Title:
コンテンツ記録装置、コンテンツ編集装置、コンテンツ再生装置、コンテンツ記録方法、コンテンツ編集方法、および、コンテンツ再生方法
Document Type and Number:
Japanese Patent JP7022947
Kind Code:
B2
Abstract:
A content recording apparatus includes an obtaining unit which obtains a content having a variable-length packet structure, an encrypter which generates encrypted data by encrypting the content, and a recorder which records the encrypted data in a block unit having a fixed length in a recording medium. The encrypted data includes an invalidated region unnecessary for reproduction of the content. The recorder records a size of the invalidated region in the recording medium.
Inventors:
Toshiyuki Fukushima
Tokuo Nakatani
Nobuyuki Enoki
Kazuhiro Mochinaga
Masaya Yamamoto
Tokuo Nakatani
Nobuyuki Enoki
Kazuhiro Mochinaga
Masaya Yamamoto
Application Number:
JP2018551475A
Publication Date:
February 21, 2022
Filing Date:
February 09, 2018
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H04L9/36; G06F21/60; G09C1/00; G11B20/10; G11B27/00
Domestic Patent References:
| JP2010145691A | ||||
| JP2013009276A | ||||
| JP2006220747A |
Foreign References:
| WO2009072181A1 |
Other References:
青木秀一,次世代放送システムのメディアトランスポート技術,NHK技研R&D,日本,日本放送協会,2013年07月15日,第140号,p.22-31
Attorney, Agent or Firm:
Hiroi Arai
Teraya Eisaku
Shinichi Michizaka
Teraya Eisaku
Shinichi Michizaka