JP2007059980A - Hard disk recorder and recording and reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a HDD recorder for preventing content information from being leaked due to thumbnail display and avoiding a performance state of the prevention measure from being recognized by other users. <P>SOLUTION: A processing flow for pseudo content information display processing by the HDD recorder includes: a step S120 of referencing setting information of the HDD recorder 1 when receiving an instruction of content information display from a user and confirming an ON/OFF state of a content information pseudo flag; a step S125 of displaying content information ordinarily when the pseudo flag is set to OFF; a step S130 of confirming whether or not the pseudo content information generated by the user is stored in a HDD 13; and a step S150 of displaying the pseudo content information generated by the user when stored or applies pseudo display of the content information by using default pseudo content information when not stored. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to an HDD (Hard Disk Drive) recorder that records video information and audio information, and in particular, displays a content display of video information stored in the HDD recorder as a thumbnail (
The present invention relates to a recording / reproducing method in the case of using a representative image.

2. Description of the Related Art In recent years, recording / reproducing apparatuses such as HDD recorders using an HDD as a recording medium are widely used as apparatuses for recording and reproducing contents (programs) processed in video apparatuses such as televisions. Many of these recording / playback apparatuses usually have a thumbnail display function in order to easily present information of recorded (recorded) content to the user.

The thumbnail display function is a function for creating a thumbnail by reducing and converting an image extracted from a part of content, and displaying the thumbnail as a part of content information on a content list screen or the like. Thereby, it is possible to visually recognize an image included in the content without replaying the content, and it is possible to easily check the outline of the content. As a method for creating thumbnails, for example, there are a method in which the user designates and creates an image inside the content, or a method in which the recording / playback apparatus randomly creates and creates an image from the inside of the content.

However, in the conventional thumbnail display function, a part of the content can be browsed by the thumbnail without reproducing the content, so that there are cases where it is not preferable from the viewpoint of protecting personal information. For example, when a certain user does not want the content recorded on the HDD recorder to be viewed by an unspecified number of other users, the user needs to restrict viewing of the content. By restricting the viewing, other users cannot reproduce the content. However, it is possible to view a part of the content of the viewing restricted content by the thumbnail displayed by the thumbnail display function. As described above, the conventional thumbnail display function has a problem that the contents can easily be leaked while the contents can be easily confirmed.

In relation to the above problem, Patent Document 1 discloses an information processing apparatus that can limit the display of thumbnails of image data. The information processing apparatus of Patent Document 1 includes a first display control unit that controls display of a setting screen when an icon of image data is selected, and a first display
Setting means for setting a password for the image data based on a setting screen whose display is controlled by the display control means, and second display control means for controlling the display of the thumbnail of the image data for which the password is set by the setting means. It is characterized by providing.

According to the invention of Patent Document 1, when image data is selected, a setting screen is displayed, a password for the image data is set based on the setting screen, and a thumbnail of the image data for which the password is set is displayed. Since it is controlled, it is possible to limit the display of thumbnails of image data, and to prevent unauthorized use by third parties.

However, in the invention disclosed in Patent Document 1, leakage of content information can be prevented by disabling thumbnail display of content that is restricted in viewing, but viewing is restricted. This is known to other users. For this reason, there is a problem that it is not sufficient as a confidential function when it is not desired to let other users know that content restriction is prevented and content viewing is restricted.
JP 2001-215946 A

The present invention has been made in order to solve the above-described problem, and its purpose is to prevent content information of content whose viewing is restricted from leaking to an unspecified number of other users through thumbnail display. The present invention provides an HDD recorder having a function of preventing information leakage that is not perceived by other users while preventing viewing.

In order to achieve the above object, the HDD recorder of the present invention
Content information display means for displaying content information including detailed information of video information stored in the storage unit and a representative image created by performing reduction processing on an image extracted from the video information In a recording / reproducing apparatus comprising:
Based on the detailed information stored in the storage unit or the detailed information created by the user, the false detailed information is created, and the created false detailed information is stored in the storage unit as disguised detailed information. Memorizing detailed information creation means for storing;
An image extracted from the video information stored in the storage unit or a user-created image is subjected to a reduction process to create a representative image for disguise, and the generated disguise representative image is stored in the storage unit Representative image creation means for disguise stored in
Impersonation flag setting means for setting an impersonation flag, which is information that determines whether or not to impersonate the display contents of the content information when the control unit receives an instruction to display the content information, according to an instruction from the user When,
When the control unit accepts an instruction to display the content information and the disguise flag is set effectively by the disguise flag setting means, the detailed information for disguise and the representative image for disguise are configured Disguise content information display means for displaying disguise content information;
It is characterized by having.

According to this configuration
When receiving a content information display instruction from the user, the setting information of the HDD recorder is referred to and ON / OFF of the disguise flag of the content information is confirmed. When the disguise flag is set to OFF, the content information is displayed as usual. When the disguise flag is set to ON, it is confirmed whether user-created information (impersonation content information for disguise display created in advance by the user) is stored in the storage unit. If user-created information is stored, the user-created information is used to disguise content information. When user-created information is not stored, the disguise content information is displayed using disguise data stored in advance by the HDD recorder.

Also according to this configuration
The user can perform a disguise content information creation process on the disguise content information creation screen. On the disguise content information creation screen, it is possible to create disguise content information by creating a disguise thumbnail based on data stored in the HDD and adding false recording information to the disguise thumbnail. The created disguise content information is stored in the HDD and can be used as disguise content information in the content information display process.

In order to achieve the above object, the HDD recorder of the present invention
Reproduction restriction means for restricting reproduction and editing of the video information when the control unit receives an instruction to reproduce or edit the video information and the impersonation flag is set to be effective by the impersonation flag setting means. It is characterized by having prepared.

According to this configuration
When the camouflage flag is set to be effective, when a video information playback or editing instruction is received, for example, a warning or the like is displayed, and playback processing and editing processing can be disabled.

In order to achieve the above object, the HDD recorder of the present invention
When the control unit accepts reproduction of the video information and the camouflage flag is effectively set by the camouflage flag setting means, a camouflage created in advance according to the content of the camouflaged content information of the video information A disguise reproducing means for reproducing video information is provided.

According to this configuration
When the camouflage flag is set to be valid, when a video information playback instruction is received, playback of video information for disguise created in advance by the user (video information created according to the content of the disguised content information) Can be done.

In order to achieve the above object, the HDD recorder of the present invention
Update that restricts updating of the storage unit information when the control unit receives an instruction to update the information recorded in the storage unit and the camouflage flag is effectively set by the disguise flag setting means It is characterized by having limiting means.

According to this configuration
When the disguise flag is set to valid, when an instruction to change the information stored on the hard disk (for example, hard disk format) is received,
For example, it is possible to display a warning or the like and disable the change processing of information stored in the hard disk.

In order to achieve the above object, the HDD recorder of the present invention
When the disguise flag is set effectively by the disguise flag setting means, the disguise flag can change the setting state of the disguise flag by the user performing a predetermined key operation using the operation unit It is characterized by having a changing means.

According to this configuration
When the disguise flag is set to valid, the user who remembers the unlock method performs a specific key operation to display the password entry screen for canceling the disguise state or canceling the disguise state Etc. can be performed.

According to the first configuration of the present invention, when content information is not desired to be known to other users,
It is possible to prevent leakage of content information and protect personal information without recognizing that impersonation is being performed. Further, if the disguise content information is created, the control unit automatically performs disguise setting after that, so the user does not need to disguise the setting for each content. For this reason, even when the number of contents exceeds 100, for example, it is not necessary to impersonate each piece of content, and it is possible to disguise content information with a small amount of work.

According to the second configuration of the present invention, when a video playback instruction or an editing instruction is generated in a state where the disguise function is enabled, the playback process and the editing process are disabled.
It is possible to protect video information that is being disguised. Accordingly, it is possible to prevent inconsistency from occurring in the relationship between the video information actually stored and the management information, and to prevent the implementation of impersonation from being detected.

According to the third configuration of the present invention, when a video reproduction instruction is issued in a state where the disguise function is enabled, the disguise video information recorded in advance on the HDD by the user is reproduced.
Thereby, since it is possible to perform disguise not only for content information but also for the contents of video information, it is possible to prevent the execution of disguise from being detected even when the reproduction of the video information is instructed.

According to the fourth configuration of the present invention, when an instruction to update information stored in the HDD is generated in a state in which the disguise function is enabled, disabling the update process makes the disguise in progress. It is possible to protect video information and various information stored in the HDD. Thereby, it is possible to prevent inconsistency from occurring in the relationship between the various information of the HDD actually stored and the management information.

According to the fifth configuration of the present invention, when it is desired to cancel the disguise state when the disguise function is enabled, the disguise cancel screen is not displayed. It is not recognized that there is. As a result, it is possible to cancel and execute the disguise without recognizing that it is a disguise state.

An embodiment of the present invention will be described below with reference to the drawings.
[Embodiment]
<1. Internal structure of HDD recorder with DVD>
Here, the main configuration of the electric circuit system of the HDD recorder 1 according to the first embodiment of the present invention will be described with reference to the block diagram of FIG.

As shown in the block diagram of FIG. 3, the HDD recorder 1 of the present invention includes at least a control unit 1.
1, memory 12, HDD 13, data input unit 14, encoder unit 15, decoder unit 16,
A data output unit 17, a control program storage unit 18, an operation button group 21, and a front panel 22 are included.

The control unit 11 is a central processing unit for performing overall control of video information processing (content recording or playback, etc.) by organically controlling the drive of each member of the HDD recorder 1.
The control unit 11 is a central part that controls each device (for example, the HDD 13), calculates data, processes, and the like.

The memory 12 is a medium for temporarily storing various data held by the HDD recorder 1 and is configured by, for example, a writable RAM (Random Access Memory). Memory 1
2 has a role as a buffer memory for temporarily storing processing data when various kinds of information processing are performed by the control unit 11, instruction commands received from a user, and the like.

The HDD 13 is a magnetic storage medium for recording various data (video information, content information, etc.) held by the HDD recorder 1. The HDD 13 can be physically divided into a plurality of areas (partitions), and it is more desirable to store the areas according to the type of data to be stored (video information, content information, etc.).

The data input unit 14 receives digital data (for example, from an external device such as a digital tuner).
This is an input interface for inputting (video information). For example, when analog data is input, analog video data and audio data can be converted into digital data and input using an A / D converter (Analog Digital Converter).

The encoder unit 15 is a processing circuit for compressing (encoding) video data using a moving image compression method such as MPEG2, and compressing audio data using a sound compression method such as Dolby AC-3 or LPCM. Note that the data to be compressed is, for example, video data and audio data input from the data input unit 14.

The decoder unit 16 is a processing circuit for decompressing (decoding) the video data and the audio data compressed by the encoder unit 15 and the like. The decompressed data is output to an external device using, for example, a data output unit 17 described later.

The data output unit 17 is an output interface for outputting video data and audio data to an external device such as a monitor. For example, if the output device has only an analog interface, a D / A converter (Digital Analog Converter)
) Can be used to convert digital video data and audio data into analog data for output.

The control program storage unit 18 is a medium for storing program data for performing various processes (for example, video data input / output control, etc.) using the control unit 11, for example, a ROM that can only read information (Read Only Memory) or the like is used.

The operation button group 21 is an input interface for the user to make various instructions such as program recording and recording reservation to the HDD recorder 1. Front panel 22 is HD
It is a user interface for displaying various information of D recorder 1 to a user.
<2. About disguise thumbnail display process>
Here, the process steps of the disguise thumbnail display process in the HDD recorder 1 of the present invention will be described with reference to the flowchart of FIG. 1, the block diagram of FIG. 3, and the screen diagram of FIG.

As shown in FIG. 1, the control unit 11 detects the display instruction of the content information recorded in the HDD 13 from the user, and this process is started (S110). The content information display instruction is issued, for example, when the user performs a display operation of the content list screen using the operation button group 21.

Upon receiving the content information display instruction from the user, the control unit 11 refers to the setting information of the HDD recorder 1 stored in the HDD 13 (or memory 12), and the ON / OFF setting state of the content information impersonation flag from the setting information Is confirmed (S120). When the disguise flag is set to OFF, the normal content information display is performed (S125). Note that the normal content information display processing is the same as that of the prior art, and the description thereof is omitted here.

If the disguise flag is set to ON in S120, the control unit 11 determines that the HDD
13 (or memory 12) confirms whether or not disguise content information (impersonation content information created by a user using a disguise thumbnail or the like) described later is stored (S130). When impersonation content information created by the user is stored, the disguise content information is read (S140a). When impersonation content information created by the user is not stored, default impersonation content information (sample data of impersonation content information stored in the HDD recorder 1 at the time of factory shipment) is read (S140b).
).

The control unit 11 performs content information display processing based on the disguised content information read in S140a or S140b (S150). A specific example will be described with reference to FIG. FIG. 4A is a screen that displays content details using content information actually recorded in the HDD 13. On the other hand, FIG. 4B is a screen displaying the contents of content using the disguised content information created by the present invention. 4A is displayed when the disguise flag is OFF, and FIG. 4B is displayed when the disguise flag is ON.

In FIG. 4A, deer, sheep, etc. are displayed on the thumbnail, and it can be confirmed that the content is related to animals. On the other hand, in FIG. 4B, a ship, a car, or the like is displayed on the thumbnail, and it can be confirmed that the content is related to the vehicle. But actually HDD
The content recorded in 13 is content related to animals as shown in FIG. Further, since the detailed information (recording date and time, channel, etc.) is also disguised with the disguise detailed information, the contents are different between FIG. 4 (a) and FIG. 4 (b). However, regardless of whether or not the disguise display is performed, the disguise display is not performed for the remaining capacity display of the HDD 13, and the original value is displayed.

In addition, when an instruction such as a reproduction process or an editing process is given to the content on which the disguise content information is displayed (for example, the content indicated by the thumbnail image A (ship) in FIG. 4B), the disguise is detected. There is a possibility that. As a coping method in this case, for example, a response process such as displaying an unviewable warning or presenting false information on data corruption is performed. Alternatively, disguised content (user stored in HDD 13 in advance)
In this example, by playing back (content related to a ship), not only content information but also disguise inside the content may be performed.

In addition, it is preferable to have a function of restricting update processing of information stored in the HDD 13 when the disguise flag is ON. For example, in the state where disguise display using disguise content information is performed, if processing such as formatting of HDD 13 or editing / deletion of video information is performed, inconsistency occurs between content information and stored data.
For this reason, when a processing command for updating the storage data of the HDD 13 is received during the disguise display, it is more preferable that the disabling is performed by displaying a warning, for example.

Further, it is preferable that a function for returning the disguise display to the normal display is provided when the disguise flag is ON. In this case, the disguise display is canceled by inputting a password or a predetermined input operation (for example, long pressing of a reproduction key). If the password input screen is not to be recognized by other users, the password input screen can be hidden by user setting. It is also possible to cancel impersonation by double authentication processing, such as displaying a password input screen by performing a certain operation.
<3. Impersonation content information creation process>
Here, the processing steps of the disguise content information creation process in the HDD recorder 1 of the present invention will be described with reference to the flowchart of FIG. 2, the block diagram of FIG. 3, and the screen diagram of FIG.

As shown in FIG. 2, the control unit 11 detects the disguise content information creation instruction from the user, and this process is started (S210). The disguise content information creation instruction is issued, for example, when the user performs a disguise content information creation operation using the operation button group 21.

The control unit 11 that has received the disguise content information creation instruction from the user,
The number of disguise thumbnails used for disguise content information is requested (S220). When the number of thumbnails is selected by the user, the control unit confirms the device state of the HDD recorder 1 and confirms whether or not the disguise content information can be created (S230). For example, the HDD 13 has a remaining capacity for storing the disguised content information, an apparatus trouble has occurred, or writing to the HDD 13 is prohibited (special processing or high-load processing is being performed). Check if it is the case). As a result of confirmation, if it is determined that creation is possible, the process proceeds to the next process. If it is determined that the creation is impossible, the process is terminated.

The control unit 11 displays a disguise thumbnail selection screen based on the video information read from the HDD 13, and waits for a user to specify a thumbnail used for content disguise (S240). On the disguise thumbnail selection screen, for example, a plurality of thumbnails of content read from the HDD 13 are displayed, and the user can specify an impersonation thumbnail by selecting an arbitrary thumbnail from the thumbnails.

Next, the control unit waits for input of false detailed information (false recording date / time, recording mode, recording channel, etc.) to be added to the selected disguise thumbnail (250).
. As a result, disguise content information that is information combining disguise thumbnails and disguise detailed information is created. The selected disguise thumbnail and the detailed disguise detailed information can be stored in the HDD 13 on the assumption that the disguise detailed information is used again after the end of this process. In this case, the content information storage area for storing normal content information is more preferably stored in a disguised content information storage area that is a physically divided area.

The control unit 11 that has detected that the impersonation content information has been created by the user confirms whether or not the created impersonation content information is to be saved (S260).
. When it is instructed not to save, the process proceeds to S240 again, and the disguise content information creation screen is displayed again. When storage is instructed, the control unit 11 requests the user to select a storage area (S270). Thereby, for example, the user can select whether to store the created disguised content information in the content information storage area of the HDD 13 or in the disguised content information storage area.

When receiving an instruction to confirm the storage area from the user (S280), the control unit 11 stores the disguised content information in the storage area designated by the user (S290).
If no instruction to determine the storage area is received from the user (S280), the process proceeds to S240, and the disguise content information creation screen is displayed again.

In this embodiment, the disguise thumbnail and disguise content information are created based on the video information read from the HDD 13, but the disguise thumbnail, disguise detailed information, Alternatively, it is also possible to create a disguise thumbnail and disguise detailed information based on the disguise content information, and to create disguise content information based on them.
<4. Various features of the present invention>
According to the present embodiment, when a content information display instruction is received from the user, the setting information of the HDD recorder 1 is referred to, and the ON / OFF state of the content information impersonation flag is confirmed (S120), and the impersonation flag is set to OFF. If it is, the content information is displayed as usual (S125). When the impersonation flag is set to ON, it is checked whether or not impersonation content information created by the user is stored in the HDD 13 (S130). If it is stored, the stored user-created impersonation content information is stored. If not stored, content information disguise display processing is performed using default disguise content information (stored in the HDD 13 at the time of factory shipment) (S150).

As a result, when content information is not desired to be known to other users, the content information is used to prevent leakage of content information and protect personal information without recognizing that the content is being impersonated. It is possible.

Further, according to the present embodiment, the user can perform the disguise content information creation process on the disguise content information creation screen. On the disguise content information creation screen, HD
It is possible to create disguise content information by creating a disguise thumbnail based on the data stored in D13 and adding false recording information (detailed disguise detailed information) to the disguise thumbnail. The created disguise content information is stored in the HDD 13 and can be used as disguise content information in the content information display process.

This eliminates the need for users to create disguised content information on a content basis,
In addition, even if impersonation content information is not created, it is possible to perform disguise display using the default disguise content information, so that it is possible to disguise content information with a small amount of work for the user, improving convenience. Can be planned.
[Other embodiments]
The present invention has been described with reference to the preferred embodiments and examples. However, the present invention is not necessarily limited to the above embodiments and examples, and various modifications may be made within the scope of the technical idea. Can be implemented.

For example, a storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to the HDD recorder 1, and a computer (for example, CPU) in the HDD recorder 1 reads the program codes stored in the storage medium. Also by running
Needless to say, this is achieved.

In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy disk, HDD, optical disk, magneto-optical disk, CD-ROM, CD-R, magnetic tape, nonvolatile memory card, ROM, or the like is used. it can.

Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) operating on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

It goes without saying that the same effect can be obtained even when the video information processing method of the present invention is used in a recording / reproducing apparatus other than the HDD recorder. Examples of the recording / reproducing apparatus include a video tape recorder (VTR), a DVD recorder, a DV recorder, a digital video camera, a personal computer, and the like.

It is a processing flow figure of the disguise content information display process by the HDD recorder of this invention. It is a processing flow figure of the disguise content information creation process by the HDD recorder of this invention. It is the block diagram which showed the principal part structure inside the HDD recorder of this invention. It is the screen figure which showed an example of the content information display screen in the HDD recorder of this invention.

Explanation of symbols

1 HDD recorder (recording and playback device)
11 Control Unit 12 Memory 13 HDD (Storage Unit)
14 Data Input Unit 15 Encoder Unit 16 Decoder Unit 17 Data Output Unit

Claims (12)

Content information display means for displaying content information composed of detailed information of video information stored in the hard disk and thumbnails created by performing reduction processing on an image extracted from the video information In a hard disk recorder
The false detailed information is created based on the detailed information stored in the hard disk or the detailed information created by the user, and the created false detailed information is stored in the hard disk as disguised detailed information. Detailed information creation means for disguise,
A disguise for creating a disguise thumbnail by performing a reduction process on an image extracted from the video information stored in the hard disk or an image created by a user, and storing the disguise thumbnail thus created in the hard disk Thumbnail creation means,
When the control unit of the hard disk recorder receives an instruction to display the content information, it sets a disguise flag, which is a flag that determines whether or not to disguise the display content of the content information, according to an instruction from the user Disguise flag setting means,
When the control unit receives an instruction to display the content information and the disguise flag is set effectively by the disguise flag setting means, the disguise configured by the disguise detailed information and the disguise thumbnail Disguised content information display means for displaying content information;
Reproduction restriction means for restricting reproduction and editing of the video information when the control unit receives a reproduction instruction or an editing instruction for the video information and the disguise flag is effectively set by the disguise flag setting means When,
When the control unit receives an instruction to reproduce the video information and the camouflage flag is set effectively by the camouflage flag setting unit, the camouflage created according to the content of the camouflaged content information of the video information Disguise playback means for playing back video information;
Update restriction means for restricting update of the hard disk information when the control unit receives an instruction to update information recorded on the hard disk and the disguise flag is set effectively by the disguise flag setting means When,
When the disguise flag is set effectively by the disguise flag setting means, the disguise flag can change the setting state of the disguise flag by the user performing a predetermined key operation using the operation unit Change means,
A hard disk recorder characterized by comprising: Content information display means for displaying content information including detailed information of video information stored in the storage unit and a representative image created by performing reduction processing on an image extracted from the video information In a recording / reproducing apparatus comprising:
Based on the detailed information stored in the storage unit or the detailed information created by the user, the false detailed information is created, and the created false detailed information is stored in the storage unit as disguised detailed information. Memorizing detailed information creation means for storing;
An image extracted from the video information stored in the storage unit or a user-created image is subjected to a reduction process to create a representative image for disguise, and the generated disguise representative image is stored in the storage unit Representative image creation means for disguise stored in
Impersonation flag setting means for setting an impersonation flag, which is information that determines whether or not to impersonate the display contents of the content information when the control unit receives an instruction to display the content information, according to an instruction from the user When,
When the control unit accepts an instruction to display the content information and the disguise flag is set effectively by the disguise flag setting means, the detailed information for disguise and the representative image for disguise are configured Disguise content information display means for displaying disguise content information;
A recording / reproducing apparatus comprising: Reproduction restriction means for restricting reproduction and editing of the video information when the control unit receives an instruction to reproduce or edit the video information and the impersonation flag is set to be effective by the impersonation flag setting means. The recording / reproducing apparatus according to claim 2, further comprising: When the control unit accepts reproduction of the video information and the camouflage flag is effectively set by the camouflage flag setting means, a camouflage created in advance according to the content of the camouflaged content information of the video information 4. A recording / reproducing apparatus according to claim 2, further comprising disguise reproducing means for reproducing video information. Update that restricts updating of the storage unit information when the control unit receives an instruction to update the information recorded in the storage unit and the camouflage flag is effectively set by the disguise flag setting means 5. The recording / reproducing apparatus according to claim 2, further comprising a limiting unit. When the disguise flag is set effectively by the disguise flag setting means, the disguise flag can change the setting state of the disguise flag by the user performing a predetermined key operation using the operation unit 6. The recording / reproducing apparatus according to claim 2, further comprising a changing unit. A content information display step for displaying content information including detailed information of video information stored in the hard disk and thumbnails created by performing reduction processing on an image extracted from the video information; In the recording / reproducing method,
The false detailed information is created based on the detailed information stored in the hard disk or the detailed information created by the user, and the created false detailed information is stored in the hard disk as disguised detailed information. Detailed information creation process for disguise,
A disguise for creating a disguise thumbnail by performing a reduction process on an image extracted from the video information stored in the hard disk or an image created by a user, and storing the disguise thumbnail thus created in the hard disk Thumbnail creation process,
When the control unit of the hard disk recorder receives an instruction to display the content information, it sets a disguise flag, which is a flag that determines whether or not to disguise the display content of the content information, according to an instruction from the user Impersonation flag setting process,
When the control unit receives an instruction to display the content information and the disguise flag is set effectively by the disguise flag setting step, the disguise configured by the disguise detailed information and the disguise thumbnail Disguised content information display process for displaying content information;
A reproduction restriction step of restricting reproduction and editing of the video information when the control unit receives a reproduction instruction or an editing instruction of the video information and the disguise flag is set to be effective by the disguise flag setting step. When,
When the control unit receives an instruction to reproduce the video information and the camouflage flag is effectively set by the camouflage flag setting step, the camouflage created according to the content of the camouflaged content information of the video information Camouflage playback process to play back video information,
An update restriction step for restricting updating of the hard disk information when the control unit receives an update instruction for information recorded on the hard disk and the disguise flag is set to be valid in the disguise flag setting step. When,
When the disguise flag is set effectively by the disguise flag setting step, the disguise flag that can change the setting state of the disguise flag by the user performing a predetermined key operation using the operation unit Change process,
A recording / reproducing method comprising: Content information display step for displaying content information including detailed information of video information stored in the storage unit and a representative image created by performing reduction processing on an image extracted from the video information In a recording / reproducing method comprising:
Based on the detailed information stored in the storage unit or the detailed information created by the user, the false detailed information is created, and the created false detailed information is stored in the storage unit as disguised detailed information. Detailed information creation process for disguise to memorize,
An image extracted from the video information stored in the storage unit or a user-created image is subjected to a reduction process to create a representative image for disguise, and the generated disguise representative image is stored in the storage unit A representative image creation process for disguise stored in
Impersonation flag setting step of setting a disguise flag, which is information that determines whether or not to disguise the display contents of the content information when the control unit receives the content information display instruction, according to an instruction from the user When,
When the control unit accepts an instruction to display the content information and the disguise flag is effectively set by the disguise flag setting step, the controller includes the disguise detailed information and the disguise representative image. A disguise content information display step for displaying disguise content information;
A recording / reproducing method comprising: A reproduction restricting step for restricting reproduction and editing of the video information when the control unit receives an instruction to reproduce or edit the video information and the impersonation flag is effectively set by the disguise flag setting step; 9. The recording / reproducing method according to claim 8, further comprising: When the control unit accepts reproduction of the video information and the camouflage flag is effectively set by the camouflage flag setting step, a camouflage created in advance according to the content of the camouflaged content information of the video information 10. The recording / reproducing method according to claim 8, further comprising a disguise reproducing step of reproducing the video information. Update that restricts updating of the storage unit information when the control unit receives an instruction to update the information recorded in the storage unit and the camouflage flag is effectively set by the disguise flag setting step 11. The recording / reproducing method according to claim 8, further comprising a limiting step. When the disguise flag is set effectively by the disguise flag setting step, the disguise flag that can change the setting state of the disguise flag by the user performing a predetermined key operation using the operation unit The recording / reproducing method according to claim 8, further comprising a changing step.

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