Solomon Systech Limited

Wai Kin Cheng

Wing Chi Stephen Chan

Wai Hon Ng

Siu Hong Lui

Wai Pak Choi

Kwok Wah Chu

Yao Lu

A poly-phase frame modulation system includes a phase matrix look-up table being configured for generating a reference phase matrix; a first phase modulator being configured for generating a first modulated output by taking in the data from a red channel and the sum of the reference phase matrix and a frame offset; a second phase modulator being configured for generating a second modulated output by taking in the data from a green channel and the sum of the reference phase matrix, the frame offset and a first channel offset; and a third phase modulator being configured for generating a third modulated output by taking in the data from a blue channel and the sum of the reference phase matrix, the frame offset and a second channel offset.

Poly-phase frame modulation system

A controller for detection of touches by a single finger or multiple fingers on a touch panel, the touch panel including a first group of electrodes arranged in a first direction and a second group of electrodes arranged in a second direction, thereby forming a plurality of crossover points. The controller includes: a plurality of signal drivers coupled to the first group of electrodes and configured to excite the first group of electrodes sequentially using a spread spectrum signal; a plurality of signal sensors coupled to the second group of electrodes and configured to detect peaks and troughs of capacitive coupled signals at the second group of electrodes, the detecting being performed simultaneously for the crossover points along a current one of the first group of electrodes that is being excited; and a signal processing device configured to detect the touches on the touch panel and to determine touch positions and touch movements, based on the detected peaks and troughs of the capacitive coupled signals.

Method and apparatus for operating a touch panel

Growing community of inventors

Hong Kong, China

Wai Kin Cheng