Communication device with a USB port for charging

• US 7,986,127 B2
• Filed: 10/15/2010
• Issued: 07/26/2011
• Est. Priority Date: 03/01/2001
• Status: Expired due to Fees

• Current Assignee: Fundamental Innovation Systems International LLC (Fundamental Innovation Systems International Holdings LLC)
• Original Assignee: Research In Motion Limited (Blackberry Limited)
• Inventors: Fischer, Daniel M., Radut, Dan G., Habicher, Michael F., Luong, Quang A., Malton, Jonathan T.
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US12/905,934
• Publication Number:
  US 20110025262A1
• Time in Patent Office: 284 Days
• Field of Search: 320/107, 320/111, 320/114, 320/140
• US Class Current: 320/111
• CPC Class Codes: H01R 13/6675 with built-in power supply
• CPC Class Codes: H01R 2201/16 for telephony
• CPC Class Codes: H01R 31/065 with built-in electric apparatus
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 2310/22 The load being a portable electronic device
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters

Abstract

An adapter for providing a source of power to a mobile device through an industry standard port is provided. In accordance with one aspect of the invention, the adapter comprises a plug unit, a power converter, a primary connector, and an identification subsystem. The plug unit is operative to couple the adapter to a power socket and operative to receive energy from the power socket. The power converter is electrically coupled to the plug unit and is operable to regulate the received energy from the power socket and to output a power requirement to the mobile device. The primary connector is electrically coupled to the power converter and is operative to couple to the mobile device and to deliver the outputted power requirement to the mobile device. The identification subsystem is electrically coupled to the primary connector and is operative to provide an identification signal.

Claims

1. A mobile communication device, comprising:

a charging subsystem; and

a Universal Serial Bus (USB) port,

wherein said USB port is configured to detect an identification signal and in response draw current without waiting for enumeration.

2. The mobile communication device of claim 1, wherein said identification signal is an invalid USB data condition.

3. The method of claim 2, wherein said invalid USB data condition comprises logic high signals on the D+ and D−

lines of the USB port.

4. The mobile communication device of claim 1, wherein said current exceeds limits defined in a USB Specification.

5. The mobile communication device of claim 1, wherein said current exceeds 500 mA.

6. A mobile communication device, comprising:

a charging subsystem; and

a Universal Serial Bus (USB) port,

wherein said USB port is configured to detect an identification signal and in response draw current without waiting for charge negotiation.

7. The mobile communication device of claim 6, wherein said identification signal is an invalid USB data condition.

8. The mobile communication device of claim 7, wherein said invalid USB data condition comprises logic high signals on the D+ and D−

lines of the USB port.

9. The mobile communication device of claim 6, wherein said current exceeds limits defined in a USB Specification.

10. The mobile communication device of claim 6 wherein said current exceeds 500 mA.

11. A mobile device, comprising:

a Universal Serial Bus (USB) port,

wherein the device is configured to draw current from the USB port without regard to any associated conditions specified in a USB specification.

12. A mobile communication device, comprising:

a Universal Serial Bus (USB) port,

wherein the device is configured to draw power from the USB port without regard to USB specification imposed limits.