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Patent Application Titled "Systems, Methods, and Apparatus for Small Device Wireless Charging Modes" Published Online

February 6, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- According to news reporting originating from Washington, D.C., by VerticalNews journalists, a patent application by the inventor Von Novak, William H. (San Diego, CA), filed on November 13, 2012, was made available online on January 23, 2014.

The assignee for this patent application is QUALCOMM Incorporated.

Reporters obtained the following quote from the background information supplied by the inventors: "An increasing number and variety of electronic devices are powered via rechargeable batteries. Such devices include mobile phones, portable music players, laptop computers, tablet computers, computer peripheral devices, communication devices (e.g., Bluetooth devices), digital cameras, hearing aids, and the like. While battery technology has improved, battery-powered electronic devices increasingly require and consume greater amounts of power, thereby often requiring recharging. Rechargeable devices are often charged via wired connections through cables or other similar connectors that are physically connected to a power supply. Cables and similar connectors may sometimes be inconvenient or cumbersome and have other drawbacks. Wireless charging systems that are capable of transferring power in free space to be used to charge rechargeable electronic devices or provide power to electronic devices may overcome some of the deficiencies of wired charging solutions. As such, wireless power transfer systems and methods that efficiently and safely transfer power to electronic devices are desirable."

In addition to obtaining background information on this patent application, VerticalNews editors also obtained the inventor's summary information for this patent application: "Various implementations of systems, methods and devices within the scope of the appended claims each have several aspects, no single one of which is solely responsible for the desirable attributes described herein. Without limiting the scope of the appended claims, some prominent features are described herein.

"Details of one or more implementations of the subject matter described in this specification are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.

"One aspect of the subject matter described in the disclosure provides a wireless charging device. The wireless charging device includes a transmitter configured to wirelessly transmit power via a wireless field at a power level sufficient to charge one or more electronic devices according to one or more charging modes. The one or more charging modes include at least a first charging mode in which the transmitter is configured to vary the power level of the transmitter based on feedback received from an electronic device of the one or more electronic devices and a second charging mode in which the power level is constant. The wireless charging device includes a sensor configured to obtain input for switching between the first charging mode and the second charging mode. The wireless charging device further includes a controller configured to switch between the first charging mode and the second charging mode in response to the input from the sensor.

"Another aspect of the subject matter described in the disclosure provides an implementation of a method for wireless charging. The method includes wirelessly transmitting power via a wireless field at a power level sufficient to charge one or more electronic devices according to one or more charging modes. The one or more charging modes includes a first charging mode in which the transmitter is configured to vary the power level of the transmitter based on feedback received from an electronic device of the one or more electronic devices and a second charging mode in which the power level is constant. The method further includes receiving input, via a sensor, for switching between the first charging mode and the second charging mode. The method further includes selectively switching between the first charging mode and the second charging mode in response to the input received via the sensor.

"Yet another aspect of the subject matter described in the disclosure provides a wireless charging device. The wireless charging device includes means for wirelessly transmitting power via a wireless field at a power level sufficient to charge one or more electronic devices according to one or more charging modes. The one or more charging modes including at least a first charging mode in which the transmitting means is configured to vary the power level of the transmitting means based on feedback received from an electronic device of the one or more electronic devices and a second charging mode in which the power level is constant. The wireless charging device includes means for receiving input for switching between the first charging mode and the second charging mode. The wireless charging device further includes means for switching between the first charging mode and the second charging mode in response to the input.

BRIEF DESCRIPTION OF THE DRAWINGS

"FIG. 1 is a functional block diagram of an exemplary wireless power transfer system, in accordance with exemplary embodiments of the invention.

"FIG. 2 is a functional block diagram of exemplary components that may be used in the wireless power transfer system of FIG. 1, in accordance with various exemplary embodiments of the invention.

"FIG. 3 is a schematic diagram of a portion of transmit circuitry or receive circuitry of FIG. 2 including a transmit or receive antenna, in accordance with exemplary embodiments of the invention.

"FIG. 4 is a functional block diagram of a transmitter that may be used in the wireless power transfer system of FIG. 1, in accordance with exemplary embodiments of the invention.

"FIG. 5 is a functional block diagram of a receiver that may be used in the wireless power transfer system of FIG. 1, in accordance with exemplary embodiments of the invention.

"FIG. 6 is diagram of an exemplary wireless charging device, in accordance with exemplary embodiments of the invention.

"FIGS. 7A and 7B are schematic diagrams of exemplary receive circuits that may be found in small electronic devices, in accordance with exemplary embodiments of the invention.

"FIG. 8 is a diagram of an exemplary user interface that may be displayed on the wireless charging device of FIG. 6, in accordance with exemplary embodiments of the invention.

"FIG. 9 is a flow chart of an exemplary method for charging electronic devices according to different charging modes, in accordance with exemplary embodiments of the invention.

"FIG. 10 is a flow chart of another exemplary method for charging electronic devices according to different charging modes, in accordance with exemplary embodiments of the invention.

"FIG. 11 is a flow chart of another exemplary method for charging electronic devices according to different charging modes, in accordance with exemplary embodiments of the invention.

"FIG. 12 is a functional block diagram of a wireless charging device, in accordance with an exemplary embodiment of the invention.

"The various features illustrated in the drawings may not be drawn to scale. Accordingly, the dimensions of the various features may be arbitrarily expanded or reduced for clarity. In addition, some of the drawings may not depict all of the components of a given system, method or device. Finally, like reference numerals may be used to denote like features throughout the specification and figures."

For more information, see this patent application: Von Novak, William H. Systems, Methods, and Apparatus for Small Device Wireless Charging Modes. Filed November 13, 2012 and posted January 23, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=4669&p=94&f=G&l=50&d=PG01&S1=20140116.PD.&OS=PD/20140116&RS=PD/20140116

Keywords for this news article include: QUALCOMM Incorporated.

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Source: Politics & Government Week


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