Electronic unit having a USB host connected to a USB device

Electronic unit having a USB host connected to a USB device

An electronic unit includes a USB host and a USB device. After the USB host and the USB device are connected to each other by a USB cable, a signal requesting for a connection permission is transmitted from the USB device to the USB host, and the USB host determines whether to permit a connection ba...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Yamaguchi, Ui
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
CHAMBERS PROVIDED WITH MANIPULATION DEVICES
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
HAND TOOLS
MANIPULATORS
PERFORMING OPERATIONS
PHYSICS
PORTABLE POWER-DRIVEN TOOLS
TRANSPORTING
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Beschreibung
Zusammenfassung:An electronic unit includes a USB host and a USB device. After the USB host and the USB device are connected to each other by a USB cable, a signal requesting for a connection permission is transmitted from the USB device to the USB host, and the USB host determines whether to permit a connection based on the signal. The electronic unit further includes a power supply configured to supply power to the USB device, and an additional GND pattern different from a GND pattern of the USB cable is electrically connected to a GND of the USB port of at least one of the USB host and the USB device. An area of the additional GND pattern is 2000 mm2 or more.