`U500862455032
`
`O
`(12) United States Patent
`(10) Patent No.:
`US 8,624,550 32
`
`Fischer et a].
`(45) Date of Patent:
`*Jan. 7, 2014
`
`(54} MULTIFUNC'I'IONAL CHARGER SYSTEM
`tun ME'I‘HUD
`
`(56)
`
`References (filed
`US. PATENT DOCUMENTS
`
`(75)
`
`Inventors: Daniel M. Fischer. Waterloo (CA): Dan
`G. Radnt. Waterloo (CA): Michael 1:.
`[Iabichen Cambridge (CA): Quang A.
`Luong. Kitchener (CA): Jonathan T.
`“Elm“ “when“ “'A)
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`(73) Assiguoe: Blackflerry Limited. Waterloo. Ontario
`('1 A)
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`(‘A
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`2513.333
`0684680
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`92002
`[1.1995
`
`( * ) Notice:
`
`Subject to any disclaimer. the term of this
`palent is extended or adjusted under 35
`U.S.(‘. 154(b} by 0 days.
`
`This patent is subjecl to a terminal dis~
`claimer.
`
`21
`
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`(
`(22]
`
`(65]
`
`A l. N .: 131536.767
`PF
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`Filed:
`
`Jun. 28. 2012
`(Under 37 (‘FR 1.4?)
`
`Prior Publication Data
`lE 201 2 £12931 ]3 A]
`Nov. 21 2012
`
`.
`_
`Related ”'3' Application Data
`(63} Cominuatjgu o [applicafign No. 131175509! filed on
`Jul.
`1_ 201 ]_ now Pat. No_ 8.232.766. which is a
`continuation of appljcatign Ng‘ 12905334. filed on
`‘
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`[( 011110119dl
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`(5”
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`Ui’“
`(58) Field of Classification Search
`USPC
`320t107,111.114.140
`See application tile for complete search history.
`
`(20061)”
`
`320” 11
`
`(Conlinucd)
`()‘I'l—IER PUBLICATIONS
`
`(Tanadian Olfice Action for Canadian Application No. 2.3?4344
`dated Mat. 12. 2004 (3 page”
`.
`(Contained)
`
`Edward T50
`Prittmtj‘ Iit'trtttiner
`(74) Attorney: Agent. or Firm Finnegan. Henderson,
`Far’dbow. Garrett & Dunner LLP
`
`ABSTRACT
`(5.”
`An adapter l'or providing a sourcco-l‘power to a tnobile device
`through an Industry standard port IS provided. In accordance
`with one aspect oflhe invention. the adapler comprises a plug
`unit. a power converter, a primary connector. and an identifi—
`cation subsystem. The plug unit is operative to couple the
`adapter to a power sockcl and operative to receive energy
`from the power socket. The power converter is electrically
`coupled to the plug tutit and is operable to regulate the
`received energy than the power socket and to output a power
`requirement to the mobile device. The primary connector is
`y
`P
`l"L
`P
`electricall cou led to the
`iwerconverterandiso erativcto
`couple to the mobile device and to delivcrthe outputtcd power
`requirement lo the mobile device. The identification sub—
`system is electrically coupled lo the primary connectorand is
`operative to provide an identification signal.
`
`18 Claims. 4 Drawing Sheets
`
`
`
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`ZTE/SAMSUNG 1001-0001
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`US 8,624,550 32
`Page 2
`
`Related [1.8. Application Data
`_
`.
`(63) Oct. 15. 2010. now Pat. No. 7.986.127. winch [5 a
`mnlinualion of application No. 121714204. filed on
`1': b. 26. 2010‘
`Pat. N _ 7.834.586.
`1'
`1
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`c .
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`' now.
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`0
`'
`- “”1“ ‘5 a
`continuation of application No. 121268.297. filed on
`Nov. 10. 2008. now Pat. No. 7.737.657. which is 21
`continuation of application No. 111749.680. filed on
`May 16. 2007. now Pat. No. 7.453.233. which is 51
`'
`.
`'
`‘
`'
`continuation of application No. 111175.885. filed on
`.1111. 6f 21.105, flow Pal. N0. 7,239.1115 whlch 15 11
`continuation of application No. 101087.629. filed on
`Mar. 1. 2002. now Pat. No. 6.936.936.
`
`(60} Provisional application No. 601273.021. filed on Mar.
`1. 2001. provisional application No. 601330.486. filed
`on Oct. 23. 2001.
`
`(56)
`
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`F.
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`412002
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`2005063355
`3-"2005
`01101330
`1.2001
`
`[‘3
`
`EP
`JP
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`.
`'
`'
`‘
`-
`Charging Big Supereaps. P01101311. DeSIgn. p. 26. Mar. 1997.
`Electric Double-Layer Capacutors. V01. 2. 001. 25. 1996. (Japan.
`Tokm Conn-- Cat-Na 1302003-
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`Jan. 1997147pagCS).
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`“5 938°51-
`1 .5. 017101.: Action for [LS-i. App}. No. 115175.885 datedApr. 4. 2006
`(5 pages).
`1 .S.0l’ficcAction for U.S..~‘\ppl.No. [1.175.885 dated Oct. 20. 2005
`(8 page”
`. 5.011100 Action for 11.3. .*\pp1..\'o. II-"749.68(1datcd Sep.25.2007
`\5
`1 Page”
`‘
`_
`1 .S.Of‘ficc Action for 11.5. ApplNo. 121174.204 dated Aug.5. 2010
`1
`11:31:13).
`1 .8. Office Action for us. Appl. No. 123268.297 dated Aug. 18.
`20090; pages}
`-
`-
`-
`LS. Office Action for L-.S. Appl. No. 121905.934 dated Nov. 29.
`2010 (1]
`3951-
`L.S.011ioe Action for U.S.App1. No. 111175.385 dated Aug. 24.
`20051602136)-
`1.5.officcAclion torus. ApplNo. 12571420401161 Augfi. 2010
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`1 .S.0fficcActionforUS.Appl.No. 135175.487112161‘1Dec. 12. 2011
`(19128302)-
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`* cited by examiner
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`1
`MULTIFUNCTIONAL C HARGER SYSTEM
`AND METHOD
`
`CROSS-REFERENCE TO RELATED
`APPLICATIONS
`
`This is a continuation application of U .S. patent applica-
`tionSer.No.137175.509.liledJul.l. 2011.11va.S.Pat.No.
`8.232.766. issuedoitJul. 31. 2012. by Daniel M. Fischer, eta].
`and entitled “Multifunctional Charger System and Method."
`which is a continuation of U.S. patent application Ser. No.
`l 241905.934. tiled Oct. 15. 2010. now U.S. Pat. No, 7.986.127.
`issued on Jul. 26. 2011. by Daniel M. Fischer. et a]. and
`entitled “Multifunctional Charger System and Method.”
`which is a continuation of U .S. patent application Ser. No.
`13714204. filed Feb. 26. 2010 now U.S. Pat. No. 7.834.586.
`by Daniel M. Fischer. ct a1. and entitled “Multifunctional
`Charger System and Method." which is a continuation ofU.S.
`patent application Ser. No. 127268.297. tiled Nov. 10. 2008.
`now U.S. Pat. No. 7.737.657 issued on Jun. 15. 2010. by
`Daniel M. Fischer. et al. and entitled “System and Method for
`Charging a Battery in a Mobile Device." which is a continu-
`ation of U.S. patent application Ser. No. 117749.680. filed
`May 16. 2007. now U.S. Pat. No. 7.453.233 issued on Nov.
`18. 2008. by Daniel M. Fischer. et a1. and erttitled “Adapter
`System and Method for Powering :1 Device.“ which is a con-
`tinuation of U .S. patent application Ser. No. 1 1f175.885. filed
`onJul. 6. 2005. now U.S. Pat. No. 7.239.] 11 issued onJul. 3.
`2007. by Daniel M. Fischer. ct a1. and entitled “Universal
`Serial Bus Adapter for a Mobile Device.“ which is a continu-
`ation of US. patent application Ser. No. 101087.629. filed
`Mar. 1. 2002. now U.S. Pat. No. 6.936.936 issued on Aug. 30.
`2006. by Daniel M. Fischer. et al. and entitled “Multifunc-
`tional Charger System and Mctht
`.“ which claims priority
`from U.S. ProvisionalApplicationNo. 607273.021. filed Mar.
`1. 200] . by Daniel M. Fischer. et a]. and entitled "System and
`Method for Adapting a USB to Provide Power for Charging a
`Mobile Device" and U.S. Provisional Application No.
`608370.486. filed (Jet. 23. 2001. by Daniel M. Fischer. ct a1.
`and entitled “Multifunctional Charger System and Method."
`Each ol'the above patent applications is hereby incorporated
`herein by reference in its entirety ['or all purposes.
`
`BACKGROUND
`
`This invention relates generally to power adapters. More
`particularly. the invention relates to power adapters for use
`with mobile devices.
`Providing an external source of power to a mobile device.
`such as a personal digital assistant (“FDA”). mobile contour-
`nication device. cellular phone. wireless two-way e-mail
`communication device. and others. requires design consider-
`ations with respect to both the mobile device and the power
`source. With regard to the niobiledevice. most mobile-devices
`provide a distinct power interface for receiving powar from a
`power source. for instance to recharge a battery. and a sepa-
`rate data interface for communicating. For example. malty
`mobile devices presently use USB (Universal Serial Bus}
`interfaces for communicating and use a separate power inter-
`face. such as a barrel connector. for receiving power.
`It is desirable. however. to have a combined powerand data
`interface. The mobile devices that do have combined power
`and data interfaces typically use non-standard and sometimes
`proprietary interfaces. Consequently. cotnbincd interfaces for
`a particular manufacturer‘s mobile device may not be com-
`patible With combined interfaces for mobile devices provided
`by other manufacturers.
`
`ill
`
`15
`
`30
`
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`Although the USB interface cart be used as a power inter—
`face. the USB is typically not used for that purpose by mobile
`devices. In accordance with the USB specification. typical
`USB power source devices. such as hubs and hosts. require
`that a USB device participate in a host-initiated process called
`cnumeration in order to be compliant with the current USB
`specification in drawing power from the U SB 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 ltost
`would not be available. as often happens dttring normal use 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 entuneration to supply power
`to the mobile device via a USB interface.
`
`SUMMARY
`
`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 connec-
`tor. and an identification sub system. The plug ttnit is operative
`to couple the adapter to a power socket and operative to
`receive energy from the power socket. The power converter is
`electrically coupled to the plug unit and is operable to regulate
`the received energy from the power socket and to output a
`power requirement to the mobile device. The primary con-
`nector is electrically coupled to the power converter and is
`operative to couple to the mobile device and to deliver the
`outptttted power requirement to the mobile device. The iden-
`tification 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 pro-
`viding a source o |‘ power to a mobile device through a USB
`port is provided. The U SB adapter comprises a plug unit. a
`power converter. a primary USB connector. and art identiti—
`cation subsystem. The plug unit is operative to couple the
`USB adapter to a power socket and operative to receive
`energy from the power socket. The power converter is elec-
`trically 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 connec—
`tor is electrically coupled to the power converter and is opera—
`tive to couple to the mobile device and to deliver the outputted
`power requirement to the mobile device. The identification
`subsystem is electrically coupled to the primary connector
`and is operative to provide an identification signal.
`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. 3
`primary USB connector. and an auxiliary USB adapter. The
`plug ttnit is operative to couple the 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 cotutector is electrically coupled to
`the power converter and is operative to couple to the mobile
`device and to deliver the outputted power requirement to the
`mobile device. ”the auxiliary USB connector has data lines
`that are electrically coupled to the data lines ot'the primary
`USB connector.
`Yet another aspect provides a method for providing energy
`to a mobile device using a USB adapter that comprises a plug
`unit. a primary USB connector. 5: power converter electrically
`coupled between the plug unit and the primary USB connec-
`
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`3
`tor, and an identification sub sy stem 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 require-
`ment to the mobile deviCe via the power converter and the
`USB connector. and providing an identification signal to the
`mobile device. via the identification subsystem and the USB
`connector. that is operative to inform the mobile device that
`the USB adapter is not limited by the power limits imposed by
`the USB specification.
`In accordance with another aspect. a powering systcnt for a
`mobile device having a U SB connector is provided. The pow—
`eri ng system comprises a power distribution subsystem in the
`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 lbr coupling to a power socket and that
`is operable to receive energy front the power socket. a power
`converter electrically coupled to the pltlg unit for regulating
`the received energy and for providing a power requirement to
`the power distribution subsystem. and an identification sub-
`system 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.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`In order that the invention identified in the claims may be
`tnore clearly understood. preferred embodiments thereofwi ll
`be described in detail by way of example. with reference to
`the accompanying drawings. in which:
`FIG. 1 is a schematic diagram of an exemplary mobile
`device which has an industry standard interface:
`FIG. 2 is a schematic diagram ofa first embodiment ofa
`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 device; and
`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.
`
`DETAILED DESCRIPTION
`
`Exemplary Mobile Device
`
`Turning now to the drawing figures. shown in FIG. I 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
`comn‘mnication device having at least voice or data commu-
`nication capabilities. Preferably. the mobile device 10 is also
`capable ofcommunicating over the Internet. for example. via
`a radio frequency (“RF") link. Examples of types ol'devices
`that could be classified as a mobile deVice [0 include a data
`messaging device. a two-way pager. a cellular telephone with
`data messaging capabilities. a wireless lntemet appliance. a
`data communication device (with or without telephony capa-
`bilities). a personal digital assistant (“FDA"). a wireless two-
`way e-mail communication device. and others.
`The eXemplary mobile device It] comprises a microproces—
`sor 12. a communication subsystem 14. ittpult'outpul (“NO“)
`devices 16. an industry standard interface 18 which in this
`example is a USB pon. and a power subsystent 20. The
`microprocessor 12 controls the overall operation of the
`mobile device 10. The communication subsystem 14 pro-
`vides the mobile device 10 with the ability to communicate
`
`4
`wirelessly with extental devices such as other mobile devices
`and other computers. The lit) devices 16 provide the mobile
`device ll] with inputfoutput capabilities for use with a device
`user. The USB port 18 provides the mobile device It) 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 power source.
`The exemplary communication subsystem 14 comprises
`components such as a receiver 22. a transmitter 24. antenna
`elements 26 and 28. local oscillators (1.0s) 31]. and a process-
`ing module such as a digital signal processor (D8?) 32. The
`particular design of the comnnutication subsystem 14 and the
`components used therein can vary. It would be apparent to one
`o I" ordinary skill in the an to design an appropriate commu—
`nication subsystem using conventional methods and compo-
`nents to operate over a conununication 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 sub-
`system 14 designed to operate within the Mobitex'm mobile
`communication system or Data'liAC'TM mobile communica-
`tion system. whereas a mobile device 10 intended for use in
`Europe may incorporate a General Packet Radio Service
`(GPRS) communication subsystctn 14.
`Network access requirements will aISo vary depending
`upon the type ol‘nctwork 34. Forexamplc. in the Mobile’x and
`Data'l'AC networks. mobile devices II] are registered on the
`network using a unique personal identification numberor 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 sub-
`scriber identity module (not shown). commonly referred to as
`a SIM card. in order to operate on a GPRS network. Without
`a SIM card. a GPRS device will not be fully functional. Local
`or nonvnetwork communication lilnctions (if any) may be
`operable. but the mobile device II) will be unable to carry out
`any functions involving conununications over the network
`34.
`When required. afler the network registration or activation
`procedures have been completed. a mobile device 10 may
`send and receive communication signals over the network 34.
`Signals received by the receiver antenna 26 through a cont—
`munication neturork 34 are input to the receiver 22. which
`may perform such conunon receiver fiJnctions as signal
`amplification. frequency dowtt conversion. filtering. chaiuiel
`selection and the like. and in the exemplary system shown in
`FIG. 1. analog to digital conversion. Analog to digital con-
`version of a received signal allows more complex communi-
`cation functions such as demodulation and decoding to be
`perfon'ned in a [351’ 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. lrcmtcncy up conversion. tiller—
`ing, amplification and transmission over the communication
`network 34 via the transmitter antetuta 28.
`Also. in the exemplary communication subsystem 14. the
`USP 32 processes communication signals and also provides
`for receiver and transmitter control. For example. the gains
`applied to communication signals in the receiver 22 and traits-
`tnitter 24 may be adaptively controlled through automatic
`gain control algoritluns implemented in the USP 32.
`In implementing its control function. the microprocessor
`12 in the exemplary mobile device III executes an operating
`system. The operating system sofiware used by the micropro-
`cessor [2 is preferably stored in a persistent stone such as [lash
`memory 36. or alternatively ruld only memory (ROM) or
`
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`ZTE/SAMSUNG 1001-0008
`ZTE/SAMSUNG 1001-0008
`IPR2018-00110
`|PR2018-00110
`
`
`
`US 8,624,550 BZ
`
`5
`similar storage element. The microprocessor 12 may 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 predetermintxl set of applications which control basic
`device operations. including at least data and voice cotnmu—
`nication applications for example, will normally be installed
`on the mobile device 10 during manufacture. One such appli-
`cation loaded on the mobile device ll] could be a personal
`information manager (PIM) application. The PlM application
`preferably is an application for organizing and managing user
`inputted data items such as email. calendar events. voice
`mails. appointments, and task items. The PlM data items may
`be stored in the RAM 38 andfor the flash memory 36.
`The PlM application preferably has the ability to send and
`receive data items. via the wireless network 34. The l’lM data
`items are preferably seamlessly integrated. synchronized and
`updated. via the wireless network 34. with corresponding
`data items stored or associated with a host computer system
`(not shown} used by the device user. The synchronization of
`PIM data items is a process by which the PIM data items on
`the mobile device 10 and the PIM data items on the host
`computer system can be made to mirror each other.
`There are several possible mechanisms for loading appli—
`cations onto the mobile deVice It). For example. applications
`may be loaded onto the mobile device 10 through the wireless
`network 34. an auxiliary lit) subsystem 40. the serial port 18.
`a short-range communications subsystem 42. such as an
`infrared (“IR“) communication system. or any other suitable
`subsystem 44. When loading the applications onto the mobile
`device 10. the device user may install the applications in the
`RAM 38. the flash memory 36. or preferably a non-volatile
`store (not shown) sLIclt as ROM for execution by the micro—
`processor l2. The available application installation mecha—
`nisms can increase the utility of the mobile device 10 by
`providing the device user with a way of upgrading the mobile
`device It] with additional andJ'or enhanced on-device func-
`tions.
`conmiunication-related functions. or both. For
`example, a secure conununication application may be loaded
`onto the mobile device lli that allows for electronic comm
`merce functions or other financial
`transactions to be per—
`formed using the mobile device It].
`The U0 devices 16 may be used to display andforcompose
`data communication messages. in one mode of operation. a
`signal received by the mobile device 10. such as a text mes-
`sage or web page download. will be received and processed
`by the communication subsystem l4. torwarded to the micro-
`processor 12. which will preferably titrther process the
`received signal. and provide the processed signal to one or
`more of the [£0 devices 16 such as a display 46. Alternatively.
`a received signal such as a voice signal can be provided to a
`speaker 48. or alternatively to an auxiliary U0 device 40. In
`almther mode ofoperation a device user may compose a data
`item such as an e-mail message using a keyboard 50 in coop-
`eratioit with the display 46 and possibly an auxiliary “'0
`device 4|]. Alternatively. a device user may compose a voice
`message via a microphone 52. The composed data item may
`then be transmitted over a communication network 34 using
`the communication subsystem 14.
`A short—range communications subsystem 42 may be pro—
`vided in the mobile device ll) to allow the mobile device 10 to
`communicate with other systems or devices. which need not
`necessarily be similar to device It]. For example. the short-
`range communications subsystem 42 may include an in li'ared
`device and associated circuitry and components or a Blue~
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`toothTM cotmnunication module to allow the device 10 to
`communicate with similarly-enabled systems and devices.
`The USB port 18 provides the mobile device 10 with a
`serial port for linking directly with other computers to
`exchange data andJ'or to receive power. The USB port 18 also
`provides the mobile device 19 with a means for receiving
`power from an external power source. For example.
`in a
`personal digital assistant (HIM-type communication device.
`the USB port 18 could be used to allow the mobile device It!
`to synchronize data with a user‘s desktop computer (not
`shown). The USB port 18 could also enable a user to set
`parameters in the mobile device If] such as preferences
`through the use ofan external device or sollware application.
`In addition the U SB port 18 may also be used to provide a
`memts for downloading information or software to the mobile
`device ll] without using the wireless communication network
`34. The USB port 18 can provide a direct and thus reliable and
`trusted connection that may for example be used to load an
`encryption key onto the mobile device It] thereby enabling
`secure device communication.
`Coupled to the USB pon 13 is a USB connector 54. The
`USB connector 54 is the physical component that couples the
`USE port 18 to the outside world. In the exemplary mobile
`device 10. the USB cotmcctor 54 is used to transmit and
`receive data from an external datai'power source 56. receive
`power from the external datatpower source 56. direct the
`transmittedfreceived data fronu‘to the USB pon 18. and direct
`the received power to the power subsystem 20.
`The exemplary power subsystem 20 comprises a charging.
`and power distribution subsystem 58 and a battery 60. The
`charging and power distribution subsystem 58 pertbmts
`many functions.
`it may be used to transfer energy to the
`battery 60 front the external datatpower source 56 to charge
`the battery 60 altd also to distribute power to the many power-
`rcquiring components within the mobile device It}. The
`charging subsystem 58 may be capable of determining the
`presence ofa battery 6tl andfor a power circuit coupled to the
`mobile device 10. such as an AC adapter. USB connection. or
`car adapter. which alternatively can act as power sou recs 56 to
`provide power for the mobile device Ill and to charge the
`battery 60. Additionally. the charging subsystem 58 may have
`the ability to determine if a power source 56 is coupled to the
`mobile device I I] and. in the absenceof such a coupling. cause
`the mobile device It] to be powered by the battery 60.
`The power distributed by the charging and power distribu-
`tion subsystem 58 may be derived from energy stored in the
`battery on auditor energy received from the external data!
`power source 56. When the battery 60 is depleted. the charg—
`ing and power distribution subsystem 58 transfers energy
`front die power source 56 to recharge the battery 60. Option-
`ally. the charging and power distribution subsystem 53 may
`also transfer energy from the power source 56 to other com-
`ponents in the mobile device it) to power the mobile device 10
`when the battery 60 has been depleted and is recharging.
`when the data!power source 56 is not connected to the mobile
`device 10, power for the device It] is derived trot-n the battery
`60.
`
`Exemplary USB Adapter
`
`FIG. 2 is a schematic diagram of a first embodiment of an
`adapter 100 that can be used to couple the mobile device 10 ot‘
`FIG. 1 to the datal'powcr source 56 of FIG. 1. in this example
`the adapter 100 is a USB adapter 1th that comprises a primary
`USB cosmector 102. a power converter 104. a plug unit 106.
`and an identification subsystem 108. The power converter is a
`known element in the art and typically includes at least one of
`
`ZTE/SAMSUNG 1001-0009
`ZTE/SAMSUNG 1001-0009
`IPR2018-00110
`|PR201 8-001 10
`
`
`
`US 8,624,550 BZ
`
`7
`the fol lowing components: switching converter. transformer,
`DC source. voltage regulator. linear regulator and rectifier. In
`the embodiment shown in FIG. 2. the USB adapter 100 is
`shown coupling a mobile device 10 to one of one or more
`types of power sockets 110N. 110D. 110B. and 110. Also
`shown in FIG. 2 is an optional auxiliary USB connector 112
`that can be used to couple the mobile deVicc 10 to a data
`source (not shown) such as a personal computer.
`In the embodiment shown in 1:10. 2. the primary USB
`connector 102 is configured to mate with the USB connector
`54 ot‘thc mobile device 10. The USB adapter 100 is operable
`to provide power to the mobile device 10 tlu-ough the Vbus
`and God power pins in the USB connectors 54 and 102. The
`USB adapter 100 also optionally provides a communication
`path for data across the l.)+ and 0— data pins in the USB
`connectors 54 and 102.
`The plug unit 106 is preferably a conventional plug unit
`that can be used to couple with a conventional power socket to
`receive power thereli'om. For exalnple. the plug unit 106 can
`be a two-prong or three-prong plug of the type used in North
`America that can couple to a Nonh American AC power
`socket llllN that provides 115 VAC. to the etubodiment
`shown in FIG. 2. the plug unit 106 can