KR100624282B1 - Security dvd record/reproducing apparatus for managing dvd disc information by use of image code and method thereof - Google Patents

Abstract

The present invention relates to a secure DVD-RW system and a method for managing security of a DVD disc by image-coding content information of a recorded DVD disc to be managed together with the DVD disc. That is, according to the present invention, various types of information to be recorded directly on the disc by managing a DVD disc by attaching the image coded label of the content information of the DVD disc to the top surface of the DVD disc in the secure DVD recording / playback system Information management is useful because the information is not leaked to the outside, and the coded information is used as a double lock by displaying the DVD disc contents information only to authorized users so that decoding can be performed by inputting a password when playing a DVD disc. Efficient secure disk management is enabled.

Description

SECURITY DVD RECORD / REPRODUCING APPARATUS FOR MANAGING DVD DISC INFORMATION BY USE OF IMAGE CODE AND METHOD THEREOF}

1 is a flowchart illustrating a DVD disc recording management control in a conventional secure DVD recording / playback apparatus;

2 is a schematic block diagram of a secure DVD recording / playback apparatus according to an embodiment of the present invention;

3 is a flowchart illustrating a DVD disc recording management control according to an embodiment of the present invention;

4 is an exemplary image code label according to an embodiment of the present invention;

5 is a front panel configuration of a secure DVD recording / playback apparatus according to an embodiment of the present invention.

<Brief description of the major symbols in the drawings>

200: DVD disc 202: pickup portion

204: SLM 206: SPM

208: motor drive unit 210: RF unit

212: Servo unit 214: DSP unit

216: microcomputer 217: decoder

218: external camera 219: encoder

220: TV receiver 222: Image code generation unit

224: key input unit 226: memory unit

228 label printer 230 code reading camera

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital versatile disk (DVD) recording / reproducing system. In particular, the present invention relates to a DVD disc by image-coding content information of a DVD disk which has been recorded in a DVD recording / reproducing system for recording a surveillance video input from a security surveillance camera. The present invention relates to a security DVD-RW system and a DVD disk security management method to be managed together with.

In general, a DVD recording / reproducing system refers to a device for reproducing and displaying data recorded on an optical disc such as a DVD or HD-DVD, in which a higher density of data is recorded than a CD. DVD titles can record data at a higher density than CDs, and have various functions compared to conventional video media by various additional data as well as image quality.

Recently, the DVD recording / playback system has been used as a security surveillance video recording device, but the playback quality and data backup are more advantageous than a VCR or the like which is conventionally used for recording security surveillance video. Is being used.

However, in the conventional secure DVD recording / reproducing system, after the final recording of the DVD disc is completed, various contents information about the image recorded on the DVD disc is displayed and managed on the top or cover of the disc in the process of storing the completed DVD disc.

FIG. 1 illustrates a flow of management control after recording a DVD disc in a conventional secure DVD recording / reproducing system. Referring to FIG. 1, a conventional DVD-RW disc is loaded to start secure recording (S100). If the disc becomes full or the recording ends, eject the disc (S102) and write the DVD disc contents information such as recording start and end date, place, camera number, and worker on the top surface or cover of the disc (S104). ), The user searches for the disc using the contents information written on the top surface or cover of the DVD disc as above.

Accordingly, if the user wants to use the information of the DVD disk after the recording of the DVD disk is completed, there is inconvenience in management such as the user having to find the desired DVD disk by using the contents information indicated on the surface of the DVD disk as described above.

It is therefore an object of the present invention to provide a secure DVD-RW system and a method for managing security of a DVD disc by image-coding content information of a recorded DVD disc to be managed together with the DVD disc.

According to an aspect of the present invention, there is provided a secure DVD recorder / player for image-coding and managing content information of a DVD disc, comprising: a decoder unit for decoding and outputting an external audio / video signal input from a security surveillance camera; A DSP for converting digital data input from the audio / video decoder into a recording data format for recording a DVD disc, an optical pickup unit for recording audio / video data input from the DSP onto a DVD disc through optical pickup; A microcomputer for converting audio / video data from an external camera input through the decoder unit into a data format for recording a DVD disc through the DSP, and controlling the optical pickup unit to record and store the recording on a DVD disc; and the security DVD disc. Contents of the DVD disc from the microcomputer when recording is completed An image code generator for receiving information and generating an image code including the content information, and a label printer for printing and outputting an image code including content information of a recorded DVD disc generated from the image code generator; Characterized in that.

In another aspect, the present invention provides a method for managing a recorded DVD disc in a secure DVD recording / playback system, comprising: (a) decoding a surveillance video input from an external camera according to a recording command from a user; and (b) the decoded digital data. Converting the data into a recording data format for recording a DVD disc; (c) recording the converted digital audio / video data onto a DVD disc through optical pickup; and (d) when the recording of the DVD disc is completed. Generating an image code including content information of the DVD disc; and (e) printing the generated image code and managing the same with the recorded DVD disc.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

2 is a schematic block diagram of a secure DVD recording / playback system to which an embodiment of the present invention is applied.

Referring to FIG. 2, the encoder 219 encodes an audio / video signal of a DVD data format applied from the codec 215 and applies the encoded audio / video signal to the TV receiver 220 to securely record the surveillance. Make the screen visible to the user.

The decoder 217 inputs and decodes an external audio / video signal input from the security surveillance camera and then applies it to the codec unit 215.

The DSP unit 214 converts an audio / video signal from an external camera input from the codec unit 215 into a DVD disc recording format to record audio / video data for security surveillance on the DVD disc 200. The binary data read through the optical pickup unit 202 is restored to DVD audio / video data and applied to the encoder unit 219 through the codec unit 215. In this case, the data converted from the DSP 214 into the DVD disc recording format is amplified by the pickup recording RF amplifier 210 and then applied to the optical pickup unit 202 to be recorded on the DVD disc 200. At the time of reproduction, it is read from the optical pickup unit 202 and amplified by the pickup reproduction RF amplifier 210 and then applied to the DSP 214.

The sled motor (SLM) 204 moves the pickup section 202 to an arbitrary position on the DVD recording / playback disk 200. Spindle motor (SPM) 206 drives the DVD disc 200 in rotation. The motor drive unit 208 applies the appropriate driving voltage to the spindle motor 206 under the control of the servo unit 212 to drive the DVD disc 200 in rotation, and to the thread motor 204. The optical pickup unit 202 is moved by applying an appropriate driving voltage. The servo unit 212 receives information necessary for servo control from the RF unit 210 to control the driving of the motor drive unit 208 to perform stable servo.

The memory unit 226 stores various operation program data necessary for the operation of the microcomputer 216, and temporarily stores data generated according to the operation of the microcomputer 216. The key input unit 224 includes a plurality of numeric keys and function keys for controlling the operation of each part of the DVD recording / playback apparatus. The key input unit 224 generates corresponding key data and inputs it to the micom 216 when a user inputs a key. .

The microcomputer 216 converts audio / video data from the external camera 218 input through the decoder unit 217 into a recording format for recording a DVD disc through the DSP 214, and then the optical pickup unit 202. The DVD disc 200 is recorded on the recording medium.

An image code generator 222 receives content information of the DVD disc from the microcomputer 216 when the recording of the security DVD disc is completed, and generates an image code including the content information. A label printer 228 prints and outputs an image code including content information of a recorded DVD disc generated from the image code generator 222.

The code reading camera 230 captures and inputs the image code generated by the image code generating unit 222 to the microcomputer 216. Accordingly, the microcomputer 216 is a DVD disc to which the image code label is attached. When loading the 200, the image code input through the code reading camera 230 is read to display the content information of the corresponding DVD disc. At this time, the microcomputer 216 performs user authentication by inputting a password when displaying the content information of the DVD disc according to the image code reading so as to display the DVD disc content information only to the authenticated user.

3 illustrates a management control flow of a recorded DVD disc in a secure DVD system according to an exemplary embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 and 3.

First, when the DVD disc security surveillance video recording command from the user is input, the microcomputer 216 may provide the decoder unit 217 with a video / audio signal of the surveillance video input from the external camera 218 according to the recording command from the user. After decoding through, the codec unit 215 converts the decoded digital data into a recording data format for recording a DVD disc and starts recording on the DVD disc 200 through the optical pickup unit 202 (S300). .

Then, when the recording space of the DVD disc is full and the data cannot be recorded anymore or the recording ends, the microcomputer 216 records the start and end date and time of recording of the current DVD disc, external camera number, location, and workers. The content information of the completed DVD disc is image coded through the image code generation unit 222 (S302).

FIG. 4 illustrates an example of an image code including content information of a DVD disc generated from the image code generation unit 222. The image code generated as described above is printed by the label printer 228. Output is via an image label slot 502 implemented in the front panel 500 of the DVD recording / playback system as shown in FIG. 5, thereby allowing the user to attach an image code label to the top surface of the DVD disc. (S304).

The DVD disc thus managed with the image code label is then loaded through the disc slot 504 into a DVD recording / playback system for retrieval from the user, and when the DVD disc is loaded, the microcomputer 216 reads the code. The image code input through the camera 230 is read to display the content information of the DVD disc. At this time, the microcomputer 216 performs user authentication by inputting a password when displaying the content information of the DVD disc according to the image code reading so that only the authenticated user displays the DVD disc content information (S306).

Accordingly, the user can easily search the storage information and various additional information of the DVD disk by checking the content information of the DVD disk displayed on the monitor screen.

As described above, in the present invention, the DVD DVD is managed by recording an image coded label on the top surface of the DVD disc in which the security video is recorded, thereby managing the DVD disc. Information management is useful because various information is not leaked to the outside, and the coded information is activated by double lock by displaying the DVD disc contents information only to authorized users by decoding through password input when playing DVD disc. More secure disk management.

Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the claims rather than by the described embodiments.

As described above, in the present invention, a DVD recording / playback system manages a DVD disc by attaching a label encoding an image coded content information of the DVD disc on the top surface of the DVD disc on which the security image is recorded, thereby directly recording the disc. Information management is useful because various information to be prevented from leaking to the outside, and the above-mentioned coded information can be decoded by inputting a password when playing DVD discs so that only the authorized user displays the DVD disc contents information. It can be utilized to secure more efficient disk management.

Claims (5)

A secure DVD recorder / player for image coding and managing content information of a DVD disc, A decoder for decoding and outputting an external audio / video signal input from a security surveillance camera; A DSP for converting digital data input from the decoder into a recording data format for recording a DVD disc; An optical pickup unit for recording audio / video data input from the DSP to a DVD disc through optical pickup; A microcomputer for converting audio / video data from an external camera input through the decoder unit into a data format for recording a DVD disc through the DSP, and then controlling and storing the optical pickup unit in a DVD disc; An image code generation unit configured to receive image information of the DVD disc from the microcomputer and to generate an image code including the content information when the recording of the security DVD disc is completed; A label printer for printing and outputting an image code including content information of a recorded DVD disc generated from the image code generation unit DVD recording / playback device for security. The method of claim 1, The DVD recording / reproducing apparatus further comprises a code reading camera for capturing and inputting the image code generated by the image code generating unit to the microcomputer. The method of claim 2, The microcomputer reads the image code input through the code reading camera when the DVD disc with the image code label is attached to display the content information of the DVD disc. . The method of claim 3, And the microcomputer performs user authentication by inputting a password when displaying the content information of the DVD disc according to the reading of the image code, thereby displaying the DVD disc contents information only to the authenticated user. A method of managing a recorded DVD disc in a secure DVD recording / playback system, (a) decoding a surveillance video input from an external camera according to a recording command from a user; (b) converting the decoded digital data into a recording data format for recording a DVD disc, (c) recording the converted digital audio / video data onto a DVD disc through optical pickup; (d) generating an image code including content information of the DVD disk upon completion of recording of the DVD disk; (e) printing the generated image code and managing it with the recorded DVD disc The method of managing a recorded DVD disc in a secure DVD recording / playback system comprising a.

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