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.
Patent No.:
Date of Patent:
Mar. 27, 2001
Filed:
Nov. 16, 1998
Kyoung-Hwan Kim, Yongin, KR;
Samsung Electronics, Co. LTD, , KR;
Abstract
A digital deflection processing apparatus and method for a cathode ray tube are suitable for digitally and programmably correcting distortion in the cathode ray tube. The apparatus includes a synchronous signal and clock signal generating portion for generating a first composite synchronous signal extracted from a composite video broadcast signal or a third composite synchronous signal selected from not less than one second composite synchronous signals. A synchronous signal phase compensating portion lags or leads the phase of the third composite synchronous signal, and outputs the lagged or led third composite synchronous signal as a deflection composite synchronous signal. A coordinate value generating portion operates predetermined values with a result counted by the deflection composite synchronous signal, and outputs the operation result as X and Y axis coordinate values. A horizontal drive signal generating portion determines rising and falling edges of a horizontal drive signal using a phase difference between a fly back pulse and the horizontal drive signal, a deflection horizontal synchronous signal, a horizontal correcting signal, and a predetermined duty value. An interpolation value calculating portion calculates the interpolation values of X and Y axes coordinate values using distortion correcting functions calculated by a time division method in response to selection signals, and outputs the calculated interpolation values as a horizontal correct signal, a dynamic focus signal, a vertical sawtooth drive signal, or an east-west distortion compensation signal. An output adjusting portion adjusts the gains of the vertical sawtooth drive signal and the east-west distortion compensation signal using predetermined values and the electric high tension of a cathode ray tube. A controlling portion outputs a synchronous control signal and predetermined values.