公开(公告)号：US08890840B2

公开(公告)日：2014-11-18

申请号：US13719170

申请日：2012-12-18

Applicant: Mediatek Inc.

Inventor： Chung-Jen Kuo ,  Pi-Hai Liu

IPC: G06F3/045 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A method for detecting capacitance values of a plurality of capacitive sensing nodes located at intersections of a plurality of drive lines and a sense line on a touch panel is provided. The method includes at least the following steps: obtaining a plurality of touch sense signals corresponding to the sense line during a plurality of time slots, respectively; demodulating the touch sense signals with a first oscillation signal to generate a plurality of first demodulated signals; demodulating the touch sense signals with a second oscillation signal to generate a plurality of second demodulated signals, wherein the second oscillation signal is different from the first oscillation signal; and determining the capacitance values according to at least the first demodulated signals and the second demodulated signals.

Abstract translation: 提供了一种用于检测位于触摸面板上的多个驱动线和感测线的交点处的多个电容感测节点的电容值的方法。 该方法至少包括以下步骤：在多个时隙期间分别获得对应于感测线的多个触摸感测信号; 用第一振荡信号解调触摸感测信号以产生多个第一解调信号; 用第二振荡信号解调触摸感测信号以产生多个第二解调信号，其中第二振荡信号不同于第一振荡信号; 以及至少根据所述第一解调信号和所述第二解调信号确定所述电容值。

公开(公告)号：US20170153852A1

公开(公告)日：2017-06-01

申请号：US15331912

申请日：2016-10-23

Applicant: MEDIATEK INC.

Inventor： Chang-Po Ma ,  Veng-Chong Lau ,  Ting-Chun Chang ,  Yao-Chun Fang ,  Pi-Hai Liu ,  Li-Lien Lin

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0604 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/0656 ,  G06F3/0679 ,  H04L49/90

Abstract: A packet buffer stores packet data of packets received by a master device. The packet buffer includes a non-guaranteed buffer, a guaranteed buffer, and a reserved buffer. The non-guaranteed buffer is visible to the master device, and is not guaranteed to provide one free cell space for one cell in a first-type packet before the non-guaranteed buffer is full. The guaranteed buffer is visible to the master device, and is guaranteed to provide one free cell space for one cell in a second-type packet before the guaranteed buffer is full. The reserved buffer is invisible to the master device, and is arranged to provide headroom for the guaranteed buffer.

公开(公告)号：US20130285976A1

公开(公告)日：2013-10-31

申请号：US13719170

申请日：2012-12-18

Applicant: MEDIATEK INC.

Inventor： Chung-Jen Kuo ,  Pi-Hai Liu

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A method for detecting capacitance values of a plurality of capacitive sensing nodes located at intersections of a plurality of drive lines and a sense line on a touch panel is provided. The method includes at least the following steps: obtaining a plurality of touch sense signals corresponding to the sense line during a plurality of time slots, respectively; demodulating the touch sense signals with a first oscillation signal to generate a plurality of first demodulated signals; demodulating the touch sense signals with a second oscillation signal to generate a plurality of second demodulated signals, wherein the second oscillation signal is different from the first oscillation signal; and determining the capacitance values according to at least the first demodulated signals and the second demodulated signals.

Abstract translation: 提供了一种用于检测位于触摸面板上的多个驱动线和感测线的交点处的多个电容感测节点的电容值的方法。 该方法至少包括以下步骤：在多个时隙期间分别获得对应于感测线的多个触摸感测信号; 用第一振荡信号解调触摸感测信号以产生多个第一解调信号; 用第二振荡信号解调触摸感测信号以产生多个第二解调信号，其中第二振荡信号不同于第一振荡信号; 以及至少根据所述第一解调信号和所述第二解调信号确定所述电容值。