DVD recorder and recording and reproducing device

• US 20050270948A1
• Filed: 06/01/2005
• Published: 12/08/2005
• Est. Priority Date: 06/02/2004
• Status: Abandoned Application

• Current Assignee: Funai Electric Co., Ltd.
• Original Assignee: Funai Electric Co., Ltd.
• Inventors: Fujishima, Yoshikazu
• Application Number:
  US11/141,042
• Publication Number:
  US 20050270948A1
• Time in Patent Office: Days
• US Class Current: 369/53.210
• CPC Class Codes: G11B 19/122 involving the detection of an identification or authentication mark record carriers indicating unauthorised or prior use G11B23/28
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 7/00736 Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082

Abstract

A recording and reproducing device is provided for recording and reproducing data on an optical disk having a cutting data area, which is an area being data rewritable and has data displayed by laser cutting in a radiating direction. In the recording and reproducing device, when an instruction of making reproducing of the optical disk impossible is input, data is deleted along a track by a pickup in a range where the cutting data area is formed in a radius direction of the optical disk.

Claims

1. A DVD recorder for recording and reproducing data on a DVD having an NBCA in which data is rewritable and the data is displayed by laser cutting in a radiating direction, the DVD recorder comprising;

a password storage unit that stores a password inputted in advance, wherein a password input is requested when an instruction of making reproducing of the DVD impossible is input,

wherein a display for requesting to confirm whether to perform the process of making the reproducing of the DVD impossible is performed when the input password accords with the password stored in the password storage unit, and

wherein data is deleted along a track by a pickup in a range where the NBCA is formed in a radius direction of the DVD when the instruction of performing to make the reproducing of the DVD is input in response to the display.

2. A recording and reproducing device for recording and reproducing data on an optical disk having a cutting data area in which data is rewritable and the data is displayed by laser cutting in a radiating direction,

wherein when an instruction of making reproducing of the optical disk is input, and

data is deleted by a pickup in a range where the cutting data area is formed in a radius direction of the optical disk.

3. The recording and reproducing device according to claim 2, comprising:

a password storage unit that stores a password inputted in advance,

wherein when an input password accords with the password stored in the password storage unit, a delete operation is performed.

4. The recording and reproducing device according to claim 2,

wherein when an instruction of making reproducing of the optical disk impossible is input, a display for requesting to confirm whether to perform the process of the making the reproducing of the optical disk impossible is performed, and

wherein when an instruction of making the reproducing of the optical disk impossible is input in response to the display, the delete operation is performed.

5. The recording and reproducing device according to claim 3,

wherein when an instruction of making reproducing of the optical disk impossible is input, a display for requesting to confirm whether to perform the process of the making the reproducing of the optical disk impossible is performed, and

wherein when an instruction of making the reproducing of the optical disk impossible is input in response to the display, the delete operation is performed.