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US 11,030,139 B2Granted
Circuit device, circuit device determination method, and electronic apparatus
AssigneeSeiko Epson Corporation
InventorsKota Muto, Toshimichi Yamada
Life of this patent
Estimating the term…
Abstract
A circuit device includes a control circuit configured to instruct, when a detection circuit detects that an amplitude level of a packet exceeds a disconnecting detection level, a packet output circuit to lower an amplitude level of a part or all of packets, and after the instruction, to determine that, when the detection circuit detects that an amplitude level of a packet again exceeds the disconnecting detection level, a USB device connected to a bus is disconnected.
Claims6
A circuit device comprising:
- a packet output circuit configured to transmit a packet to a bus according to a USB standard in a manner capable of changing an amplitude level of the packet;
- a detection circuit configured to detect whether an amplitude level of a packet transmitted to the bus exceeds a discoupling detection level;
- and
- a control circuit configured to instruct, when the detection circuit detects that the amplitude level of the packet exceeds the discoupling detection level, the packet output circuit to lower an amplitude level of a part or all of packets, and after the instruction, to determine that, when the detection circuit detects that an amplitude level of a packet again exceeds the disconnecting detection level, a USB device connected to the bus is disconnected.
1 more element
Dependencies are inferred from the claim text.