US 2026/0064155 A1 · EXTENSION DEVICE FOR ELECTRONIC DEVICE

Abstract

The disclosure provides an extension device applicable to an electronic device. The extension device includes multiple connection ports, an USB hub, a multiplexer and a power control circuit. The connection ports include a first connection port, a second connection port and at least one third connection port. The USB hub is coupled to the second connection port and the at least one third connection port. The multiplexer is coupled to the first connection port, the second connection port and the USB hub. The power control circuit is coupled to the connection ports, the multiplexer and the USB hub, and is configured to selectively turn on the USB hub according to a state of the second connection port and a state of the at least one third connection port when the first connection port is in an operating state.

Claims23

Dependent claims

An extension device, applicable to an electronic device, wherein the electronic device is configured to be coupled to an input device and/or at least one external device through the extension device, and the extension device comprises:

a plurality of connection ports, comprising a first connection port, a second connection port and at least one third connection port;
an USB hub, coupled to the second connection port and the at least one third connection port;
a multiplexer, coupled to the first connection port, the second connection port and the USB hub;
and
a power control circuit, coupled to the plurality of connection ports, the multiplexer and the USB hub, and configured to selectively turn on the USB hub according to a state of the second connection port and a state of the at least one third connection port when the first connection port is in an operating state.

2 more elements

An extension device, applicable to an electronic device, wherein the electronic device is configured to be coupled to at least one external device through the extension device, and the extension device comprises:

a plurality of connection ports, comprising a first connection port, a second connection port and at least one third connection port;
an USB hub, coupled to the second connection port and the at least one third connection port;
a multiplexer, coupled to the first connection port, the second connection port and the USB hub;
an input device, electrically connected to the second connection port;
and
a power control circuit, coupled to the plurality of connection ports, the multiplexer and the USB hub, and configured to selectively turn on the USB hub according to a state of the at least one third connection port when the first connection port is in an operating state.

3 more elements

Dependencies are inferred from the claim text.

Extension device for electronic device

Life of this patent

Extension device for electronic device

Life of this patent

Abstract

Claims23