公开(公告)号：US5656894A

公开(公告)日：1997-08-12

申请号：US543074

申请日：1995-10-13

申请人： Yasuo Murakami ,  Kazuyuki Iimura ,  Kenji Ano

发明人： Yasuo Murakami ,  Kazuyuki Iimura ,  Kenji Ano

IPC分类号： H04N3/223 ,  H04N3/233 ,  H01J29/56

CPC分类号： H04N3/223 ,  H04N3/2335

摘要： The difference signal indicating a difference between the output of the horizontal deflection circuit unit and a desired horizontal raster signal is converted into a digital signal corresponding to the difference signal by the A/D converter. The converted digital signal is outputted to the digital signal processor. The digital signal processor performs a feedback control of raster width by digital operations. The digital signal processor outputs the result signal of the operation to the D/A converter where the result signal is converted into an analog result signal. The analog signal is sent to the horizontal deflection circuit unit where the power to be supplied to the deflection yoke is controlled.

摘要翻译： 指示水平偏转电路单元的输出与期望的水平光栅信号之间的差异的差分信号被A / D转换器转换成对应于差分信号的数字信号。 转换的数字信号被输出到数字信号处理器。 数字信号处理器通过数字操作执行光栅宽度的反馈控制。 数字信号处理器将结果信号转换成模拟结果信号，将操作的结果信号输出到D / A转换器。 模拟信号被发送到水平偏转电路单元，其中控制向偏转线圈提供的功率。