KR101377301B1 - Wireless power and data transfer for electronic devices - Google Patents

Abstract

Example embodiments relate to wireless power. The wireless charging device may include a charging region configured for the placement of one or more rechargeable devices. The charging device may further include at least one transmit antenna configured to transmit wireless power within the charging area. In addition, the charging device is configured to exchange data between at least one of the one or more rechargeable devices.

Description

WIRELESS POWER AND DATA TRANSFER FOR ELECTRONIC DEVICES

35 Priority claim in accordance with U.S.C. §119

This application is subject to 35 U.S.C. § 119 (e):

United States Provisional Patent Application 61 / 151,828, entitled “CHARGE PLUS AUTOMATIC CONNECTIONS,” filed Feb. 11, 2009, the disclosure of which is hereby fully incorporated by reference;

United States Provisional Patent Application 61 / 164,402, entitled "CHARGING MULTIPLE DEVICES AND ENABLING INFORMATION SHARING BETWEEN THE DEVICES," filed March 28, 2009, the disclosure of which is fully incorporated herein by reference;

A U.S. patent application entitled "COMBINING WIRELESS CHARGING CAPABILITY AND THE ABILITY TO RECEIVE A WIRELESS CHARGE IN A SINGLE PORTABLE COMPUTING DEVICE", filed April 3, 2009, the disclosure of which is hereby fully incorporated by reference. 61 / 166,686;

United States Provisional Patent Application 61 / 158,396, entitled “WIRELESS CHARGING,” filed March 8, 2009, the disclosure of which is hereby fully incorporated by reference;

U.S. Provisional Patent Named "USING A DEVICE WITH A WLAN OR WAN MODEM FOR CONNECTION TO THE INTERNET BY A WIRELESS CHARGING STATION", filed July 23, 2009, the disclosure of which is hereby fully incorporated by reference. Application 61 / 227,934; And

Priority is claimed to U.S. Provisional Patent Application 61 / 114,436, entitled "VALUE ADDING FUNCTIONS TO WIRELESS CHARGING," filed November 13, 2008, the disclosure of which is hereby fully incorporated by reference.

Field

FIELD OF THE INVENTION The present invention relates generally to wireless charging, and more particularly to data transmission between electronic devices while charging at least one of programmable devices, bidirectional charging, and electronic devices.

Typically, each battery powered device requires its own charger and a power source, usually an AC power outlet. This becomes difficult to handle in cases where many devices require charging.

Approaches are being developed that use over-the-air power transmission between the device to be charged and the transmitter. These are generally divided into two categories. One is that of plane wave radiation (also called far-field radiation) between the transmit and receive antennas on the device to be charged that collects radiated power and rectifies the radiated power to charge the battery. Based on coupling. The antennas are generally of resonance length to improve coupling efficiency. This approach is disadvantageous due to the fact that the power coupling rapidly decreases with distance between the antennas. This makes charging harder than a reasonable distance (eg> 1 to 2 m). In addition, because the system radiates plane waves, unintentional radiation can interfere with other systems if not properly controlled through filtering.

Other approaches are based, for example, on inductive coupling between a transmit antenna embedded in a "charge" mat or surface and a receive antenna appended with a rectifying circuit embedded in the host device to be charged. This approach has the disadvantage that the spacing between the transmit and receive antennas must be very close (eg mms). This approach has the ability to simultaneously charge multiple devices within the same area, but since this area is typically small, the user must place the devices in a particular area.

There is a need to wirelessly charge devices while exchanging information between them. There is also a need to bidirectionally transmit wireless power between devices, programmable wireless devices, and security features for wireless charging.

1 is a simplified block diagram of a wireless power transfer system.
2 is a simplified schematic diagram of a wireless power transfer system.
3 is a schematic diagram of a loop antenna for use in an exemplary embodiment of the present invention.
4 illustrates a charging system including a wireless charging device and a wireless chargeable device, in accordance with an exemplary embodiment of the present invention.
5 is a diagram illustrating a wireless charging device communicatively coupled to a network, in accordance with an exemplary embodiment of the present invention.
6 is a block diagram illustrating a charging system including a wireless charging device, in accordance with an exemplary embodiment of the present invention.
7 illustrates a wireless charging system including a charging device with an interface, in accordance with an exemplary embodiment of the present invention.
FIG. 8 is another diagram of the wireless charging system illustrated in FIG. 7.
FIG. 9 is another diagram of the wireless charging system illustrated in FIG. 7.
10 is a flowchart illustrating a method, in accordance with an exemplary embodiment of the present invention.
11 is a diagram illustrating a plurality of electronic devices configured to receive and transmit wireless power, in accordance with an exemplary embodiment of the present invention.
12 is a diagram illustrating an electronic device to which an antenna is coupled, according to an exemplary embodiment of the present invention.
13 is a diagram illustrating an electronic device to which a transmit antenna and a receive antenna are coupled, according to an exemplary embodiment of the present invention.
14 is a diagram illustrating a state machine diagram illustrating operating states of an electronic device configured to receive and transmit wireless power, in accordance with an exemplary embodiment of the present invention.
FIG. 15 is a diagram illustrating a surface computing device configured for transmitting wireless power, in accordance with an exemplary embodiment of the present invention. FIG.
16 is a diagram illustrating another surface computing device configured for transmitting wireless power, in accordance with an exemplary embodiment of the present invention.
17 illustrates a system including a surface computing device and a computer, in accordance with an exemplary embodiment of the present invention.
18 is a diagram illustrating a rechargeable device configured to transition to a user-defined charging profile upon detection of a power source, in accordance with an exemplary embodiment of the present invention.
19 illustrates a charging system including a wireless charging device and at least one electronic device, in accordance with an exemplary embodiment of the present invention.
20 is a flowchart illustrating another method, in accordance with an exemplary embodiment of the present invention.
21 illustrates another charging system including a chargeable device, in accordance with an exemplary embodiment of the present invention.

The word "exemplary" is used herein to mean "acting as an example or illustration." Any embodiment described herein as "exemplary " is not necessarily to be construed as preferred or advantageous over other embodiments.

The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of exemplary embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced. As used throughout this description, the term "exemplary" means "to serve as an example, illustration, or illustration," and is not necessarily to be construed as preferred or advantageous over other example embodiments. The detailed description includes specific details for the purpose of providing a thorough understanding of the exemplary embodiments of the invention. It will be apparent to those skilled in the art that exemplary embodiments of the invention may be practiced without these specific details. In some cases, well known structures and devices are shown in block diagram form in order to avoid ambiguity in the novelty of the exemplary embodiments presented herein.

The word "wireless power" is used herein to mean any form of energy associated with an electric field, a magnetic field, an electromagnetic field, etc., transmitted between them from transmitter to receiver without the use of physical electromagnetic conductors.

1 illustrates a wireless transmission or charging system 100, in accordance with various exemplary embodiments of the present invention. Input power 102 is provided to transmitter 104 to create a radiated field 106 for providing energy transfer. Receiver 108 is coupled to radiation field 106 and generates output power 110 for storage or consumption by a device (not shown) coupled to output power 110. Both transmitter 104 and receiver 108 are separated by distance 112. In one exemplary embodiment, the transmitter 104 and the receiver 108 are configured according to a mutual resonance relationship, and when the resonant frequency of the receiver 108 and the resonant frequency of the transmitter 104 are substantially the same, the transmitter 104 The transmission loss between the receiver and the receiver 108 is minimal when the receiver 108 is located in the "near-field" of the radiation field 106.

Transmitter 104 further includes transmit antenna 114 to provide means for energy transmission, and receiver 108 further includes receive antenna 118 to provide means for energy reception. The transmit and receive antennas are sized according to the devices and applications that will be associated with them. As mentioned, efficient energy transfer occurs by coupling most of the near field energy of the transmitting antenna to the receiving antenna rather than propagating most of the energy of the electromagnetic waves into the far field. When in this near field, a coupling mode may develop between the transmit antenna 114 and the receive antenna 118. The area around antennas 114 and 118 where this near field coupling may occur is referred to herein as a coupling mode region.

Figure 2 shows a simplified schematic diagram of a wireless power transmission system. The transmitter 104 includes an oscillator 122, a power amplifier 124, and a filter and matching circuit 126. The oscillator is configured to generate a desired frequency, which may be adjusted in response to the adjustment signal 123. The oscillator signal may be amplified by the power amplifier 124 depending on the amount of amplification responsive to the control signal 125. Filter and matching circuit 126 may be included to filter out harmonics or other unwanted frequencies and match the impedance of transmitter 104 to transmit antenna 114.

The receiver uses a matching circuit 132 and a rectifier and switching circuit to generate a DC power output for charging the battery 136 and for powering a device coupled to the receiver (not shown) as shown in FIG. 2. 134). Matching circuit 132 may be included to match the impedance of receiver 108 to receive antenna 118.

As illustrated in FIG. 3, the antennas used in the exemplary embodiment may be configured as a “loop” antenna 150, which may also be referred to herein as a “magnetic” antenna. The loop antenna may be configured to include an air core or a physical core, such as a ferrite core. An air core loop antenna may be more acceptable for unrelated physical devices disposed in the vicinity of the core. Moreover, the air core loop antenna allows the placement of other components within the core area. In addition, the air core loop may be used to determine the receiving antenna 118 (FIG. 2) in the plane of the transmit antenna 114 (FIG. 2), where the coupling mode region of the transmit antenna 114 (FIG. 2) may be stronger. It may be easier to deploy.

As mentioned, the efficient transfer of energy between transmitter 104 and receiver 108 occurs during a matched or near matched resonance between transmitter 104 and receiver 108. However, even if the resonance between transmitter 104 and receiver 108 does not match, energy may be transmitted at a lower efficiency. The transmission of energy occurs by coupling the energy from the near field of the transmitting antenna to the receiving antenna residing in the neighborhood established by the near field, rather than propagating energy from the transmitting antenna into free space.

The resonant frequency of a loop antenna or magnetic antenna is based on inductance and capacitance. In general, the inductance of the loop antenna is simply the inductance produced by the loop, while the capacitance is generally added to the inductance of the loop antenna to produce a resonant structure at the desired resonant frequency. As a non-limiting example, capacitor 152 and capacitor 154 may be added to the antenna to create a resonant circuit that generates resonant signal 156. Thus, for loop antennas of larger diameter, the amount of capacitance needed to induce resonance decreases as the diameter or inductance of the loop increases. In addition, as the diameter of the loop antenna or the magnetic antenna increases, the efficient energy transmission area of the near field increases. Of course, other resonant circuits are possible. As another non-limiting example, the capacitor may be disposed in parallel between the two terminals of the loop antenna. Those skilled in the art will also recognize that in the case of a transmit antenna, the resonant signal 156 may be an input to the loop antenna 150.

Exemplary embodiments of the invention include coupling power between two antennas in a near field of each other. As mentioned, the near field is the area around the antenna where electromagnetic fields exist but may not propagate or radiate away from the antenna. They are typically limited to volumes close to the physical volume of the antenna. In exemplary embodiments of the present invention, magnetic type antennas, such as single and multi-turn loop antennas, have a magnetic near field amplitude of electrical characteristics of an electrical type antenna (eg, a small dipole). It is used for both transmit (Tx) and receive (Rx) antenna systems because it tends to be higher for magnetic type antennas compared to near field. This allows for potentially higher coupling between the pair. In addition, “electric” antennas (eg, dipole and monopole) or combinations of magnetic and electrical antennas are also contemplated.

The Tx antenna is at a frequency low enough to achieve good coupling (eg,> -4 dB) with a small Rx antenna that is considerably more distant than allowed by the far field and inductive approaches described above. It can be operated with large antenna size. Once the Tx antenna is sized correctly, a high coupling level (e.g., -2 to -4 dB) when the Rx antenna on the host device is placed within the coupling mode region (i.e. near field) of the driven Tx loop antenna This can be achieved.

Exemplary embodiments of the present invention include electronic devices configured for receiving and transmitting wireless power. As such, various example embodiments relate to two-way wireless power transmission. Furthermore, according to various example embodiments, electronic devices may be configured to perform at least one of receiving and transmitting wireless power while simultaneously exchanging data with at least one other electronic device. Other example embodiments include charging devices, wherein the charging devices are configured to synchronize data stored on the charging device with data stored on the associated chargeable device. Also, exemplary embodiments include electronic devices configured to program a charging device and electronic devices configured to transition to a charging profile upon detection of a charging source. Also, exemplary embodiments include a safety device for wireless charging.

4 shows a charging system 400 that includes a charging device 402 to which a transmit antenna 404 is coupled. Charging device 402 may include any known and suitable wireless charging device configured to transmit wireless power with an associated charging area. As described more fully below, charging device 402 may be configured to create and update a charging profile of an associated chargeable device. Charging system 400 also includes a rechargeable device 406 with an associated antenna 408. Rechargeable device 406 may include any known and suitable rechargeable device configured to wirelessly receive power. As non-limiting examples, rechargeable device 406 includes a mobile telephone, a portable media player, a camera, a gaming device, a navigation device, a headset (eg, a Bluetooth headset), a tool, a toy, or any combination thereof. You may. As described more fully below, the rechargeable device 406 may be configured to receive wireless power from the charging device 402.

More specifically, the transmit antenna 404 may be configured to receive power from a power source via a transmitter (eg, the transmitter 104 of FIG. 2), upon receipt of power, within the associated near field. The power may be transmitted wirelessly. In addition, wireless power transmitted by the transmit antenna 404 may be received by an antenna within the associated coupling mode region. For example, the power transmitted by the transmit antenna 404 may be received by the antenna 408 and stored in a battery (eg, battery 136 of FIG. 2) in the rechargeable device 406. More specifically, the power transmitted from the transmit antenna 404 may be received by a receiver and receive antenna 408, such as receiver 108 of FIG. 2, coupled to a battery of the rechargeable device 406. have.

Also, according to the exemplary embodiment, the chargeable device 406 may be configured to exchange data with the charging device 402, and vice versa. More specifically, as an example, the chargeable device 406 may be configured to establish a communication link 405 (see FIG. 5) with the charging device 402, upon establishment of the communication link 405, You may transmit information (eg, an audio file, a data file, or a video file) to the charging device 402. The communication link 405 may be established through any known and suitable manner. For example, the communication link 405 is established through near-field communication (NFC) means, through reflective impedance means, through a local area network (LAN), or through a personal area network (PAN) such as a Bluetooth connection. May be It is noted that the charging device 402 may be configured to establish a communication link 405 with the rechargeable device 406. As described more fully below, the rechargeable device 406 may also be configured to establish a communication link 407 with the network 409.

6 illustrates a block diagram of a charging system 450 including a wireless charging device 402. As illustrated, the charging device 402 may include a charging region 410 and a user interface 412. Charging device 402 may be configured to wirelessly charge at least one rechargeable device (eg, rechargeable device 406) located within charging area 410. Interface 412 may include any known and suitable switch, button, dial, keypad, or the like, or any combination thereof. Interface 412 may be configured to accept input and commands and present output. In addition, the interface 412 may be configured to allow a user to select data to be delivered by the charging device 402 (ie, via audio or visual means).

In addition, the interface 412 may include a display device 414, which is merely an example, where the device user directly communicates with the charging device 402 to communicate a command to the charging device 402. It may include a touch screen device with multi-touch interactive capabilities that allow for interaction. The interface 412 may be configured to display data related to one or more rechargeable devices located within the charging area 410. By way of example only, the interface 412 may be configured to display video, audio, alphanumeric text, graphics, or any combination thereof. In addition, the interface 412 may include one or more speakers 416 configured to audioically present data, such as an audio file, received from a rechargeable device (such as the rechargeable device 406) located within the charging area. It may be. The device user may access data stored on the rechargeable device 406 via the interface 412, or the data may be transferred from the rechargeable device 406 to the charging device 402 and subsequently accessed. Attention is drawn. Additionally, charging device 402 is configured for operatively coupling with other devices, such as, for example, input device 418 (eg, a keyboard) and output devices 419 and 421. Note that it may be. By way of example only, output device 419 may include a laptop computer and output device 421 may include an entertainment system. It is also noted that the interface 412 may include input devices such as audio and / or video input devices (eg, cameras and / or audio recorders).

During operation of the expected charging system 450, one or more rechargeable devices (eg, rechargeable device 406) may be located within the charging area 410 and transmit wirelessly from the charging device 402. May receive received power. In addition, while wireless power is being transmitted, the user can, via interface 412, from the one or more of the chargeable devices located within the charging area 410, the audio, video, image to be presented by the interface 412. , Alphanumeric text, graphics, or any combination thereof. Additionally, it is noted that the display device 414 may be configured to replicate at least a portion of the display of the selected rechargeable device located within the charging area 410. In addition, the keyboard 418 may be configured to duplicate at least a portion of the keyboard of the selected rechargeable device. It is noted that the charging device 402 may include additional functionality beyond the functionality of the rechargeable device 406. By way of example, a rechargeable device 406, and when the iPod ^®, charging device 402 includes a iTunes ^®, a user is able to create a playlist, and is able to delete a song, to add songs Or may perform any other known functions that may not be available on the rechargeable device 406.

7 illustrates one or more rechargeable devices (eg, rechargeable device 422A, rechargeable device 422B or rechargeable device 422C) and interface located within associated charging region 410 (FIG. 6). A wireless charging system 460 is shown that includes a wireless charging device 402 with 412. As illustrated in FIG. 7, the interface 412 may include a plurality of displays 420A, 420B, and 420C (shown as inactive in FIG. 7 but shown as active in FIGS. 8 and 9), Each display 420A, display 420B and display 420C may be configured to output information about one or more rechargeable devices 422 located within associated charging area 410 (FIG. 6). In particular, each display 420A, display 420B and display 420C may be a video, audio, image, graphic, alphanumeric text, indicator, or related to one or more rechargeable devices 422. It may be configured to output any combination of these.

According to an exemplary embodiment of the present invention, charging system 460 may be configured to exchange data between charging device 402 and one or more rechargeable devices (eg, rechargeable device 422A). More specifically, upon establishment of data or communication link 405 (see FIG. 5), data (eg, music, video, images, calendars, contacts, etc.) may be, for example, charged devices (eg, For example, it may be sent from the 'public' directory of the chargeable device 422A to the charging device 402. In addition, after data or communication link 405 has been established and data has been sent from the chargeable device to charging device 402, the transmitted data may be presented to one or more displays 420A, 420B, or 420C. For example, rechargeable device 422B may transmit one or more photos to charging device 402. Upon receipt of one or more pictures, charging device 402 may be configured to store one or more pictures, such that pictures stored on charging device 402 may be synchronized with pictures stored on rechargeable device 422C. It may be. Thus, a device user may be able to access his or her photos from each of charging device 402 and rechargeable device 422B. In addition, charging device 402 may be configured to display one or more photos on one or more displays (eg, display 420C).

As another example, audio files stored on a chargeable device (eg, rechargeable device 422C) may be converted into audio files stored on chargeable device 422C with audio files stored on chargeable device 422C. May be sent to charging device 402 to synchronize. Thus, the device user may be able to access his or her for example audio files from each of the charging device 402 and the rechargeable device 422C. In addition, charging device 402 may be configured to deliver audio files transmitted from chargeable device 422C audioically. Also, by way of example only, as illustrated in FIG. 8, the charging device 402 may be configured to display an audio “playlist” and related data on the displays 420A and 420B, and the graphical and The texture representation is currently displayed on display 420C.

As another example, charging system 460 is configured to synchronize calendar data stored on charging device 402 with calendar data stored on one or more rechargeable devices (eg, rechargeable device 422A). May be Thus, the device user may be able to access his or her calendar from each of the charging device 402 and the chargeable device 422A. In addition, as illustrated in FIG. 9, charging device 402 may be configured to display information related to a calendar on one or more displays 420A, 420B, and 420C. More specifically, by way of example only, charging device 402 may be configured to display data on display 420B, a list of one or more calendar items on display 420A, and an indication of a calendar on display 420C. It may be. In addition, charging system 460 may be configured to synchronize the plurality of calendars with a universal calendar stored on charging device 402. For example, calendar data stored on electronic device 422A and calendar data stored on electronic device 422C may be synchronized with calendar data associated with a universal calendar stored on charging device 402.

In addition, according to another exemplary embodiment of the present invention, charging system 460 includes a first rechargeable device (eg, rechargeable device 422A) and a second rechargeable device (eg, rechargeable device). (422C) may be configured to exchange data. By way of example only, data associated with a calendar stored on rechargeable device 422A may be synchronized with data associated with a calendar stored on rechargeable device 422C. Additionally, charging system 460 exchanges data between a chargeable device (eg, electronic device 422A) located within an associated charging region and another electronic device that is communicatively coupled to charging device 402. It may be configured to. For example, the list of contacts stored on the chargeable device 422A is sent to the laptop computer 419 (see FIG. 6) that is communicatively coupled to the charging device 402 and on the laptop computer 419. May be stored. It is noted that electronic devices (eg, electronic device 422A and electronic device 422C) may be directly communicatively coupled. For example, charging device 402 may enable a communication link between electronic device 422A and electronic device 422C, after which electronic device 422A and electronic device 422C exchange data directly. You may.

Charging device 402 may be configured to transmit data (video, audio, image, graphic, alphanumeric text, or any combination thereof regarding one or more rechargeable devices) to output devices 419 and 421. Note that it may be. Thus, output device 419, which may include a laptop computer, and output device 421, which may include an entertainment system, may output data. It is also noted that while one or more rechargeable devices are located within the charging area of the charging device 402, the one or more rechargeable devices may receive power wirelessly from the charging device 402. As a result, and in accordance with an exemplary embodiment of the present invention, one or more rechargeable devices may receive wireless power from charging device 402, while at the same time data is transferred to one or more rechargeable devices and charging device 402. It may be shared between them. In addition, charging device 402 may simultaneously output data associated with one or more rechargeable devices.

5, the rechargeable device 406 may also be configured to establish a wireless communication link 407 with a network 409, which may include a local network or a publicly accessible network, such as the Internet. have. The wireless communication link 407 may include any known and suitable wireless communication link. Thus, the charging device 402 may be configured to use the rechargeable device 406 located within the associated charging area to establish a communication link with a network 409 such as the Internet. As a result, charging device 402 may request and receive data from network 409. According to one exemplary embodiment, the charging device 402 may be configured to use the rechargeable device 406 as a wireless modem and may communicate directly with the network 409. In another example embodiment, the charging device 402 may be configured to send a data request to the rechargeable device 406, after which the rechargeable device 406 requests and retrieves data from the network 409. You may. Upon receipt of the requested data, the chargeable device 406 may deliver the data to the charging device 402.

As one example, charging device 402 may download software or firmware updates from network 409 to be installed on that charging device 402. In addition, charging device 402 may download software or firmware updates from network 409 to be installed on other rechargeable device 406 ′. More specifically, charging device 402 may download software or firmware updates for chargeable device 406 ′ via communication links 405 and 407, and then communicate the software or firmware updates. May transmit to the rechargeable device 406 ′ over the link 405 ′. As a more particular example, charging device 402 may be a mobile telephone (eg, rechargeable device 406) located within an associated charging area to establish a communication link (ie, communication links 405 and 407) with the Internet. ) May also download software patches for a digital camera (eg, rechargeable device 406 ′) that is also located within the associated charging area. The software patch may then be delivered to the digital camera via a communication link (ie, communication link 405 ′) between charging device 402 and the digital camera. If the rate of energy use required to establish and maintain the communication link 407 is greater than the rate of the energy receiver from the charging device 402, then the charge device 406 ′ is associated with the chargeable device 406 ′ before establishing the communication link 407. It is noted that the charge level of the battery may be considered.

As mentioned above, and in accordance with an exemplary embodiment of the present invention, charging device 402 may be configured to create and update a charging profile associated with an associated chargeable device. More specifically, charging device 402 may be configured to generate, store, and update data related to the charging history of the associated rechargeable device. For example, the charging device 402 may maintain a record of the number of times the rechargeable device has been charged, the time duration for the charging period of the rechargeable device, and the time zone in which the rechargeable device is charged. Thus, as an example, using an associated charging profile, charging device 402 may be configured to determine that a user of a particular rechargeable device usually charges the rechargeable device at approximately 10:00 PM for a duration of approximately 8 hours. It may be. As a result, a charging profile that includes data related to the charging history of a particular rechargeable device may enable charging device 402 to better predict the charging habits of a user associated with the rechargeable device.

According to an exemplary embodiment, the charging device 402 is optimal for downloading data from the network, downloading data from the rechargeable device, uploading the data to the rechargeable device, or doing any combination thereof. It may be configured to use one or more charging profiles of relevant chargeable devices to determine time. For example, if charging device 402 wants to synchronize data stored within charging device 402 with data stored on a media player located within associated charging area 410 (FIG. 6), charging device 402 is not capable of that. The charging profile of the media player may be used to determine the optimal time to complete the operation. As another example, if charging device 402 wants to establish a communication link with the Internet via a mobile phone and download a software patch for a digital camera, charging device 402 determines the optimal time to complete its operation. The charging profile of the digital camera and the charging profile of the mobile phone may be used for this purpose.

10 is a flow diagram illustrating a method 680, in accordance with one or more illustrative embodiments. The method 680 may include transmitting wireless power from the transmitting antenna of the charging device to one or more rechargeable devices proximate the charging device (indicated by numeral 682). The method 680 may further include synchronizing data stored on the charging device with data stored on at least one of the one or more rechargeable devices (indicated by the number 684).

Although wireless power transmission may occur when one device in the wireless power transmission system includes a transmitter and the other device includes a receiver, a single device may include both a wireless power transmitter and a wireless power receiver. Thus, this embodiment can be configured to include dedicated transmit circuits (eg, transmit power conversion circuits and transmit antennas) and dedicated receiver circuits (eg, receive antennas and receive power conversion circuits). Accordingly, various exemplary embodiments disclosed herein identify a bidirectional power transmission, ie the ability of a device to receive and transmit wireless power from the device.

Various advantages of this configuration include the ability of the device to receive and store wireless power and subsequently transmit or "donate" the stored power to other receiving or "absorbing" devices. Thus, such a configuration may also be considered to be a "peer-to-peer" "charitable" charging configuration. Such a device charging device provides considerable convenience at the location where charging occurs (ie, the receiver or "absorbing" device does not necessarily receive charge from a charging pad that is inadvertently located or unavailable).

According to another embodiment of the present invention, a rechargeable device having at least one antenna may be configured to transmit wireless power to at least one other rechargeable device and receive wireless power from at least one other rechargeable device. More specifically, referring to FIG. 11, the first rechargeable device 480 with the antenna 482 may be configured to transmit wireless power to the second rechargeable device 484 with the antenna 486. And vice versa. Thus, each of the first rechargeable device 480 and the second rechargeable device 484 may be configured for two-way wireless charging. An exemplary approach to such two-way wireless charging is described in US patent application Ser. No. 12 / 552,110, entitled "BIDIRECTIONAL WIRELESS POWER TRANSMISSION," filed September 1, 2009, the details of which are hereby incorporated by reference. It is described.

12 illustrates an electronic device 502 with an antenna 504 coupled. Electronic device 502 may include any known electronic device. In the example illustrated in FIG. 12, the electronic device 502 includes a laptop computer, and the antenna 504 is coupled to a lid (ie, a monitor) of the laptop computer. According to one exemplary embodiment, antenna 504 and associated circuitry (not shown) may be configured to receive wireless power and also to transmit wireless power. According to another exemplary embodiment, as illustrated in FIG. 13, the electronic device 502 is configured for transmitting wireless power and a receiving antenna 506 configured for receiving wireless power and associated receiver circuitry (not shown). Transmit antenna 508 and associated transmitter circuitry (not shown). Each of antenna 504, receive antenna 506, and transmit antenna 508 may be connected between any of its antennas and any metallic components of electronic device 502 (eg, metallic display of electronic device 502). It is noted that it may be coupled to the electronic device 502 in some manner to avoid electrical interference.

In any example embodiment, an antenna configured to receive wireless power (ie, antenna 504 or receiving antenna 506) is an element of the electronic device 502, such as a power circuit (eg, in FIG. 2). Matching circuit 132 and rectifier and switching circuit 134), a battery (eg, battery 136 of FIG. 2), or any combination thereof. Thus, power received by antenna 504 or antenna 506 may be delivered to an element of electronic device 502 (eg, a battery, power circuit, or any combination thereof). Also, an antenna configured to transmit wireless power (ie, antenna 504 or transmit antenna 508) may be a power source of electronic device 502, such as a power circuit (eg, oscillator 122 of FIG. 2, Matching circuit 132, and rectifier and switching circuit 134), a battery (eg, battery 136 of FIG. 2), or any combination thereof. Thus, the antenna may be an antenna 504 or antenna that may wirelessly transmit power from the power supply (eg, battery, power circuit, or any combination thereof) of the electronic device 502 later within the associated near field area. May be passed to 508.

14 illustrates a state machine diagram 600 for an electronic device configured to receive wireless power and also to transmit wireless power. As long as the energy level (ie, the amount of battery charge) of the electronic device (eg, electronic device 502) is greater than the predetermined threshold level, the electronic device may operate in a “transmission ready state” 602. Thus, if the electronic device does not have enough charge to charge the other electronic device, or if charging the other electronic device consumes a great deal of power from the electronic device and the electronic device requires immediate charging, then the electronic device is “ May not operate in the “ready to transmit” state 602.

At any time as long as the electronic device is in an energy ready state for transmission 602, another electronic device configured to receive wireless charges is located within the charging area of the electronic device, and an authentication process between the electronic devices may occur. After the devices are successfully authenticated, the electronic device may transition to the “send state” 604, which may transmit power to another chargeable device. Further, at any time as long as the electronic device is in an energy ready state 602, the electronic device is located in a charging area of another electronic device configured to transmit wireless power, and an authentication process between the electronic devices may occur. Upon successful authentication, the electronic device may transition to the “receive state” 606, which may receive wireless charge from another electronic device. It will be noted that the determination of whether to accept or reject the charge request from the chargeable device may depend on user-defined preferences. The device user may also receive a real-time prompt asking whether to accept or reject the power request. It is also noted that the electronic device may be configured to transmit and receive wireless power at the same time. Thus, the electronic device may be in transmit state 604 and receive state 606 at the same time.

As will be understood by one of ordinary skill in the art, “surface computing” is a term related to technology in which a user may interact with a computer and / or electronic device through a surface instead of a keyboard, mouse or monitor. Multi-touch surfaces may facilitate surface computing by allowing manipulation of objects displayed on the surface via surface contact (eg, touch by multiple fingers or multiple users). In addition, content may be transferred between two or more devices located on the surface of the object using a unique identifier assigned to each device.

15 illustrates a surface computing device 700 configured for wireless charging, in accordance with various exemplary embodiments of the present invention. Device 700 may include a display, which may include a touch sensitive plasma screen. In addition, the device 700 may include a camera, a projector, a speaker, and the like, as understood by one of ordinary skill in the art. In addition, the wireless charger 700 may include a transmit antenna 702 configured to transmit power wirelessly within an associated near field region.

As configured, the device 700 may detect and authenticate the presence of an electronic device located on the surface 708 of the device 700. The presence of a device, eg, mobile phone 704 or digital camera 706, located on device 700 may be characterized by the presence of a transmitter antenna 702 and an antenna within an electronic device (eg, mobile phone 704). May be determined by detecting field disturbances of a magnetic field established between the two and not configured to receive wireless power. In addition to detecting the presence of an electronic device, long disturbances may indicate that the electronic device is ready to receive wireless power or is ready to transmit or receive information. For example, an electronic device (such as digital camera 706) located on device 700 requests wireless charging, requests the establishment of a wireless data link, such as a Bluetooth (BT) connection, or both. The signal to perform may be transmitted via a wireless charging protocol. It will be noted that any known and suitable data link may be within the scope of the present invention. For example, the data link may include a Bluetooth connection, a Wi-Fi connection, a 60 GHz connection or a UWB connection.

Before the wireless data link (eg, BT connection) may be established between the electronic device (eg, mobile phone 704 or digital camera 706) and the device 700, the device 700 is connected to an electronic device. It is noted that key exchange may be initiated to 'pair' the device and the device 700. Once paired, the data link may be initiated to allow data to be transferred between the device 700 and the electronic device being charged. More specifically, upon establishment of a data link, data such as photos, videos or music may be sent to device 700, for example, from the 'public' directory of the electronic device. In addition, after a data link has been established and data has been transferred from the electronic device to the device 700, the user may interact with the data in a user-friendly multi-touch manner, while on the surface 708 An electronic device located at receives wireless charges. As one example, data transmitted from an electronic device may be delivered by device 700 (eg, a picture may be displayed or music may be played) while the electronic device is charging. It will be noted that the device user may access and interact with the data stored on the electronic device without transmitting the data to the device 700.

16 illustrates another surface computing device 800 configured for wireless charging, in accordance with various exemplary embodiments of the present invention. The device 800 includes a transmit antenna 820 configured to wirelessly transmit power within an associated near field region. According to one exemplary embodiment, device 800 is configured to display an interactive menu having interactive elements (ie, controllers) associated with at least one of the one or more electronic devices located on the device. It may be implemented as a surface. The device 800 may include a camera 804 and a projector 802 configured for receiving and transmitting images on the surface 808 of the device 800. Image 810 is such an image showing a keypad from mobile phone 704 projected on surface 808 of device 800. The projected image of the keypad may enhance the use of the mobile phone 704 by presenting a larger area than is available in the limited space available on the actual keypad of the mobile phone 704 to manipulate the phone controls. . Additionally, the projected image of the keyboard may include additional functionality compared to mobile phone 704. For example, the projected image may display a QWERTY keyboard compared to a mobile phone that only includes a number pad. In addition, device 800 may include speakers 801 configured for audioically delivering data, such as an audio file, received from an electronic device, such as mobile phone 704.

According to another example embodiment, the device 800 may be configured to communicate with a standalone computer. By way of example only, the device 800 may be configured to communicate with a standalone computer via wireless means, such as via a USB adapter or a USB dongle. Thus, a standalone computer and associated display may be used to facilitate information exchange over / from the Internet, or to / from electronic devices disposed on device 800. More specifically, FIG. 17 shows that the device 800 communicates with the computer 900 via a USB dongle 902 that provides a communication link between the device 800 and the computer 900 by, for example, a Bluetooth connection. Illustrates a system that is configured to. In this example embodiment, the monitor of computer 900 may be used to manipulate data on an electronic device (eg, mobile phone 704) located on the surface of device 800. Additionally, computer 900 may provide a communication link to the Internet to enable connection between the electronic device and the Internet. Thus, for example, data may be transferred between mobile phone 704 and computer 900, while mobile phone 704 is being charged via transmit antenna 820.

As will be appreciated by those skilled in the art, the mobile telephone may be programmed to operate in various profile settings. For example, "alarm mode" and "alarm volume" and "alarm tone" may each be programmable. More specifically, as an example, the mobile telephone may be programmed to operate in "silent" mode, "normal" mode, "loud" mode or "vibrate" mode. have. The mobile phone may also be programmed to operate at various volume levels, such as "low" volume, "medium" volume or "high" volume. Also, an "alarm tone" may be programmable, and may include, for example, "beep", "melody" or "ring".

18 illustrates a rechargeable device 920, which may include, by way of example only, a mobile telephone. According to an exemplary embodiment of the present invention, the rechargeable device 920 may be configured to automatically transition from its current profile setting to a user-defined "charge" profile upon detection of the power source 922. By way of example only, power source 922 may include a wireless charging device, a wired power source, or both. In addition, according to another exemplary embodiment of the present invention, the rechargeable device 920 may be configured to automatically transition back to a previous profile setting upon removal of the power source 922. By way of example only, rechargeable device 920, which may initially be programmed (ie, set) in a “bibrate” profile, will include a “high” volume “melody” alarm tone upon detection of power source 922. It may also automatically transition to a user-defined "fill" profile that may be. Additionally, upon removal of the power source 922, the rechargeable device 920 may be configured from the "charge" profile to the profile (ie, "bibrate") in which the chargeable device 920 was operating prior to detection of the power source 922. You can also automatically transition back to "profile".

Note that power source 922 may be detected via any known manner. For example, in an example embodiment in which the power source 922 comprises a wired power source, the power source 922 is coupled to the power source 922 of the rechargeable device 920 via a power connector such as a power cord. May be detected at a time. In addition, in the exemplary embodiment where the power source 922 includes a wireless power source, the power source 922 may be detected by only NFC means or reflected impedance means by way of example.

In addition, as will be appreciated by those skilled in the art, a wireless charging device (eg, charging device 402) may be programmed by a user via a user interface (eg, a keyboard or display) associated with the wireless charging device. It may include various wireless charging user-programmable functions that may be present. For example, a wireless charging device may be programmed to automatically reduce or stop power transmission during daytime and automatically increase power transmission during nighttime, via an associated interface located on the wireless charging device. . As another example, the wireless charging device may be programmed to transmit power wirelessly for a particular duration, via an associated interface located on the wireless charging device. As another example, the wireless charging device may be programmed to automatically reduce power transmission upon determining that a person is in proximity to the wireless charging device, via an associated interface located on the wireless charging device.

19 illustrates a charging system 930 having a wireless charging device 932 and at least one electronic device 934. According to an exemplary embodiment of the invention, the electronic device 934 may include an interface 936, such as a multimedia interface, and may be configured to program various wireless charging functions of the wireless charging device 932. It will be noted that the electronic device 934 may include the multimedia functionality needed to remotely program another electronic device, as understood by one of ordinary skill in the art. In addition, charging device 932 and electronic device 934 may each include a standardized wireless communication interface to enable wireless communication therebetween. Thus, charging system 930 may enable a user to program any user-programmable functionality of charging device 932 via interface 936 of electronic device 934. By way of example only, the charging device 932 may be programmed to wirelessly transmit power for a specific duration, via the interface 936 of the electronic device 934. As another example, charging device 932 automatically reduces power transmission during daytime time (eg 8AM to 8PM) and also at night time (eg 8PM) via interface 936 of electronic device 934. To 8AM) may be programmed to increase power transmission.

20 is a flow diagram illustrating another method 690, in accordance with one or more illustrative embodiments. The method 690 may include programming at least one user-programmable function of the wireless charging device to an electronic device having a multimedia interface (indicated by number 692).

21 illustrates a charging system 950 that includes a rechargeable device 952 and a device 954. By way of example only, the device 954 may include a Bluetooth headset. According to an exemplary embodiment, the rechargeable device 952 may be configured as a beacon transmitter and the device 954 may be configured as a beacon receiver. Thus, rechargeable device 952 and device 954 may be configured to communicate over a wireless interface 966, such as a Bluetooth interface. The rechargeable device 952 may include a multimedia interface 956 and at least one antenna 958 and be configured to receive wireless power from a wireless charging device 960 having at least one transmit antenna 962. It may be. The charging system 950 may further include a tether system 964, which may be distributed on the rechargeable device 952, the device 954, or a quantum device.

Upon location of the rechargeable device 952 in the charging area of the charging device 960 (eg, public charging device), the tether system 964 is configured to “lock” the multimedia interface 956. May be The multimedia interface 956 may be "unlocked" upon receipt of a valid pin entered by the device user, for example. In addition, the tether system 964 may be configured to transmit a signal from the chargeable device 952 to the device 954. The device 954 may be configured to receive a signal transmitted over the interface 966 as long as the device 954 remains within the communication range of the rechargeable device 952. In an event where device 954 is removed from a communication range with rechargeable device 952, device 954 can generate an identifiable alert (eg, to notify the device user that device 954 is out of range). First audible alert). Also, at any time during operation, if the rechargeable device 952 is removed from the charging area of the charging device 960, the rechargeable device 952 may transmit a signal to the device 954, upon receipt of the signal, The device 954 may issue an identifiable alert (eg, a second different audible alert) to notify the device user that the rechargeable device 952 has been removed from the charging area of the charging device 960. .

The operation of the expected charging system 950 will now be described. Initially, a device user may place a rechargeable device 952 within a charging area of a public charging device, such as charging device 960. It will be noted that the public charging device may be located in a public place, such as, for example, an airport, a restaurant, a hotel, or the like. In addition, while carrying device 952, a device user may leave an area proximate to charging device 960. By way of example only, a device user may carry the device 952 in a pocket or attach the device 952 to their ears. In the event that device 954 is removed out of communication with the rechargeable device 952, device 954 can generate an identifiable alert (eg, audible) to notify the device user that device 954 is out of range. Alerts). Also, if the chargeable device 952 is removed from the charging area of the charging device 960 (eg, a third party willfully or accidentally removes the chargeable device 952 from the charging device 960), the chargeable Device 952 may send a signal to device 954, and upon receipt of the signal, device 954 informs the device user that rechargeable device 952 has been removed from the charging area of charging device 960. It may issue an identifiable alert (eg, another different audible alert) to notify. Thus, charging system 950 may provide a safety device to be used while using a public charging device.

Those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic or magnetic particles, optical systems or optical particles, Lt; / RTI >

Those skilled in the art will also appreciate that the various exemplary logic blocks, modules, circuits, and algorithm steps described in conjunction with the exemplary embodiments disclosed herein may be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the exemplary embodiments of the invention.

The various illustrative logic blocks, modules, and circuits described in conjunction with the exemplary embodiments disclosed herein are general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programs designed to perform the functions described herein. It may be implemented or performed in a possible gate array (FPGA) or other programmable logic device, separate gate or transistor logic, separate hardware components, or any combination thereof. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented in a combination of computing devices, eg, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The steps of a method or algorithm described in conjunction with the example embodiments disclosed herein may be implemented directly in hardware, in a software module executed by a processor, or in a combination thereof. Software modules include random access memory (RAM), flash memory, read-only memory (ROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), registers, hard disks, removable disks, CD- May reside in a ROM, any other form of storage medium known in the art. An example storage medium is coupled to the processor such that the processor can read information from and write information to the storage medium. Alternatively, the storage medium may be integral with the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Alternatively, the processor and the storage medium may reside as discrete components in a user terminal.

In one or more illustrative embodiments, the functions described above may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media includes both communication media and computer storage media including any medium that facilitates transfer of a computer program from one place to another. The storage medium may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage device, magnetic disk storage device or other magnetic storage device, or desired program code in the form of instructions or data structure. And any other medium that can be used to carry or store the computer and that can be accessed by a computer. Also, any context is properly referred to as a computer readable medium. For example, if the software is transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, wireless and microwave, the definition of the medium Examples include wireless technologies such as coaxial cable, fiber optic cable, twisted pair, DSL, infrared, wireless and microwave. Discs and discs, as used herein, include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVD), floppy disk (floppy disk), and the blue-includes-ray disc (blu-ray disc), wherein the disk (disk) on a hand to reproduce data magnetically, disk (disc) by using a laser reproduce data optically Let's do it. Combinations of the above should also be included within the scope of computer-readable media.

The previous description of the disclosed exemplary embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these exemplary embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the example embodiments shown herein but will be to the best of its scope in accordance with the principles and novel features disclosed herein.

Claims (58)

delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete As a wireless charging device,
A transmitter configured to wirelessly transmit power at a level sufficient to charge or power the rechargeable device via a wireless power transfer field; And
A controller,
The controller comprising:
Detecting a request for wireless charging, the request being received from the rechargeable device via the wireless power transfer field;
Receiving an indication that the rechargeable device is ready to send or receive information, the indication being received from the rechargeable device via the wireless power transfer field; And
In response to the indication received, establishing a wireless data link with the rechargeable device, wherein the wireless data link is different from a power link established by the transmitter via the wireless power transmission field; And use the wireless data link to establish the wireless data link. 29. The method of claim 28,
The controller comprising:
And detection circuitry configured to detect field disturbances of a magnetic field established between the receiver and the transmitter of the rechargeable device indicating the request for wireless charging. 29. The method of claim 28,
The wireless data link comprises at least one of an NFC connection, a Bluetooth connection, a Wi-Fi connection, a 60 GHz connection, or a UWB connection. 29. The method of claim 28,
The controller may further comprise:
And perform an authentication process between the wireless charging device and the rechargeable device before the wireless data link is established. 29. The method of claim 28,
And the request is received via a wireless charging protocol. 29. The method of claim 28,
The controller may further comprise:
And initiate the key exchange to pair the rechargeable device and the wireless charging device before the wireless data link is established. 29. The method of claim 28,
The controller may further comprise:
And exchange data between the wireless charging device and the rechargeable device over the wireless data link. 35. The method of claim 34,
And the data comprises at least one of photos, videos, or music. 35. The method of claim 34,
And a user interface configured to allow a user to interact with the data. As a method for wireless charging,
Detecting at the wireless charging device a request to wirelessly charge over a wireless power transfer field, the request being received from a rechargeable device;
Receiving, via the wireless power transmission field, an indication that the rechargeable device is ready to send or receive information;
In response to the indication received via the wireless power transfer field, establishing a wireless data link with the rechargeable device, wherein the wireless data link is different from a power link established through the wireless power transfer field, Establishing the wireless data link not using the power link; And
Wirelessly transmitting power to a level sufficient to charge or power the rechargeable device via the wireless power transfer field. 39. The method of claim 37,
Detecting the request,
Detecting a field disturbance of a magnetic field established between a receiver and a transmitter of the rechargeable device indicating that the rechargeable device is ready to receive wireless power. . 39. The method of claim 37,
And initiating a key exchange to pair the rechargeable device and the wireless charging device before the wireless data link is established. 39. The method of claim 37,
Exchanging data between the wireless charging device and the rechargeable device over the wireless data link. 39. The method of claim 37,
The wireless data link comprises at least one of an NFC connection, a Bluetooth connection, a Wi-Fi connection, a 60 GHz connection, or a UWB connection. 39. The method of claim 37,
And performing an authentication process between the wireless charging device and the rechargeable device before the wireless data link is established. As a wireless charging device,
Means for wirelessly transmitting power to a level sufficient to power or charge the rechargeable device via a wireless power transfer field;
Means for detecting a request for wireless charging via the wireless power transfer field, wherein the request is received from the rechargeable device;
Means for receiving, via the wireless power transfer field, an indication that the rechargeable device is ready to send or receive information; And
Means for establishing a wireless data link with the rechargeable device in response to the indication received via the wireless power transfer field, the wireless data link being different from the power link established through the wireless power transfer field, Means for establishing the wireless data link that does not utilize the power link. 44. The method of claim 43,
Means for detecting the request,
Field disturbances established between the receiver of the rechargeable device and the means for transmitting the power wirelessly, indicating that the rechargeable device is ready to receive wireless power or is ready to transmit or receive information. means for detecting field disturbance. 44. The method of claim 43,
The wireless data link comprises at least one of an NFC connection, a Bluetooth connection, a Wi-Fi connection, a 60 GHz connection, or a UWB connection. 44. The method of claim 43,
And the request is received via a wireless charging protocol. A rechargeable device configured to wirelessly receive power, comprising:
A wireless power receiver configured to wirelessly receive power from a wireless charging device via a wireless power transfer field at a level sufficient to charge the rechargeable device or to power the rechargeable device; And
A processor,
The processor comprising:
Providing a request to the wireless charging device for wireless charging, the request being provided through the wireless power transfer field;
Sending an indication that the rechargeable device is ready to send or receive information, the indication being provided via the wireless power transfer station; And
In response to transmitting the indication via the wireless power transfer field, establishing a wireless data link with the wireless charging device, wherein the wireless data link is different from a power link established through the wireless power transfer field, And configured to establish the wireless data link without using the power link. 49. The method of claim 47,
The processor comprising:
Causing field disturbances of magnetic fields established between the transmitter and the receiver of the wireless charging device indicating that the rechargeable device is ready to receive wireless power or is ready to transmit or receive information. And provide the request by doing so. 49. The method of claim 47,
The wireless data link includes at least one of an NFC connection, a Bluetooth connection, a Wi-Fi connection, a 60 GHz connection, or a UWB connection. 49. The method of claim 47,
And the processor is further configured to exchange data between the rechargeable device and the wireless charging device over the wireless data link. As a method of wirelessly receiving power,
Providing a request from a rechargeable device to a wireless charging device, wherein the request is provided over a wireless power transfer field;
Transmitting an indication that the rechargeable device is ready to send or receive information, the indication being provided through the wireless power transfer station;
In response to transmitting the indication via the wireless power transfer field, establishing a wireless data link with the wireless charging device, wherein the wireless data link is different from a power link established through the wireless power transfer field. Establishing the wireless data link without using the power link; And
Wirelessly receiving power from the wireless charging device via the wireless power transfer field at a level sufficient to charge the rechargeable device or to power the rechargeable device. . 52. The method of claim 51,
Providing the request includes causing field disturbance of a magnetic field established between a receiver and a transmitter of the rechargeable device. 52. The method of claim 51,
And wherein the wireless data link comprises at least one of an NFC connection, a Bluetooth connection, a Wi-Fi connection, a 60 GHz connection, or a UWB connection. 52. The method of claim 51,
The method of wirelessly receiving power further comprises exchanging data between the rechargeable device and the wireless charging device over the wireless data link. A rechargeable device configured to wirelessly receive power, comprising:
Means for wirelessly receiving power via a wireless power transfer field from a wireless charging device at a level sufficient to charge the rechargeable device or to power the rechargeable device;
Means for providing a request for wireless charging to the wireless charging device via the wireless power transfer field;
Means for transmitting, via the wireless power transmission field, an indication that the rechargeable device is ready to send or receive information; And
Means for establishing a wireless data link with the wireless charging device in response to transmitting the indication via the wireless power transmission field, the wireless data link being different from a power link established through the wireless power transmission field. Means for establishing the wireless data link that does not utilize the power link. 56. The method of claim 55,
Means for providing the request,
A field disturbance of a magnetic field established between the transmitter of the wireless charging device and the means for receiving power, indicating that the rechargeable device is ready to receive wireless power or is ready to transmit or receive information. means for causing disturbance. 56. The method of claim 55,
The wireless data link includes at least one of an NFC connection, a Bluetooth connection, a Wi-Fi connection, a 60 GHz connection, or a UWB connection. 56. The method of claim 55,
The rechargeable device further comprises means for exchanging data between the rechargeable device and the wireless charging device via the wireless data link.

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