公开(公告)号：US20180188292A1

公开(公告)日：2018-07-05

申请号：US15394770

申请日：2016-12-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Min-Hung Hu ,  Hsi-Ming Chen ,  Chao-Wei Su ,  Ying-Chieh Yen

IPC: G01R15/14 ,  G01R19/00

CPC classification number: G01R15/146 ,  G01R19/0023 ,  G01R19/0092

Abstract: A current measurement circuit for measuring a current consumption of a circuit system includes a plurality of current measurement units and a current-to-voltage (I-V) converter. Each of the current measurement units includes an impedance unit and a voltage-to-current (V-I) converter. The impedance unit includes a first terminal and a second terminal. The V-I converter, coupled to the first terminal and the second terminal of the impedance unit, includes an output terminal and an operational transconductance amplifier (OTA). The plurality of output terminals of the plurality of V-I converters of the plurality of current measurement units are coupled to a first node. The I-V converter is coupled to the first node.

公开(公告)号：US10175267B2

公开(公告)日：2019-01-08

申请号：US15394770

申请日：2016-12-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Min-Hung Hu ,  Hsi-Ming Chen ,  Chao-Wei Su ,  Ying-Chieh Yen

IPC: G01R15/14 ,  G01R19/00

Abstract: A current measurement circuit for measuring a current consumption of a circuit system includes a plurality of current measurement units and a current-to-voltage (I-V) converter. Each of the current measurement units includes an impedance unit and a voltage-to-current (V-I) converter. The impedance unit includes a first terminal and a second terminal. The V-I converter, coupled to the first terminal and the second terminal of the impedance unit, includes an output terminal and an operational transconductance amplifier (OTA). The plurality of output terminals of the plurality of V-I converters of the plurality of current measurement units are coupled to a first node. The I-V converter is coupled to the first node.

公开(公告)号：US20130257917A1

公开(公告)日：2013-10-03

申请号：US13688191

申请日：2012-11-28

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yu-Hsun Peng ,  Jiun-Ting Chen ,  Yu-Shan Wai ,  Hsi-Ming Chen

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G3/3688 ,  G09G2310/0248 ,  G09G2360/16

Abstract: A display driving optimization method and a display driver are provided. The method includes following steps. Previous data and current data of at least a data line of a display panel are estimated to obtain an estimate result. A pre-charge operation or a charge-sharing operation of the data line is enabled or disabled according to the estimation result.

Abstract translation: 提供显示驱动优化方法和显示驱动器。 该方法包括以下步骤。 估计显示面板的至少数据线的前一数据和当前数据以获得估计结果。 数据线的预充电操作或电荷共享操作根据估计结果启用或禁用。