SYSTEM

• US 20160126757A1
• Filed: 08/06/2015
• Published: 05/05/2016
• Est. Priority Date: 10/30/2014
• Status: Active Grant

• Current Assignee: Toshiba Client Solutions CO., Ltd. (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: HIROSAWA, Hideki, HORIE, Yutaka, KANOU, Akio
• Granted Patent: US 9,939,849 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1632 External expansion units, e.g. docking stations
• CPC Class Codes: G06F 1/1635 Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter
• CPC Class Codes: G06F 1/1669 Detachable keyboards
• CPC Class Codes: G06F 1/263 Arrangements for using multiple switchable power supplies, e.g. battery and AC G06F1/30 takes precedence
• CPC Class Codes: G06F 1/266 Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
• CPC Class Codes: G06F 3/0202 Constructional details or processes of manufacture of the input device
• CPC Class Codes: G06F 3/0231 Cordless keyboards
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

According to one embodiment, a system includes an electronic device and an extension device. The electronic device includes a first connector to which a first AC adapter is connected, a first control IC including a first power supply controller, and a first charger IC to charge a first battery with power from the first AC adapter in response to an instruction from the first power supply controller. The extension device includes a second connector to which a second AC adapter is connected, a second control IC including a second power supply controller, and a second charger IC to charge a second battery with power from the second AC adapter in response to an instruction from the second power supply controller.

Claims

1. A system comprising an electronic device and an extension device to which the electronic device is detachable from and attachable,

wherein the electronic device comprises:

a first battery;

a first connector to which a first AC adapter is connected;

a first control IC comprising a first power supply controller; and

a first charger IC to charge the first battery with power supplied from the first AC adapter in response to an instruction from the first power supply controller, and

the extension device comprises;

a second battery;

a second connector to which a second AC adapter is connected;

a second control IC comprising a second power supply controller; and

a second charger IC to charge the second battery with power supplied from the second AC adapter in response to an instruction from the second power supply controller.

2. The system of claim 1, wherein the second power supply controller supplies the electronic device with power supplied from the second AC adapter and supplies the electronic device with power supplied from the second battery in response to an instruction from the first power controller, if the extension device is mounted on the electronic device.

3. The system of claim 1,

wherein the first power supply controller further comprises a first real time clock, and

the second power supply controller further comprises a second real time clock.

4. The system of claim 3,

wherein the first power supply controller is connected to a third battery for driving the first real time clock, and

the second power supply controller is connected to a fourth battery for driving the second real time clock.

5. The system of claim 1,

wherein the first control IC further comprises a first keyboard controller, and

the second control IC further comprises a second keyboard controller.

6. The system of claim 5, wherein the extension device further comprises a keyboard.