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`
`US008624550B2
`
`c12) United States Patent
`Fischer et al.
`
`(IO) Patent No.:
`(45) Date of Patent:
`
`US 8,624,550 8 2
`*Jan. 7, 2014
`
`(54) MULTIFUNCTIONAL CHARGER SYSTEM
`AND METHOD
`
`(56)
`
`References C ited
`
`U.S. PATENT DOCUMENTS
`
`(75)
`
`lnveutors: Daniel M. Fischer, Waterloo (CA); Dan
`G . Radu t, Waterloo (CA); Mich ael F.
`Habicher, Cambridge (CA): Quang A.
`Luong, Kitcbeuer (CA): Jonathan T.
`Malton, Kitchener (CA)
`
`(73) Assignee: BlackBer r y Limited, Waterloo, Ontario
`(CA)
`
`CA
`EP
`
`3,775,659 A
`4.433,251 A
`
`11/ 1973 Carlsen, U
`2/1984 Banks et al.
`(Continued)
`
`FOREIGN PATENT DOCUMENTS
`
`912002
`2517333
`0684680
`11/1995
`(Continued)
`
`OTHER PUBLICATJONS
`
`( *) Notice:
`
`Subject to any disclaimer, the term oft:bis
`patent is extended or adjusted under 35
`U .S.C. l 54(b) by 0 days.
`
`This patent is subject to a terminal dis(cid:173)
`claimer.
`
`(21) Appl. No.: 13/536,767
`
`(22) Filed:
`
`Jun.28,2012
`(Under 3 7 CFR 1.47)
`
`(65)
`
`Prior P ublication Data
`
`US 2012/0293113 Al
`
`Nov. 22, 2012
`
`Related U.S. Application Data
`
`(63)
`
`Continuation of application No. 13/175,509. filed on
`Jul. 1, 2011 , now Pat. No. 8,232,766, which is a
`continuation of application No. 12/905,934, filed on
`
`(Continued)
`
`(51)
`
`(52)
`
`(58)
`
`(2006.01)
`
`Int. Cl.
`HOJM 10146
`U.S. CI.
`USPC .......................................................... 320/111
`F ield of C lassification Search
`USPC .................................. 320/ 107, I 11. l 14, 140
`See application file for complete search history.
`
`Canadian Office Action for Canadian Application No. 2,374,344
`dated Mar. 12, 2004 (3 pages).
`
`(Continued)
`
`Primary Examiner - Edward Tso
`(74) Allorney, Agent, or Firm - Fi1rnegan, [-]enderson,
`Farabow, Garrett & Dunner LLP
`
`ABSTRACT
`(57)
`An adapter for providing a source of powerto a mobile device
`through an industry standard port is provided. Jn accordance
`with one aspect o ft he invention, the adapter comprises a plug
`unit. a power converter. a primary connector. and an identifi(cid:173)
`cation subsystem. The plug unit is operative to couple the
`adap ter 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 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 mobile device. -n1e identification sub(cid:173)
`system is electrically coupled to tbe primary counector and is
`operative to provide an identification signal.
`
`18 Cla im s, 4 Drawing Sheets
`
`ZTE/SAMSUNG 1001-0001
`IPR2018-00111
`
`

`

`US 8,624,550 B2
`Page2
`
`Related U.S. Application Data
`
`(63)
`
`Ocl. 15, 20 10, now Pat. No. 7,986, 127, which is a
`continuation of applicatio11 No. 12/714,204, fi led on
`Feb. 26, 2010, now Pat. No. 7.834,586, which is a
`continuation of application No. 12/268,297, filed on
`Nov. 10. 2008, now Pal. No. 7,737,657, which is a
`continuation of application No. I 1/749,680, filed on
`May 16. 2007, now Pat. No. 7.453,233, which is a
`continuation of application No. 11/175,885, filed on
`Jul. 6. 2005, now Pat. No. 7,239,1l1 , whicb is a
`continuation of application No. 10/087,629. filed on
`Mar. 1, 2002, now Pat. No. 6,936,936.
`(60) Provisional application No. 60/273,021. filed on Mar.
`l. 2001 , provisional application No. 60/330.486. filed
`on Oct. 23, 2001.
`
`(56)
`
`References C ited
`
`U.S. PATENT DOCUMENTS
`
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`5,173,855 A
`5,229,649 A
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`6,283,789 B l
`6,357,0 11 82
`6,397,696 J32
`6,663,420 Bl
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`6,738,856 BI
`7.159,132 B2
`7,170,259 B2
`7,340,627 Bl
`7,629.767 82
`7,631,1 11 B2
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`7,737,657 B2
`7 .8 12.565 B2
`
`4/ 1985 Winkler
`121 1992 Nielsen et al.
`7/1993 Nielsen et al.
`12/ 1993 Eaton et al.
`8/ 1995 Rogers
`511997 Cioffi
`6/ 1997 Aldous
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`1212003 Xiao
`12/2003 Doughert y et al.
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`
`7,834,586 82
`7,884,570 B2
`7,986,127 B2 *
`200110003205 Al
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`2005/0269883 A l
`2006/018 124 1 A l
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`
`11120 IO Fischer et al.
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`7/2011 Fischer el al ............ ..... 320/1 11
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`
`FOREIGN PATENT DOCUMENTS
`
`EP
`JP
`WO
`
`1198049
`2005063355
`OJ/01330
`
`412002
`3/2005
`112001
`
`OTHER PUBLICATIONS
`
`Charging Big Supercaps, Port able Design, p. 26, Mar. 1997.
`Ek-ctric Double-Layer Capacitors, vol. 2. Oct. 25. 1996, (Japan,
`Tokin Corp., Cat. No. EC-200E).
`Supercapacitor: User's Manual. vo l. 2, Japan, Tokin Corporation,
`Jan. l 997 (47 pages).
`U.S. Office Action for U.S. Appl. No. I 0/087,629 dated Sep. 7, 2004
`(6 pages).
`U.S. Office Action for U.S. Appl. No. 111175,885 dated Apr. 4, 2006
`(5 pages).
`1 l.S. OfliceAcl ion for 1 l.S. Appl. No. 11117'\,RR'\ n~le<I Oct. 70, 700'\
`(8 pages).
`U.S. OfficeAclion for U.S. Appl. No. 111749,680 dated Sep. 25, 2007
`(9 pages).
`U.S. Office Action for U.S. Appl. No. 12/l 74,204 dated Aug. 5. 2010
`(11 pages).
`U.S. Office Action for U.S. Appl. No. 121268,297 dated Aug. 18,
`2009 (9 pages).
`U.S. Office Action for U.S. Appl. No. 12/905,934 dated Nov. 29,
`20 10 ( 11 pages).
`U.S. Office Action for U.S. Appl. No. 11/ 175.885 dated Aug. 24,
`2006 (6 pages).
`U.S. Office Action for U.S. Appl. No. 1217 14,204 dated Aug. 5, 20 10
`( 11 pages).
`U.S. OfficcAclion for US. Appl. No. 11/ 175,885 dated Aug. 24, 2006
`(6 pages).
`U.S. Office Action for US. Appl. No. 13/ 175,487dated Dec. 12, 2011
`( IO pages).
`* cited by examiner
`
`ZTE/SAMSUNG 1001-0002
`IPR2018-00111
`
`

`

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`56
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`18
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`
`USB Port
`
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`
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`·28
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`ZTE/SAMSUNG 1001-0003
`IPR2018-00111
`
`~
`1 1
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`
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`
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`
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`
`

`

`U.S. Patent
`
`Jan.7, 2014
`
`Sheet 2 of 4
`
`US 8,624,550 B2
`
`'-102
`
`[----Power Conveti€;r
`
`'-104
`
`106
`
`Plug Unit
`
`108
`
`114N "N"Plug
`Adapter
`
`North
`11 ON American
`Power
`Socket
`
`... £..~.!).~DI
`"D" Plug l
`Adapter I
`
`1148
`L.~114
`r-•••
`....... ~ ...... H • • ~ . . . . . . . ...... . . ;
`"B" Ptug I
`! Other Plug !
`! Adapters !
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`! Power I
`! Socket I
`
`t ...... ·-·····-··-·-··-··········~
`
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`Ottier
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`Sockets i
`............................... ~ ...•.... :
`
`FIG. 2
`
`ZTE/SAMSUNG 1001-0004
`IPR2018-00111
`
`

`

`U.S. Patent
`
`Jan. 7, 2014
`
`Sheet 3 of 4
`
`US 8,624,550 B2
`
`I Voltage Detected on Vbus line
`
`IJpower portion o~~~B connector)
`
`:1 O
`
`'
`
`220
`
`Yes
`
`No
`
`USB Host or
`Hub Detected
`
`240
`
`230 USB Adapter
`Detected
`
`260
`
`.. :I Await
`
`Enumeration
`
`250
`
`,,,,.
`
`~ ...................................................... " - ! c - - J
`
`Charge Battery
`As Required
`
`FIG. 3
`
`ZTE/SAMSUNG 1001-0005
`IPR2018-00111
`
`

`

`U.S. Patent
`
`Jan.7,2014
`
`Sheet 4 of 4
`
`US 8,624,550 B2
`
`3'20
`
`Battery
`
`.... ,.,.~ ··--·-... -~ • • '
`,..--318 !
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`
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`i 1 Power
`[ Socket. I ! Sockets '
`
`._ .............. _ .......... J
`
`........ 3
`
`FIG.4
`
`ZTE/SAMSUNG 1001-0006
`IPR2018-00111
`
`

`

`us 8,624,550 82
`
`1
`MULTIFUNCTIONAL CHARGER SYSTEM
`AND METHOD
`
`CROSS-REFERENCE TO RELATED
`APPLICATIONS
`
`5
`
`2
`Although the USB interface can be used as a power inter(cid:173)
`face, the USB is typically not used for that purpose by mobile
`devices. In accordance with lhe USB specification. typical
`USB power source devices, such as bubs and hosts, require
`that a USB device participate in a host-initiated process called
`enumeration in order to be compliant w ith the current USB
`specification in drawing power from the USB interface.
`Although a mobile device could be adapted to partkipate in
`enumeration when drawing power over the USB imerface, ir
`10 would be preferable in many situations, such as when a host
`would not be available, as often happens during 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 enumeration to supply power
`15 to the mobile device via a USB interface.
`
`SUMMARY
`
`This is a continuation application of U.S. patent applica(cid:173)
`tion Ser. No. 13/ 175.509. filed Jul. 1. 2011 , now U.S. Pat. No.
`8,232,766. issued on Jul. 31 , 2012. by Daniel M. Fischer. et al.
`and entitled " Multifunctional Charger System and Method,"
`which is a continuation of U.S. patent application Ser. No.
`12/905,934, filedOc1.15, 2010, now U.S. Pal. No. 7,986,127,
`issued on Jul. 26, 201 I , by Daniel M. Fischer, e t al. and
`entitled "Multifi.mctional Charger System and Method."
`which is a continuation of U.S. patent application Ser. No.
`121714,204. filed Feb. 26, 2010 now U .S. Pat. No. 7,834,586,
`by Daniel M. Fischer, et al. and entitled " Multifunctional
`Charger System and Method," which is a continua lion of U.S.
`patent application Ser. No. 12/268,297, filed Nov. JO, 2008,
`now U.S. Pat. No. 7,737,657 issued on Jun. 15, 2010, by 20
`Daniel M. Fischer, et al. and entitled "System and Method for
`Charging a Battery in a Mobile Device," which is a continu(cid:173)
`ation of U.S. patent application Ser. No. J J/749.680, filed
`May 16, 2007, now U.S. Pat. No. 7 ,453,233 issued on Nov.
`18. 2008. by Daniel M. Fischer, et al. and entitled "Adapter 25
`System and Method for Powering a Device," which is a con(cid:173)
`tinuation ofU.S. patent appl ication Ser. No.111175,885, filed
`on Jul. 6, 2005, now U.S. Pat. No. 7,239,111 issued on Jul. 3,
`2007, by Daniel M . Fischer, et al. and entitled "Universal
`Serial Bus Adapter for a Mobile Device." which is a continu- 30
`ation of U.S. patent application Ser. No. 10/087,629, filed
`Mar. 1, 2002. now U.S. Pat. No. 6,936,936 issued on Aug. 30,
`2006, by Daniel M. Fischer, ei al. and entitled "Muhifi.mc(cid:173)
`tional Charger System and Method," which claims priority
`from U.S. Provisional Application No. 60/273,021, filed Mar. 35
`1, 2001 , by Daniel M. Fischer, et al. and entitled "System and
`Method for Adapting a USB to Provide Power for Charging a
`Mobile Device" and U.S. Provisional Application No.
`60/330,486. filed Oct. 23, 200 1. by Daniel M. Fischer. et al.
`and entit'led "Multifunctional Charger System and Method." 40
`Each of the above patent applications is hereby incorporated
`herein by reference in its e ntirety for all purposes.
`
`An adapter for providi11g a source of power to a mobile
`device through an industry standard port is provided. Jn
`accordance with one aspect of the invention, the adapter
`comprises a plug unit. a power converter. a primary connec(cid:173)
`tor, and an identification subsystem. Tue plug unit 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(cid:173)
`nector is electrically coupled to the power converter and is
`operative to couple to the mobile device and co deliver the
`oucputted power requirement to die mobile device. ·n1e iden-
`tification subsystem is electrically coupled to the primary
`connector and is operative to provide an identification signal.
`lu accordance with another aspect, a USB adapter for pro(cid:173)
`viding a source of power to a mobile device through a USB
`port is provided. Tue USB adapter comprises a plug unit, a
`power converter. a primary USB connector, and an identifi-
`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. TI1e power converter is elec(cid:173)
`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(cid:173)
`tor is electrically coupled to the power converter and is opera-
`45 live 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 ro provide an identification signal.
`Another aspect provides a USB adapter for providing a
`50 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. Tue
`plug unit is operative to couple the USB adapter to a power
`socket and operative to receive energy from the power socket.
`55 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
`60 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 of 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 co1mector. a power converter electrically
`coupled between the plug tmit and the primary USB connec-
`ZTE/SAMSUNG 1001-0007
`IPR2018-00111
`
`BACKGROUND
`
`TI1is invention relates generally to power adapters. More
`particularly. Lhe 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 ("PDA''), mobile commu(cid:173)
`nication device, cellular phone. wireless two-way e-mail
`corruuunication device, and o thers, requires design consider(cid:173)
`ations wilh respect to both the mobile device and the power
`source. With regard to the mobile device, most mobile devices
`provide a distinct power iJllerface for receiving power from a
`power source. for instance to recharge a battery. and a sepa(cid:173)
`rate data interface for communicating. For example, many
`mobile devices presently use USB (Universal Serial Bus)
`interfaces for conunurricating and use a separate power inter(cid:173)
`face. such as a barrel connector, for receiving power.
`It is desirable , however, to have a combined power and data
`imerface. 1l1e mobile devices that do have combined power
`and data interfaces typically use non-standard and sometimes
`proprietary interfaces. Conseql1ently, combined interfaces for
`a particular manufacturer's mobile device may not be com- 65
`patible with combined interfaces for mobile devices provided
`by other manufacturers.
`
`

`

`us 8,624,550 8 2
`
`3
`tor, 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 require(cid:173)
`ment to the mobile device via the power converter and the 5
`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.
`lo accordance with another aspect, a powering system for a
`mobile device having a USB connector is provided. Tbe pow(cid:173)
`ering system comprises a power ctistribut ion subsystem in the
`mobile device that is operable to receive energy thro ugh the
`USB connector and to distribute the energy to at least one t5
`component in the mobile device and a USB adapter that is
`operative to couple to the USB connector. ·nie 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 uni t for regulating 20
`the received energy and fo r providing a power requirement to
`the power distribution subsystem, and an identification sub(cid:173)
`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
`more clearly understood. preferred embodiments thereof will
`be described in detail by way of example, with reference to
`the accompanying drawings, in which:
`FlG. 1 is a schematic d iagram 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 device: and
`FJG. 4 is a schematic diagram of an additional exemplary
`ernbodime11t of a USB adapter that is coupled to both au 40
`exemplary mobile device and an extemal battery.
`
`4
`wirelessly with external devices such as other mobile devices
`and other computers. The 1/0 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 direc tly with other computers and/or a
`means for receiving power fro m an external power source.
`The power subsystem 20 provides the mobile device 10 with
`a local power source.
`111e exemplary communication subsystem 14 comprises
`1 o components such as a receiver 22, a transminer 24, antenna
`elements 26 and 28, local osci llators (LOs) 30, and a process(cid:173)
`ing module such as a digi tal signal processor (DSP) 32. The
`particular design of the communication subsystem 14 and the
`components used therein can vary. It would be apparentto one
`of ordinary skill in the art to design an appropriate commu(cid:173)
`nication subsystem using conventional methods and compo-
`nents to operate over a communication network 34 based on
`the parameters necessary to operate over that communication
`network . For example, a mobile device JO geographically
`located in North America may include a communication sub(cid:173)
`system 14 designed to operate within tbe Mobitex™ mobile
`communication system or DataTAC™ mobile communica(cid:173)
`tion system, whereas a mobile device 10 intended for use in
`Europe may incorporate a General Packet Radio Service
`25 (GPRS) communication subsystem 14.
`Network access requirements will also vary depending
`upon tbe type of network 34. For example, in the Mobitex and
`Data TAC networks, mobile devices 10 are registered on the
`network using a unique personal identification number or PIN
`30 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(cid:173)
`scriber identity module (not shown), couuuonJy referred to as
`a SJM card, in order to operate on a GPRS nerwork . Without
`35 a SIM card, a GPRS device will not be fully :fonctional. 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 conununications over the network
`34.
`Whe11 required, after the network registration or activation
`procedures have been completed. a mobile device 10 may
`send and receive communication signa Is over the network 34 .
`Signals received by the receiver antenna 26 through a com(cid:173)
`munication network 34 are input to the receiver 22. which
`45 may perform such conunon receiver fonctions as signal
`amplification, frt.'<}uency down conversion, fi ltering, channel
`selection and lhe I ike, and in the exemplary system shown in
`FIG. 1. analog to digital conversion. Analog to digital con(cid:173)
`version of a received signal allows more complex commun.i-
`50 cation functions such as demodulation and decoding to be
`performed in a DSP 32. Similarly, signals to be transmitted
`are processed, including modu.lation and encoding for
`example, by the DSP 32 and input to the transmitter 24 for
`digital to analog conversion. frequency up conversion, filter-
`ing, aniplification and transmission over the conununication
`network 34 via the transmitter ante1ma 28.
`Also, in the exemplary communication subsystem 14, the
`DSP 32 processes communication signals and also provides
`for receiver and Lransmitter control. For example, the gains
`60 applied to communication signals in the receiver 22 and trans(cid:173)
`mjtter 24 may be adaptively controlled through automatic
`gain control algorithms implemented in the DSP 32.
`In implementing its control function, the microprocessor
`12 in the exemplary mobile device 10 executes an operating
`65 system. The operating system software used by the micropro(cid:173)
`cessor 12 is preferably stored in a persistent store such as flash
`memory 36, or alternatively read only memory (ROM) or
`ZTE/SAMSUNG 1001-0008
`IPR2018-00111
`
`DETAILED DESCRIPTION
`
`Exemplary Mobile Device
`
`Turning now to tbe drawing figures, shown in FIG. 1 is a
`schematic diagram of an exemplary mobi le communication
`device 10 which bas an industry standard interface. The
`mobile communication device 10 is preferably a two-way
`communication device having at least voice or data commu(cid:173)
`nication capabilities. Preferably, the mobile device lO is also
`capable of communicating over the Jntemet, 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 capa(cid:173)
`bilities), a personal digital assistant ("PDA"), a wir eless two(cid:173)
`way e-mail communication device. and others.
`TI1e exemplary mobile device 10 comprises a microproces(cid:173)
`sor 12, a communication subsystem 14, inpul.loutput ("l/O")
`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 pro(cid:173)
`vides the mobile device 10 with the ability to communicate
`
`55
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`

`

`US 8,624,550 B2
`
`5
`similar storage element. The microprocessor 12 may also
`e nable 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 commu(cid:173)
`nication applications for example. will nom1ally be installed
`on the mobile device 10 during manufacnirc. One such appli(cid:173)
`cation loaded on the mobile device 10 could be a personal
`information manager(PIM) applicatioo. The PIM application
`preferably is an application fororganizingand managing user
`inpuned data items such as e-mail, calendar events. voice
`mails. appointments, and task items. The PIM data items may
`be stored in the RAM 38 and/or the nash memory 36.
`·n1e PIM application preferably has the ability to send and
`receive data items. via the wireless network 34. The PIM data
`items are preferably seamlessly int(.-grated, synchronized and
`updated, via the wireless network 34. wiih 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.
`111ere are several possible mechanisms for loading appli(cid:173)
`cations onto the mobile device 10. For example. applications
`may be loaded onto the mobi le device 10 through the wireless
`network 34, an auxiliary 1/0 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 Joadjng. thc applications onto lhc 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) such as ROM for execution by the micro(cid:173)
`processor 12. The available application installation mecha(cid:173)
`nisms can increase the utility of the mobile device 10 by
`providing the device user with a way of upgrading the mobile
`device 10 with additional and/or enhanced on-device func(cid:173)
`tions, communication-related
`functions, or both. For
`example, a secure communication application may be loaded
`onto the mobile device 10 that allows for electronic com(cid:173)
`merce functions or other tinancial transactions to be per(cid:173)
`formed using the mobile device 10.
`'fbc 1/0 devices 16 may be used to display and/or compose 4~
`data communication messages. In one mode of operation. a
`signal received by the mobile device 10. such as a text mes(cid:173)
`sage or web page download. will be received and processed
`by the communication subsystem 14 , forwarded to the micro(cid:173)
`processor 12. which will preferably further process the
`received signal, and provide the processed signal to one or
`more of the 110 devices 16 such as a display 46. Alternatively,
`a received signal such as a voice signal can be provided to a
`speaker 48. or a lternatively to an auxiliary 1/0 device 40. In
`another mode ofoperntion a device user may compose a dma
`item such as an e-mail message using a keyboard 50 in coop(cid:173)
`eration with the display 46 and possibly an auxiliary 1/0
`device 40. Alternatively. a device user may compose a voice
`message via a microphone 52. ·111e composed data item may
`then be transmitted over a communication network 34 using 60
`the communication subsystem 14.
`A shon-range communications subsystem 42 may be pro(cid:173)
`vided in the mobile device 10 to allow the mobile device 10 to
`commmlicate with other systems or devices. which need not
`necessarily be similar to device J 0. For example. the short(cid:173)
`rangecommunications subsystem 42 may include an infrared
`device and associated circuitry and components or a Blue-
`
`6
`toothTM communicatioo module to a llow the device 10 to
`comnnmicate 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
`s exchange data and/or to receive power. The USB port 18 a lso
`provides the mobile device I 0 with a means for receiving
`power from an external power source. For example, in a
`personal digital assistant (PDA)-typc communication device.
`the USB port 18 could be used to allow the mobile device 10
`to to synchronize data with a user's desktop compmer (not
`shown). The USB pon 18 could also enable a user to set
`parameters iu the mobile device 10 such as preferences
`through the use o f a n external device or so fl ware application.
`ln additiou the USB port 18 may also be used to provide a
`t 5 means for downloading information or software to the mobile
`device 10 without using the wireless conununication uetwork
`34. T he VSB port 18 can provide a direct and thus reliable and
`trusted connection that may for example be used to load an
`cncryptiou key onto the mobile device 10 thereby enabling
`20 secure device communication.
`Coupled to the USB pon 18 is a USB connector 54. The
`USB COllllector 54 is the physical component that couples the
`USE pon 18 to the outside world. In the exemplary mobile
`device 10. the USB eo1mector 54 is used to transmit and
`25 receive data from an external data/power source 56. receive
`power from the external data/power source 56. direct the
`transmitted/received data from/ to the USB port 18. and direct
`the received power to the power subsystem 20.
`The exemplary power subsyste m 20 comprises a charging
`30 and power distribution subsystem 58 and a battery 60. The
`charging and power distribution subsystem 58 perfonns
`many functions. It may be LJ)eu to uansfer energy 10 the
`battery 60 from the external data/power source 56 to charge
`the battery 60 and also to distribute power to the many powcr-
`35 requiring components within the mobile device 10. 111e
`charging subsystem 58 may be capable of determining the
`presence of a battery 60 ancVor a power circuit coupled to the
`mobile device 10. such as an AC adapter. USB connection. or
`car adapter. which altematively can act as power sources 56 to
`40 provide power for the mobi le device l 0 aud to charge the
`battery 60. Additiona lly, Lhc charging subsystem58 may have
`the ability to determine if a power source 56 is coupled to the
`mobile device 10 and, in theabsenccofsucha coupling. cause
`the mobile device 10 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 60 ancVor energy received from the external data/
`power source 56. When the battery 60 is depleted the charg(cid:173)
`ing and power distribution subsystem 58 transfers energy
`so from the power source 56 to recharge the battery 60. Option(cid:173)
`ally. the charging and power distribution subsystem 58 may
`also transfer energy from the power source 56 to other com(cid:173)
`ponents in the mobile device 10 to power the mobile device 10
`when the battery 60 has been depicted and is recharging.
`~5 When the data/power source 56 is not connected to the mobile
`device I 0, power for the device l 0 is derived from the banery
`60.
`
`Exemplary USl3 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 of
`FIG. 1 to the data/power source 56 ofFlG. l. In this example
`the adapter 100 is a USB adapter J 00 that comprises a primary
`65 USB connector 102, a power converter 104. a plug unit 106,
`and an identification subsystem I 08. The power converter is a
`known c lement in the art and typically includes at least o ne o f
`ZTE/SAMSUNG 1001-0009
`IPR2018-00111
`
`

`

`us 8,624,550 82
`
`7
`the following components: switching converter, transfor