摘要:
A touch detection method for capacitive touch screens, includes: generating a waveform signal and transmitting the waveform signal to a capacitor under detection, by a transmitting end; converting the waveform signal transmitted by the transmitting end into charges, and transferring the charges to a detection circuit, by the capacitor under detection; and receiving the charges transferred by the capacitor under detection, generating an output signal, determining whether the touch takes place by performing detection processing on the output signal, and resetting the output signal of the detection circuit to a reference level prior to a variation in an edge of the waveform signal, by the detection circuit, where a phase clock of the detection circuit and a phase clock of the transmitting end are kept synchronous.
摘要:
A method for converting interleaved video frames to progressive video frames is disclosed. Each interleaved frame includes two interleaved fields and each interleaved field includes plural pixels. The method comprises fetching a previous interleaved field, a current interleaved field, a next interleaved field, and the second next interleaved field; determining a first difference value by calculating the difference between a block of pixels of the current interleaved field and a corresponding block of pixels of the previous interleaved field, the second difference value by calculating the difference between the block of pixels of the current interleaved field and a corresponding block of pixels of the next interleaved field, and the third difference value by calculating the difference between the block of pixels of the current interleaved field and a corresponding block of pixels of the second next interleaved field; generating a first progressive frame by performing a weave method, the second progressive frame by performing a motion compensation method, and the third progressive frame by performing a bob method; and selecting one of the first, the second, and the third progressive frames to be a current progressive frame based on the first, the second, and the third difference values.