JP4748098B2 - Recording / reproducing apparatus and digest information generating apparatus - Google Patents

Description

  The present invention relates to a recording / reproducing apparatus and a digest information generating apparatus.

  In recent years, the recording capacity of recording / reproducing apparatuses has increased remarkably. For example, a large amount of information can be recorded / reproduced in a large capacity recording / reproducing apparatus such as an HDD recorder, a PC, or a home server. The same applies to the video camera, and the recording capacity of the recording medium is increased so that recording can be performed for a longer time than before. In some cases, a plurality of these recording / reproducing apparatuses are held in the home.

  In order to efficiently view a large amount of content or to confirm the content for selection, digest reproduction for reproducing a summary of the content is used.

  However, when a function for detecting a digest location necessary for digest playback is installed in all recording / playback apparatuses, each device may be expensive or the size of the device itself may increase.

  For example, in Patent Document 1, a technique has been devised in which digest information created by a third party is retrieved and acquired from a server via a network, and digest reproduction is realized based thereon.

Special table 2006-526337

  Although it is possible to obtain digest information of broadcasted programs via the network, digest information of all programs is not necessarily provided, and in the case of content recorded by a user with a video camera etc. Digest information is not provided.

  In order to solve the above-described problems, the present invention uses the configuration described in the claims as an example.

  According to the present invention, it is possible to provide a recording / reproducing apparatus capable of obtaining digest information and enabling digest reproduction even with a recording / reproducing apparatus having no digest information detection function.

  An example of an embodiment suitable for carrying out the present invention will be described. However, the present invention is not limited to this embodiment.

  FIG. 1 is a diagram showing an example of a digest information transmission / reception system 100 having an overall configuration according to the present invention. 101 is a digest information generation device. This digest information generation device is a device having a function of generating digest information, and may further have a function of recording a digital signal or a function of reproducing a digital signal.

  Reference numeral 102 denotes a system for transmitting / distributing audio / video data and information, and 103, 104, and 105 are recording / reproducing apparatuses capable of reproducing contents based on digest information. These recording / reproducing apparatuses may be recording / reproducing apparatuses having a receiving apparatus capable of receiving the video data transmitted by 102, such as 103 and 104, and recording / reproducing apparatuses without a receiving apparatus, such as 105. It may be.

  FIG. 2 is a block diagram showing an example of the 103 recording / reproducing apparatus of FIG. 1 according to the present embodiment. Here, the digital broadcast is received and recorded on the recording medium, and the recorded data is reproduced and reproduced and output. The recording / reproducing apparatus which can obtain is shown. Reference numeral 200 denotes a recording / playback apparatus, 201 denotes a user I / F, 202 denotes a system control unit, 203 denotes a broadcast reception unit, 204 denotes a recording medium, 205 denotes a recording / playback control unit, and 206 denotes a digest information acquisition control unit. Reference numeral 207 denotes a display unit, 208 denotes a network connection unit such as a LAN I / F, and 209 denotes a TV set.

The 201 user I / F accepts an instruction to record content, play back the recorded content, etc., for example, using a remote controller. Based on these instructions, the 202 system control unit controls the 203 broadcast receiving unit, 205 recording / playback control unit, 207 display unit, and the like.
The data received by the 203 broadcast receiving unit is sent to the 205 recording / reproduction control unit, and the 205 recording / reproduction control unit encrypts the data, for example, in the case of digital broadcasting, and records it on the 204 recording medium. The content recorded on the 204 recording medium is read by the 205 recording / playback control unit, de-encrypted, decoded, and sent to the 207 display unit. The 207 display unit superimposes OSD and the like and displays them on a TV or the like.

Also, when acquiring digest information, the 202 system control unit reads the content from the 204 recording medium through the 206 digest information acquisition control unit of the 205 recording / playback control unit, and transmits the data using 208 LAN I / F or the like. To do. Alternatively, digest information is acquired via the 208 LAN I / F, and is recorded on the 204 recording medium through the 206 digest information acquisition control unit.
When performing digest playback, the digest information held in the 204 recording medium is read from the 205 recording / playback control unit through the 206 digest information acquisition control unit, and is played back using the 205 recording / playback control unit.

  FIG. 3 is a block diagram illustrating an example of the 101 digest information generation apparatus of FIG. 1 according to the present embodiment. Here, in addition to FIG. 2 described above, a digest information generation function is added. The recording / reproducing control unit 205 of the recording / reproducing apparatus of FIG. 2 includes a 301 digest information control unit and a 302 digest information generation unit.

  Further, the digest information generating apparatus may not have the recording / reproducing function as shown in FIG.

  In the digest information generation device, based on data input through the 208 LAN I / F, the 301 digest information control unit of the 205 recording / playback control unit searches the digest information recorded on the 204 recording medium, and obtains the desired digest information. The data is transmitted to the requesting recording / reproducing apparatus through the 208 LAN I / F.

  In addition, digest data is generated by the 302 digest information generation unit using data input through the 208 LAN I / F. The generated digest information is recorded on the 204 recording medium, and is transmitted to the requesting recording / reproducing apparatus through the 208 LAN I / F.

  FIG. 4 is an example of a screen for selecting processing for target content in the 103 recording / playback apparatus (hereinafter, device 103). For example, reproduction / editing / digest information acquisition, digest editing, digest viewing, dubbing, deletion, and the like can be executed by selecting.

  Here, an example in which digest information acquisition is selected is shown.

  Thereby, digest information is acquired in the apparatus 103 without the digest information generation function.

  FIG. 5 shows a digest information acquisition flow.

In step 501, it is determined whether or not the 101 digest information generation device (hereinafter, device 101) is connected to the network. If not, the process proceeds to step 507 and ends. If it is connected, the process proceeds to step 502.
In step 502, content information is transmitted in order to confirm the presence / absence of digest information of the corresponding content.

  In step 503, the presence / absence of desired digest information is determined based on the response from the device 101. If the device 101 holds the corresponding digest information, the process proceeds to step 506. If the device 101 does not hold the corresponding digest information, the process proceeds to step 504.

  In step 504, the content is output from the device 103 to the device 101. After output, go to step 505.

  In step 505, the completion of digest information generation in the device 101 is awaited, and if completed, the process proceeds to step 506. If it has not been completed, it waits again for completion of digest information generation.

  In step 506, the digest information stored in the device 101 or the generated digest information is received, the process proceeds to step 507, and the process ends.

  FIG. 16 shows a confirmation screen when the digest information generation apparatus is not connected in step 501. Here, “living room” is a device name set by the user for the digest information generation apparatus. If the device 101 is connected on this screen, the process proceeds to step 501 again.

  FIG. 6 shows an example of the content information transmitted in step 502. (1) Device ID, (2) Program ID, (3) Program name, (4) Recording date and time. The device ID is an ID for determining a device connected on the network. The program ID is an ID for determining a program recorded in the device 103. The program name is the name of a broadcast / distributed content, or the title name created if recorded by a video camera. The recording date and time is the date and time when a program or content was recorded.

  FIG. 7 shows a digest reproduction flow in the device 103.

  This is the operation when digest playback is selected on the screen shown in FIG.

  In step 701, it is confirmed whether or not there is digest information of the corresponding content in the device 103. If the digest information is held, the process proceeds to step 702. If the digest information is not held, the process proceeds to step 501 where the device 101 generates and acquires digest information.

In step 702, a digest ID is selected. If there is no digest information, the process ends. Here, the case where there is no digest information may be, for example, the case where the device 101 is not connected and digest information cannot be acquired.
In step 703, the content is reproduced based on the selected digest information.

  FIG. 8 shows an example of the digest ID selection screen in step 702.

  Here, the percentage of the digest playback with respect to the original content is selected. In this example, 80%, 60%, 40%, and 20% are shown, but other ratios may be used to display and select how many minutes to digest playback, such as 30 minutes, 10 minutes, and 5 minutes. Also good.

FIG. 9 shows a digest information generation and transmission flow in the device 101.
In step 901, the content information transmitted in step 502 is acquired, and the process proceeds to step 1000.

In step 1000, the digest information of the designated content is searched.
In step 902, if there is digest information of the corresponding content as a result of the search, the process proceeds to step 905. If there is no digest information, the process proceeds to step 903.

In step 903, content is input from the device 103. In step 904, digest information is created, and the process proceeds to step 905.
In step 905, digest information is transmitted to the device 103.

  FIG. 17 shows an example of a confirmation screen on the device 101 when there is digest information of the designated content in step 1000. It is possible to display such a screen and confirm whether or not to acquire information from the user, or to acquire information without performing confirmation. Here, it is also possible to take the form of proceeding to step 905 if “yes” is designated, or proceeding to step 903 if “no” is designated.

  FIG. 18 shows an example of a confirmation screen on the device 101 when there is no digest information of the designated content in step 1000. Such a screen may be displayed and the user may confirm whether or not to create digest information with the device 103, or may proceed to step 903 without performing confirmation. Here, it is also possible to take the form of proceeding to step 903 if “yes” is designated and proceeding to step 906 if “no” is designated.

FIG. 10 shows a digest information search flow in the device 101.
In step 1001, the digest information matching (A) device ID in the digest information held in the device 101 and (1) device ID in the acquired content information is searched. If there is no matching information, the process proceeds to step 1003. If there is matching information, the process proceeds to step 1002.

In step 1002, the digest information whose (C) program ID in the digest information matches (2) the program ID in the content information is searched from the digest information whose device ID matches. If there is no matching information, the process proceeds to step 1003. If there is matching information, the process proceeds to step 1005 as [digest information: present] and ends.
In step 1003, instead of the digest information generated in response to the request from the device 103, the device 101 searches for digest information, for example, when a broadcast is received and digest information is generated. The (D) program name in the digest information held in the device 101 and the digest information that matches the (3) program name in the acquired content information are searched. If there is no matching information, [digest information: none] is determined and the process proceeds to step 1005. If there is matching information, the process proceeds to step 1004.

  In step 1004, from the digest information that matches the program name, search is made for digest information that matches (E) the recording date and time and (4) the recording date and time in the content information. If there is no matching information, [digest information: none] is determined and the process proceeds to step 1005. If there is matching information, [digest information: present] is set and the process proceeds to step 1005.

  FIG. 11 shows an example of content digest information generated by the device 101. (A) Device ID, (B) Device name, (C) Program ID, (D) Program name, (E) Broadcast / recording date, (F) Digest ID, (G) Digest position information.

  (B) A device-specific name is set as the device name. (F) Digest ID is an ID for determining digest information when creating a plurality of pieces of digest information for one content. (G) Digest position information has position information indicating which part should be reproduced when digest reproduction is performed. For example, in the case of digest ID = 1, the digest information is information that a section from 00:10 to 00:20 and 00:30 to 01:10 is a digest section. These (F) digest ID and (G) digest position information may be set as one set, and a plurality of pieces may be held in one content digest information.

  FIG. 12 shows the main part, digest ID, and digest position information. The shaded area is the digest section.

  The device 101 has digest position information that allows digests to be viewed in a digest of 80% when digest ID = 1. Digest ID = 2 has digest position information that allows content to be viewed together in a 60% digest. In this way, the fixed ratio may be 80%, 60%, 40%, or 20%, and these ratios may be changed in the setting of the device 101.

  A case where the digest edit button is selected on the screen shown in FIG. 4 will be described. From the digest information, set chapter points (or entry points, markers, etc. that serve as a bookmark to be set at the location of the content) to the target content, or a single or multiple scenes within the content Create a playlist that continuously plays As a result, there is no need to keep the digest information, so that the free space of the recording medium can be secured by deleting the digest information.

  FIG. 13 shows a flow for setting chapter points in content based on digest information.

In step 1301, which digest position information is to be used is selected on the screen as shown in FIG. 8, and the process proceeds to step 1302.
In step 1302, time information is acquired from the selected digest position information, and the flow advances to step 1303.

In step 1303, based on the time information acquired in step 1302, it is added as a chapter point to the content management information.
In step 1304, it is determined whether time information next to the time information acquired in step 1302 exists. If there is next time information, the process proceeds to step 1302.
If there is no information at the next time, the process proceeds to step 1305 and ends.

  FIG. 14 shows a state where chapter points are set based on the digest information. As an example, the case of digest ID = 2 in FIG. 12 was used. This is a portion that is reproduced when the shaded portion performs digest reproduction. By reproducing the chapter point instead of reproducing based on the digest information, it becomes easy to reproduce the section (D) while reproducing the section (B), for example. It is also easy to view a section (A) that could not be viewed during digest playback during playback of section (B).

  FIG. 15 shows a flow of creating a content playlist based on the digest information.

  In step 1501, digest position information is acquired, and the flow advances to step 1502.

  In step 1502, the start time and end time of the digest part are acquired from the digest position information, and the process proceeds to step 1503.

  In step 1503, it is added as content play list information from the start point to the end point, and the flow advances to step 1504.

  In step 1054, it is determined whether or not there is a next time information start point. If there is next time information, the process proceeds to step 1502. If there is no next time information, the process proceeds to step 1505.

  In step 1505, with reference to the digest ID, it is determined whether or not the next digest ID exists in the corresponding content. If there is a next digest ID, the process proceeds to step 1501. If there is no next digest ID, the process ends.

  As a result, it is possible to create a playlist that can be played back at 80%, 60%, 40%, and 20% of the original content.

  Also, when dubbing from a recording medium built in the recording / reproducing apparatus to a storage medium such as a BD or DVD, when reproducing the storage medium by copying the playlist information created based on the main story and the digest information. By playing the playlist, it is possible to perform digest playback even in a recording / playback apparatus that does not have a digest acquisition control unit, digest information generation unit, digest information control unit, or the like.

  When confirming whether or not the desired digest information exists in the device 101, the content information includes not only the information shown above, but also information such as detailed program details and recording time. Also good. In the case of content recorded by a video camera, for example, recorded location information may be included. The search accuracy is improved by performing a search in step 1000 together with these pieces of information.

  FIG. 19 shows a screen example during digest information generation for the device 101 on the device 103. Here, it is assumed that the device 103 is a device having a playback function and capable of displaying an image on a screen such as a TV. In the device 103, a message indicating that digest information of the content of the device 101 is being generated is displayed on the screen. This is not limited to the case in which digest information is being generated. If content data is being received from the device 101, a message such as “data is being acquired from“ my_room ”” is displayed, or digest information is generated. If completed, the message “Generation of digest information for“ day_drama ”of“ my_room ”has been completed” ”is displayed, and while the digest information is being sent to the device 101, the message“ my_room ”is displayed. A message such as “Sending digest information of“ daytime drama ”” may be displayed. The background screen at the time of outputting these messages may be a playback screen of content recorded by the device 103, a playback screen of content transmitted from the device 101, or other information on the device 103. If there is a broadcast reception function, it may be a video of the received content.

Digest information transmission / reception system Recording / playback device Digest information generator Process selection screen Digest information acquisition flow Content information Digest playback flow Digest playback process selection screen Digest information transmission flow Digest information search flow Digest information Digest position information Chapter point creation flow Digest playback location and chapter points Playlist creation flow Confirmation screen of digest information generator Digest information acquisition confirmation screen Digest information generation confirmation screen Screen for generating digest information

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Digest information generation apparatus 102 ... Audio | voice / video data, information delivery system 103 ... Recording / reproducing apparatus 201 ... User I / F
202 ... System control unit 203 ... Broadcast receiving unit 204 ... Recording medium 205 ... Recording / playback control unit 206 ... Digest information acquisition control unit 207 ... Display unit 208 ... LAN I / F
209… TV
301 ... Digest information control unit 302 ... Digest information generation unit

Claims (5)

A recording / reproducing apparatus for recording video / audio data on a recording medium and reproducing from the recording medium,
Means for communicating with the digest information generation device connected via a network;
Means for outputting recorded video / audio data to the digest information generating device;
Means for obtaining digest information from the digest information generating device;
Means for holding the obtained digest information;
A recording / reproducing apparatus comprising: means for reproducing video / audio data recorded based on the acquired digest information; or means for editing video / audio data recorded based on the acquired digest information. In means for editing video and audio data recorded on a recording medium based on the obtained digest information according to claim 1,
A recording / reproducing apparatus comprising means for adding chapter information to the video / audio data based on the obtained digest information. In means for editing video and audio data recorded on a recording medium based on the obtained digest information according to claim 1,
A recording / reproducing apparatus comprising means for creating a playlist of the video / audio data based on the obtained digest information. In means for editing video and audio data recorded on a recording medium based on the obtained digest information according to claim 1,
Characterized in that from said audiovisual data internal recording medium to the recording and reproducing apparatus, when dubbed to a recording medium such as an optical disc, which together with the video and audio data, based on the acquired digest information comprises means for adding the play list information A recording / reproducing apparatus. Means for communicating with a recording / reproducing apparatus connected via a network;
Means for receiving video / audio data from the recording / reproducing apparatus ;
Means for generating digest information including information on a position at which one or more reproductions used for digest reproduction are started and a position at which reproduction is terminated, from received video and audio data ;
Means for holding the digest information;
Means for transmitting the digest information to the recording / reproducing apparatus.

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