| 摘要 |
PURPOSE: A digital convergence circuit is provided to optimize the capacity of a memory by interpolating convergence correction data, inserting a line between scanning lines, and adjusting a convergent correction rate in real time. CONSTITUTION: A digital convergence circuit comprises a clock generating unit(1) for generating a clock corresponding to on a horizontal blanking signal, an address generating unit(2) for generating an address by detecting a vertical blanking signal corresponding to the clock, a memory(3) for outputting convergence correction data corresponding to the address, a signal interpolating unit(10) for interpolating the convergence correction data of the memory, a signal processing unit(4) for converting RGB(Red, Green, and Blue) signals into parallel data, a digital/analog converting unit(5) for converting the output of the signal processing unit into analog signals, a low band pass filter(6) for waveform shaping the output of the digital/analog converting unit after removing high band elements, a deflection unit(7) for amplifying the output of the low band pass filter and outputting the amplified output to a yoke coil(CY), and a central processing unit(8) for outputting convergence correction data by operating the convergence adjusting point data and correcting the prior convergence correction data.
|
