JP3912402B2 - Information playback device - Google Patents

Description

  The present invention relates to an information reproducing apparatus, and more particularly to an information reproducing apparatus that stores a position where information reproduction is stopped and reproduces from the previous stop position at the next reproduction.

  Currently, in a CD player or MD player that reproduces recording information signals from a compact disc (CD) or minidisc (MD), or a DVD player that reproduces recording information of a DVD (Digital Versatile Disc), it is in the middle of one song or program. When the playback is interrupted, the recording address of the interrupted position is stored, and even if the CD, MD or DVD is taken out from the player and then loaded into the player, the playback can be started from the interrupted position. A player having a resume function is known (for example, JP 2000-331466 A).

  Also, in a recording / reproducing apparatus (player) for a recording medium that can be recorded / reproduced, such as a magneto-optical disk (MO) or a DVD-RAM, the address of the position where reproduction was interrupted is instantaneously controlled in the control area of the recording medium, etc. Information playback with a resume function that can be resumed by detecting the resume point when it is written as a resume point, and then the recording medium is reloaded into the player and played back from the position where it was interrupted. An apparatus is conventionally known (Japanese Patent Laid-Open No. 11-146327). In this conventional information reproducing apparatus with a resume function, a plurality of resume points can be set.

  By the way, a hard disk recorder using a hard disk that has been commercialized in recent years as a recording medium, such as a portable CD player or a DVD player, may be used by one user or even by a plurality of users. It is assumed that a plurality of users record and reproduce a plurality of video and audio programs on the same hard disk, unlike a mode in which a user exchanges a favorite disc and plays and reproduces video and audio.

  However, in the conventional information reproducing apparatus with a resume function, different resume points cannot be set for each of a plurality of users. Therefore, the conventional information reproducing apparatus with a resume function cannot be applied to a hard disk recorder.

  The present invention has been made in view of the above points, and is an information reproduction capable of identifying a user for a plurality of users (users) and setting a reproduction start position based on a past stop position for each user. An object is to provide an apparatus.

In order to achieve the above object, the present invention provides the following information reproducing apparatus.
Based on the stop position information indicating the stop position at which reproduction has been stopped in the past, the information recorded in the storage medium in which the medium identification information, which is the medium-specific identification information, is recorded in advance is newly determined from the stop position. In the information reproducing apparatus to reproduce,
The stop position information indicating the stop position at which reproduction of information recorded on the storage medium is stopped, user identification information for identifying the user who stopped the reproduction, and for identifying the storage medium A storage means for storing in the other storage medium in association with the medium identification information;
The user identification information input from the user who is about to start reproduction when the reproduction start request for information recorded in the storage medium is requested, and the user identification information stored in the other storage medium Based on the above, it is compared whether or not the user who is going to start the reproduction matches the user corresponding to the user identification information stored in the other storage medium, and the storage medium is preliminarily stored in the storage medium. When the recorded medium identification information and the medium identification information stored in the other storage medium match, the user matches and the medium identification information matches Shows the stop position information based on the user identification information of the matched user and the stop position information stored in the other storage medium in association with the matched medium identification information. Managing means for starting reproduction of the newly the information from the stop position,
When the stop position information is stored in the other storage medium when the erasure request or change request for the information recorded in the storage medium is requested, and the stop position information is stored A notification means for outputting a notification signal for notifying the user that the stop position information is stored;
An information reproducing apparatus comprising:

  In the present invention, a plurality of users are in an environment in which a reproducing operation is performed on the same storage medium, and the storage medium is a replaceable storage medium, which is once removed from the apparatus and then reproduced for reproduction. Is stored in the stop position information for each storage medium and each user based on the medium identification information unique to the medium and the user identification information. Based on this, the next playback can be performed from the previous stop position.

  Further, in the present invention, among the information recorded on the storage medium, it is determined that there is a user who has not finished reproducing the information where the stop position information is stored, and the information is deleted or deleted by other users. This can be notified during the change operation.

  As described above, according to the present invention, even if the storage medium is a replaceable storage medium, information is reproduced for each storage medium and each user based on the medium identification information unique to the medium and the user identification information. The stop position information is stored and the next playback can be performed from the previous stop position based on the stop position information for each storage medium and user, so that even if another user plays the same information on the same storage medium. The reproduction can be started from the previous stop position for each medium and each user.

  Furthermore, according to the present invention, among the information recorded on the storage medium, it is determined that there is a user who has not finished reproducing the information where the stop position information is stored, Since the notification is made at the time of the erasing or changing operation, it is possible to prevent the user who has finished reproducing the information from erasing or changing the information.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration diagram of an embodiment of an information reproducing apparatus according to the present invention. In FIG. 1, a hard disk recorder 10 is an embodiment of an information reproducing apparatus with a resume function, and includes an information management unit 11 and a hard disk drive (HDD) 12, and video and audio received on the HDD 12 from satellite broadcasting or the like. The program is recorded as MPEG2 encoded data and reproduced.

  The information management unit 11 in the hard disk recorder 10 records and manages information related to the user and information related to the recorded program in the HDD 12 together. The information managed by the information management unit 11 may be stored in an area different from the program stored on the HDD 12 or may be stored by setting a storage area outside using a nonvolatile memory. Also good.

  Information managed by the information management unit 11 is divided into a user information storage unit 112 and a program information storage unit 113 under the system route unit 111 and managed. The system root unit 111 stores and manages the capacity information of the HDD 12 and the last update information of the HDD 12. The user information storage unit 112 is a user information storage unit for managing users. The user information storage unit 112 stores a total number of users, a user name for identifying each user, and a password for each user. For use. Furthermore, as information for each user, information related to the user's program (program) preference and age information for parental control are set.

  The program information storage unit 113 is a program information storage unit for managing programs, and is set with the total number of recorded programs (total number of programs), HDD 12 usage / free capacity information, and information for each program. The Information for each program includes resume information including a resume point indicating a position on the HDD 12 where reproduction of each user is stopped, and program time information. The program information storage unit 113 stores these information and manages them. For use.

  For example, as shown in FIG. 2, the hard disk recorder 10 is connected to a monitor television receiver (TV) 22 via a code 21 and receives a remote control signal from a remote controller 23 by a light receiving unit 13 and processes it. The operation based on the remote control signal is performed. In FIG. 1, the control unit based on the remote control signal is not shown because it is common.

  Next, the case where the hard disk recorder 10 is used by three users A, B, and C shown in FIG. 1 will be described. When the user A operates the hard disk recorder 10 for the first time, first, a user name is registered. In this registration, a user registration screen GUI (graphical user interface) is displayed using the television receiver 22 shown in FIG. 2 connected to the hard disk recorder 10, and the user A uses the remote controller 23 according to the display screen. Enter.

  In the hard disk recorder 10, the information management unit 11 stores the user name of the user A in the user information storage unit 112 based on the input remote control signal received by the light receiving unit 13 shown in FIG. At this time, a password may be input to prevent unauthorized use by other users.

  In addition, the information management unit 11 compares the user name already registered in the user information storage unit 112 with the input user name, and when the same user name as the already registered user name is input, A display that prompts the user to input again with a different user name may be performed. The input user name is stored in the user information storage unit 112. For user B and user C, when operating hard disk recorder 10 for the first time, user registration similar to the above is performed.

  Next, the resume playback function of the hard disk recorder 10 by a plurality of users A, B, and C will be described. Now, it is assumed that the program # 1 is stored in the HDD 12 as schematically shown in FIG. This program # 1 is a sports program for recording and reproduction time T. After recording the program # 1, first, the user A reproduces and views the program # 1. User A first inputs a user name and password to hard disk recorder 10 as user settings. This input may be performed by displaying a GUI on the TV 22 and using the remote controller 23 as in the case of user registration described above.

  After the user setting, the user A starts playing the program # 1 from the top position (t = 0), and when the user # views it for the time tA (= T / 2) as schematically shown in FIG. 3B. Is interrupted (information playback is stopped). Then, the information management unit 11 stores the time tA = T / 2 at which the reproduction was interrupted as the resume point of the user A, and stores and manages the program information of the program # 1 in the program information storage unit 113. Here, the time code of the GOP layer of MPEG2 coding may be used for the elapsed playback time and resume point of the program.

  Next time, when the user A performs the reproduction operation of the program # 1, the information management unit 11 confirms the resume point of the user A of the program # 1 based on the stored program information in the program information storage unit 113, and interrupts the previous reproduction. Reproduction of the HDD 12 is started from the GOP at the position corresponding to the time tA. At this time, the reproduction may be performed after confirming with the user A whether or not to reproduce from the resume point. In this way, the user A can start viewing the program # 1 from the position where the previous reproduction was interrupted.

  Next, the user B makes the same user settings as the user A, starts playing the program # 1 from the head position (t = 0), and, as schematically shown in FIG. 3C, the time tB (= T / 3) It is assumed that playback is interrupted at the point of time of viewing. Then, the information management unit 11 stores the time tB = T / 3 at which the reproduction was interrupted as the resume point of the user B, and stores and manages the program information of the program # 1 in the program information storage unit 113.

  Further, the user C makes the same user settings as the users A and B, starts reproduction of the program # 1 from the head position (t = 0), and ends the program as shown in FIG. 3D. It is assumed that the user has watched until t = T. Since the user C has watched the program # 1 to the end, when trying to delete the program # 1 from the HDD 12, the information management unit 11 first checks whether or not the resume point is stored in the program information storage unit 113, and the resume point Is stored, a warning message is displayed on the TV 22, and the program # 1 is deleted only when the resume point is not stored.

  Here, since the resume points satisfying tA and tB <T are stored in the program information storage unit 113, the information management unit 11 views the program # 1 from the user A and the user B to the user C. A message warning that there is no message is displayed on the TV 22.

  It should be noted that means such as blinking of a warning lamp or warning sound may be used instead of the warning message described above or together with the message display. Further, when the resume point is stored, the user C may be prevented from erroneously erased by forcibly prohibiting the erase operation of the HDD 12.

  In the above embodiment, the hard disk is used as the main recording medium. However, the present invention is not limited to this, and other large-capacity storage media such as a semiconductor memory and an optical disk may be used. it can. However, in the above embodiment, the main recording medium is described as a built-in non-replaceable hard disk. However, when a replaceable recording medium is used as another recording medium, an ID unique to the recording medium is previously stored. Is recorded in a non-rewritable area, and when playback is stopped, stop position information (resume point) on the recording medium is stored in the information management unit in association with the medium identification ID. The medium identification ID reproduced from the recording medium at the time of reproduction is compared with the medium identification ID stored in the information management unit. If they match, information reproduction is started from the previous stop position based on the corresponding stop position information. Means to make it necessary.

  Also, if multiple programs are recorded on the large-capacity storage medium (main storage medium), check whether the resume point (playback stop information) is stored in the information management unit before erasing, and store the resume point. Of course, in the case of a programmed program, an operation for displaying an erasure prohibition alarm message or the like is performed for each program. Of course, not only the erasing operation but also the operation for changing the recording information such as the editing operation is displayed so as to prohibit the program in which the resume point is recorded.

It is a block diagram of one embodiment of the present invention. It is a figure which shows an example of the connection of this invention apparatus and peripheral equipment. It is operation | movement explanatory drawing of FIG.

Explanation of symbols

10 Hard Disk Recorder 11 Information Management Unit 12 HDD (Hard Disk Drive)
13 Light Receiver 22 Television Receiver (TV)
23 Remote control 111 System route part 112 User information storage part 113 Program information storage part

Claims (1)

Based on the stop position information indicating the stop position at which reproduction has been stopped in the past, the information recorded in the storage medium in which the medium identification information, which is the medium-specific identification information, is recorded in advance is newly determined from the stop position. In the information reproducing apparatus to reproduce,
The stop position information indicating the stop position at which reproduction of information recorded on the storage medium is stopped, user identification information for identifying the user who stopped the reproduction, and for identifying the storage medium A storage means for storing in the other storage medium in association with the medium identification information;
The user identification information input from the user who is about to start reproduction when the reproduction start request for information recorded in the storage medium is requested, and the user identification information stored in the other storage medium Based on the above, it is compared whether or not the user who is going to start the reproduction matches the user corresponding to the user identification information stored in the other storage medium, and the storage medium is preliminarily stored in the storage medium. When the recorded medium identification information and the medium identification information stored in the other storage medium match, the user matches and the medium identification information matches Shows the stop position information based on the user identification information of the matched user and the stop position information stored in the other storage medium in association with the matched medium identification information. Managing means for starting reproduction of the newly the information from the stop position,
When the stop position information is stored in the other storage medium when the erasure request or change request for the information recorded in the storage medium is requested, and the stop position information is stored A notification means for outputting a notification signal for notifying the user that the stop position information is stored;
An information reproducing apparatus comprising:

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