Invention Grant
- Patent Title: Interface device for host device, interface device for slave device, host device, slave device, communication system and interface voltage switching method
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Application No.: US13272534Application Date: 2011-10-13
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Publication No.: US08212429B2Publication Date: 2012-07-03
- Inventor: Masayuki Toyama , Takaharu Yoshida , Keisuke Sakai
- Applicant: Masayuki Toyama , Takaharu Yoshida , Keisuke Sakai
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2008-049360 20080229
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F1/26
Abstract:
A communication system in which an operating voltage can be selected from a plurality of interface voltages enables an interface voltage to be switched in a stable manner during operation of the system. When the interface voltage is to be switched, a host device (1) and a slave device (2) perform the switching while maintaining the signal level of buses in a stable manner. This structure enables the communication system to switch an interface voltage using a small number of signal lines.
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