Title:
【発明の名称】ビデオ処理およびビデオ信号を変換するための方法
Document Type and Number:
Japanese Patent JPH09508512
Kind Code:
A
Abstract:
A method for converting between relatively close field rates of perhaps 60 Hz and 59.94 Hz, monitors the phase difference between input and output field rates. Initially, output fields are created by synchronizing input fields. As the measured phase passes a threshold, the method switches to interpolation mode for a short, fixed interval and then returns to synchronization. The method offers much of the sharpness associated with simple synchronization but avoids the visible discontinuities of field drops or repeats.
Inventors:
Wilson, Peter
Weston, Martin
Steve Downer
Weston, Martin
Steve Downer
Application Number:
JP52044895A
Publication Date:
August 26, 1997
Filing Date:
February 01, 1995
Export Citation:
Assignee:
Snell and Wilcox Limited
International Classes:
H04N5/253; H04N7/01; H04N7/26; (IPC1-7): H04N7/01; H04N5/253
Attorney, Agent or Firm:
Yosuke Goto (2 outside)