JPH09198793A - Information reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information reproducing device capable of surely inhibiting various information recorded in a recording medium from being reproduced by a person other than a user. SOLUTION: A control section 19 discriminates whether the same TOC information as TOC information stored in a buffer RAM 16 is stored in a recording RAM 17 or not, when it is discriminated that both of TOC information match with each other in the control section 19, the control section 19 does not receive operational instruction other than the instruction inputted with a pass-word, and the reproduction of an optical disk 1 loaded or the device body is inhibited. In this reproduction inhibiting state, when a pass-word inputted by an operation input section 18 matches with a pass-word corresponding to TOC information of the recording RAM 17 matching with TOC information stored in the buffer RAM 16, the control section 19 receives operation information from the operation input section 18, and the optical disk 1 loaded on the device body can be reproduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information reproducing apparatus for reading and reproducing various information such as music information, video information and character information from a recording medium.

[0002]

2. Description of the Related Art Conventionally, as an information reproducing apparatus for reading index information from a recording medium and reading and reproducing various information such as music information, video information and character information recorded on the recording medium based on the index information. Is an audio device such as a CD player or MD player for reproducing music information, an image device such as an optical video disc player or a picture MD player for reproducing image information,
There are OA devices such as word processors and personal computers that reproduce character information. According to such various devices, various information recorded in a recording medium is reproduced and output to the outside through a speaker or a display. It was possible to display.

In order to keep various information recorded on the recording medium secret in the above-mentioned various devices, a method of prohibiting reproduction of various information recorded on the recording medium by anyone other than the user is as follows. There has been a method in which a predetermined password or the like is recorded on a medium and reproduction is possible only when the password recorded on the recording medium and the password input by the user match.

[0004]

However, in the secret method in the above conventional apparatus, in a device capable of recording and reproducing various information, prohibiting reproduction of various information recorded on the recording medium by a user other than the user. However, there is a problem in that the reproduction-only device cannot prohibit reproduction of various information recorded on the recording medium by anyone other than the user.

An object of the present invention is to provide an information reproducing apparatus capable of surely prohibiting reproduction of various information recorded on a recording medium by anyone other than the user.

[0006]

In order to achieve the above object, the invention according to claim 1 is a recording medium in which various information such as video information and music information and index information corresponding to the information are recorded. On the other hand, in an information reproducing apparatus for reading index information from the recording medium, and reading and reproducing various information from the recording medium based on the read index information, an operation unit for instructing reproduction inhibition and a reproduction by the operation unit. Storage means for storing the index information read from the recording medium based on the prohibition instruction, and comparing the index information read from the recording medium with the index information stored in the storage means during reproduction of the recording medium. A comparison means and a reproduction / stop control of various information recorded on a recording medium based on a comparison result by the comparison means. It is provided with a a Cormorant control means.

According to a second aspect of the invention, the operating means is
A password can be input together with the reproduction prohibition instruction, and the storage means stores the index information read from the recording medium based on the reproduction prohibition instruction by the operation means and the password input by the operation means in association with each other. On the other hand, the control means determines that the index information read from the recording medium based on the comparison result by the comparison means and the index information stored in the storage means match each other. When the password stored corresponding to the index information is input by the operating means, the information recorded on the recording medium is reproduced.

According to a third aspect of the invention, the control means comprises:
When it is determined that the index information read from the recording medium based on the comparison result by the comparison unit and the index information stored in the storage unit match, the index information is associated with the index information. When the stored password is input by the operation means, the index information and the password are deleted from the storage means.

According to a fourth aspect of the present invention, display means for displaying various information reproduced from the recording medium is provided, and the operation means enables input of character information together with a reproduction prohibition instruction, while the storage means is provided. Stores the index information read from the recording medium based on the reproduction prohibition instruction by the operation means and the character information input by the reproduction means in association with each other, and the control means stores the comparison result by the comparison means. When it is determined that the index information read from the recording medium and the index information stored in the storage unit match based on the above, the character information stored corresponding to the index information This is displayed on the display means.

Therefore, according to the first aspect of the present invention, when the user operates the operating means to issue a reproduction prohibition instruction while the recording medium is attached to the apparatus main body, the recording with the storage means is attached. While storing the index information read from the medium, the index information read from the recording medium and the index information stored in the storage means are compared by the comparing means when the recording medium is reproduced, and based on the comparison result. When the control unit determines that the index information read from the recording medium and the index information stored in the storage unit match, the reproduction of the recording medium is stopped and the reproduction is prohibited so that the user can Reproduction of any recording medium can be prohibited.

According to the second aspect of the present invention, when the user operates the operating means to instruct the reproduction prohibition and inputs the password while the recording medium is attached to the main body of the apparatus, the storage means is operated. The index information read from the mounted recording medium and the input password are stored in association with each other, while the index information read from the recording medium by the comparing means and the index information stored in the storing means during reproduction of the recording medium. When the control means determines that the index information read from the recording medium and the index information stored in the storage means match based on the comparison result, the reproduction of the recording medium is stopped. Playback is prohibited by the user, at this time the user inputs the password by the operating means, and the input password is stored in the storage means. When it is determined by the control means that the passwords match, the reproduction of the recording medium can be prohibited by the user, and the reproduction of the recording medium can be prohibited. It can be played by the user.

According to the third aspect of the invention, when the user operates the operating means to instruct the reproduction prohibition and inputs the password while the recording medium is attached to the apparatus main body, the storage means is The index information read from the mounted recording medium and the input password are stored in association with each other, while the index information read from the recording medium by the comparing means and the index information stored in the storing means during reproduction of the recording medium. When the control means determines that the index information read from the recording medium and the index information stored in the storage means match based on the comparison result, the reproduction of the recording medium is stopped. Playback is prohibited by the user, at this time the user inputs the password by the operating means, and the input password is stored in the storage means. When it is determined by the control means that the password matches the password, the recording medium is reproduced, and the index information and password are deleted from the storage means to prohibit the reproduction of any recording medium by the user. In addition, the user can reproduce the recording medium whose reproduction is prohibited, and can cancel the reproduction prohibition of the recording medium.

According to the fourth aspect of the present invention, when the user operates the operating means to instruct the reproduction prohibition and inputs the character information while the recording medium is attached to the apparatus main body, the storage means is provided. The index information and the input character information read from the attached recording medium are stored in association with each other, while the index information read from the recording medium by the comparison unit and the storage unit are stored when the recording medium is reproduced. When the control means determines that the index information read from the recording medium and the index information stored in the storage means match with each other based on the comparison result, the reproduction of the recording medium is performed. By stopping and prohibiting reproduction, and displaying the character information stored corresponding to the index information by the display means, It is possible to prohibit the reproduction of the arbitrary recording medium by use user can recognize the reproduction inhibition reasons such as other users.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic functional block diagram showing an electrical configuration of an information reproducing apparatus according to an embodiment of the present invention, FIG. 2 is a flow chart showing operation control when reproduction inhibition is set in the information reproducing apparatus, and FIG. 7 is a flowchart showing operation control when reproduction is prohibited in the information reproducing apparatus.

In FIG. 1, 1 is music information, video information,
And various information such as character information and the TOC corresponding to the information
An optical disc (recording medium) on which information (index information) is recorded, 2 is a motor for rotationally driving the optical disc, and 3 is an optical disc 1 which is rotationally driven by the motor 2 for irradiating light. An optical pickup for reading information recorded on the optical disc 1 by returning light from the optical disc 1, a demodulation circuit 4 for demodulating a signal read by the optical pickup 3, and an optical pickup 5 for demodulation by the demodulation circuit 4. The motor 2 based on the signal from the controller 3 and the control signal from the controller 19 described later.
Is a servo circuit that controls the rotation of the optical pickup 3, the movement of the optical pickup 3 in the radial direction, and the tracking / focus control.

Reference numeral 6 is a signal processing circuit for subjecting the signal from the optical pickup 3 demodulated by the demodulation circuit 4 to predetermined signal processing, and 7 is a signal processing circuit for separating the signal processed by the signal processing circuit 6 into a video signal and an audio signal. This is a video / audio demodulation circuit for demodulating.

Reference numeral 8 is a video D / A converter for converting the video signal demodulated by the video / audio demodulation circuit 7 into an analog signal, and 9 is a predetermined signal for the analog video signal converted by the video D / A converter 8. Video encoder for processing, 1
Reference numeral 0 is a video amplifier which amplifies the video signal processed by the video encoder 9, and 11 is a display which displays the video signal amplified by the video amplifier 10.

Reference numeral 12 is an audio D / A conversion unit for converting the audio signal demodulated by the video / audio demodulation circuit 7 into an analog signal, and 13 is a high frequency part of the analog audio signal converted by the audio D / A conversion unit 12. LPF that cuts 14
Is an amplifier for amplifying the analog audio signal whose high frequency band is cut by the LPF 13, and 15 is a speaker for emitting the analog audio signal amplified by the amplifier 14 to the outside.

Reference numeral 16 denotes the optical disc 1 which is signal-processed by the signal processing circuit 6 when the optical disc 1 is mounted.
A buffer RAM for storing the TOC information from the optical disc 1, a record holding RAM for storing the TOC information from the optical disc 1 which has been signal-processed by the signal processing circuit 6 based on the memory control by the control unit 19, which will be described later. Is an instruction to play / stop various information recorded on the optical disc 1,
This is an operation input unit for performing a reproduction prohibition instruction, a prohibition cancellation instruction, a password input, and character information input.

Reference numeral 19 denotes TOC information from the optical disc 1 which has been signal-processed by the signal processing circuit 6, and R for buffer.
Based on the TOC information stored in the AM 16, the TOC information recorded in the recording RAM 17, and the operation instruction from the operation input unit 18, the servo control by the servo circuit 5, the signal processing control by the signal processing circuit 6, the buffer RAM 16
Data read / write control and data read / write control of the recording RAM 17.

With respect to the information reproducing apparatus configured as described above, the operation when reproduction is prohibited is first described.

When the optical disc 1 is mounted on the main body of the apparatus (step F1), the control unit 19 controls the servo circuit 5 accordingly to drive the motor 2 to rotationally drive the mounted optical disc 1. At the same time, the optical pickup 3 is driven to drive the optical disk 1 from the rotationally driven optical disk 1 to the T
The OC information is read (step F2). The TOC information read by the optical pickup 3 is demodulated by the demodulation circuit 4 and subjected to predetermined signal processing by the signal processing circuit 6, and then stored in the buffer RAM 16 via the control unit 19 (step F3) On the other hand, the control unit 19 determines whether the same TOC information as the TOC information stored in the buffer RAM 16 is stored in the recording RAM 17, thereby prohibiting the reproduction of the optical disc 1 mounted in the apparatus body. It is determined whether it is set (step F4).

When it is determined by the above operation that the reproduction prohibition is not set for the optical disc 1 mounted (step F5), the user operates the operation input unit 18 to give a reproduction prohibition instruction. (Step F
6), the control unit 19 responds to the reproduction prohibition instruction by storing the TOC information stored in the buffer RAM 16 in the recording RAM.
The display 11 by storing the image data in the step 17 (step F7) and sending the image data prompting the user to input the password registered in the controller 19 to the signal processing circuit 6.
A video prompting the user to enter a password is displayed on the screen (step F8).

When it is determined that the reproduction prohibition is not set for the optical disc 1 mounted in the apparatus body (step F5), the user operates the operation input unit 18
When an instruction other than a reproduction prohibition instruction (for example, a reproduction instruction) is operated by operating, the control unit 19 controls each unit to perform an operation according to the instruction, and, on the other hand, the optical system mounted on the apparatus main body. When it is determined that the reproduction prohibition is set for the disc 1 (step F5), the reproduction prohibition reproduction operation described later is performed.

Then, the user operates the operation input unit 18 to input the password in response to the image displayed on the display 11 (step F9), and then instructs the end of the password setting (step F10). The control unit 19 stores the password input by the operation input unit 18 in the recording RAM 17, and associates the password with the TOC information transferred from the buffer RAM 16 (step F11) and registers them in the control unit 19. The image data prompting the input of the character information is sent to the signal processing circuit 6 to display the image prompting the input of the character information on the display 11 (step F12).

Then, the user operates the operation input section 18 in response to the image displayed on the display 11 to input the character information (step F13), and thereafter gives an instruction to end the input of the character information (step F14). ) And the control unit 1
9 stores the character information input by the operation input unit 18 in the recording RAM 17, and associates the character information with the TOC information transferred from the buffer RAM 16 (step F15).

Therefore, according to the above-mentioned operation control, the optical disc 1 mounted on the main body of the apparatus arbitrarily by the user.
TOC information can be stored in the recording RAM 17 in association with the password and character information.

Next, the operation at the time of reproducing information using the optical disc 1 for which reproduction is prohibited is described.

When the optical disc 1 is mounted on the main body of the apparatus (step F1), the control unit 19 controls the servo circuit 5 accordingly to drive the motor 2 to rotationally drive the mounted optical disc 1. At the same time, the optical pickup 3 is driven to drive the optical disk 1 from the rotationally driven optical disk 1 to the T
The OC information is read (step F2). Then, the TOC information read by the optical pickup 3 is demodulated by the demodulation circuit 4 and subjected to predetermined signal processing by the signal processing circuit 6, and then stored in the buffer RAM 16 via the control unit 19 (step F3) On the other hand, the control unit 19 determines whether the same TOC information as the TOC information stored in the buffer RAM 16 is stored in the recording RAM 17, thereby prohibiting the reproduction of the optical disc 1 mounted in the apparatus body. It is determined whether it is set (step F4).

When the control section 19 determines that the reproduction inhibition is not set for the optical disc 1 mounted in the main body of the apparatus (step F5), the normal reproduction operation described above (steps F6 to F6) is performed. F
15) and when it is determined that the reproduction prohibition is set for the optical disc 1 mounted in the main body of the apparatus (step F5), the video data indicating the reproduction prohibition registered in the control unit 19 is executed. Is output to the signal processing circuit 6 to display an image indicating that the reproduction is prohibited on the display 11 (step F21), and the character information corresponding to the TOC information of the recording RAM 17 that matches the TOC information stored in the buffer RAM 16 is transmitted. For recording R
The video data read out from the AM 17 is sent to the signal processing circuit 6 by sending the read out text information (step F22), and video data for prompting the input of the password registered in the control unit 19 is signaled. By sending the password to the processing circuit 6, an image prompting the password input is displayed on the display 11 (step F23).

Then, in response to the image displayed on the display 11, the user operates the operation input unit 18 to input a password (step F24), and then instructs the end of password setting (step F25). The control unit 19 determines whether the password input by the operation input unit 18 and the password corresponding to the TOC information of the recording RAM 17 that matches the TOC information stored in the buffer RAM 16 match.

Then, the above-described password judgment operation (steps F24 to F2) is performed until both passwords match.
5) is performed, and when it is determined that both passwords match, the control unit 19 accepts an operation instruction from the operation input unit 18 (step F26), and at this time, the user operates the operation input unit 18 When the operation is instructed to release the prohibition (step F27), the control unit controls the recording RAM 17 based on the operation instruction to match the TOC information stored in the buffer RAM 16 and the TOC information.
The password / character information stored corresponding to the C information is erased (step F28), and the normal reproduction operation (step F6) is performed.
To Step F15).

While the control unit 19 is accepting an operation instruction from the operation input unit 18 (step F26), the user operates the operation input unit 18 to issue an instruction other than the prohibition release instruction (eg, a reproduction instruction). When it goes, the control unit 1
Reference numeral 9 controls each part so as to perform an operation according to the instruction, and the acceptance of the operation instruction in the control portion 19 is continued until a new optical disc 1 is mounted or the power is turned off. It

Therefore, according to the above operation control, the recording R
When the optical disc 1 on which the same TOC information as the TOC information stored in the AM 17 is recorded is attached to the main body of the apparatus, reproduction of the attached optical disc 1 can be prohibited, and recording is possible. When the password stored in the RAM 17 in association with the TOC information matches the password input by the user, various instructions such as a reproduction instruction and a prohibition cancellation instruction can be issued.

[0036]

As described above, according to the first aspect of the present invention, the index information of the recording medium is stored based on the operation of the user, and the stored index information and the recording medium are read from the recording medium at the time of reproducing the information. When the read index information matches, by prohibiting the reproduction of the recording medium, without recording data on the recording medium,
Since the reproduction of the recording medium can be prohibited, even the reproduction-only information reproducing apparatus can prohibit the reproduction of the recording medium desired by the user and keep the secret of the user.

According to the invention of claim 2 or 3, the index information and the password of the recording medium are stored based on the operation of the user, and the stored index information and the recording medium are read from the recording medium at the time of reproducing the information. When the read index information matches, reproduction of the recording medium is prohibited, while in this state, when the password stored when reproduction is set and the password input during information reproduction match, the reproduction is prohibited. By reproducing the recorded recording medium, reproduction of the recording medium can be prohibited without recording data on the recording medium, and reproduction of the reproduction prohibited recording medium can be performed by a predetermined user. Since it is possible to reproduce, even in a reproduction-only information reproducing apparatus, the reproduction of the recording medium desired by the user is prohibited. It is possible, it is possible to cancel the reproduction inhibition by the user, it can be kept confidential by the user.

According to the invention described in claim 4, the index information of the storage medium and the arbitrary character information are stored based on the operation of the user, and the stored index information and the information read from the recording medium at the time of reproducing the information. When the index information matches the stored index information, the reproduction of the storage medium is prohibited, and the character information stored in association with the index information is displayed on the display or the like, so that the reason for prohibiting the reproduction is displayed to other users. Since it can be recognized, it is possible to prevent other users from erroneously recognizing that the user is out of order.

[Brief description of drawings]

FIG. 1 is a schematic functional block diagram showing an electrical configuration of an information reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing operation control when reproduction is prohibited in the information reproducing apparatus.

FIG. 3 is a flowchart showing operation control when reproduction is prohibited in the information reproducing apparatus.

[Explanation of symbols]

 1 recording medium 2 motor 3 optical pickup 4 demodulation circuit 5 servo circuit 6 signal processing circuit 16 buffer RAM 17 recording RAM 18 operation input unit 19 control unit

Claims (4)

[Claims] 1. A recording medium on which various kinds of information such as video information and music information and index information corresponding to the information are recorded, while the index information is read from the recording medium and based on the read index information. In an information reproducing apparatus for reading and reproducing various kinds of information from the recording medium, operating means for instructing reproduction prohibition, and storage means for storing index information read from the recording medium based on the reproduction prohibition instruction by the operating means, When reproducing the recording medium, comparing means for comparing the index information read from the recording medium with the index information stored in the storage means, and various types recorded in the recording medium based on the comparison result by the comparing means. An information reproducing apparatus comprising: a control means for controlling reproduction / stop of information. 2. The operation means, together with a reproduction prohibition instruction,
A password can be input, and the storage means stores the index information read from the recording medium based on the reproduction prohibition instruction by the operation means and the password input by the operation means in association with each other, while the control is performed. Means, the index information read from the recording medium based on the comparison result by the comparison unit,
When it is determined that the index information stored in the storage means matches, when the password stored corresponding to the index information is input by the operation means, it is recorded in the recording medium. The information reproducing apparatus according to claim 1, which reproduces information. 3. The control means determines that the index information read from the recording medium and the index information stored in the storage means match based on the comparison result by the comparison means. The information reproducing apparatus according to claim 2, wherein when the password stored corresponding to the index information is input by the operating means, the index information and the password are erased from the storage means. 4. A display means for displaying various information reproduced from the recording medium is provided, and the operation means enables character information input together with a reproduction prohibition instruction, while the storage means is operated by the operation means. The index information read from the recording medium based on the reproduction prohibition instruction and the character information input by the reproducing means are stored in association with each other, and the control means stores the recording medium based on the comparison result by the comparing means. Index information read from
The character information stored corresponding to the index information is displayed on the display means when it is determined that the index information stored in the storage means matches. Item 4. The information reproducing apparatus according to any one of Items 3.