Invention Grant
- Patent Title: Circuit apparatus and system
- Patent Title (中): 电路设备及系统
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Application No.: US13170141Application Date: 2011-06-27
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Publication No.: US08477544B2Publication Date: 2013-07-02
- Inventor: Haruhiko Sogabe
- Applicant: Haruhiko Sogabe
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: JP2010-147673 20100629
- Main IPC: G11C7/10
- IPC: G11C7/10 ; H03K19/0175 ; G06F13/00 ; G06F13/28 ; B41J29/38

Abstract:
A circuit apparatus includes an output circuit that outputs a signal to a host apparatus via a bus, and an output control circuit that controls the output circuit. The output circuit has a first conductive transistor provided between an output node and a first power source node, and a second conductive transistor provided between the output node and a second power source node. In a first output mode, the output control circuit controls one of the first conductive transistor and the second conductive transistor to go to off and controls the other transistor to go to on/off, whereas in a second output mode, the output control circuit controls the first conductive transistor to go to on and the second conductive transistor to go to off or vice versa.
Public/Granted literature
- US20110316605A1 CIRCUIT APPARATUS AND SYSTEM Public/Granted day:2011-12-29
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