发明名称 |
Circuit and method for controlling delay of dynamic focus signal |
摘要 |
A circuit and a method for controlling a delay of a dynamic focus signal are provided. The delay control circuit includes a pulse center detecting circuit, a first delay control signal generating circuit, and a selection circuit. The pulse center detecting circuit generates a center detecting signal that detects a pulse center of a first pulse signal. The first delay control signal generating circuit generates a first delay control signal having a first logic level or a second logic level depending on the result of a comparison of a first comparative signal level generated in a form of a first degree function in response to the first pulse signal with a predetermined second comparative signal level. The selection circuit selects one of the center detecting signal and the first delay control signal in response to a predetermined selection signal and generates the selected signal as a second delay control signal that controls an amount of delay time of the dynamic focus signal. The delay control circuit further includes a digital-to-analog converter that generates the second comparative signal. A point at which the first delay control signal is generated is controlled in response to changes of the second comparative signal level. In the circuit and method for controlling a delay of a dynamic focus signal, an amount of delay time in the process where a dynamic focus signal is amplified in a CRT monitor is controlled.
|
申请公布号 |
US2003164690(A1) |
申请公布日期 |
2003.09.04 |
申请号 |
US20030359954 |
申请日期 |
2003.02.06 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE JAE-HOON |
分类号 |
H04N3/23;G09G1/04;H04N3/26;(IPC1-7):G09G1/04 |
主分类号 |
H04N3/23 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|