Invention Grant
US08971953B2 Portable communication device and method for dialing phone numbers on keypad of the portable communication device
有权
用于在便携式通信设备的键盘上拨打电话号码的便携式通信设备和方法
- Patent Title: Portable communication device and method for dialing phone numbers on keypad of the portable communication device
- Patent Title (中): 用于在便携式通信设备的键盘上拨打电话号码的便携式通信设备和方法
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Application No.: US13653431Application Date: 2012-10-17
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Publication No.: US08971953B2Publication Date: 2015-03-03
- Inventor: Kai-Bo Qu
- Applicant: Kai-Bo Qu
- Applicant Address: CN Shenzhen TW New Taipei
- Assignee: Shenzhen Futaihong Precision Industry Co., Ltd.,Chi Mei Communication Systems, Inc.
- Current Assignee: Shenzhen Futaihong Precision Industry Co., Ltd.,Chi Mei Communication Systems, Inc.
- Current Assignee Address: CN Shenzhen TW New Taipei
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Priority: CN201210049147 20120229
- Main IPC: H04M1/00
- IPC: H04M1/00
Abstract:
In a method for dialing phone numbers using a portable communication device, the device includes a keypad including numeric keys and an LED driver. Each of the numeric keys is equipped with a first color LED light and a second color LED light. The LED driver drives the first LED light under each of the numeric keys to emit a first color light. The LED driver turns off the first LED light under the numeric key and turns on the second LED light under the numeric key to emit a second color light according to an LED control signal. The LED driver further turns off the second LED light and turns on the first LED light to emit the first color light when the digit input from the keypad is in a digital group.
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