Kabushiki Kaisha Toshiba

Shin Arai

Koichi Sato

Yasuhiro Hori

According to embodiments, a synchronization signal generating device includes: a cycle measuring unit configured to measure the vertical synchronization interval of the input video signal; a phase difference detecting unit configured to detect a phase difference between an input vertical synchronization signal based on the input video signal and the display vertical synchronization signal; and a vertical cycle determining unit configured to determine a cycle of the display vertical synchronization signal based on a measurement result of the cycle measuring unit and a detection result of the phase difference detecting unit so that the phase difference is decreased within the range of the compensation interval, and to determine 1/n of the cycle of the display vertical synchronization signal as a cycle of an n-times speed vertical synchronization signal.

Synchronization signal generating device and display apparatus

A video-signal processor includes: a first correlation detector obtaining a correlation value of every symmetric pair of pixels positioned in point-symmetry around an interpolation pixel on an interpolation line interpolated between two real lines; a second correlation detector obtaining a correlation value of every pair of pixels for the symmetric pair of pixels and parallel pair(s) of pixels positioned in a direction parallel to a direction of the symmetric pair of pixels; a correlation-direction deciding unit deciding one of a correlation direction based on the correlation value from the first correlation detector and that based on the correlation value from the second correlation detector as a correlation direction which is a direction of the pair of pixels used for generating the interpolation pixel; and an interpolation pixel generator generating a pixel signal of the interpolation pixel using a pair of pixels based on decision result of the correlation-direction deciding unit.

Growing community of inventors

Tokyo, Japan

Shin Arai