is provided for searching an event information data having an attribute selected from all event information data stored in a storage, through an operation by a spectator. As a result, it is possible to search and watch a desired event scene from all contents within the video storage, without being limited to a single video content. Accordingly, it is possible to provide a new and efficient video watching stile to the spectator.
According to another digital video reproduction method, another digital video reproducing apparatus and another digital video recording and reproducing apparatus of the present invention, a timeline corresponding to a reproduction time of video contents is displayed as a time bar on the display screen, an icon corresponding to each event scene is displayed in the starting position of an event scene on time bar, and an image is reproduced from the starting position of the event scene corresponding to the icon selected by the spectator. As a result, it is possible to easily make the starting position jump from a current playing position to a desired event scene, so that the spectator can start the reproduction of video image from the desired event scene.
In addition, according to another digital video reproduction method, another digital video reproducing apparatus and another digital video recording and reproducing apparatus of the present invention, when display becomes such that it is difficult for the spectator to distinguish icons, a fixed area including a selected point on the time bar is displayed as an expanded time bar, so that the expanded time bar displays only icons corresponding to the event scene included in such fixed area. As a result, when the time bar is expanded, for example, by means of an operation of a remote controller, it is possible to browse icons that cannot be displayed at once.
Still, according to another digital video reproduction method, another digital video reproducing apparatus and another digital video recording and reproducing apparatus of the present invention, when display becomes such that it is difficult for the spectator to distinguish icons, a reproduction time partition is defined on a timeline corresponding to the whole reproduction time, a scrolling time bar corresponding to the selected reproduction time partition is displayed and an icon corresponding to an event scene included in the selected reproduction time partition is displayed on the scrolling time bar. As a result, when the time bar is scrolled, for example, by means of an operation of a remote controller, it is possible to browse icons that cannot be displayed at once.
Moreover, another digital video reproduction method, another digital video reproducing apparatus and another digital video recording and reproducing apparatus of the present invention, when display becomes such that it is difficult for the spectator to distinguish icons, a time bar is displayed split in plural and non linear partitions, so that a displayed time density is minimum for the partition selected by the spectator and becomes higher for a partition located far from such selected partition, and an icon corresponding to the event scene included in each partition is displayed only to the extent that the displayed icons do not overlap within each partition during display on screen. As a result, it is possible to display an icon for only a portion that the spectator is interest in, so that the spectator can browse information on event scenes throughout all video contents efficiently and, furthermore, the spectator can easily jump to a starting position of a scene of his choice.
The foregoing and other objects, features and advantages of the present invention will be apparent to those skilled in the art from the following description of the preferred exemplary embodiments of the present invention taken in conjunction with the accompanying drawings, in which:
A digital video recording and reproducing apparatus according to a first preferred embodiment of the present invention is described based on
In addition, in the digital video recording and reproducing apparatus 1, a tuner 16, an external input portion 17, an MPEG encoder 18 and a multiplex data extraction circuit 19 are established. The tuner 16 and the external input portion 17 are connected to the MPEG encoder 18 so that, when recording video contents, the video signal inputted from the tuner 16 or the external input portion 17 is encoded at the MPEG encoder 18. Further, the tuner 16 and the external input portion 17 are connected to the multiplex data extraction circuit 19, so that, along with the video signal, the tuner 16 or an event information data inputted from the external input portion 17 are extracted from inside the multiplexed video signal by means of a VBI (Vertical Blanking Interval) method at the multiplex data extraction circuit 19. The MPEG encoder 18 and the multiplex data extraction circuit 19 are connected to the storage 11, so that the event information data and the encoded video signal are stored in storage 11.
In addition, in the digital video recording and reproducing apparatus 1, a MPEG decoder 20, an sound effect generation circuit 21, a VRAM 22, a CRT output port 23, an audio signal processing circuit 24 and an video signal processing circuit 25 are provided. The audio signal process circuit 24 and the video signal processing circuitry 25 are connected to the MPEG decoder 20 and the MPEG decoder 20 is connected to the RAM 13. Still, the RAM 13 is connected to the storage 11. When reproducing the digital video contents saved in the storage 11, the video data to which the video contents are stored in is loaded into the RAM 13 and sent out to the MPEG decoder 20. In the MPEG decoder 20, the video data is decoded in video soundtrack signal and video image signal, the video soundtrack signal and the video image signal are each outputted to the audio signal processing circuitry 24 and the video signal processing circuit 25. The audio signal processing circuit 24 and the video signal processing circuit 25 are respectively connected to a loud speaker and a display (not shown in the figure), so that the audio signal circuit 24 sends out a video soundtrack signal to the loud speaker and the video signal processing circuit 25 sends out video image signal to the display.
The sound effect generation circuitry 21 is connected to the CPU 12 and the audio signal processing circuitry 24. In addition, the CPU 12 is connected to the VRAM 22, the VRAM 22 is connected to the CRT output port 23. Furthermore, the CRT output port 23 is connected to the video signal processing circuit 25. During reproduction of the digital video contents, when the CPU 12 recognizes an operation command from the remote control signal 2, the CPU 12 instructs the sound generation circuit 21 to generate an sound effect such as a sound effect tone to show that an operation of the remote control signal 2 is done. The sound effect generation circuitry 21 generates an sound effect signal and sends it out to the audio signal processing circuit 24. The audio signal processing circuit 24 synthesizes the video sound signal and the sound effect signal and sends them out to the speaker. Moreover, a user interface image is generated in the VRAM 22 upon processing by CPU 12. The CRT output port 23 converts the image data on the VRAM 22 to a secondary image signal, and then sends the data out to the video signal processing circuit 25. The secondary image signal generated by the CRT output port 23 is combined with the video image signal from the MPEG decoder 20 in the video signal processing circuit 25 and sent out to the display which is not shown in the figures.
In addition, a modem 26, connected to a communication line not illustrated, is provided in the digital video recording and reproducing apparatus 1, for communication with the outside and for controlling communication. The digital video recording and reproducing apparatus 1 can receive event information data and video contents through the modem 26.
A plurality of buttons such as a left direction button 2A, a right direction button 2B, an enter button 2C and a time bar button 2D are established on the remote controller 2 as shown in
An event information data 3 is metadata related to one set of video contents. As shown in
The event information data 3 is made by a broadcasting station and transmitted multiplexed with a television broadcasting signal, the transmitted television broadcasting signal being received by the tuner 16 in the digital video recording and reproducing apparatus 1. In addition, the television broadcasting signal can be introduced to the digital video recording and reproducing apparatus 1 by way of a communication path such as, for example, from the broadcasting station to the Internet, through the modem 26. The event information data 3 can be also made in the broadcasting station and in a service facility of a third party other than the spectator, and introduced to the digital video recording and reproducing apparatus 1 through the communication path of the Internet. Moreover, the event information data 3 can be added as corresponding to a desired event scene while the spectator watches a video image based on the video contents and, still, the event information data 3 can be made by means of an automatic event searching computer software stored in the storage 11. Further, although it is possible for the digital video recording and reproducing apparatus 1 to store the event information data 3 together with the video contents data in the storage 11, it is also possible to separate the event information data 3 regarding all video contents, from the video contents data within the storage 11, thus storing as unified in another separate area in the storage 11.
Next, a description of a display of the time bar using the event information data is provided below. When a spectator pushes the time bar button 2D on the remote controller 2 during reproduction of a video image, a time bar display is performed. As shown in
When a time bar display processing is performed, a time bar 100 and a plurality of an icon is displayed in a lower portion of a video image screen, as shown in the example of a time bar for a soccer game in
When the spectator pushes the right direction button 2B of the remote controller 2 at the scene shown in
When all icons cannot be displayed on the time bar 100 to an extent that the spectator can recognize each icon because there is a great amount of icons to be displayed on the time bar 100, a process is done in which one partition of the time bar 100 is magnified and re-displayed over the whole time bar. As shown in
From the process of expanding and re-displaying, the time bar 200 and plural icons are displayed, as shown in
When the enter button 2C of the remote controller 2 is pushed by the spectator when the cursor 103 is on either of icons 104, 105, 106 or 107, the current video reproduction is interrupted, and a process of jumping onto an event scene corresponding to the icon on which the cursor 103 is located is started. For example, upon pushing the enter button 2C when the icon 104 is selected by the cursor 103 as shown in
When the spectator pushes the enter button 2C with the cursor 103 located in a position of a triangle-shaped icon 109 for easy jumping command, located in the vicinity of a left end portion of the time bar 100, the current video reproduction is stopped, and a process similar to the above-mentioned jumping and reproduction process is performed. An aspect which is different from the above-mentioned process is that reproduction is started from an event scene on the time bar 100 corresponding to a nearest icon displayed righter than the current playing position. Therefore, instead of setting the event number for the event information data 3 corresponding to the icon 104 selected by the spectator in the step S20 of FIG., the event number is set for the event information data 3 on the time bar 100 corresponding to the nearest icon 104 that is displayed in a location that is righter than the current playing position. Apart from that, other procedures are the same as the above-mentioned process of jumping and playing.
As only a predetermined icon corresponding to an event scene included within a partition selected by the spectator is displayed on the time bar, browsing can be done for icons that cannot be thoroughly displayed, upon having the spectator magnifying and re-displaying the time bar upon operation of the remote controller 2.
According to the digital video recording and reproducing apparatus 1 of the first preferred embodiment of the invention, by means of an application program loaded in the storage 11, searching of a desired event within all contents can be done can be done by event attribute 32 or event keyword 33, using the event information data 3 corresponding to all contents in the storage 11. In such search process, as shown in
Next, a digital video recording and reproducing apparatus according to a second preferred embodiment of the invention is described based on
When all icons cannot be displayed on the time bar 100 to an extent that the spectator can recognize each icon because there is a great amount of icons to be displayed on the time bar 100, a time bar 100 corresponding to the whole reproduction time of the video contents is not displayed and instead, a scrolling time bar 300 (see
As shown in
In the event of such display process, the process shown in the flowchart of
When all the event icons cannot be displayed on the time bar, the time bar is set so as to cover one partition within the whole reproduction time of the video contents, so that the spectator scrolls the time bar through the operation of the remote controller 16, thus allowing browsing of icons that cannot be displayed so far.
A digital video reproducing apparatus according to a third preferred embodiment of the present invention is described below based on
When all icons cannot be displayed on the time bar 100 to an extent that the spectator can recognize each icon because there is a great amount of icons to be displayed on the time bar 100, a non linear time bar 400 (see
In such non linear time bar 400, as shown in
When all the event icons cannot be displayed on the time bar, as only predetermined icons are displayed, only icons related to a place in which the spectator is interested in is displayed in detail, so that the spectator can browse information on event scenes throughout the entire video contents more effectively, so that the spectator can jump easily to a scene of his interest.
Finally, the configurations and structures of respective units and portions described specifically with respect to the preferred embodiments of the present invention are only examples of realization of the present invention, so the embodiments thereof should not be construed as to limiting the technical scope of the present invention.
A digital video reproducing apparatus of the present invention is not limited to the preferred embodiments described above, but many other variations and improvements are possible within the scope of the invention. For example, according to a variation of a digital video recording and reproducing apparatus of the present invention, as shown in
In addition, although the storage 11 of the digital video recording and reproducing apparatus 1 of the first embodiment of the present invention was comprised of a magnetic hard disc, instead of such magnetic hard disc, another recording medium of public knowledge such as a recordable DVD, a magnetic tape or the like can be used.
Still, although according to the first embodiment of the present invention the external communication line is a telephone line and the digital video recording and reproducing apparatus 1 is connected to the communication line through the modem 26, the external communication line can be of any kind such as a cable or a network cable of cable television line or the like, and a tuner or the like may be established in the digital video recording and reproducing apparatus, replacing modem 26 as a means for connecting the apparatus to the communication line.
In the digital video recording and reproducing apparatus according the present invention, it is possible to provide only an outside video signal input terminal as the video signal source for picture recording, without providing the television tuner 16.
In addition, the digital video recording and reproducing apparatus according to the present invention, both the video contents and the event information data can be downloaded by means of the modem 26, which is a communications means, and then stored in the storage 15, without providing the tuner 16, the MPEG decoder 20 and the multiplex data extracting circuit 19.
The video image may be reproduced under a high-speed communication environment using a video-on-demand (VOD). In such case, by means of first downloading all the event information data using the modem 26 as a communications means, the display of the time bar can be done by using the event information data, so that the spectator can watch the video contents through the digital video reproduction method according to the present invention. By doing that, a construction in which storage is not provided for in the digital video reproducing apparatus can be obtained. In addition, in such case, it is preferable to have a construction in which the event information data and the like are stored in the RAM 13.
The memory ROM 14 can be also used to store the operation system, a portion of the operating system or the application program.
The event starting position 31 can be also used for storing information showing an image frame number.
Although the event icon 34 contains image data prepared beforehand, a picture taken out from a video image based on the video contents may be instead stored as image data.
It is also allowed to provide some event scenes in common and icon data corresponding to such event scenes as fixed images for the digital video recording and reproducing apparatus, regardless of the video contents.
They event information data may also be used as a list for the event information data 3 and in this case, although specific event numbering is assigned to each event information data 3, such event numbering is not numbering corresponding in order of arrangement like in the descriptions of the preferred embodiments of the present invention.
The destination for the video signal synthesized by the video signal process circuit 25, as well as the audio signal synthesized by the audio signal process circuit 24, can be an appliance like a television receiver, replacing the display and the speaker that are not illustrated.
The digital video recording and reproducing apparatus based on the present invention may be comprised of an appliance the speaker and the display, such as a television receiver integrated to the digital video recording and reproducing apparatus of the first preferred embodiment of the present invention, as well as a personal computer having AV functions.
The storage 11 may be a non re-writing medium like a DVD and a video reproduction method according to the present invention can be realized using the video contents and the event information data recorded in such DVD.
Operations like shifting between displaying and non displaying of the time bar, as well as the operation of selection of an icon showing an event scene, can be done by using buttons other than the left direction button 2A, the right direction button 2B, the enter button 2C and the time bar button 2D on the remote controller 2 or still, by a menu displayed on the screen.
The time bar may still be displayed in a longitudinal, a diagonal or any other direction.
Although in the digital video recording and reproducing apparatus according to the first preferred embodiment of the present invention the vicinity of the current playing position is magnified and re-displayed upon the spectator selecting the icon 108, a zoom button may be provided for the remote controller 2 and, by means of pushing the zoom button, the vicinity of the icon corresponding to the event scene selected by the spectator is magnified and re-display. In addition, as the current playing position varies, the magnified and re-displayed area can be moved accordingly.
In the digital video recording and reproducing apparatus according to the second preferred embodiment of the present invention, although when scrolling towards either left or right or towards both sides is impossible, the scrolling arrow is not displayed in the direction towards which scrolling is disabled, it is also possible to make the color of the arrow in the direction towards which scrolling is disabled change to gray. It is also possible to move a portion to be displayed on the scrolling time bar according to a change in the current playing position.
In the present invention, when all the event icons cannot be displayed on the time bar, although according to the first to the third preferred embodiments of the present invention the three different display methods have been explained as been separated, those methods may be used in conjunction or, a single digital video recording and reproducing apparatus may be constituted so as to perform displaying by using two ways or more.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2000-107238 | Apr 2000 | JP | national |
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| 0890910 | Jan 1999 | EP |
| Number | Date | Country | |
|---|---|---|---|
| 20020012526 A1 | Jan 2002 | US |
