| US 7,551,839 B2 | ||
| Method of generating video reproduction synchronizing signal, program for generating video reproduction synchronizing signal, timing control apparatus, method of synchronously reproducing video and audio, program for synchronously reproducing video and audio, and apparatus for synchronously reproducing video and audio | ||
| Norihiko Yamada, Okaya (Japan); Mitsuhiro Inazumi, Shiojiri (Japan); and Hiroshi Hasegawa, Chino (Japan) | ||
| Assigned to Seiko Epson Corporation, Tokyo (Japan) | ||
| Filed on Jul. 12, 2005, as Appl. No. 11/178,486. | ||
| Claims priority of application No. 2004-207180 (JP), filed on Jul. 14, 2004; and application No. 2004-207188 (JP), filed on Jul. 14, 2004. | ||
| Prior Publication US 2006/0012709 A1, Jan. 19, 2006 | ||
| Int. Cl. H04N 7/00 (2006.01) | ||
| U.S. Cl. 386—96 [386/46; 348/515] | 8 Claims |
| 1. A method of generating a video reproduction synchronizing signal to generate a video reproduction synchronizing signal
to reproduce video data and audio data in synchronization with each other, the method comprising:
acquiring output processing end timing for output to an audio reproducing unit for one-frame equivalent audio data that is
equivalent to a display period for one frame of video data;
generating the video reproduction synchronizing signal every time the output processing end timing is acquired; and
setting the number of output samples of one-frame equivalent audio data for each frame of video data, the setting including
determining the number of output samples by referring to a table describing rules to determine the number of output samples
on the basis of a sampling rate of audio data and a frame rate of video data;
the acquiring including executing acquiring for each frame of video data on the basis of the number of output samples set
by the setting.
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