INFORMATION RECORDING APPARATUS AND METHOD, INFORMATION REPRODUCING APPARATUS AND METHOD, AND COMPUTER PROGRAM

Japanese Patent JP2005322297

A

To view and listen appropriately respective content information of HD and SD while protecting appropriately copyright.

An information recording apparatus (1) is provided with a down-convert means (32) down-converting first content information of first reproduction quality (HD) recorded in a first recording medium (10) and generating second content information of second reproduction quality (SD) with low definition, a first recording means (21) recording second content information in a second recording medium (20), a first erasing means (11) erasing the first content information recorded in the first recording medium when the second content information is recorded in the second recording medium, and a scramble means (38) generating scramble information by scramble-processing the first content information based on the prescribed scramble key.

YAMAGATA KENJI
NAKAMURA HIROSHI
SATO KIYOUTARO
TADA KENICHIRO
MIURA TOMOHIRO
TANIGAWA TOSHIRO
MIYAGAWA AKIRA
AOKI TAKESHI
HASHIMOTO SHINYA

JP2004138443A

November 17, 2005

May 07, 2004

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PIONEER ELECTRONIC CORP

G06F12/14; G06F21/10; G06F21/60; G06F21/62; G10L19/00; G11B20/00; G11B20/10; G11B20/12; G11B27/00; G11B27/034; H04N5/76; H04N5/765; H04N5/775; H04N5/781; H04N5/85; H04N5/913; H04N9/804; H04N9/82; (IPC1-7): G11B20/10; G06F12/14; G10L19/00; G11B20/12; G11B27/00; G11B27/034

Tatsuo Egami
Satoshi Nakamura

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