Data recording/reproducing device, data processing method and program

• US 20060215985A1
• Filed: 04/05/2004
• Published: 09/28/2006
• Est. Priority Date: 04/10/2003
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Enomoto, Yoshimi
• Application Number:
  US10/551,972
• Publication Number:
  US 20060215985A1
• Time in Patent Office: Days
• US Class Current: 386/252
• 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 20/00753 wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
• CPC Class Codes: G11B 20/00768 wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
• CPC Class Codes: G11B 20/10009 Improvement or modification of read or write signals
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 27/031 Electronic editing of digitised analogue information signals, e.g. audio or video signals
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 2005/91314 the copy protection signal being a pulse signal inserted in blanking intervals of the video signal, e.g. pseudo-AGC pulses, pseudo-sync pulses
• CPC Class Codes: H04N 2005/91328 the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection

Abstract

Permanent recording is prohibited when copy control information with never copy information is added to an audio-visual signal (SAVi_n) inputted to a processor (10), so that temporary recording is made possible in more situations. A data recording/reproducing device of this invention is provided with a means for determining whether or not the video data is to be recorded with changing from a permanent recording mode to a temporary recording mode, without recording being performed in the permanent recording mode, when never copy information and information of the permanent recording mode are received as additional information. The data recording/reproducing device is further provided with a means for instructing to record the video data on a recording portion (15) in the temporary recording mode when it is determined by the determining means to record the video data with changing to the temporary recording mode.

Claims

1. A data recording/reproducing device provided with a processor for receiving data including video data, first additional information to control a copy of the video data and second additional information to control a type of recording and/or reproducing the video data and for processing the received data, the processor having a recording portion capable of carrying out recording in a permanent recording mode for permanently recording the received video data or in a temporary recording mode for temporarily recording the received video data, characterized in that said processor comprises:

means for determining whether the video data is to be recorded with changing from the permanent recording mode to the temporary recording mode, without recording being performed in the permanent recording mode, when never copy information is received as the first additional information and information of the permanent recording mode is received as the second additional information; and

a means for instructing to record the video data on the recording portion in the temporary recording mode when it is determined by said determining means to record the video data with changing to the temporary recording mode.

2. The data recording/reproducing device as claimed in claim 1, characterized in that the video data is analog data.

3. The data recording/reproducing device as claimed in claim 1, characterized in that said processor has an ability to perform recording and reproducing at the same time, and further comprises a means for instructing to start reproducing the video data temporarily recorded on the recording portion before the end of recording in the temporary recording mode when the change from the permanent recording mode to the temporary recording mode is made and a means for erasing the video data in the recording portion immediately after information about stop of storing in the temporary recording mode is received.

4. A data processing method including a processing input data including video data, first additional information to control a copy of the video data and second additional information to control a type of recording and/or reproducing the video data, in which recording can be carried out in a permanent recording mode for permanently recording the received video data or in a temporary recording mode for temporarily recording the received video data, characterized in that said processing includes:

determining whether or not the video data is to be recorded with changing from the permanent recording mode to the temporary recording mode, without recording being performed in the permanent recording mode, when never copy information is received as the first additional information and information of the permanent recording mode is received as the second additional information; and

instructing to record the video data in the temporary recording mode when it is determined to record the video data with changing to the temporary recording mode.

5. A program operable on a computer for processing data including video data, first additional information to control a copy of the video data and second additional information to control a type of recording and/or reproducing of the video data, characterized in that said program comprises the functions for:

determining whether or not the video data is to be recorded with changing from a permanent recording mode to a temporary recording mode, without recording being performed in the permanent recording mode, when never copy information is received as the first additional information and information of the permanent recording mode is received as the second additional information; and

instructing to record the video data in the temporary recording mode when it is determined to record the video data with changing to the temporary recording mode.