Recording Device and Method

• US 20080101766A1
• Filed: 09/27/2005
• Published: 05/01/2008
• Est. Priority Date: 09/29/2004
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Ichikawa, Akio, Shimizu, Yukitaka, Kihara, Shinjiro
• Granted Patent: US 8,170,399 B2
• Time in Patent Office: Days
• US Class Current: 386/96
• 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 2005/91364 the video signal being scrambled
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/43622 Interfacing an external recording device
• CPC Class Codes: H04N 21/4398 involving reformatting operations of audio signals details of audio signal transcoding G10L19/173
• CPC Class Codes: H04N 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: H04N 7/163 by receiver means only
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

To enable a recording device recording a video/audio signal and information necessary for utilizing the video/audio signal to copy the video/audio signal with the converted bit rate, encoding format, etc., to another recording device when utilizing the video/audio signal by the another recording device, and to move only the information necessary for utilizing the video/audio signal between the recording device and the another recording device. A recording device comprises: an input portion that inputs a video/audio signal; a recording portion that records the video/audio signal and information necessary for utilizing the video/audio signal; and a converting portion that converts the recorded video/audio signal. The recording device, leaving the original video/audio signal, copies the video/audio signal whose bit rate, encoding format, etc., have been converted at the converting portion to another recording device and moves the information necessary for utilizing the video/audio signal to the another recording device. After the video/audio signal is utilized by the another recording device, only the information necessary for utilizing the video/audio signal is moved again from the another recording device to the recording device.

Claims

1. A recording device comprising:

an input portion means that inputs a video/audio signal;

a recording portion that records a video/audio signal and information necessary for utilizing the video/audio signal; and

a converting portion that converts a video/audio signal, the device copying the video/audio signal recorded in the recording portion to another recording device while converting with the converting portion, the device moving the information necessary for utilizing the video/audio signal to the another recording device.

3. The recording device of claim 1 or 2, wherein the input portion includes a portion for receiving transmission data with a copy control signal overlapped.

4. The recording device of claim 1 or 2, wherein the input portion includes a portion for detachably mounting a recording medium that records a video/audio signal and information necessary for utilizing the video/audio signal to perform read/write from/into the recording medium.

5. The recording device of claim 1 or 2, comprising an encrypting portion that encrypts the video/audio signal from the input portion and records it in the recording portion, wherein the information necessary for utilizing the video/audio signal is license information that includes information necessary for decrypting the encrypted video/audio signal and usage control information relating to the video/audio signal and is recorded in a predetermined secure area of the recording portion or the another recording device.

6. The recording device of claim 1 or 2, comprising an encrypting portion that encrypts the video/audio signal from the input portion and records it in the recording portion, wherein the information necessary for utilizing the video/audio signal includes at least one of an encrypted decryption key generated by encrypting a decryption key of the encrypted video/audio signal and usage control information relating to the video/audio signal and is recorded in a predetermined secure area of the recording portion or the another recording device.

7. The recording device of claim 1 or 2, wherein the another recording device is a detachable recording medium and wherein the recording device includes a portion i for attaching/detaching the another recording device.

8. The recording device of claim 1 or 2, wherein the recording device and the another recording device can record reproduction start position information of the video/audio signal and wherein when copying the video/audio signal to the another recording device, the recording device also copies the reproduction start position information.

9. The recording device of claim 1 or 2, wherein the recording portion can record a conversion condition at the time of copying to the another recording device.

2. A recording device comprising:

an input portion that inputs a video/audio signal;

a recording portion that records a video/audio signal and information necessary for utilizing the video/audio signal; and

a converting portion that converts the video/audio signal, when the video/audio signal from the input portion is recorded in the recording portion, the device converting the video/audio signal with the converting portion, the device recording and retaining the video/audio signal after the conversion and the video/audio signal before the conversion in the recording portion, the device copying the converted video/audio signal to another recording device, the device moving the information necessary for utilizing the video/audio signal to the another recording device.

10. A recording method of recording a video/audio signal from a recording device to another recording device, the method comprising the steps of:

inputting a video/audio signal;

recording the input video/audio signal and information necessary for utilizing the video/audio signal;

copying the recorded video/audio signal to the another recording device while converting; and

moving the information necessary for utilizing the video/audio signal to the another recording device.

11. A recording a video/audio signal from a recording device to another recording device, the method comprising the steps of:

inputting a video/audio signal;

recording the input video/audio signal and information necessary for utilizing the video/audio signal;

converting the input video/audio signal;

recording the converted video/audio signal;

copying the converted video/audio signal to the another recording device; and

moving the signal to the another recording device.