Title:
SYSTEM AND METHOD FOR CREATING TRICK PLAY VIDEO STREAMS FROM COMPRESSED NORMAL PLAY VIDEO BITSTREAM
Document Type and Number:
Japanese Patent JP2012142973
Kind Code:
A
Abstract:
To provide a system for generating trick play video streams, such as fast forward and fast reverse video streams, from an MPEG compressed normal play bitstream.
The system receives a compressed normal play bitstream and filters the bitstream by extracting and saving only portions of the bitstream. The system preferably extracts I-frames and sequence headers, including all weighting matrixes, from the MPEG bitstream and stores the information in a new file. The system then assembles or collates the filtered data in a proper order to generate a single assembled bitstream. The system also ensures that the weighting matrixes properly correspond to the respective I-frames.
Inventors:
ZDEPSKI JOEL
KALLURI RAMA
PAGE HOWARD
KAUBISCH WOLF-HASSO
KALLURI RAMA
PAGE HOWARD
KAUBISCH WOLF-HASSO
Application Number:
JP2012040285A
Publication Date:
July 26, 2012
Filing Date:
February 27, 2012
Export Citation:
Assignee:
ORACLE AMERICA INC
OPENTV INC
OPENTV INC
International Classes:
H04N5/76; H04N7/32; G11B27/034; H04N5/783; H04N5/92; H04N5/93; H04N7/26; H04N21/2343; H04N21/2387; H04N21/845; H04N9/804; H04N21/472
Domestic Patent References:
| JPH0832934A | 1996-02-02 | |||
| JPH0832933A | 1996-02-02 | |||
| JPH0846902A | 1996-02-16 | |||
| JP2008054330A | 2008-03-06 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Hiroyuki Tomita
Osamu Hoshino
Motoharu Nakanishi
Yasushi Kobayashi
Hiroyuki Tomita
Osamu Hoshino
Motoharu Nakanishi