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:
Feb. 06, 2024

Filed:

May. 15, 2020
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventors:

Masato Ono, Musashino, JP;

Takahide Hoshide, Musashino, JP;

Yasushi Matsubara, Musashino, JP;

Shinji Fukatsu, Musashino, JP;

Kenichi Minami, Musashino, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 21/242 (2011.01); H04N 21/234 (2011.01); H04N 21/44 (2011.01); H04N 21/2343 (2011.01);
U.S. Cl.
CPC ...
H04N 21/242 (2013.01); H04N 21/2343 (2013.01); H04N 21/44 (2013.01);
Abstract

A synchronous shift of video/audio data between a plurality of display system devices is suppressed. A synchronous control device includes a coded-data adjustment unitor a video and audio data adjustment unitconfigured to perform frame adjustment based on a predetermined frame adjustment instruction by inserting predetermined frame data into a plurality of pieces of frame data in a chronological order or deleting a piece of frame data from the plurality of pieces of frame data, a video and audio data output unitconfigured to sequentially output each piece of frame data subjected to the frame adjustment, and a video and audio data output time-point adjustment unitconfigured to compare a reference time point for outputting each piece of the frame data with an output time point at which each piece of the frame data is output. In the synchronous control device, the video and audio data output time-point adjustment unitissues the frame adjustment instruction to insert predetermined frame data if the output time point precedes the reference time point by a threshold value or longer, and alternatively issues the frame adjustment instruction to delete a piece of frame data if the output time point is delayed from the reference time point by a threshold value or longer.


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