Invention Grant
US08639959B2 Semiconductor apparatus having a controller arranged to turn on a first switch and turn off a second switch during a period in which a judgement unit judges a device type of a device
有权
具有控制器的半导体装置，其布置成在判断单元判断设备的设备类型的时段期间接通第一开关并关闭第二开关
- Patent Title: Semiconductor apparatus having a controller arranged to turn on a first switch and turn off a second switch during a period in which a judgement unit judges a device type of a device
- Patent Title (中): 具有控制器的半导体装置，其布置成在判断单元判断设备的设备类型的时段期间接通第一开关并关闭第二开关
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Application No.: US12897454Application Date: 2010-10-04
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Publication No.: US08639959B2Publication Date: 2014-01-28
- Inventor: Koichi Miyanaga
- Applicant: Koichi Miyanaga
- Applicant Address: JP
- Assignee: Rohm Co., Ltd.
- Current Assignee: Rohm Co., Ltd.
- Current Assignee Address: JP
- Agency: Cantor Colburn LLP
- Priority: JP2009-231006 20091002; JP2009-231007 20091002; JP2010-196402 20100902
- Main IPC: G06F1/32
- IPC: G06F1/32
Abstract:
A first switch is arranged between a judgment unit and a signal line. The first switch is turned on during a period in which the judgment unit judges a device, after which the first switch is turned off. A second switch is turned off during a period in which the judgment unit judges the device, after which the second switch is turned on. The signal line connects a communication interface port, which allows various different kinds of devices to be connected, and a communication terminal of a processor configured to perform data communication with the device. The judgment unit monitors the electrical state of the signal line, and judges the device connected to the port.
Public/Granted literature
- US20120023344A1 SEMICONDUCTOR APPARATUS Public/Granted day:2012-01-26
Information query
