公开(公告)号：US20120001739A1

公开(公告)日：2012-01-05

申请号：US13067713

申请日：2011-06-22

Applicant: Horng-Bin Wang

Inventor： Horng-Bin Wang

IPC: G08C19/16

CPC classification number: G08C19/28

Abstract: In a custom code setting system of a remote control chip, M keyboard input/output pins are connected to an external keyboard to receive the input of the external keyboard. A first pin is connected to one terminal of an external resistor, while the other terminal of the external resistor is connected to ground, wherein there are N resistance values selectable for the external resistor. A resistance detecting unit is connected to the first resistor to detect the resistance of the first resistor. A second pin is connected to one of the M keyboard input/output pins for setting a custom code. When power on reset occurs, a control logic receives the resistance from the resistance detecting unit, and one of the N×M custom codes is determined according to connection between the second pin and one of the M keyboard input/output pins.

Abstract translation: 在远程控制芯片的自定义代码设置系统中，M个键盘输入/输出引脚连接到外部键盘以接收外部键盘的输入。 第一个引脚连接到外部电阻的一个端子，而外部电阻的另一个端子连接到地，其中有可以为外部电阻选择的N个电阻值。 电阻检测单元连接到第一电阻器以检测第一电阻器的电阻。 第二个引脚连接到M个键盘输入/输出引脚之一，用于设置自定义代码。 当上电复位发生时，控制逻辑从电阻检测单元接收电阻，根据第二引脚和M个键盘输入/输出引脚之一的连接来确定N×M个定制代码之一。

公开(公告)号：US08368565B2

公开(公告)日：2013-02-05

申请号：US12729793

申请日：2010-03-23

Applicant: Horng-Bin Wang ,  Hsin Chou Lee

Inventor： Horng-Bin Wang ,  Hsin Chou Lee

IPC: H03M11/00

CPC classification number: H03M11/20

Abstract: The invention relates to a power saving method in a sleep mode and a keyboard controller using the same. The method is adapted for a triangular-type scan keyboard controller including a plurality of input/output (I/O) pins. The method includes the steps of: providing a first clock source and a second clock source, wherein the frequency of the second clock source is much lower than the frequency of the first clock source. In a normal mode, a scan pulse is sequentially outputted from the I/O pins according to the frequency of the first clock source. In a sleep mode, the scan pulse is sequentially outputted from the I/O pins according to the frequency of the second clock source. When a specific one of the I/O pins outputs the scan pulse, the other I/O pins are used for detecting.

Abstract translation: 本发明涉及睡眠模式中的省电方法和使用该省电方法的键盘控制器。 该方法适用于包括多个输入/输出（I / O）引脚的三角形扫描键盘控制器。 该方法包括以下步骤：提供第一时钟源和第二时钟源，其中第二时钟源的频率远低于第一时钟源的频率。 在正常模式下，根据第一时钟源的频率从I / O引脚依次输出扫描脉冲。 在睡眠模式下，根据第二时钟源的频率，从I / O引脚依次输出扫描脉冲。 当特定的I / O引脚输出扫描脉冲时，其他I / O引脚用于检测。