Title:
PACKET TRANSMITTER
Document Type and Number:
WIPO Patent Application WO/2007/010779
Kind Code:
A1
Abstract:
A packet transmitter for transmitting a widely used packet such as an IP packet containing
a content protected by a content protection technique such as DTCP and providing
various EPG information. Using the metadata in an AV stream, the output mode,
encryption mode encrypted information header addition of a content including
video, audio, and data contained in the AV stream are controlled (407). With this,
interconnection compatibility between the packet transmitter and receiver
is ensured while keeping the secrecy (414). When the received content of a digital
television broadcast is used as an AV stream, a channel is selected from the received
full-transport stream (409), and thereby the partial transport stream is extracted
and constructed (410). EPG information can be selected not only from the SI information
contained in the digital broadcast signal but also from information sources
such as the EPG dedicated channel and the Internet (412).
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Inventors:
MORIOKA YOSHIHIRO
Application Number:
PCT/JP2006/313722
Publication Date:
January 25, 2007
Filing Date:
July 11, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
MORIOKA YOSHIHIRO
MORIOKA YOSHIHIRO
International Classes:
G06F13/00; H04N7/167; H04N7/24
Domestic Patent References:
| WO2004010670A1 | 2004-01-29 | |||
| WO2005057865A1 | 2005-06-23 |
Foreign References:
| JP2001285834A | 2001-10-12 | |||
| JPH11261908A | 1999-09-24 | |||
| JP2005012527A | 2005-01-13 | |||
| JP2004118152A | 2004-04-15 | |||
| JP2004328463A | 2004-11-18 |
Attorney, Agent or Firm:
NII, Hiromori (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-k, Osaka-city Osaka 11, JP)
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