The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 17, 2005

Filed:

Aug. 17, 2001
Applicants:

Tsuyoshi Hanamura, Tokyo, JP;

Isao Nagayoshi, Tokyo, JP;

Hiroyuki Kasai, Tokyo, JP;

Hideyoshi Tominaga, Shinjuku-ku, Tokyo, JP;

Inventors:

Tsuyoshi Hanamura, Tokyo, JP;

Isao Nagayoshi, Tokyo, JP;

Hiroyuki Kasai, Tokyo, JP;

Hideyoshi Tominaga, Shinjuku-ku, Tokyo, JP;

Assignee:

Other;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N007/12 ; H04N011/02 ;
U.S. Cl.
CPC ...
Abstract

Herein disclosed a bit stream separating apparatus for inputting and transcoding an original MPEG-2 bit stream, and separating the transcoded MPEG-2 bit stream to generate a transcoded MPEG-2 bit stream and a differential bit stream, which is a differential bit stream between the original MPEG-2 bit stream and the transcoded MPEG-2 bit stream, and a bit stream merging apparatus for inputting and merging the transcoded MPEG-2 bit stream and the differential bit stream to reconstruct the original MPEG-2 bit stream. The bit stream separating apparatus makes it possible for the bit stream merging apparatus to reconstruct the original, high quality, MPEG-2 bit stream from the transcoded MPEG-2 bit stream already received and the differential bit stream, thereby eliminating the effort and time to send the original MPEG-2 bit stream again.


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