Invention Grant
US08554276B2 Apparatus and method for controlling subscriber identity module card
有权
用于控制用户识别模块卡的装置和方法
- Patent Title: Apparatus and method for controlling subscriber identity module card
- Patent Title (中): 用于控制用户识别模块卡的装置和方法
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Application No.: US12472075Application Date: 2009-05-26
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Publication No.: US08554276B2Publication Date: 2013-10-08
- Inventor: Chih-Yung Lin , Cheng-Yuan Lo , Yi-Wei Wang , Jui-Hsiang Chang
- Applicant: Chih-Yung Lin , Cheng-Yuan Lo , Yi-Wei Wang , Jui-Hsiang Chang
- Applicant Address: TW Hsinchu Hsien
- Assignee: MStar Semiconductor, Inc.
- Current Assignee: MStar Semiconductor, Inc.
- Current Assignee Address: TW Hsinchu Hsien
- Agency: WPAT, PC
- Agent Justin King
- Priority: TW97141443A 20081028
- Main IPC: H04M1/00
- IPC: H04M1/00
Abstract:
A Subscriber Identity Module (SIM) card control apparatus applied to a mobile communication device is provided. The mobile communication device has a first SIM card and a second SIM card. The SIM card control apparatus includes a judgment unit, a SIM card controller and a switch device. The judgment unit is used to generate a selection signal according to a to-be-accessed SIM card among the first and the second SIM cards. The SIM card controller transmits signals via a group of signal lines. The switch device is used to selectively connect the group of signal lines to the first SIM card or the second SIM card according to the selection signal.
Public/Granted literature
- US20100105433A1 Apparatus and Method for Controlling Subscriber Identity Module Card Public/Granted day:2010-04-29
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