公开(公告)号：US20170192919A1

公开(公告)日：2017-07-06

申请号：US15397999

申请日：2017-01-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadashi ONO ,  Tatsuya ADACHI

IPC: G06F13/364 ,  G06F13/42

CPC classification number: G06F13/364 ,  G06F13/4282 ,  Y02D10/14 ,  Y02D10/151

Abstract: In a removable system formed from a host device and a slave device detachable from the host device, when the slave device sequentially detects a signal of a first voltage level and a signal of a second voltage level from the connected host device, the signal of the first voltage level is transmitted by a second signal line. Subsequently, when the host device detects that the second signal line is at the first voltage level, the host device interrupts drive of a first signal line, and executes initialization.