Source: http://www.google.com/patents/US20060205381?dq=patent:+7360079
Timestamp: 2014-11-26 09:29:30
Document Index: 86658420

Matched Legal Cases: ['art 956', 'art 956', 'art 956', 'art 1002', 'art 1002', 'art 1002']

Patent US20060205381 - Adapting portable electrical devices to receive power wirelessly - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsWireless power receiving apparatus (150) is retrofitted to a portable electrical device (100) to enable the device to receive power wirelessly. The apparatus comprises a power-receiving element (200) adapted to be attached to the device, e.g. by adhesive (201), and also being adapted to receive power...http://www.google.com/patents/US20060205381?utm_source=gb-gplus-sharePatent US20060205381 - Adapting portable electrical devices to receive power wirelesslyAdvanced Patent SearchPublication numberUS20060205381 A1Publication typeApplicationApplication numberUS 10/539,062Publication dateSep 14, 2006Filing dateDec 16, 2003Priority dateDec 16, 2002Also published asCN1726450A, CN100347633C, EP1573489A2, EP2275895A2, EP2275895A3, EP2275896A2, EP2275896A3, EP2275897A2, EP2275897A3, EP2330480A1, US8055310, US8280453, US8560024, US20110210619, US20120319500, US20140011551, WO2004055654A2, WO2004055654A3Publication number10539062, 539062, US 2006/0205381 A1, US 2006/205381 A1, US 20060205381 A1, US 20060205381A1, US 2006205381 A1, US 2006205381A1, US-A1-20060205381, US-A1-2006205381, US2006/0205381A1, US2006/205381A1, US20060205381 A1, US20060205381A1, US2006205381 A1, US2006205381A1InventorsPilgrim Beart, David Whitewood, Lily Cheng, James HayOriginal AssigneeBeart Pilgrim G, Whitewood David P, Cheng Lily K, Hay James WExport CitationBiBTeX, EndNote, RefManReferenced by (35), Classifications (12), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetAdapting portable electrical devices to receive power wirelesslyUS 20060205381 A1Abstract Wireless power receiving apparatus (150) is retrofitted to a portable electrical device (100) to enable the device to receive power wirelessly. The apparatus comprises a power-receiving element (200) adapted to be attached to the device, e.g. by adhesive (201), and also being adapted to receive power wirelessly from a transmitter of power when the element and transmitter are in proximity with one another. One or more power connectors (203) are connected electrically to the power-receiving element and are adapted to be connected, when the apparatus is in use, to one or more corresponding power connectors (101) of the portable electrical device to deliver power received by the element to the device. The power-receiving element may be in the form of a sticker or may be carried by or incorporated in a replacement cover portion for the portable electrical device. Images(10) Claims(49)
FIG. 1 shows parts of apparatus 150 according to a first embodiment of the present invention, and an example portable electrical device (mobile handset) 100 with which the apparatus is used. As originally manufactured the device has no wireless power receiving capability. As shown in side view in FIG. 1 a the device 100 has a power-connector 101 which in this case is a socket. The apparatus 150 comprises a substantially flat power-receiving element 200, a layer of adhesive 201, a flexible connecting member (flexible wiring) 202 and a power-connector 203 capable of being plugged-in to the device's power-connector 101. FIGS. 1 b and 1 c show end and plan views of the arrangement of FIG. 1 a. The rear face (underside) of the mobile device 100 is uppermost in FIG. 1 a, and it is to this face that the element 200 is attached. FIGS. 2 ato 2 c shows corresponding views to those of FIGS. 1 a to 1 c but for apparatus 160 according to the second embodiment of the present invention. In this case the device power connections (first connector means) 111 a,b are contact strips instead of a socket. These device power connections 111 a,b are adapted to connect to corresponding mating strips (second connector means�not shown) of external equipment (not shown) such as a charger. A power connector unit 213 of the apparatus has corresponding mating strips (third connector means) 215 a,b on an inner face 214 thereof which make electrical contact with the device's power connections 111 a,b. In addition, further connectors (fourth connector means) 217 a,b are provided on an outer face 216 of the power connector unit 213 so that other equipment, for example an in-car hands-free unit or charger, having the second connector means may still be connected. These further connectors 217 a,b are connected electrically to the corresponding contacts 215 a,b by a pass-through connection arrangement incorporated into the power connector unit 213. The connectors 215 a,b and 217 a,b may include connectors used for purposes other than power delivery, for example input/output of signals and data FIGS. 3 a and 3 b show plan and side views respectively of one example of a substantially flat power-receiving element 200 for use in embodiments of the present invention. A magnetic core consists of six strips of amorphous metal 400 each measuring 50�30�0.02 mm, stacked. Around these is wound a coil 300, which could be for example of copper wire, tape, or a stamped or pressed metal. In this case, the coil passes around the core 30 times, with a centre-tap, providing current to three connections 202 which connect to further circuitry described later with reference to FIG. 4. The entire element is readily flexible, which is useful in making it conform to any non-flat part of the device to which it is applied, and also makes it less fragile, since the entire element can be less than 0.2 mm thick. Further information regarding the power-receiving element of the example shown in FIGS. 3 a and 3 b, and regarding further examples of suitable power-receiving element is given in our patent publications WO-A-03/096361 and WO-A-03/096512, the entire contents of which are incorporated herein by reference. Various designs of a transmitter of wireless power suitable for use with the power-receiving element are also disclosed in these patent publications. FIG. 4 shows circuitry 450 capable of converting the alternating current delivered by the power receiving element into power suitable for, use in a portable electronic device. A parallel-resonating capacitor 501 tunes the coil, which allows increased power transfer. A value of 100's of nF is typical, depending on the exact core materials and coil construction, and therefore inductance. The alternating current is full-wave rectified by diodes 500. Schottky diodes with a forward voltage drop of 0.3 V provide best performance. Capacitor 502 provides smoothing of the DC. The voltage at this point is unregulated, which may be sufficient to send to subsequent electronics within the portable device, if it is capable of taking such. Optional voltage regulator 503 limits the voltage for devices which are not capable of taking an unregulated supply. This regulator may be a linear or switch mode type, and may optionally also contain other protection and system management circuitry. Optional indicator 504 indicates that power is being received. An alternative configuration to that shown in FIGS. 3 a, 3 b and 4 would be to use a full bridge rectifier instead of diodes 500, removing the need for the centre-tap, but increasing the total power loss. With this configuration, the tuning capacitor may be parallel-resonant or series-resonant. FIG. 5 shows a detail view of one implementation of a power connector 600. A barrel-shaped protrusion carries two conducting rings 601 and 602 which mate with contacts within the power input socket of the portable device. The circuitry 450 of FIG. 4 is contained within the power connector, and the optional power indicator 504 is visible externally. Optionally the connector 600 is removable from an end 603 of the flexible wiring 202, allowing different power connectors to be fitted to suit the particular device, each with the appropriate circuitry (power electronics) 450. Alternatively, one end of the flexible wiring 202 could be removable from the power-receiving element 200 and the other end attached permanently to the power connector 600. This would allow the power connector 600 and flexible wiring 202 to be sold as one unit, and the power-receiving element to be sold as another unit. Again, this would make it possible to offer different versions of the power connector plus flexible wiring to work with different portable electrical devices, whilst offering only a single design of power-receiving element. The removable connections between the flexible wiring and the power connector and/or power-receiving element can be made by any suitable electrical connection arrangement such as a plug and socket. A preferred implementation of the present invention is illustrated schematically in FIG. 6. In this implementation, the power-receiving element is in the form of a �sticker� 700. The element 700 has a layer of adhesive 702 on one surface 701 thereof. The element is supplied with a removable backing sheet 703 which protects the adhesive 702 prior to attachment of the element to the portable electrical device. The backing sheet 703 is peeled off by a user to expose the layer of adhesive 702 on surface 701. After peeling off the backing sheet 703 the user simply presses the power-receiving element on its adhesive side 702 to the portable electrical device. FIG. 7 shows a schematic perspective view of a power-receiving element in another embodiment of the present invention. In this embodiment the power-receiving element 800 has, on its side 801 which will be visible to a user when the element is attached to the device, a transparent pocket 802. An insert 803, for example a slip of paper or card, is carried within the pocket 802. The insert may bear text or pictures, for example a logo or advertising. Another preferred implementation of apparatus embodying the present invention is in the form of a replacement cover portion of the portable electrical device itself. There are several types of portable electrical device commercially available which have replaceable cover portions. Handsets for use in mobile communications networks made by several major manufacturers are one example. Replacement cover portions for such devices can advantageously carry or incorporate at least the power-receiving element of apparatus embodying the present invention. FIG. 8 shows a schematic perspective view of such a handset 900. The handset 900 has a battery compartment 902 for holding a removable battery pack 904. The removable battery pack 904 is, for example, a rechargeable battery pack. The battery pack 904 has terminals (not shown) which connect to corresponding battery connectors 906 of the handset 900 within the battery compartment 902 when the battery pack 904 is installed in the battery compartment. The handset 900 also has a power connector 908 at a bottom end 910 thereof. A replacement cover portion 950 according to an embodiment of the present invention is adapted to be fitted to the handset 900. The replacement cover portion in this embodiment is a rear cover portion and covers the battery compartment 902 of the handset 900 as well as other parts thereof The cover portion 950 has on its inner face or incorporated within it a power-receiving element 952. The element 952 may, for example, be the same as the power-receiving element 200 described hereinbefore. The cover portion 950 is designed to extend at one end 954 beyond the bottom end 910 of the handset 900. At the end 954 the cover portion 950 has a power connector part 956 carrying one or more power connectors 958. The power connector(s) is/are connected in some suitable way (not shown) to the power-receiving element 952, either directly or via power conditioning circuitry such as the circuitry 450 of FIG. 4. The power connector(s) 958 is/are adapted to connect to the corresponding power connector(s) of the handset power connector 908. This arrangement is convenient in that installation of the cover portion 950 on the handset 900 automatically makes the required electrical connections between the power-receiving element 952 and the power connector 908 of the handset If necessary, the power connector part 956 of the cover portion 950 may be connected semi-rigidly (e.g. resiliently) instead of rigidly to the remaining parts of the cover portion 950. This can make it easier for the power connector(s) 958 of the cover portion to be connected to the corresponding power connector(s) of the handset 900 when the cover portion is being fitted to the handset. FIG. 9 shows another embodiment in which the power-receiving element is carried by or incorporated in a replacement cover portion. In FIG. 9, a replacement cover portion 1000 does not have the extended end 954 or the power connector part 956 of the replacement cover portion 950 of FIG. 8. Instead, an internal power connector part 1002 is connected, preferably via power conditioning circuitry such as the circuitry 450 of FIG. 4, to the power-receiving element 952. The connection may be made using flexible wiring 1004. The power connector part 1002 is sufficiently thin to enable it to be interposed between the battery terminals of the battery pack 904 and the power connectors 906 formed within the battery compartment 902 of the handset 900. In a similar way to that described previously with reference to FIG. 2, the power connector part 1002 has a set of contacts on both its main faces. The two sets of contacts are connected together by a pass-through connection arrangement. This enables the power from the battery pack 904 to be supplied to the power connectors 906 when the power-receiving element is not receiving power wirelessly from a transmitter. FIG. 10 shows yet another embodiment in which a replacement cover portion 1050 carries or incorporates a rechargeable battery pack 1054 in addition to a power-receiving element 952. The electrical connections between the power receiving element 952 and the battery pack 1054 are made by suitable means (not shown) incorporated in or carried by the cover portion 1050. The fitting of the replacement cover portion 1050 to the handset 900 brings the battery terminals of the battery pack 1054 into contact with the power connectors 906 of the handset 900. The preferred features of the invention are applicable to all aspects of the invention and may be used in any possible combination Throughout the description and claims of this specification, the words �comprise� and �contain� and variations of the words, for example �comprising� and �comprises�, mean �including but not limited to�, and are not intended to (and do not) exclude other components, integers, moieties, additives or steps. 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SupplyUS20110275332 *Jul 20, 2011Nov 10, 2011Broadcom CorporationInductive powering for a mobile communication device and a radio frequency integrated circuitUS20120049986 *Dec 21, 2010Mar 1, 2012Electronics And Telecommunications Research InstituteApparatus for reducing electric field and radiation field in magnetic resonant coupling coils or magnetic induction device for wireless energy transferUS20120106103 *Jun 19, 2011May 3, 2012Tanios NohraRadio frequency energy harvesting enclosure for radio frequency connected devicesUS20140113684 *Jan 2, 2014Apr 24, 2014Broadcom CorporationInductive powering for a mobile communication device and method for use therewithEP2146414A1Jul 7, 2009Jan 20, 2010ConvenientPower HK LimitedInductively powered sleeve for mobile electronic deviceEP2191555A1 *Sep 17, 2008Jun 2, 2010Powerkiss OYEnergy transfer arrangement and methodWO2009037380A1Sep 17, 2008Mar 26, 2009Maija ItkonenEnergy transfer arrangement and methodWO2009142795A1 *Mar 3, 2009Nov 26, 2009Mitch RandallApparatus and method for retrofitting a broad range of mobile devices to receive wireless powerWO2011025692A1 *Aug 17, 2010Mar 3, 2011Access Business Group International LlcPhysical and virtual identification in a wireless power networkWO2013048053A1 *Sep 19, 2012Apr 4, 2013Samsung Electronics Co., Ltd.Portable terminal having wireless charging module* Cited by examinerClassifications U.S. Classification455/343.1International ClassificationH04B1/16, G06F1/26, H02J7/02, G06F1/16Cooperative ClassificationH04M1/0262, H02J7/025, G06F1/26, G06F1/1632European ClassificationG06F1/16P6, G06F1/26, H02J7/02B1Legal EventsDateCodeEventDescriptionApr 20, 2009ASAssignmentOwner name: ACCESS BUSINESS GROUP INTERNATIONAL LLC, MICHIGANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMWAY (EUROPE) LIMITED;REEL/FRAME:022562/0617Effective date: 20081230Jun 10, 2008ASAssignmentOwner name: AMWAY (EUROPE) LIMITED, ENGLANDFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SPLASHPOWER LIMITED;REEL/FRAME:021096/0768Effective date: 20080430Apr 11, 2006ASAssignmentOwner name: SPLASHPOWER LIMITED, UNITED KINGDOMFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BEART, PILGRIM G.W.;CHENG, LILY KA-LAI;WHITEWOOD, DAVID P.;AND OTHERS;REEL/FRAME:017470/0590;SIGNING DATES FROM 20050726 TO 20050830Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BEART, PILGRIM G.W.;CHENG, LILY KA-LAI;WHITEWOOD, DAVID P.;AND OTHERS;SIGNING DATES FROM 20050726 TO 20050830;REEL/FRAME:017470/0590RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google