JP2011181137A - Recording and reproducing device, reproducing device, recording method, reproducing method, and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing device, a reproducing device, a recording method, a reproducing method, and a computer program which share the appreciation of contents without the limitation of conditions such as connection to a network and the reproduction of the same titled contents in the same time zone, eliminate loads such as the aggregation, storage, and provision of comments to providers for rendering a content distributing service. <P>SOLUTION: The recording and reproducing device accepts additional data relating to the contents and records the accepted additional data on a hybrid disk C by being associated with a displayed image on a display device 4 upon accepting and an accepting time when recording the contents of the hybrid disk C, and displays the additional image (comments, for example) on the display device 4 based on the additional data along the accepting time and displayed image when reproducing the contents of the hybrid disk C. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a recording / reproducing apparatus, a reproducing apparatus, a recording method, a reproducing method, and a computer program for recording data on an optical disc or reading data from the optical disc.

  In general, optical disks include a read-only optical disk, a write-once optical disk capable of recording data only once, and a rewritable optical disk capable of erasing and re-recording recorded data.

  Also, so-called hybrid discs have been developed by combining these optical discs. Patent Document 1 rewrites information for reproduction only by mixing a first area in which optically reproducible information is provided and a second area in which a user can optically record and reproduce information. An optical disc medium capable of accessing the available information almost simultaneously is disclosed.

  On the other hand, recently, Blu-ray discs capable of recording large-capacity high-definition video have been widely used. Some Blu-ray discs have a so-called BD-Live (network connection function), and a new service using this mechanism is provided.

  For example, there is a so-called CINECHAT function that allows viewers who enjoy the content of the same title while watching the content recorded on a Blu-ray Disc to connect via a network and perform real-time chat on the screen. It is disclosed. By using the cine chat function, viewers can share appreciation for the content.

  Another content sharing service that can share appreciation for content is the Internet. In the content distribution service, viewers can freely write comments on the content, and the provider providing the service aggregates the comments and also provides the comments together when the content is distributed. is there.

JP-A-2-281437

  However, in the cine chat function of Patent Document 1 as described above, in order to share appreciation for content, it is necessary that the device is connected to the network, and that the content of the same title is in the same time zone. It is premised on the conditions such as watching.

  In the content distribution service described above, in order to share appreciation for content, it is indispensable that the device is connected to a network, and the provider collects, stores and provides comments in addition to content distribution. This burden will be taken for a long time.

  The present invention has been made in view of such circumstances, and an object thereof is to have a first layer in which data of image content is recorded and a second layer in which data can be written. Receiving means for receiving additional data relating to the image content when the image content is reproduced in a recording / reproducing apparatus for reading and reproducing the data of the image content from the optical disc, and recording the data in the second layer; And recording means for recording the additional data received by the receiving means on the second layer, and recording the received additional data on the second layer, thereby reproducing the contents of the optical disc, for example, An additional image (for example, a comment) based on the additional data in the second layer can be displayed together with the content, and connected to a network. For viewers who can share the appreciation of the content without being restricted by conditions such as playing the content with the same title at the same time, and for content distribution service providers Another object of the present invention is to provide a recording / reproducing apparatus, a recording method, and a computer program that can eliminate the burden of counting, storing, and providing comments.

  Another object of the present invention is to identify a first layer in which image content data is recorded, additional data related to the image content, time data representing a predetermined time, and any image of the image content. In a playback device that reads and plays back the data of the image content from an optical disc having a second layer recorded in association with the image specifying data to be played, from the second layer A superimposing unit that superimposes the additional data on an image corresponding to the read image specifying data, and a plurality of determining units that determine whether or not there are a plurality of additional data related to the predetermined image specifying data. When there are a plurality of additional data related to the image specifying data, the superimposing unit converts the plurality of additional data in time order based on the time data read from the second layer. When the contents of the optical disc are reproduced, the additional data and the image specifying data and time data corresponding to the additional data are read from the second layer, and, for example, an additional image based on the additional data ( For example, it is possible to superimpose comments) on the content data and display them together, without being limited to conditions such as being connected to the network and playing the content with the same title in the same time zone. Provide a playback device, playback method, and computer program that allow viewers to share appreciation of content and that can eliminate the burden of counting, storing, and providing comments for providers that provide content distribution services There is.

  A recording / reproducing apparatus according to the present invention reads and reproduces image content data from an optical disc having a first layer in which image content data is recorded and a second layer in which data can be written. On the other hand, in the recording / reproducing apparatus for recording data in the second layer, when reproducing the image content, a receiving unit that receives additional data related to the image content, and the additional data received by the receiving unit are stored in the second layer. And recording means for recording in the recording medium.

  In the present invention, when the image content of the optical disc is reproduced, the receiving unit receives additional data relating to the image content, and the recording unit receives the additional data received by the receiving unit. Record on layer.

  The recording / reproducing apparatus according to the present invention includes a time specifying unit that specifies a time when the receiving unit receives additional data, and the recording unit specifies an image that is reproduced when the additional data is received. The data is recorded on the second layer in association with the time data by the time specifying means.

  In the present invention, the additional data received by the receiving unit is associated with the image specifying data and time data specifying the time when the additional data is received, and the recording unit stores the second data of the optical disc. Recorded on the layer.

  The recording / reproducing apparatus according to the present invention comprises reproduction determining means for determining whether or not the image content is being reproduced. When the reproduction determining means determines that the image content is not being reproduced, the recording means The additional data is configured to be recorded on the second layer.

  In the present invention, when the reproduction determining unit determines that the image content is not being reproduced, the recording unit associates the additional data with the image specifying data and the time data, and the second layer of the optical disc. To record.

  The playback device according to the present invention specifies a first layer in which image content data is recorded, additional data related to the image content, time data representing a predetermined time, and any image of the image content. In a playback device that reads and plays back the data of the image content from an optical disc having a second layer recorded in association with the image specifying data to be played, from the second layer A superimposing unit that superimposes the additional data on an image corresponding to the read image specifying data, and a plurality of determining units that determine whether or not there are a plurality of additional data related to the predetermined image specifying data. When there are a plurality of additional data related to the image specifying data, the superimposing means converts the plurality of additional data into time based on the time data read from the second layer. Characterized in that that is configured to be superimposed on.

  In the present invention, when the plurality of determining means determines that there are a plurality of additional data relating to the predetermined image specifying data, the superimposing means is configured to generate the image based on the time data read from the second layer. The plurality of additional data is superimposed in time order on the image content image corresponding to the specific data.

  In the reproducing apparatus according to the present invention, when there are a plurality of additional data related to predetermined image specifying data, the superimposing means is configured to superimpose a part of the plurality of additional data, and the superimposing means When a part of the plurality of additional data is superposed, a number superimposing unit superimposing numerical data representing the number of unsuperimposed additional data is provided.

  In the present invention, when there are a plurality of additional data related to the predetermined image specifying data, the superimposing unit superimposes a part of the plurality of additional data on the image of the corresponding image content. In such a case, the number superimposing means superimposes the number data representing the number of additional data not superimposed on the image of the corresponding image content.

  The playback apparatus according to the present invention has received an instruction receiving unit that receives an instruction to superimpose all the additional data, and has received the instruction when a part of the plurality of additional data is superimposed by the superimposing unit. Instruction determining means for determining whether or not, and when the instruction determining means determines that the instruction has been received, the superimposing means is configured to superimpose all the additional data.

  In the present invention, when a part of the plurality of additional data is superimposed by the superimposing unit, the instruction indicating whether the instruction receiving unit has received an instruction to superimpose all the additional data It is determined by the determining means. When the instruction determination unit determines that the instruction receiving unit has received the instruction, the superimposing unit superimposes all the additional data on the corresponding image content image.

  The playback apparatus according to the present invention includes an acquisition unit that acquires external data related to the image content from the outside, and is configured such that the superimposition unit superimposes the additional data acquired by the acquisition unit on the image of the image content. It is characterized by being.

  In the present invention, the acquisition unit acquires additional data from the outside, and the superimposing unit superimposes the additional data on a corresponding image content image.

  According to the recording method of the present invention, the image content data is read from an optical disc having a first layer in which image content data is recorded and a second layer in which data can be written. In a recording method for recording additional data relating to the image content in the second layer in a recording / reproducing apparatus provided with time specifying means for recording data in the second layer and specifying time while reproducing the content, In the reproduction of the image content, the reception step for receiving the additional data, the additional data received by the reception step, the image specification data for specifying the image reproduced at the time of reception, and the time data by the time specification means And a recording step of recording on the second layer in association with each other.

  The computer program according to the present invention reads and reproduces the image content data from an optical disc having a first layer in which image content data is recorded and a second layer in which data can be written. The accepting means is provided in a computer constituting a recording / reproducing apparatus comprising accepting means for accepting additional data relating to the image content, recording means for recording data in the second layer, and time specifying means for specifying time. In the computer program for recording the received additional data in the second layer, the computer specifies the image specifying data for specifying the image reproduced at the time of receiving the additional data received by the receiving means, and the time by the time specifying means. A step of associating with the data, and an attachment received by the receiving means to the computer. Data, the image specifying data and the time data corresponding to the additional data the recording means, characterized in that it comprises a step of controlling to record.

  In the present invention, when reproducing the image content of the optical disc, the received additional data is associated with the image specifying data for specifying the image reproduced at the time of receiving, and the time data by the time specifying means, Recording on the second layer of the optical disc.

  The reproduction method according to the present invention specifies a first layer in which image content data is recorded, additional data related to the image content, time data representing a predetermined time, and any image of the image content. Reproduction method for reproducing the additional data in a reproduction apparatus that reads the image content data from the optical disc having the second layer recorded in association with the image specifying data to be reproduced The reproduction step of superimposing the additional data on the image corresponding to the image specifying data read from the second layer when reproducing the image content, and a plurality of additional data related to the predetermined image specifying data A plurality of determination steps for determining whether or not there is a plurality of additional data related to the predetermined image specifying data, Based on the serial time read from the second layer data, characterized by superimposing the additional data of the plurality of time order.

  The computer program according to the present invention specifies a first layer in which image content data is recorded, additional data related to the image content, time data representing a predetermined time, and any image of the image content. Causing the computer constituting the playback device to read the data of the image content from the optical disk having the second layer recorded in association with the image specifying data to be played back, to play back the additional data In the computer program, a superimposing step for superimposing the additional data on an image corresponding to the image specific data read from the second layer when reproducing the image content on the computer, and predetermined image specific data on the computer Determination step for determining whether there is a plurality of additional data related to Hints, in the superimposition step, the computer, if the additional data associated with a predetermined image identification data is plural, based on the time data, and wherein the superposing additional data of the plurality of time order.

  In the present invention, when there are a plurality of additional data related to the predetermined image specifying data, the plurality of additional data are added to the image of the image content corresponding to the image specifying data based on the time data read from the second layer. Are added in order of time.

  According to the present invention, since the received additional data is recorded in the second layer, when reproducing the content of the optical disc, for example, an additional image (for example, a comment) based on the additional data of the second layer Can be displayed together with the content, and viewers can share the appreciation of the content without being restricted by conditions such as being connected to the network and playing the content with the same title during the same time period. In addition, the burden of compiling, storing, and providing comments can be eliminated for the provider that provides the content distribution service.

  According to the present invention, when reproducing the content of the optical disc, the additional data and the image specifying data and time data corresponding to the additional data are read from the second layer, and for example, an additional image based on the additional data (for example, Comment) can be superimposed on the data of the content and displayed together with the content, so that it is limited to conditions such as being connected to the network and playing the content with the same title in the same time zone. In addition, viewers can share the appreciation of the content, and the burden of compiling, storing, and providing comments can be eliminated for the provider that provides the content distribution service.

It is a functional block diagram which shows an example of a principal part structure of the optical disk apparatus of Embodiment 1 of this invention. 4 is a flowchart showing comment data recording processing in the optical disc apparatus according to Embodiment 1 of the present invention; It is a flowchart which shows the data superimposition process of the comment in the optical disk apparatus of Embodiment 1 of this invention. FIG. 10 is an exemplary diagram showing a display example of a comment when the number of comments related to predetermined image specifying data is one in the optical disc device according to the first embodiment. FIG. 8 is an exemplary diagram showing a display example of the number of non-superimposed comment data when there are a plurality of comment data related to predetermined image specifying data in the optical disc apparatus according to the first embodiment. FIG. 6 is an exemplary diagram showing a display example of all comments when there are a plurality of comment data related to predetermined image specifying data in the optical disc apparatus according to the first embodiment. It is an illustration figure which shows the modification of the comment display process in the optical disk apparatus of Embodiment 1 of this invention. It is a functional block diagram which shows an example of a principal part structure of the optical disk apparatus of Embodiment 2 of this invention.

  Hereinafter, a recording / reproducing apparatus, a reproducing apparatus, a recording method, a reproducing method, and a computer program according to an embodiment of the present invention will be described in detail with reference to the drawings, taking as an example the case of applying to an optical disc apparatus.

  The recording / reproducing apparatus and the reproducing apparatus according to the present invention are compatible with a hybrid disc having a rewritable recording unit. A hybrid disk is an optical disk having both a ROM layer and an RE layer. In addition, the recording / reproducing apparatus and the reproducing apparatus according to the present invention can read content (moving image) data of the hybrid disc, reproduce the content, and display the content on the display unit. Furthermore, the recording / reproducing apparatus and the reproducing apparatus according to the present invention receive additional data relating to the content from a viewer, and record or record the additional data on the rewritable recording unit (RE layer) of the hybrid disc. The additional data can be read and an additional image based on the additional data can be displayed on the display unit.

  In the following, the additional image is a comment (text image) from a viewer on a predetermined display image of the content, the additional data is comment data, and the optical disc is the hybrid disc. This will be described as an example. That is, when a user wants to leave a comment on a predetermined display image during playback of a moving image recorded on the hybrid disc, the viewer creates a comment using a mobile phone, for example, and performs recording and playback according to the present invention. The recording / reproducing apparatus according to the present invention receives the comment data and records it on the RE layer of the hybrid disc. The additional image is not limited to a comment from a viewer, and may be an image such as a photograph. On the other hand, the playback apparatus according to the present invention reads the comment data from the hybrid disc in which the comment data is recorded in the RE layer by the above-described method, and displays the taste image related to the comment data on the display unit. . In the following embodiments, the recording / reproducing apparatus and the reproducing apparatus are the same optical disc apparatus.

(Embodiment 1)
FIG. 1 is a functional block diagram showing an example of the configuration of the main part of an optical disk apparatus according to Embodiment 1 of the present invention. In FIG. Yes.

  An optical disc apparatus 1 of the present invention records data by irradiating a hybrid disc with laser light, or obtains reflected light of the laser light to read data, and outputs from the optical pickup 2 A playback unit 3 that plays back the moving image, an external display unit 4 that outputs an image based on a video signal output from the playback unit 3, and an audio signal output from the playback unit 3. And an external speaker 5 that outputs a sound based on it.

  Further, the optical disc apparatus 1 of the present invention acquires comment data from a viewer, an accepting unit 7 (accepting means, instruction accepting means) for accepting operation instructions of the apparatus itself, and the like via the network. A communication unit 8 (acquisition means) that records the comment data acquired via the reception unit 7 or the communication unit 8 and the RE layer of the hybrid disc C, and is acquired from the reflected light of the laser beam. And a superimposing unit 9 that superimposes the comment data on the content image and outputs the data to the display unit 4.

  Furthermore, the optical disc apparatus 1 of the present invention includes a control unit 10. The control unit 10 includes a CPU 11, a ROM 12 and a RAM 13. Various control programs are stored in the ROM 12 in advance, and the RAM 13 stores a plurality of data, and can be read out regardless of the storage order, storage position, or the like. The RAM 13 temporarily stores, for example, a program read from the ROM 12, data generated by executing the program, data received from the outside, and the like. The RAM 13 appropriately reads various data stored in response to a read instruction from the CPU 11.

  The CPU 11 loads the control program stored in advance in the ROM 12 onto the RAM 13 and executes it, thereby controlling the various hardware described above, and operating the optical disc apparatus 1 as a playback apparatus according to the first embodiment of the present invention. Let

  In addition, a time measuring unit 14 (time specifying means) for specifying a predetermined time and measuring the passage of time is provided. Based on the time specifying result by the time measuring unit 14 or the time measuring result, as described later, comment data Is recorded on the RE layer of the hybrid disc C, or the comment displayed on the display unit 4 is deleted.

  In the optical disk apparatus 1, the hybrid disk C is placed on a turntable (not shown) provided in a spindle motor and rotated. At this time, the data surface of the hybrid disk C is irradiated with laser light from the objective lens 21. .

The hybrid disc C has a content recording layer L1 (first layer) of a ROM layer on which moving images are recorded. The content recording layer L1 is made of, for example, a BD-ROM. Further, the hybrid disc C has an rewritable recording layer L0 (second layer) in which comment data is recorded, and the rewritable recording layer L0 is made of, for example, BD-RE.
Specifically, the hybrid disc C has a base substrate, a rewritable recording layer L0, a spacer layer that separates the rewritable recording layer L0 and the content recording layer L1, and a content recording layer L1 from the so-called label surface toward the data surface. And a protective coating layer for protecting data are sequentially laminated.

  The optical pickup 2 reads moving image data from the ROM layer of the inserted hybrid disc C or records data on the RE layer of the hybrid disc C, the objective lens 21, the actuator 22 that moves the objective lens 21, and the ROM layer of the inserted hybrid disc C. For this purpose, a laser output unit 23 for irradiating laser light through the objective lens 21 and a light receiving element are provided.

  The objective lens 21 is disposed so as to face the data surface of the hybrid disk C, and is moved in a direction in which the objective lens 21 contacts and separates from the data surface of the hybrid disk C.

  The laser output unit 23 irradiates the data surface of the hybrid disc C with laser light via the objective lens 21. The pulse width, power, wavelength, and the like of the laser light output from the laser output unit 23 are adjusted by the laser control unit 6 based on, for example, OPC (Optimum Power Control) processing. When reading data from the hybrid disk C, reading laser light is output from the laser output unit 23 under the control of the laser control unit 6, and when recording data on the hybrid disk C, under the control of the laser control unit 6. A laser beam for recording is output from the laser output unit 23.

  When data is read from the content recording layer L1 or the rewritable recording layer L0 of the hybrid disc C, the objective lens 21 is appropriately moved in the contact / separation direction by the actuator 22 and the laser beam output from the laser output unit 23 is The wavelength is adjusted by the control of the laser controller 6.

  When reading data from the hybrid disc C, the reproduction laser light emitted from the laser output unit 23 is reflected from the content recording layer L1 or the rewritable recording layer L0, and an electric signal based on such reflected light is sent to the reproduction unit 3. The video signal and the audio signal are converted and output to the display unit 4 and the speaker 5.

  Specifically, the reproduction unit 3 performs amplification, demodulation, error correction, and the like on the electric signal, and then separates and decodes video, audio, subtitles, and the like that are included in one signal according to each identifier. Process. The video signal and the audio signal output from the reproduction unit 3 in this way are output as moving images or sounds on the display unit 4 and the speaker 5, respectively.

  The accepting unit 7 accepts an operation instruction of the device itself such as playback, stop, and pause transmitted from the viewer via, for example, a remote controller. In addition, comment data can be received from the viewer via an external device such as a mobile phone having functions such as infrared communication and Bluetooth (registered trademark). In addition, it is not restricted to this, You may comprise the reception part 7 so that a keyboard may be provided.

  The communication unit 8 is capable of P2P (Peer to Peer) communication via a network, for example, and is a network card or modem that externally acquires data relating to a comment to be displayed on the display unit 4 while being superimposed on a predetermined display image. Etc.

  Hereinafter, in the optical disc apparatus 1 of the first embodiment, comment data is received from the viewer and recorded in the rewritable recording layer L0 of the hybrid disc C, and the rewritable recording layer L0 of the hybrid disc C has already been recorded in the rewritable recording layer L0. A comment data superimposition process in which recorded comment data is read and a comment based on the comment data is superimposed on a predetermined display image and displayed on the display unit 4 will be described.

  FIG. 2 is a flowchart showing comment data recording processing in the optical disc apparatus 1 according to the first embodiment of the present invention. For convenience of explanation, moving picture data consisting of a plurality of frames is recorded in the content recording layer L1 of the inserted hybrid disc C, and a viewer displays a predetermined display image when viewing the moving picture. An example will be described in which a comment is sent from his / her mobile phone to the optical disc apparatus 1.

  When the optical disc apparatus 1 reads the moving image data from the content recording layer L1 of the hybrid disc C placed on the turntable and reproduces the moving image, the viewer comments on the predetermined display image from the mobile phone. Send. At this time, the CPU 11 of the control unit 10 receives comment data via the receiving unit 7 (step S101).

  The CPU 11 receives the received comment data, image specifying data for specifying the display image of the display unit 4 when the comment data is received (hereinafter referred to as image specifying data), and time data indicating the time when the comment is received. (Hereinafter referred to as reception time data) and temporarily stored in the RAM 13 (step S102).

  For example, the CPU 11 uses the frame specifying data (for example, currentframe property) specifying the frame corresponding to the display image of the display unit 4 when the comment data is received as the image specifying data, and receives the comment data. Time data that can be obtained from the timekeeping unit 14 is stored in the RAM 13 in association with the comment data as the reception time data.

  Next, the CPU 11 determines whether or not a moving image is currently being reproduced (step S103). For example, the CPU 11 monitors the reception unit 7 and determines that the moving image is not being reproduced when the reception unit 7 receives an operation instruction such as “pause”, “stop”, and “power off”.

  When the CPU 11 determines that the moving image is being reproduced (step S103: YES), the CPU 11 repeats the determination until it is determined that the moving image is not being reproduced. On the other hand, when it is determined that the moving image is not being reproduced (step S103: NO), the comment data recorded in the RAM 13 is recorded in the rewritable recording layer L0 of the hybrid disc C (step S104). At this time, the image specifying data and the reception time data stored in the RAM 13 are also recorded in association with each other.

  FIG. 3 is a flowchart showing comment data superimposition processing in the optical disc apparatus 1 according to the first embodiment of the present invention. For convenience of explanation, a moving image composed of a plurality of frames is recorded in the content recording layer L1 of the inserted hybrid disc C, and comment data obtained by the technique shown in FIG. 2, for example, is recorded in the rewritable recording layer L0. An example will be described in which the comment data is read when the moving image is reproduced, and the comment is displayed on the display unit 4 with respect to a predetermined display image.

  For example, when receiving an instruction to reproduce the hybrid disc C placed on the turntable via the accepting unit 7, the CPU 11 receives comment data from the rewrite recording layer L0 and image specifying data related to the comment data. And reception time data are read (step S201). The read comment data, image specifying data data, and reception time data are stored in the RAM 13.

  Next, the CPU 11 determines whether or not a comment is to be displayed for each display image displayed on the display unit 4 during reproduction (step S202). Such a determination is made by the CPU 11 comparing the frame specifying data (image specifying data) of the moving image being reproduced with the image specifying data read from the rewrite recording layer L0.

  When the CPU 11 determines that the comment is not a display image for displaying a comment (step S202: NO), the CPU 11 repeats the determination until it is determined that the comment is a display image for displaying a comment.

  On the other hand, if the CPU 11 determines that the comment is a display image to be displayed (step S202: YES), the CPU 11 continues to determine whether or not there is a plurality of comment data related to the display image (image specifying data). This is performed (step S203). For example, the determination is performed by the CPU 11 counting the data of the comment related to the image specifying data read and stored in the RAM 13.

  When the CPU 11 determines that there is not a plurality of comment data related to the image specifying data (step S203: NO), the CPU 11 superimposes the comment data stored in the RAM 13 on the display image (step S210). That is, the CPU 11 instructs the superimposing unit 9, and the superimposing unit 9 superimposes the comment data stored in the RAM 13 on the corresponding display image, and a text image of the comment based on the comment data is combined with the display image. And displayed on the display unit 4.

  FIG. 4 is an exemplary diagram showing a display example of a comment when the number of comments related to predetermined image specifying data is one in the optical disc apparatus 1 according to the first embodiment. A so-called dialog box is displayed on the display unit 4, and comments based on comment data read from the rewritable recording layer L0 of the hybrid disc C are displayed in the dialog box.

  Thereafter, the CPU 11 determines whether or not a predetermined time has elapsed since the comment was displayed on the display unit 4 based on the timing result of the timing unit 14 (step S211). If the CPU 11 determines that the predetermined time has not elapsed (step S211: NO), the process returns to step S210. That is, the CPU 11 displays the comment on the display unit 4 until a predetermined time elapses.

  If the CPU 11 determines that the predetermined time has elapsed (step S211: YES), the CPU 11 deletes the comment displayed on the display unit 4 (step S208).

  On the other hand, when it is determined in step S203 that there are a plurality of comment data related to the image specifying data (step S203: YES), the CPU 11 instructs the superposition unit 9 to store the plurality of comment data. Only one comment data is superimposed (step S204). Therefore, one comment is synthesized with the display image and displayed on the display unit 4. For example, the CPU 11 may be configured to display only the earliest comment based on the respective reception time data related to the plurality of comment data.

  Subsequently, the CPU 11 superimposes the display image with numerical data representing the number of comment data not superimposed (hereinafter referred to as non-superimposed comment data) among the plurality of comment data (step S205). . That is, the CPU 11 instructs the superposition unit 9 to superimpose the number data. For example, the superposition unit 9 superimposes the number data on the display image, and a numeric text image related to the number data is synthesized with the display image. Are displayed on the display unit 4.

  FIG. 5 is an exemplary diagram showing a display example of the number of non-superimposed comment data when there are a plurality of comment data related to predetermined image specifying data in the optical disc apparatus 1 according to the first embodiment. One comment is displayed in the dialog box of the display unit 4, and a number representing the number of unsuperimposed comment data is displayed at the end of the comment.

  Next, the CPU 11 monitors the reception unit 7 to determine whether or not an instruction for a “pause” operation has been received (step S206). If the CPU 11 determines that an instruction for a “pause” operation has been received (step S206: YES), it superimposes all comment data (step S212). That is, the CPU 11 instructs the superimposing unit 9, and the superimposing unit 9 superimposes all the comment data stored in the RAM 13 on the display image displayed on the display unit 4 in the pause state. Therefore, the text images of all comments are combined with the display image displayed on the display unit 4 and displayed. In this case, each comment is displayed in order of time from the top to the bottom, for example, based on the respective reception time data stored in the RAM 13.

  FIG. 6 is an exemplary diagram showing a display example of all comments when there are a plurality of comment data related to predetermined image specifying data in the optical disc apparatus 1 according to the first embodiment. In the dialog box of the display unit 4, all comments are displayed from the top to the bottom in the order of reception based on the respective reception time data.

  Next, the CPU 11 determines whether or not the reproduction has been resumed (step S213). Such a determination is made by the CPU 11 monitoring whether or not the receiving unit 7 has received an instruction for a “play” operation.

  If the CPU 11 determines that the reproduction has not been resumed (step S213: NO), the process returns to step S212. That is, the CPU 11 displays all comments on the display unit 4 until reproduction is resumed.

  If the CPU 11 determines that the reproduction has been resumed (step S213: YES), the process returns to step S204 again. That is, when playback is resumed, only one comment is displayed, and the number of non-superimposed comment data is displayed together.

  On the other hand, when it is determined in step S206 that the instruction of the “pause” operation has not been received (step S206: NO), the CPU 11 continues to display a comment on the display unit 4 for a predetermined time. It is determined whether or not it has elapsed (step S207). Such a determination is made by the CPU 11 based on the time measurement result of the time measuring unit 14.

  If the CPU 11 determines that the predetermined time has not elapsed (step S207: NO), the process returns to step S204. That is, the CPU 11 displays one comment on the display unit 4 until a predetermined time elapses. If the CPU 11 determines that the predetermined time has elapsed (step S207: YES), the CPU 11 deletes the comment displayed on the display unit 4 (step S208).

  Next, the CPU 11 determines whether or not the reproduction of the moving image has been completed (step S209). Such a determination is performed by, for example, comparing a total property including the total number of frames of a moving image being played back (so-called totalframe property) with frame specifying data related to a display image currently displayed on the display unit 4. Is done by.

  If the CPU 11 determines that the reproduction of the moving image has not ended (step S209: NO), the process returns to step S202. On the other hand, when it is determined that the reproduction of the moving image has ended (step S209: YES), the process ends.

  Since the optical disc apparatus 1 according to the first embodiment of the present invention has the above-described configuration, the apparatus is connected to the network, and viewers can watch content of the same title at the same time. Even in a situation where the conditions such as being present are not satisfied, viewers can share appreciation for the content. In addition, the provider that provides the content distribution service can eliminate the burden of compiling, storing, and providing comments.

  In the optical disc apparatus 1 according to the first embodiment of the present invention, the comment data to be recorded in the rewritable recording layer L0 of the hybrid disc C does not have to be one file, and may be a plurality of files.

  Further, in the optical disc apparatus 1 according to the first embodiment of the present invention, the comment displayed on the display unit 4 is colored, and for example, the color of the comment varies depending on time, region, comment content, and comment creator. You may comprise as follows.

  In the above description, the case where the comment data is recorded in the rewritable recording layer L0 of the hybrid disc C during the pause has been described as an example. However, the present invention is not limited to this. For example, in the case of ejection You may comprise so that it may record.

  Further, the optical disc apparatus 1 according to the first embodiment of the present invention is not limited to the configuration described above. For example, since the communication unit 8 is capable of P2P communication, when the optical disc apparatus 1 is connected to the network, the communication unit 8 acquires the IP address of the partner apparatus existing on the network, participates in the P2P node, and The data of comments related to the same content can be aggregated.

  When the optical disk device 1 is connected to the Internet, the content name of the hybrid disk C in which the optical disk device 1 is inserted, the unique number of the hybrid disk C, and the like are used as keywords to participate in the P2P node and share information. In this case, since the optical disc apparatus 1 automatically acquires necessary information from the partner or the own hybrid disc C, it is not necessary for the user (viewer) to input information. The optical disc device 1 searches the network for a partner device in which the hybrid disc C of the same title (content file name) is inserted, and if found, automatically shares information. At this time, it is not necessary that the content of the corresponding hybrid disc C is being played back, as long as it is inserted into the counterpart device and information can be read out.

  For example, when there is a large amount of shared information (for example, comment data), a merge process may be arbitrarily performed. Since this depends on the capability of the device, there is no particular limitation. For example, as described above, the acquired comment data is recorded on the hybrid disc C using a pause, an eject, or the like as a trigger.

  Further, by limiting the amount of comment data recorded in the rewritable recording layer L0 of the hybrid disc C in the optical disc apparatus 1, the number of comment data to be superimposed on the corresponding image, that is, displayed on the display unit 4 is displayed. The number of comments may be controlled.

  For such a restriction function, for example, when acquiring information from the network, the country or region is specified using the IP address, the region code of the hybrid disk C, and the information of the device itself, and the information is attached. Display may be controlled by saving. As a result, comment data from a foreign country can be suppressed or limited to a specific area, and comment data can be selectively acquired. In the case of a Japanese terrestrial digital broadcasting compatible recorder, etc., there are a zip code, a regional setting, etc. in the regional setting information. By using this, it becomes possible to specify the region more accurately. As P2P software, a technique such as Winny can be used.

  Further, the optical disc apparatus 1 according to the first embodiment of the present invention is not limited to the configuration described above. For example, it is assumed that the viewer further comments (hereinafter referred to as a reply) on another person's comment. For such a case, a receiving means for receiving the reply is provided, and the reply received through the receiving means is recorded in the rewritable recording layer L0 of the hybrid disc C in association with the comment of the other person. When displaying the comment of the other person in the reproduction of the moving image of the hybrid disc C, the reply is not always displayed but only the presence / absence of the reply and the number thereof are displayed (for example, see FIG. 7A). . The apparatus may further include a receiving unit that receives an instruction to display all replies, and when the receiving unit receives an instruction to display all replies, all the replies may be displayed (for example, see FIG. 7B). ).

(Embodiment 2)
FIG. 8 is a functional block diagram showing an example of a main part configuration of the optical disc apparatus 1 according to Embodiment 2 of the present invention. The optical disc apparatus 1 according to the second embodiment can provide the computer program for performing the operation on the portable recording medium A such as a flash memory via the communication interface of the communication unit 8. It is configured. Furthermore, the optical disc apparatus 1 according to the second embodiment is configured such that the computer program can be downloaded from an external device (not shown) via the communication unit 8. The contents will be described below.

  The optical disc device 1 according to the second embodiment includes an exterior (or interior) recording medium reader (not shown), and when the received additional data (comment data) is received by the recording medium reader. The image specifying data for specifying the image that has been reproduced and the time specifying means (time counting unit 14) are associated with the time data, and the received additional data and the image specifying data and the time data corresponding to the additional data are Whether or not there is a plurality of additional data related to the predetermined image specifying data by controlling the recording means to record and superimposing the additional data on an image corresponding to the read image specifying data when reproducing the image content A portable recording medium A on which a program for determining whether or not is recorded is inserted, and this program is inserted into, for example, a storage unit (not shown) of the control unit 10. To install. Such a program is loaded into the RAM 13 and executed. Thereby, it functions as the optical disc apparatus 1 of the present invention according to the second embodiment.

  The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

DESCRIPTION OF SYMBOLS 1 Optical disk apparatus 2 Optical pick-up 7 Reception part 8 Communication part 9 Superimposition part 10 Control part 11 CPU
14 Timekeeping Section C Hybrid Disc L0 Rewrite Recording Layer L1 Content Recording Layer

Claims (11)

The image content data is read and reproduced from an optical disc having a first layer in which image content data is recorded and a second layer in which data can be written, while data is stored in the second layer. In a recording / reproducing apparatus for recording
Receiving means for receiving additional data related to the image content when reproducing the image content;
A recording / reproducing apparatus comprising: recording means for recording the additional data received by the receiving means on the second layer. A time specifying means for specifying the time when the receiving means has received the additional data;
The recording means includes
The additional data is configured to be recorded on the second layer in association with image specifying data for specifying an image reproduced at the time of reception and time data by the time specifying means. Item 4. The recording / reproducing apparatus according to Item 1. Replay determining means for determining whether or not the image content is being replayed;
3. The recording apparatus according to claim 1, wherein when the reproduction determining unit determines that the image content is not being reproduced, the recording unit is configured to record the additional data on the second layer. The recording / reproducing apparatus described in 1. The first layer in which the data of the image content is recorded, and the additional data related to the image content are associated with time data indicating a predetermined time and image specifying data for specifying any image of the image content. In a playback device that reads and plays back the data of the image content from an optical disc having a recorded second layer,
Superimposing means for superimposing the additional data on an image corresponding to the image specifying data read from the second layer when reproducing the image content;
A plurality of determination means for determining whether or not there are a plurality of additional data related to the predetermined image specifying data;
When there are a plurality of additional data related to the predetermined image specifying data, the superimposing means is configured to superimpose the plurality of additional data in time order based on the time data read from the second layer. A reproducing apparatus characterized by the above. When there are a plurality of additional data related to the predetermined image specifying data,
The superimposing means is configured to superimpose a part of the plurality of additional data,
The number superimposing means for superimposing numerical data representing the number of unsuperimposed additional data when part of the plurality of additional data is superimposed by the superimposing means. 5. The playback device according to 4. An instruction receiving means for receiving an instruction to superimpose all the additional data;
An instruction determining means for determining whether or not the instruction is accepted when a part of the plurality of additional data is superimposed by the superimposing means;
6. The reproducing apparatus according to claim 5, wherein when the instruction determining unit determines that the instruction is received, the superimposing unit is configured to superimpose all the additional data. An acquisition means for acquiring additional data related to the image content from outside,
7. The playback apparatus according to claim 4, wherein the superimposing unit superimposes the additional data acquired by the acquiring unit on the image of the image content. While reading the image content data and reproducing the image content from the optical disc having the first layer in which the image content data is recorded and the second layer in which the data can be written, the image content is reproduced. In a recording method for recording data in two layers and recording additional data relating to the image content in the second layer in a recording / reproducing apparatus including a time specifying unit for specifying time,
Accepting the additional data when reproducing the image content; and
The additional data received by the receiving step includes: image specifying data for specifying an image reproduced at the time of receiving; and a recording step for recording in the second layer in association with time data by the time specifying means. A characteristic recording method. The first layer in which the data of the image content is recorded, and the additional data related to the image content are associated with time data indicating a predetermined time and image specifying data for specifying any image of the image content. In a playback method for playing back the additional data in a playback device that reads the data of the image content from the optical disc having the recorded second layer and plays back the image content,
A superimposing step of superimposing the additional data on an image corresponding to the image specifying data read from the second layer when reproducing the image content;
A plurality of determination steps for determining whether or not there are a plurality of additional data relating to the predetermined image specifying data,
A reproduction method characterized in that when there are a plurality of additional data related to predetermined image specifying data, the plurality of additional data is superimposed in time order based on the time data read from the second layer in the superimposing step. Additional data relating to the image content is obtained by reading and reproducing the image content data from an optical disc having a first layer in which the image content data is recorded and a second layer in which the data can be written. Receiving the additional data received by the receiving means to a computer constituting a recording / reproducing apparatus comprising: a receiving means for receiving data; a recording means for recording data in the second layer; and a time specifying means for specifying time. In a computer program that records on a layer,
Causing the computer to associate the additional data received by the receiving unit with image specifying data for specifying an image reproduced at the time of receiving, and time data by the time specifying unit;
A computer program comprising: causing the computer to control the recording unit to record additional data received by the receiving unit and image specifying data and time data corresponding to the additional data. The first layer in which the data of the image content is recorded, and the additional data related to the image content are associated with time data indicating a predetermined time and image specifying data for specifying any image of the image content. In a computer program that causes a computer constituting a playback device that reads the data of the image content from the optical disc having the recorded second layer to play back the image content, plays back the additional data.
A superimposing step of superimposing the additional data on an image corresponding to the image specifying data read from the second layer when reproducing the image content on a computer;
A plurality of determination steps for causing a computer to determine whether or not there are a plurality of additional data related to the predetermined image specifying data,
In the superimposing step, when there are a plurality of additional data relating to predetermined image specifying data, the computer program superimposes the plurality of additional data in time order based on the time data.

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