PTO/SB/05 (09-04)
`Approved for use through 07/31/2006. OMB 0651-0032
`U.S. Patent and Trademark Office. U.S. DEPARTMENT OF COMMERCE
`Under the Paoerwork Reduction Act of 1995 no oersons are renuired to resoond to a collection of information unless it disnlavs a valid OMB control number.
`555255012844
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`UTILITY
`PATENT APPLICATION
`TRANSMITTAL
`(Only for new nonprovisional applications under 37 CFR 1.53(b))
`
`Attorney Docket No.
`
`First Inventor
`
`Daniel M. Fischer
`
`Title
`Express Mail Label No. EV 302225424 US
`
`APPLICATION ELEMENTS
`See MPEP chapter 600 concerning utility patent application contents.
`
`ADDRESS TO:
`
`Commissioner for Patents
`P.O. Box 1450
`Alexandria VA 22313-1450
`
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`2.0
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`1.0 Fee Transmittal Form (e.g., PTO/SB/17)
`(Submit an original and a duplicate for fee processing)
`Applicant claims small entity status.
`See 37 CFR 1.27.
`[Total Pages
`26
`3.0 Specification
`Both the claims and abstract must start on a new page
`(For information on the preferred arrangement, see MPEP 608.01 (a))
`[Total Sheets
`4.0 Drawing(s) (35 U.S.C. 113)
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`5.
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`Oath or Declaration
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`b.
`
`A copy from a prior application (37 CFR 1.63(d))
`
`[Total Sheets
`
`3
`
`B Newly executed (original or copy)
`0or continuation/divisional with Box 18 completed)
`
`i.
`
`DELETION OF INVENTOR(S)
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`name in the prior application, see 37 CFR
`1.63(d)(2) and 1.33(b).
`
`6.0 Application Data Sheet. See 37 CFR 1.76
`
`7.0 CD-ROM or CD·R in duplicate, large table or
`'C5puter Program (Appendix)
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`c.ob. ~·~--c""$,i:iecification.Seguence.Listin9"'gn:
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`
`I
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`ACCOMPANYING APPLICATION PARTS
`
`9. 0
`
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`
`Name of Assignee· Research In Motion Limited
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`10. 0 37 CFR 3.73(b) Statement
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`
`11. 0
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`
`. 12. [2J lnfof2ftlon Disclosure Statement (PTO/SB/OB or PT0-1449)
`Copies of citations attached
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`13. 0 Preliminary Amendment
`
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`14. [Z] Return Receipt Postcard (MPEP 503)
`(Should be specifically itemized)
`15. O Certified Copy of Priority Document(s)
`(if foreign priority is claimed)
`16. O Nonpublication Request under 35 U.S.C. 122(b)(2)(B)(i).
`·"·- ~Kpplicant•most•attach•form'P"'Jl®/SB/35,or~equivalenb~-
`17. IZJ Other: Co[;!}! of Worldwide Assignment (6 12gs)
`to com(;!lete Item 10 above
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`CD-ROM or CD-R (2 copies); or
`Paper
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`c.
`18. If a CONTINUING APPLICATION, check appropriate box, and supply the requis11e information below and in the first sentence of the
`specification following the title, or in an Application Data Sheet under 37 CFR 1. 76:
`0 Continuation
`Prior application information:
`
`0
`
`Divisional
`Examiner Edwim;j I:! I:;;Q
`
`0
`
`Continuation-in-part (CIP)
`
`of prior application No.: 10/087,629 filed 03101/2002*'
`
`Art Unit: 2fl~fl
`
`19. CORRESPONDENCE ADDRESS
`
`[ { ] The address associated with Customer Number: I
`/l
`I I
`I
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`- . / '
`I
`~
`JosepH"M. Sauer
`
`Name
`
`Address
`
`City
`Country
`
`Signature
`
`Name
`IPrint/Tvoel
`
`-
`
`--
`
`33070
`
`I OR D Correspondence address below
`
`I State
`I Telephone
`
`I Date
`
`Zip Code
`Fax
`
`J
`;/(/~
`Reg'islratlon No. I
`<Attornev/Aaent\ 47·919
`
`This collection of information is req ired by 37 CFR 1.53(b). The information is required to obtain or retain a benefit by the public which is to file (and by the
`USPTO to process) an application. onfidentiality is governed by 35 U.S.C. 122 and 37 CFR 1.11 and 1.14. This collection is estimated to take 12 minutes to
`, a~d submitting the .completed application .form to the USPTO: Time will vary depending upon th~ individual case .. Any
`complete, including gathering., prepari
`comments on the amount of time you require to complete this form and/or suggestions for reducing this burden, should be sent to the Chief Information Officer.
`U.S. Patent and Trademark Office, U.S. Department of Commerce, P.O. Box 1450, Alexandria, VA 22313-1450. DO NOT SEND FEES OR COMPLETED
`FORMS TO THIS ADDRESS. SEND TO: Commissioner for Patents, P.O. Box 1450, Alexandria, VA 22313-1450.
`If you need assistance in completing the form, call 1·800-PT0-9199 and select option 2.
`**which claimed US 60/273,021 filed 03/01 /2001 and US 60/330,486 filed 10/23/2001.
`
`ZTE/SAMSUNG 1002-0001
`IPR2018-00276
`
`

`

`PTO/SB/17 (12-04v2)
`Approved for use through 07131/2006. OMB 0651-0032
`U.S. Patent and Trademarll Office: U.S. DEPARTMENT OF COMMERCE
`..
`...
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`Effective on 12/0812004.
`Fees pursuant to the Consolidated Aopropriations Act. 2005 (H.R. 4818).
`
`"""
`
`.J
`
`r
`
`FEE ·TRANSMITTAL Application Number
`For FY 2005
`0 Applicant claims small entity status. See 37 CFR 1.27
`\..TOTAL AMOUNT OF PAYMENT I($)
`1000
`
`Filing Date
`First Named Inventor Daniel M. Fischer
`Examiner Name
`Art Unit
`Attorney Docket No.
`
`555255012844
`
`METHOD OF PAYMENT (check all that apply)
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`[{:]charge fee(s) indicated below
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`under 37 CFR 1.16 and 1. 17
`WARNING: lnfonnation on this form may become public. Credit card Information should not be included on this form. Provide credit card
`l.nformatlon and authorization on PT0-2038.
`FEE CALCULATION
`1. BASIC FILING, SEARCH, AND EXAMINATION FEES
`FILING FEES
`EXAMINATION FEES
`SEARCH FEES
`Small Entitll
`Small Entitll
`Small Entitll
`A1u1lication Tl£12e ~ ~ ~ ~ ~ lliJil
`Utility
`300
`200
`150
`500
`250
`100
`.Design
`200
`100
`100
`130
`50
`65
`Plant
`200
`JOO
`300
`J60
`150
`80
`Reissue
`300
`150
`500
`600
`250
`300
`Provisional
`200
`0
`JOO
`0
`0
`0
`2. EXCESS CLAIM FEES
`-- Fe'e'Descrl12t10n= "'"''~
`Each claim over 20 (including Reissues)
`Each independent claim over 3 (including Reissues)
`Multiple dependent claims
`.w..w
`Extra Claims
`Total Claims
`rn
`Q
`x
`SQ
`- 20 or HP
`HP = highest number of total claims paid for, if greater than 20.
`.w..w
`lnde12. Claims
`Extra Claims
`=
`x
`2QQ
`3
`• 3 or HP =
`0
`HP = highest number of independent claims paid for, if greater than 3.
`3. APPLICATION SIZE FEE
`If the specification and drawings exceed JOO sheets of paper (excluding electronically filed sequence or computer
`listings under 37 CFR l.52(e)), the application size fee due is $250 ($125 for small entity) for each additional 50
`sheets or fraction thereof. See 35 U.S.C. 4J~)(l)(G) and 37 CFR l.16~s).
`Num er of each additional 50 or raction thereof ~ Fee Paid !il
`Total Sheets
`. Extra Sheets
`150 =
`(round up to a whole number) x
`Q
`' Q
`30
`250
`0
`=
`- 100
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`""'
`
`Fee Paid($)
`QQQ
`
`=
`
`Fee Paid 1$!
`QQQ
`
`Fees Paid 1$!
`1QQQ
`
`Small Entit)l
`Eee./$l.
`c;f.ee•ISl""'
`25
`50
`100
`200
`180
`360
`Multi12le De12endent Claims
`Fee Paid 1$!
`WJ!l
`360
`0
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`4, OTHER FEE(S) :t
`
`$ 130 fee (no small entity discount)
`tion
`Non-English Specifi
`Other (e.g., late filin surn h<>r~P ,.
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`Fees Paid {il
`0
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`I
`SUBMITTED BY
`-
`/ ~
`Telephone f 16¥i86-7506
`Signature
`Date 7/(/(
`Name (PrinUType) Josepti'1( , Sauer
`.r
`I
`This collection of information 1s required by 37 CFR 1.136. The information 1s required to obtain or retain a benefit by the public which 1s to file (and by the
`USPTO to process) an application. Confidentiality is governed by 35 U.S.C. 122 and 37 CFR 1.14. This collection is estimated to take 30 minutes to complete,
`including gathering, preparing, and submitting the completed application form to the US PTO. Time will vary depending upon the individual case. Any comments
`on the amount of time you require to complete this form and/or suggestions for reducing this burden, should be sent to the Chief Information Officer, U.S. Patent
`and Trademark Office, U.S. Department of Commerce, P.O. Box 1450, Alexandria, VA 22313-1450. DO NOT SEND FEES OR COMPLETED FORMS TO THIS
`ADDRESS. SEND TO: Commissioner for Patents, P.O. Box 1450, Alexandria, VA 22313-1450.
`If you need assistance in completing the form, call 1-800-PT0-9199 and select option 2.
`
`I Registration No. 47 919
`
`IAttomev/Aaentl
`
`•
`
`ZTE/SAMSUNG 1002-0002
`IPR2018-00276
`
`

`

`EV302225424USl
`
`Multifunctional Charger System and Method
`
`CROSS-REFERENCE TO RELATED APP LI CA TIO NS
`
`This application is a continuation United States Patent Application No. 10/087,629,
`
`5
`
`entitled "Multifunctional Charger System and Method," which was filed on March 1, 2002.
`
`United States Patent Application No. 10/087, 629 claims priority from and is related to United
`
`States Provisional Application No. 60/273,021, entitled "System and Method for Adapting a
`
`USB to Provide Power for Charging a Mobile Device," which was filed on March 1, 2001, and
`
`United States Provisional Application No. 60/330,486, entitled "Multifunctional Charger System
`
`10
`
`and Method'', which was filed on October 23, 2001. The entirety of these prior applications are
`
`hereby incorporated into the present application by reference.
`
`1.
`
`Field of the Invention
`
`BACKGROUND
`
`15
`
`This invention relates generally to power adapters. More particularly, the invention
`
`relates to power adapters for use with mobile devices.
`
`2.
`
`Description of the Related Art
`
`Providing an external source of power to a mobile device, such as a personal digital
`
`20
`
`assistants ("PDA"), mobile communication device, cellular phone, wireless two-way e-mail
`
`communication device, and others, requires design considerations with respect to both the mobile
`
`device and the power source. With regard to the mobile device, most mobile devices provide a
`
`distinct power interface for receiving power from a power source, for instance to recharge a
`
`battery, and a separate data interface for communicating. For example, many mobile devices
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`presently use USB (Universal Serial Bus) interfaces for communicating and use a separate power
`
`interface, such as a barrel connector, for receiving power.
`
`It is desirable, however, to have a combined power and data interface. The mobile
`
`devices that do have combined power and data interfaces typically use non-standard and
`
`5
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`sometimes proprietary interfaces. Consequently, combined interfaces for a particular
`
`manufacturer's mobile device may not be compatible with combined interfaces for mobile
`
`devices provided by other manufacturers.
`
`Although the USB interface can be used as a power interface, the USB is typically not
`
`used for that purpose by mobile devices. In accordance with the USB specification, typical USB
`
`10
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`power source devices, such as hubs and hosts, require that a USB device participate in a host(cid:173)
`
`initiated process called enumeration in order to be compliant with the current USB specification
`
`in drawing power from the USB interface. Although a mobile device could be adapted to
`
`participate in enumeration when drawing power over the USB interface, it would be preferable in
`
`many situations, such as when a host would not be available, as often happens during normal use
`
`15
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`of a mobile device, to be able to utilize alternate power sources such as conventional AC outlets
`
`and DC car sockets that are not capable of participating in enumeration to supply power to the
`
`mobile device via a USB interface.
`
`SUMMARY
`
`20
`
`An adapter for providing a source of power to a mobile device through an industry
`
`standard port is provided. In accordance with one aspect of the invention, the adapter comprises
`
`a plug unit, a power converter, a primary connector, and an identification subsystem. The plug
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`unit is operative to couple the adapter to a power socket and operative to receive energy from the
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`power socket. The power converter is electrically coupled to the plug unit and is operable to
`
`regulate the received energy from the power socket and to output a power requirement to the
`
`mobile device. The primary connector is electrically coupled to the power converter and is
`
`operative to couple to the mobile device and to deliver the outputted power requirement to the
`
`5 mobile device. The identification subsystem is electrically coupled to the primary connector and
`
`is operative to provide an identification signal.
`
`In accordance with another aspect, a USB adapter for providing a source of power to a
`
`mobile device through a USB port is provided. The USB adapter comprises a plug unit, a power
`
`converter, a primary USB connector, and an identification subsystem. The plug unit is operative
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`10
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`to couple the USB adapter to a power socket and operative to receive energy from the power
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`socket. The power converter is electrically coupled to the plug unit and is operable to regulate
`
`the received energy from the power socket and to output a power requirement to the mobile
`
`device. The primary USB connector is electrically coupled to the power converter and is
`
`operative to couple to the mobile device and to deliver the outputted power requirement to the
`
`15 mobile device. The identification subsystem is electrically coupled to the primary connector and
`
`is operative to provide an identification signal.
`
`Another aspect provides a USB adapter for providing a source of power to a mobile
`
`device through a USB port. The USB adapter comprises a plug unit, a power converter, a
`
`primary USB connector, and an auxiliary USB adapter. The plug unit is operative to couple the
`
`20 USB adapter to a power socket and operative to receive energy from the power socket. The
`
`power converter is electrically coupled to the plug unit and is operable to regulate the received
`
`energy from the power socket and to output a power requirement to the mobile device. The
`
`primary USB connector is electrically coupled to the power converter and is operative to couple
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`to the mobile device and to deliver the outputted power requirement to the mobile device. The
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`auxiliary USB connector has data lines that are electrically coupled to the data lines of the
`
`primary USB connector.
`
`Yet another aspect provides a method for providing energy to a mobile device using a
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`5 USB adapter that comprises a plug unit, a primary USB connector, a power converter electrically
`
`coupled between the plug unit and the primary USB connector, and an identification subsystem
`
`electrically coupled to the primary USB connector. The method comprising the steps of
`
`coupling the USB connector to the mobile device, coupling the plug unit to a power socket,
`
`outputting a power requirement to the mobile device via the power converter and the USB
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`10
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`connector, and providing an identification signal to the mobile device, via the identification
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`subsystem and the USB connector, that is operative to inform the mobile device that the USB
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`adapter is not limited by the power limits imposed by the USB specification.
`
`In accordance with another aspect, a powering system for a mobile device having a USB
`
`connector is provided. The powering system comprises a power distribution subsystem in the
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`15 mobile device that is operable to receive energy through the USB connector and to distribute the
`
`energy to at least one component in the mobile device and a USB adapter that is operative to
`
`couple to the USB connector.. The USB adapter comprises a plug unit for coupling to a power
`
`socket and that is operable to receive energy from the power socket, a power converter
`
`electrically coupled to the plug unit for regulating the received energy and for providing a power
`
`20
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`requirement to the power distribution subsystem, and an identification subsystem that is operable
`
`to transmit an identification signal that is operative to identify the USB adapter as not being
`
`limited by the power limits imposed by the USB specification.
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`BRIEF DESCRIPTION OF THE DRAWINGS
`
`In order that the invention identified in the claims may be more clearly understood,
`
`preferred embodiments thereof will be described in detail by way of example, with reference to
`
`the accompanying drawings, in which:
`
`5
`
`Fig. 1 is a schematic diagram of an exemplary mobile device which has an industry
`
`standard interface;
`
`Fig. 2 is a schematic diagram of a first embodiment of a USB adapter that is coupled to
`
`an exemplary mobile device;
`
`Fig. 3 is a flow chart illustrating an exemplary use of a USB adapter with a mobile
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`10
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`device; and
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`Fig. 4 is a schematic diagram of an additional exemplary embodiment of a USB adapter
`
`that is coupled to both an exemplary mobile device and an external battery.
`
`15
`
`Exemplary Mobile Device
`
`DETAILED DESCRIPTION
`
`Turning now to the drawing figures, shown in Fig. 1 is a schematic diagram of an
`
`exemplary mobile communication device 10 which has an industry standard interface. The
`
`mobile communication device 10 is preferably a two-way communication device having at least
`
`voice or data communication capabilities. Preferably, the mobile device 10 is also capable of
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`20
`
`communicating over the Internet, for example, via a radio frequency ("RF") link. Examples of
`
`types of devices that could be classified as a mobile device 10 include a data messaging device, a
`
`two-way pager, a cellular telephone with data messaging capabilities, a wireless Internet
`
`appliance, a data communication device (with or without telephony capabilities), a personal
`
`digital assistants ("PDA"), a wireless two-way e-mail communication device, and others.
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`The exemplary mobile device 10 comprises a microprocessor 12, a communication
`
`subsystem 14, input/output ("1/0") devices 16, an industry standard interface 18 which in this
`
`example is a USB port, and a power subsystem 20. The microprocessor 12 controls the overall
`
`operation of the mobile device 10. The communication subsystem 14 provides the mobile device
`
`5
`
`10 with the ability to communicate wirelessly with external devices such as other mobile devices
`
`and other computers. The I/O devices 16 provide the mobile device 10 with input/output
`
`capabilities for use with a device user. The USB port 18 provides the mobile device 10 with a
`
`serial port for linking directly with other computers and/or a means for receiving power from an
`
`external power source. The power subsystem 20 provides the mobile device 10 with a local
`
`10
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`power source.
`
`The exemplary communication subsystem 14 comprises components such as a receiver
`
`22, a transmitter 24, antenna elements 26 and 28, local oscillators (LOs) 30, and a processing
`
`module such as a digital signal processor (DSP) 32. The particular design of the communication
`
`subsystem 14 and the components used therein can vary. It would be apparent to one of ordinary
`
`15
`
`skill in the art to design an appropriate communication subsystem using conventional methods
`
`and components to operate over a communication network 34 based on the parameters necessary
`
`to operate over that communication network. For example, a mobile device 10 geographically
`
`located in North America may include a communication subsystem 14 designed to operate
`
`within the Mobitex™ mobile communication system or Data TAC™ mobile communication
`
`20
`
`system, whereas a mobile device 10 intended for use in Europe may incorporate a General
`
`Packet Radio Service (GPRS) communication subsystem 14.
`
`Network access requirements will also vary depending upon the type of network 34. For
`
`example, in the Mobitex and DataTAC networks, mobile devices 10 are registered on the
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`network using a unique personal identification number or PIN associated with each device. In
`
`GPRS networks however, network access is associated with a subscriber or user of a mobile
`
`device 10. A GPRS device therefore requires a subscriber identity module (not shown),
`
`commonly referred to as a SIM card, in order to operate on a GPRS network. Without a SIM
`
`5
`
`card, a GPRS device will not be fully functional. Local or non-network communication functions
`
`(if any) may be operable, but the mobile device 10 will be unable to carry out any functions
`
`involving communications over the network 34.
`
`When required, after the network registration or activation procedures have been
`
`completed, a mobile device 10 may send and receive communication signals over the network
`
`10
`
`34. Signals received by the receiver antenna 26 through a communication network 34 are input
`
`to the receiver 22, which may perform such common receiver functions as signal amplification,
`
`frequency down conversion, filtering, channel selection and the like, and in the exemplary
`
`system shown in Fig. 1, analog to digital conversion. Analog to digital conversion of a received
`
`signal allows more complex communication functions such as demodulation and decoding to be
`
`15
`
`performed in a DSP 32. Similarly, signals to be transmitted are processed, including modulation
`
`and encoding for example, by the DSP 32 and input to the transmitter 24 for digital to analog
`
`conversion, frequency up conversion, filtering, amplification and transmission over the
`
`communication network 34 via the transmitter antenna 28.
`
`Also, in the exemplary communication subsystem 14, the DSP 32 processes
`
`20
`
`communication signals and also provides for receiver and transmitter control. For example, the
`
`gains applied to communication signals in the receiver 22 and transmitter 24 may be adaptively
`
`controlled through automatic gain control algorithms implemented in the DSP 32.
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`In implementing its control function, the microprocessor 12 in the exemplary mobile
`
`device 10 executes an operating system. The operating system software used by the
`
`microprocessor 12 is preferably stored in a persistent store such as flash memory 36, or
`
`alternatively read only memory (ROM) or similar storage element. The microprocessor 12 may
`
`5
`
`also enable the execution of specific device applications, which preferably are also stored in a
`
`. persistent store. The operating system, specific device applications, or parts thereof, may also be
`
`temporarily loaded into a volatile store such as in RAM 38.
`
`A predetermined set of applications which control basic device operations, including at
`
`least data and voice communication applications for example, will normally be installed on the
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`10 mobile device 10 during manufacture. One such application loaded on the mobile device 10
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`could be a personal information manager (PIM) application. The PIM application preferably is
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`an application for organizing and managing user inputted data items such as e-mail, calendar
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`events, voice mails, appointments, and task items. The PIM data items may be stored in the
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`RAM 38 and/or the flash memory 36.
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`The PIM application preferably has the ability to send and receive data items, via the
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`wireless network 34. The PIM data items are preferably seamlessly integrated, synchronized and
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`updated, via the wireless network 34, with corresponding data items stored or associated with a
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`host computer system (not shown) used by the device user. The synchronization of PIM data
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`items is a process by which the PIM data items on the mobile device 10 and the PIM data items
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`on the host computer system can be made to mirror each other.
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`There are several possible mechanisms for loading applications onto the mobile device
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`10. For example, applications may be loaded onto the mobile device 10 through the wireless
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`network 34, an auxiliary I/O subsystem 40, the serial port 18, a short-range communications
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`IPR2018-00276
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`subsystem 42, such as an infrared ("IR") communication system, or any other suitable subsystem
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`44. When loading the applications onto the mobile device 10, the device user may install the
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`applications in the RAM 38, the flash memory 36, or preferably a non-volatile store (not shown)
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`such as ROM for execution by the microprocessor 12. The available application installation
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`5 mechanisms can increase the utility of the mobile device 10 by providing the device user with a
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`way of upgrading the mobile device 10 with additional and/or enhanced on-device functions,
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`communication-related functions, or both. For example, a secure communication application
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`may be loaded onto the mobile device 10 that allows for electronic commerce functions or other
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`financial transactions to be performed using the mobile device 10.
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`The 110 devices 16 may be used to display and/or compose data communication
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`messages. In one mode of operation, a signal received by the mobile device 10, such as a text
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`message or web page download, will be received and processed by the communication
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`subsystem 14, forwarded to the microprocessor 12, which will preferably further process the
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`received signal, and provide the processed signal to one or more of the 110 devices 16 such as a
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`display 46. Alternatively, a received signal such as a voice signal can be provided to a speaker
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`48, or alternatively to an auxiliary 110 device 40.
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`In another mode of operation a device user
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`may compose a data item such as an e-mail message using a keyboard 50 in cooperation with the
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`display 46 and possibly an auxiliary 110 device 40. Alternatively, a device user may compose a
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`voice message via a microphone 52. The composed data item may then be transmitted over a
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`communication network 34 using the communication subsystem 14.
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`A short-range communications subsystem 42 may be provided in the mobile device 10 to
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`allow the mobile device 10 to communicate with other systems or devices, which need not
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`necessarily be similar to device 10. For example, the short-range communications subsystem 42
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`may include an infrared device and associated circuitry and components or a Bluetooth™
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`communication module to allow the device 10 to communicate with similarly-enabled systems
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`and devices.
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`The USB port 18 provides the mobile device 10 with a serial port for linking directly with
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`other computers to exchange data and/or to receive power. The USB port 18 also provides the
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`mobile device 10 with a means for receiving power from an external power source. For
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`example, in a personal digital assistant (PDA)-type communication device, the USB port 18
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`could be used to allow the mobile device 10 to synchronize data with a user's desktop computer
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`(not shown). The USB port 18 could also enable a user to set parameters in the mobile device 10
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`10
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`such as preferences through the use of an external device or software application. In addition the
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`USB port 18 may also be used to provide a means for downloading information or software to
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`the mobile device 10 without using the wireless communication network 34. The USB port 18
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`can provide a direct and thus reliable and trusted connection that may for example be used to
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`load an encryption key onto the mobile device 10 thereby enabling secure device
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`communication.
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`Coupled to the USB port 18 is a USB connector 54. The USB connector 54 is the
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`physical component that couples the USB port to the outside world. In the exemplary mobile
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`device 10, the USB connector 54 is used to transmit and receive data from an external
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`data/power source 56, receive power from the external data/power source 56, direct the
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`transmitted/received data from/to the USB port 18, and direct the received power to the power
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`subsystem 20.
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`The exemplary power subsystem 20 comprises a charging and power distribution
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`subsystem 58 and a battery 60. The charging and power distribution subsystem 58 performs
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`many functions. It may be used to transfer energy to the battery 60 from the external data/power
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`source 56 to charge the battery 60 and also to distribute power to the many power requiring
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`components within the mobile device 10. The charging subsystem 58 may be capable of
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`determining the presence of a battery 60 and/or a power circuit coupled to the mobile device 10,
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`such as an AC adapter, USB connection, or car adapter, which alternatively can act as power
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`sources 56 to provide power for the mobile device 10 and to charge the battery 60. Additionally,
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`the charging subsystem 58 may have the ability to determine if a power source 56 is coupled to
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`the mobile device 10 and, in the absence of such a coupling, cause the mobile device 10 to be
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`powered by the battery 60.
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`The power distributed by the charging and power distribution subsystem 58 may be
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`derived from energy stored in the battery 60 and/or energy received from the external data/power
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`source 56. When the battery 60 is depleted, the charging and power distribution subsystem 58
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`transfers energy from the power source 56 to recharge the battery 60. Optionally, the charging
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`and power distribution subsystem 58 may also transfer energy from the power source 56 to other
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`components in the mobile device 10 to power the mobile device 10 when the battery 60 has been
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`depleted and is recharging. When the data/power source 56 is not connected to the mobile
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`device 10, power for the device 10 is derived from the battery 60.
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`Exemplary USB Adapter
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`Fig. 2 is a schematic diagram of a first embodiment of an adapter 100 that can be used to
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`couple the mobile device 10 of fig. 1 to the data/power source 56 of fig. 1. In this example the
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`adapter 100 is a USB adapter 100 that comprises a primary USB connector 102, a power
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`converter 104, a plug unit 106, and an identification subsystem 108. The power converter is a
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`known element in the art and typically includes at least one of the following components:
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`switching converter, transformer, DC source, voltage regulator, linear regulator and rectifier. In
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`the embodiment shown in fig. 2, the USB adapter 100 is shown coupling a mobile device 10 to
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`one of one or more types of power sockets 110N, 110D, 110B, and 100. Also shown in fig. 2 is
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`an optional auxiliary USB connector 112 that can be used to couple the mobile device 10 to a
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`data source (not shown) such as a personal computer.
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`In the embodiment shown in fig. 2, the primary USB connector 102 is configured to mate
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`with the USB connector 54 of the mobile device 10. The USB adapter 100 is operable to
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`provide power to the mobile device 10 through the Vbus and Gnd power pins in the USB
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`connectors 54 and 102. The USB adapter 100 also optionally provides a communication path
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`for data across the D+ and D- data pins in the USB connectors 54 and 102.
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`The plug unit 106 is preferably a conventional plug unit that can be used to couple with a
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`conventional power socket to receive power therefrom. For example, the plug unit 106 can be a
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`two prong or three prong plug of the type used in North America that can couple to a North
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`American AC power socket 11 ON that provides 115 V AC. In the embodiment shown in figure 2,
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`the plug unit 106 can accept one or more types of plug adapters 114N, 114B, 114D, and 114 that
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`are configured to couple to the plug unit 106 and are further configured to directly mate with one
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`or more types of power sockets 110N, 110D, 110B, and 100. The plug unit 106 can be
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`configured to receive energy from a power socket 110N, 110D, 110B, or 100, either directly or
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`through the use of a plug adapter, and is operati