JP2008165896A - Video information reproducing device and optical disk reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reproduce video information including an unreproducible part with satisfactory convenience. <P>SOLUTION: A DSP 32 of a disk player 100 includes a reading part 321 reading the video information stored in an optical disk 2, a reproduction determination part 322 determining whether or not the video information read by the reading part 321 is reproducible, and a display control part 323 displaying information indicating that it is unreproducible on a display 200 when it is determined that the video information is unreproducible by the reproduction determination part 322. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a video information playback apparatus and an optical disk playback apparatus that play back video information stored in a recording medium and display the information on a monitor. In particular, the present invention relates to a disc player that reproduces video information stored in an optical disc such as a DVD (Digital Versatile Disk) or a CD (Compact Disc) and encoded in the DivX format and displays it on a monitor.

  In recent years, as video cameras and personal computers have become cheaper and have higher performance, it has become relatively easy to encode the video information of the video shot by the user and store it on a recording medium such as an optical disk. It is coming. As encoding methods for encoding video information, there are MPEG4 (Moving Picture Experts Group phase 4), WMV (Windows (registered trademark) Media Video), DivX, and the like.

Here, when video information is encoded and recorded on a recording medium and an error occurs due to a user's erroneous operation or the like, the video information may not be read and reproduced. In order to solve this problem, various apparatuses have been proposed. For example, a data reproduction apparatus that creates a list of video information that can be played back based on a playback result of video information stored in advance, and plays back the video information after determining in advance whether the video information can be played back according to the list Is disclosed (see Patent Document 1).
JP 2006-107580 A

  However, in the data reproducing apparatus, it is necessary to create a list of video information that can be reproduced based on the reproduction result of the video information stored in advance, which may increase the labor of the user. In addition, when the list of reproducible video information has not been created (or when the list of reproducible video information has not been updated), video information that cannot be reproduced is reproduced. Thus, when playing back video information that cannot be played back, nothing is displayed on the monitor that displays the played back video, so the user may determine that the data playback device has failed. .

  In view of the above problems, an object of the present invention is to provide a video information reproducing apparatus and an optical disk reproducing apparatus that can reproduce video information including a portion that cannot be reproduced with good convenience.

  In order to achieve the above object, an optical disk playback apparatus according to claim 1 is an optical disk playback apparatus for playing back video information stored in an optical disk and encoded in DivX format and displaying the information on a monitor. Reading means for reading information, decoding means for decoding the video information read by the reading means, reproduction propriety determining means for determining whether the video information read by the reading means is reproducible, and Display means for displaying information indicating that reproduction is impossible on the monitor when the reproduction possibility determination means determines that reproduction is impossible, and the decoding means is read by the reading means. If the video information is damaged, it is determined that the video information cannot be decoded, and When it is determined that the video information cannot be decoded by the code means, it is determined that the reproduction is impossible, and when the reading means is determined that the reproduction is impossible by the reproduction permission determination means, Information indicating that the video information stored in the optical disc is continuously read, and that the display control means continues reading the video information when it is determined that the playback control means cannot play back the video information. Is displayed on the monitor.

  The video information reproducing apparatus according to claim 2 is a video information reproducing apparatus that reproduces video information stored in a recording medium and displays the information on a monitor, and reading means for reading the video information stored in the recording medium; When the video information read by the reading means is reproducible, it is determined that the video information is reproducible. When the reproducibility determination means determines that the video information is not reproducible, it cannot be replayed on the monitor. And a display control means for displaying information indicating the above.

  The video information reproducing apparatus according to claim 3 is the video information reproducing apparatus according to claim 2, comprising decoding means for decoding the video information read by the reading means, wherein the reproduction availability determination means comprises: When it is determined that the video information cannot be decoded by the decoding means, it is determined that reproduction is impossible.

  The video information reproducing apparatus according to claim 4 is the video information reproducing apparatus according to claim 3, wherein the decoding means decodes when the video information read by the reading means is damaged. It is characterized that it is determined that it is not possible.

  The video information reproducing device according to claim 5 is the video information reproducing device according to any one of claims 2 to 4, wherein the video information stored in the recording medium is encoded in a DivX format. It is characterized by information.

  The video information reproducing apparatus according to claim 6 is the video information reproducing apparatus according to any one of claims 2 to 5, wherein the reading unit cannot be reproduced by the reproduction possibility determination unit. When it is determined, the video information stored in the recording medium is continuously read.

  The video information reproduction device according to claim 7 is the video information reproduction device according to claim 6, wherein the display control means determines that the reproduction is impossible by the reproduction availability determination means. Information indicating that the reading of the video information is continued is displayed on the monitor.

  A video information reproducing apparatus according to an eighth aspect is the video information reproducing apparatus according to any one of the second to seventh aspects, wherein the recording medium is an optical disk.

  According to the optical disk reproducing apparatus of the first aspect, the video information stored in the optical disk is read, and it is determined whether or not the read video information can be reproduced. When it is determined that playback is not possible, information indicating that playback is not possible is displayed on the monitor, so that video information including a location that cannot be played back can be played back with good convenience.

  That is, when the read video information is non-reproducible video information, information indicating that the video information cannot be reproduced is displayed on the monitor, and thus the user visually recognizes that the video information is not reproducible. Therefore, it is not erroneously determined that the optical disk reproducing apparatus is out of order.

  Further, when it is determined that the video information cannot be decoded, it is determined that the video information cannot be reproduced. Therefore, it is possible to accurately and easily determine whether or not the video information can be reproduced.

  Further, when the read video information is damaged, it is determined that it cannot be decoded, so that it is possible to more accurately determine whether or not reproduction is possible.

  In addition, since the video information stored in the optical disc is information encoded in the DivX format, the video information can be reproduced with good convenience in video information that is likely to be damaged.

  In other words, due to the fact that software encoded in DivX format can be obtained free of charge, there are many opportunities for users with little knowledge about software, and as a result, corrupted video information is likely to be generated. The video information can be reproduced with good convenience in the video information that is likely to be damaged.

  In addition, when it is determined that reproduction is impossible, reading of the video information stored on the optical disc is continued, so that when the reproducible video information is read, the video information is reproduced on the monitor. Therefore, it is possible to reproduce the video information including the unreproducible portion with better convenience.

  In addition, when it is determined that the video information cannot be reproduced, information indicating that the reading of the video information is continued is displayed on the monitor, so that the video information including the non-reproducible portion is reproduced more conveniently. can do.

  That is, when the read video information is non-reproducible video information, information indicating that the video information is being read is displayed on the monitor, and the user continues to read the video information. Since it can be visually recognized that the reproducible video information is reproduced, it is possible to prevent inappropriate operations (for example, an operation to stop reproduction, an operation to turn off the power, etc.), etc. Can do it.

  In addition, since the video information is stored on the optical disc, the video information including a portion that cannot be reproduced can be reproduced with good convenience. In other words, video information that is created by a user by using a video camera or the like is often stored on an optical disk with good portability. Can be replayed.

  According to the video information reproducing apparatus of the second aspect, the video information stored in the recording medium is read, and it is determined whether or not the read video information can be reproduced. When it is determined that playback is not possible, information indicating that playback is not possible is displayed on the monitor, so that video information including a location that cannot be played back can be played back with good convenience.

  That is, when the read video information is non-reproducible video information, information indicating that the video information cannot be reproduced is displayed on the monitor, and thus the user visually recognizes that the video information is not reproducible. Therefore, it is not erroneously determined that the video information reproducing apparatus is out of order.

  According to the video information reproducing apparatus of claim 3, when it is determined that the video information cannot be decoded, it is determined that the video information cannot be decoded. Can be accurately and easily performed.

  According to the video information reproducing device of the fourth aspect, when the read video information is damaged, it is determined that the video information cannot be decoded. Can be done accurately.

  According to the video information reproducing apparatus of the fifth aspect, since the video information stored in the recording medium is information encoded in the DivX format, the video information is conveniently used in the video information that is likely to be damaged. It can reproduce well.

  In other words, due to the fact that software encoded in DivX format can be obtained free of charge, there are many opportunities for users with little knowledge about software, and as a result, corrupted video information is likely to be generated. The video information can be reproduced with good convenience in the video information that is likely to be damaged.

  According to the video information reproducing apparatus of the sixth aspect, when it is determined that the reproduction is impossible, the reading of the video information stored in the recording medium is continued, so that the reproducible video information is read. In this case, since the video information is reproduced on the monitor, the video information including the portion that cannot be reproduced can be reproduced with higher convenience.

  According to the video information reproducing apparatus of the seventh aspect, when it is determined that reproduction is impossible, information indicating that reading of the video information is continued is displayed on the monitor. The video information including the location can be reproduced with better convenience.

  That is, when the read video information is non-reproducible video information, information indicating that the video information is being read is displayed on the monitor, and the user continues to read the video information. Since it can be visually recognized that the reproducible video information is reproduced, it is possible to prevent inappropriate operations (for example, an operation to stop reproduction, an operation to turn off the power, etc.), etc. Can do it.

  According to the video information reproducing apparatus of the eighth aspect, since the recording medium is an optical disk, the video information including a portion that cannot be reproduced can be reproduced with good convenience. In other words, video information that is created by a user by using a video camera or the like is often stored on an optical disk with good portability. Can be replayed.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of a disc player according to the present invention. A disc player 100 (corresponding to an optical disc playback device or a video information playback device) includes a pickup device 1, an output device 3, a control device 4, a drive device 5, a display unit 6, and an operation unit 7 according to the present invention.

  The pickup device 1 (corresponding to a part of the reading means) includes an LD for CD (Laser Diode) and an LD for DVD, and converts reflected light from an optical disc 2 (CD or DVD) to be reproduced into an electrical signal. Various information such as audio information and video information stored in the optical disc 2 (CD or DVD) is read. The LD for CD irradiates a laser beam that reads information stored on the CD. The LD for DVD irradiates a laser beam that reads information stored on the DVD.

  Here, it is assumed that video data encoded (= encoded) in the DivX format is stored in advance on the optical disc 2. The pickup device 1 is configured to be movable in the radial direction of the optical disc 2 and in the vertical direction (proximity and separation directions) by the feed motor 51.

  The output device 3 converts information such as audio information and video information from the pickup device 1 into audio and image, and outputs them to a speaker and a monitor (not shown). A digital signal processor (32), a reproduction processing circuit (33), and an output circuit (34).

  The RF amplifier 31 (corresponding to a part of the reading unit) amplifies a signal corresponding to audio information, video information and the like from the pickup device 1 and outputs the amplified signal to the DSP 32.

  The DSP 32 and the reproduction processing circuit 33 (corresponding to a part of the display control means) perform various information processing for reproduction (for example, decoding processing, image processing, etc.) on the signal from the RF amplifier 31. . The output circuit 34 (corresponding to a part of the display control means) performs DA conversion processing to output information from the reproduction processing circuit 33 to an unillustrated speaker and display 200. The display 200 (corresponding to a monitor) includes an LCD (Liquid Crystal Display) or the like, and displays video information from the output circuit 34 so as to be visible from the outside.

  The control device 4 controls the operations of the pickup device 1 and the drive device 5 based on an instruction operation received via the operation unit 7, and includes a system controller 41 and a driver IC 42. The system controller 41 receives information from the operation unit 7 and transmits it to the DSP 32, and transmits information from the DSP 32 to the display unit 6.

  The driver IC 42 controls the operations of the pickup device 1 and the drive device 5 based on instructions from the DSP 32. Specifically, the driver IC 42 controls the operations of the CD LD and the DVD LD disposed in the pickup device 1 and controls the operations of the feed motor 51 and the spindle motor 52 constituting the drive device 5. It is.

  The drive device 5 includes a feed motor 51 and a spindle motor 52. The feed motor 51 moves the pickup device 1 in the radial direction and the vertical direction of the optical disc 2 based on an instruction from the driver IC 42. The spindle motor 52 rotates the optical disc 2 based on an instruction from the driver IC 42.

  The display unit 6 includes an LCD or the like, and displays information from the DSP 32 so as to be visible from the outside. The operation unit 7 includes various operation buttons and the like, and receives an operation from the user and outputs an operation signal corresponding to the DSP 32.

  FIG. 2 is a functional configuration diagram showing an example of the configuration of the main part of the disc player 100 according to the present invention. The DSP 32 includes an MPU (Micro Processing Unit), an unillustrated RAM (Random Access Memory), and an unillustrated ROM (Read Only Memory). The MPU functionally includes a reading unit 321, a playability determination unit 322, and a display control unit 323.

  Here, the MPU functions as functional units such as a reading unit 321, a reproducibility determination unit 322, and a display control unit 323 by reading and executing a program stored in advance in a ROM (not shown) or the like.

  Among various data stored in a RAM (not shown) or a ROM (not shown), data that can be stored in a removable recording medium is, for example, hard disk drive, optical disk drive, flexible disk drive, silicon disk drive, cassette medium reading In this case, the recording medium is, for example, a hard disk, an optical disk, a flexible disk, a CD, a DVD, a semiconductor memory, or the like.

  Further, the reproduction processing circuit 33 includes a decoding circuit 331 and an OSD circuit 332. A decoding circuit 331 (corresponding to a decoding unit) decodes video information read from the optical disc 2 by the reading unit 321. As described above, here, since the video information stored in the optical disc 2 is video information encoded in the DivX format, the decoding circuit 331 corresponds to the DivX format for the video information read from the optical disc 2. A decoding process is performed. In addition, when the video information read from the optical disc 2 by the reading unit 321 is damaged, the decoding circuit 331 determines that the decoding cannot be performed, and sends a signal to that effect to the DSP 32 (reproduction availability determination unit 322). Output.

  The OSD circuit 332 (corresponding to a part of the display control unit) performs OSD (On-Screen Display) display on the display 200 based on an instruction from the display control unit 323.

  The reading unit 321 (corresponding to a part of the reading unit) reads the video information stored in the optical disc 2 via the pickup device 1 and the RF amplifier 31 shown in FIG. 1 and decodes the read video information to the decoding circuit 331. Is output. The reading unit 321 continues to read the video information stored on the optical disc 2 when it is determined that the reproduction is not possible by the reproduction possibility determination unit 322.

  A reproduction availability determination unit 322 (corresponding to a reproduction availability determination unit) determines whether or not the video information read by the reading unit 321 is reproducible. Here, the reproduction possibility determination unit 322 determines that reproduction is impossible when a signal indicating that decoding cannot be performed is received from the decoding circuit 331.

  The display control unit 323 (corresponding to a part of the display control unit) displays information indicating that playback is impossible on the display 200 when the playback possibility determination unit 322 determines that playback is impossible. It is. In this case, the display control unit 323 displays an OSD display indicating that playback cannot be performed on the display 200 via the OSD circuit 332 (for example, “The video information is damaged and cannot be played back”). Display of character information).

  Further, the display control unit 323 displays information indicating that the reading of the video information is continued on the display 200 when it is determined that the reproduction is not possible by the reproduction possibility determination unit 322. Here, the display control unit 323 displays an OSD display on the display 200 indicating that the video information is being read (for example, “Reading the video information continues. Please wait.”). ).

  Further, the display control unit 323 performs decoding processing on the video information read by the reading unit 321 via the decoding circuit 331 when it is determined by the reproduction possibility determination unit 322 that reproduction is possible. The video is displayed on the display 200 via the output circuit 34 shown in FIG.

  FIG. 3 is a flowchart showing an example of the operation of the disc player 100 (mainly the DSP 32 and the reproduction processing circuit 33) according to the present invention. First, the video information stored in the optical disc 2 is read by the reading unit 321 (S101). Then, the decoding circuit 331 determines whether or not decoding processing is possible (S103). If it is determined that the decoding process is impossible (NO in S103), the process proceeds to step S109. If it is determined that the decoding process is possible (YES in S103), the decoding circuit 331 executes the decoding process (S105), and the display control unit 323 displays the video on the display 200 (S107). .

  In the case of NO in step S103, it is determined that the playback is impossible by the playback possibility determination unit 322 (S109), and the display control unit 323 indicates that playback cannot be performed on the display 200 via the OSD circuit 332. The OSD display and the OSD display indicating that the reading of the video information is continued are displayed (S111). When the process of step S107 is completed, or when the process of step S111 is completed, the reading unit 321 determines whether or not the reading of the video information stored on the optical disc 2 is completed (S113). ). If it is determined that the video information has not been read (NO in S113), the process returns to step S101, and the processes in and after step S101 are repeatedly executed. If it is determined that the video information has been read (YES in S113), the process is terminated.

  In this manner, the video information stored on the optical disc 2 is read, and it is determined whether or not the read video information can be reproduced. When it is determined that playback is not possible, information indicating that playback is not possible is displayed on the display 200, so that video information including a location that cannot be played back can be played back with good convenience. .

  That is, when the read video information is non-reproducible video information, information indicating that the video information cannot be reproduced is displayed on the display 200, so that the user visually recognizes that the video information cannot be reproduced. Therefore, it is not erroneously determined that the disc player 100 is out of order.

  Further, when it is determined that the video information cannot be decoded, it is determined that the video information cannot be reproduced. Therefore, it is possible to accurately and easily determine whether or not the video information can be reproduced.

  Further, when the read video information is damaged, it is determined that it cannot be decoded, so that it is possible to more accurately determine whether or not reproduction is possible.

  In addition, since the video information stored in the optical disc 2 is information encoded in the DivX format, the video information can be reproduced with good convenience in video information that is likely to be damaged.

  In other words, due to the fact that software encoded in DivX format can be obtained free of charge, there are many opportunities for users with little knowledge about software, and as a result, corrupted video information is likely to be generated. The video information can be reproduced with good convenience in the video information that is likely to be damaged.

  Further, when it is determined that reproduction is impossible, reading of the video information stored in the optical disc 2 is continued, so that when the reproducible video information is read, the video information is reproduced on the display 200. Therefore, video information including a portion that cannot be reproduced can be reproduced with better convenience.

  Further, when it is determined that the video information cannot be reproduced, information indicating that the reading of the video information is continued is displayed on the display 200, so that the video information including the non-reproducible portion can be further improved in convenience. Can be played.

  That is, when the read video information is non-reproducible video information, information indicating that reading of the video information is continued is displayed on the display 200, so the user continues to read the video information. Since it can be visually recognized that the video is reproducible, it can wait until the reproducible video information is reproduced, thereby preventing an inappropriate operation (for example, an operation to stop reproduction, an operation to turn off the power, etc.). It can be done.

  In addition, since the video information is stored in the optical disc 2, the video information including a portion that cannot be reproduced can be reproduced with good convenience. That is, since video information generated by a user himself / herself with a video camera or the like is often stored on the optical disk 2 with good portability, the video information including a non-reproducible part stored on the optical disk 2 is convenient. It can be reproduced with good performance.

The present invention can also be applied to the following forms.
(A) In the present embodiment, the case where the video information reproducing apparatus is the disc player 100 has been described. However, the video information reproducing apparatus may be an apparatus that reproduces video information stored in a recording medium. For example, the video information reproducing apparatus may be a personal computer configured to be able to reproduce video information stored in a recording medium such as a hard disk.

  (B) In this embodiment, the case where the recording medium is the optical disc 2 has been described, but the recording medium may be another type of recording medium. For example, the recording medium may be a hard disk, a flexible disk, a semiconductor memory, or the like. For example, when the recording medium is a hard disk, the video information reproducing apparatus according to the present invention needs to include a hard disk drive.

  (C) In the present embodiment, the case where the optical disc playback device is the disc player 100 has been described. However, the optical disc playback device may be any device that plays back video information stored on the optical disc 2. For example, the optical disc playback apparatus may be a personal computer configured to be able to play back video information stored on the optical disc 2.

  (D) In the present embodiment, a case has been described in which the DSP 32 functions as the reading unit 321, the playability determination unit 322, and the display control unit 323. However, at least one functional unit may be realized by a circuit. .

  (E) In this embodiment, the case where the disc player 100 includes the decode circuit 331 and the OSD circuit 332 has been described. However, at least one of the decode circuit 331 and the OSD circuit 332 is realized as a functional unit in the DSP 32, for example. But you can.

  (F) In this embodiment, the case where the video information stored in the optical disc 2 is video information encoded in the DivX format has been described. However, the video information is encoded in another format (for example, WMV format). Form may be sufficient.

These are the block diagrams which show an example of the disc player based on this invention. These are functional block diagrams which show an example of a structure of the principal part in the disc player based on this invention. These are the flowcharts which show an example of operation | movement of the disc player (mainly DSP, reproduction | regeneration processing circuit) concerning this invention.

Explanation of symbols

100 disc player (video information playback device, optical disc playback device)
200 display (monitor)
1 Pickup device (part of reading means)
3 Output device 31 RF amplifier (part of reading means)
32 DSP
321 Reading unit (part of reading means)
322 Reproducibility determining unit (reproducibility determining means)
323 Display control unit (part of display control means)
33 Reproduction processing circuit 331 Decoding circuit (decoding means)
332 OSD circuit (part of display control means)
34 Output circuit (part of display control means)

Claims (8)

An optical disc playback apparatus for playing back video information stored in an optical disc and encoded in DivX format and displaying the information on a monitor,
Reading means for reading video information stored on the optical disc;
Decoding means for decoding video information read by the reading means;
Reproducibility determination means for determining whether the video information read by the reading means is reproducible;
Display control means for displaying information indicating that reproduction is impossible on the monitor when the reproduction possibility determination means determines that reproduction is impossible;
With
The decoding means determines that the video information read by the reading means cannot be decoded when the video information is damaged;
The reproduction permission / inhibition determining means determines that reproduction is impossible when it is determined by the decoding means that video information cannot be decoded,
The reading means continues reading the video information stored on the optical disc when the reproduction possibility determination means determines that the reproduction is impossible.
The display control means displays, on the monitor, information indicating that the reading of video information is continued when it is determined that the reproduction is impossible by the reproduction possibility determination means. . A video information playback device for playing back video information stored in a recording medium and displaying it on a monitor,
Reading means for reading video information stored in the recording medium;
Reproducibility determination means for determining whether the video information read by the reading means is reproducible;
Display control means for displaying information indicating that reproduction is impossible on the monitor when the reproduction possibility determination means determines that reproduction is impossible;
A video information reproducing apparatus comprising: A decoding means for decoding the video information read by the reading means;
3. The video information reproducing apparatus according to claim 2, wherein the reproduction possibility determination unit determines that reproduction is impossible when it is determined that the decoding unit cannot decode the video information.   4. The video information reproducing apparatus according to claim 3, wherein the decoding unit determines that decoding cannot be performed when the video information read by the reading unit is damaged.   5. The video information reproducing apparatus according to claim 2, wherein the video information stored in the recording medium is information encoded in a DivX format.   6. The reading unit according to claim 2, wherein the reading unit continues reading the video information stored in the recording medium when it is determined that the reproduction is impossible by the reproduction possibility determination unit. The video information reproducing apparatus according to any one of the above.   The display control means displays information indicating that the reading of the video information is continued on the monitor when it is judged that the reproduction is impossible by the reproduction possibility judgment means. The video information reproducing apparatus described in 1.   8. The video information reproducing apparatus according to claim 2, wherein the recording medium is an optical disk.

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