ces
`
`|
`
`——
`
`Given Name (first and middle [if any])
`
`Family Name or Surname
`
`City
`
`and either State or Foreian Count
`
`Alpeoy.
`b3-Of-O]
`%:
`PTO/SB/16 (8-00)
`box ——p
`js
`OP 5
`Approvedfor use through10/31/2002, OMB ast
`—=
`PIRGENPR FES SS Ce neeaes
`= S
`US. PatentandTrademarkOffice; U.S. DEPARTMENTOF connertue
`——_
`os o
`oS Wunder the Paperwork Reduction Act of 1995, no persons are required to respond toa collection of information unless it displays a valid OMB control nu Ts =
`o==
`a S-
`r=S-s
`PROVISIONAL APPLICATION FOR PATENT COVER SHEET
`oS =o
`oS"
`This is a requestforfiling a PROVISIONAL APPLICATION FOR PATENTunder37 CFR 1.53(c).
`a =
`
`
`Ea
`—
`
`a =:
`=
`3
`INVENTOR(S)
`
`
`5
`-_
`
`
`
`
`
`303-276 Eiwo Ct.
`Waterloo, Ontario, CANADA N2K 3M6
`
`
`[x Additional inventors are being named on the _1_ separately numbered sheets attached hereto
`
`
`TITLE OF THE INVENTION (280 characters max
`SYSTEM AND METHOD FOR ADAPTING A USB TO PROVIDE
`POWER FOR CHARGING A MOBILE DEVICE
`
`
`
` LI
`ustomer
`——-
`
`Type Customer Number here
`Fi
`
`
`David B. Cochran, Esq.
`ieieead Name
`
`
` Address
`Jones, Day, Reavis & Pogue
`Address
`North Point, 901 Lakeside Avenue
`Cleveland_|state|on—_—|_zp_| 44114
`
`
`|county|CS[Telephone216/586-3939] Fax|216/579-0212
`
`ENCLOSED APPLICATION PARTS (checkail that app!
`
`
`
`
`
`
`
`
`Lad Specification NumberofPages
`OUISENINK Appendix |A - 33 pgs.
`
`[3x] Drawing(s) Number of Sheets [6|K, Assignment nes
`
`
`
`
`—_
`Other (specify)
`|Power of Attorney far
`[_] Application Data Sheet. See 37 CFR 1.76
`
`
`
`
`PB}
`Provisional Appin.
`
`METHODOFPAYMENTOF
`FILINGFEES FORTHIS PROVISIONAL APPLICATION FOR PATENT
`
`
`Applicant claims small entity status. See 37 CFR 1.27.
`A check or money order is enclosed to cover thefiling fees
`
`
`The Commissioneris hereby authorized to chargefiling
`X] feesor credit any overpaymentto Deposit Account Number:|__501432
`
`
`[-)
`Paymentby credit card. Form PTO-2038 is attached.
`The invention was made by an agency of the United States Governmentor under a contract with an agencyof the
`United States Goverment.
`( No,
`oO Yes, the name of the U.S. Government agency and the Government contract numberare:
`
`
`
`Daniel M.
`
`
`Direct all correspondence to:
`
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`
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`
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`
`Cx)
`
`FILING FEE
`
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`
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`
`:
`
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`p
`Respectfully~—
`
`REGISTRATIONNO.
`39,142
`(if appropriate)
`David B. Cochran
`
`mere UNGcoeeaTSDocket Number. 555255012132
`TELEPHONE
`216/586-3939)
`USE ONLY FOR FILING A PROVISIONAL APPLICATION FOR PATENT
`This collection of information is required by 37 CFR 1.51. The information is used by the public to file (and by the PTO to process) a
`provisional application. Confidentiality is governedby35 U.S.C. 122 and 37 CFR 1.74. This collection Is estimated to take 8 hours to
`complete, including oo: Preparing, and submitting the complete proven) seen to the PTO. Timewill vary
`depending uo
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`Any comments on
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`this form and/or suggestions for
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`should be sent to the Chief Information Officer, U.S. Patent and Trademark Office, U.S. Department of Commerce, Washington, D.C.
`20231. DO NOT SEND FEES OR COMPLETED FORMS TO THIS ADDRESS, SEND TO: Box Provisional Application, Assistant
`Commissionerfor Patents, Washington, D.C. 20231.
`
`ZTE/SAMSUNG 1003-0001
`ZTE/SAMSUNG 1003-0001
`IPR2018-00110
`IPR2018-00110
`
`

`

`PROVISIONAL APPLICATION COVER SHEET
`Additional Page
`
`PTO/SB/16 (8-00)
`Approved for use through 10/31/2002. OMB 0651-0032
`U.S. Patent and Trademark Office; U.S. DEPARTMENT OF COMMERCE
`Under the Paperwork Reduction Act of 1995, no persons are required to res pond to a collection of information unlessit displays a valid OMB contro! number.
`555255012132
`eeeee
`
`
`
`
`INVENTOR(S)/APPLICANT(S)
`
`|
`Residence
`
`
`Given Name(first and middle [if an
`Family or Sumame
`(City and either State or Foreign Country)
`Dan G.
`Radut
`300 Regina St. N., 1-1207
`
`
`
`Waterloo, Ontario, CANADA N2J 3B8
`
`
`
`
`
`27 Ronald Road
`Michael F. Habicher
`
`Cambridge, Ontario, CANADA N1S 4N2
`
` Quang Luong
`
`94 Fairway Road
`Unit 10
`Kitchener, Ontario, CANADA N2A 2N5
`
`
`100 Highland Cr.
`
`Jonathan Malton
`
`
`Kitchener, Ontario, CANADA N2M 5Cl
`
`
`
`tie
`
`i W
`
`eall
`
`Number 1
`
`of
`
`1
`
`WARNING: Information on this form may becomepublic. Credit card information should not
`be included on this form. Provide credit card information and authorization on PTO-2038.
`
`ZTE/SAMSUNG 1003-0002
`ZTE/SAMSUNG 1003-0002
`IPR2018-00110
`IPR2018-00110
`
`

`

`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`Title of the Invention
`
`System and Method for Adapting a USB to Provide Power for Charginga
`Mobile Device
`
`Inventors
`
`Daniel M. Fischer
`Dan G. Radut
`Mike Habicher
`Quang Luong
`Jonatahan Malton
`
`
`
`
`
`555255-012-132
`
`ZTE/SAMSUNG 1003-0003
`ZTE/SAMSUNG 1003-0003
`IPR2018-00110
`IPR2018-00110
`
`

`

`TITLE OF INVENTION
`
`System and Method for Adapting a USB to Provide Powerfor
`Charging a Mobile Device
`
`FIELD OF INVENTION
`
`This invention relates to rechargeable mobile devices having
`access to a Universal Serial Bus (USB).
`In particular, this invention
`relates to adapting power from the USBfor use as a power source by
`the charging system of the mobile device to re-charge the portable
`power supply of the mobile device.
`
`BACKGROUNDOF THE INVENTION
`
`is
`
`a
`
` communications bus for connecting a USB host controller such as a
`
`On one
`
`hand,
`
`the Universal Serial Bus
`
`(USB)
`
`HeHallMeeyal
`
`computer to peripheral devices. USB peripheral devices can be
`differentiated based on how they obtain their power in order to
`operate while connected. A self-powered peripheral has accessto a
`power supply external to USB, whereas a bus-powered peripheral
`derivesall of its power from the USB.
`On the other hand, traditional mobile devices usually have a
`portable powersupply that provides power to the mobile device while
`it is in service. Some portable power supplies are rechargeable so
`that when poweris depleted and the portable power supply becomes
`discharged, a charging system can be used to restore the chargein
`the portable power supply. The charging system obtains powerfrom
`an alternate power source, such as an AC outlet of a homeoroffice
`electrical network, in order to recharge the portable powersupply.
`
`555255-012-132
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`

`

`Certain rechargeable mobile devices use a separate charging
`system such as a docking cradle. Other rechargeable mobile devices
`integrate a built-in charging system in order to facilitate recharging
`the portable power supply whileit is still installed in the mobile device.
`Recently the hitherto separate fields of USB and mobile devices
`have collided. Certain rechargeable mobile devices have evolved to
`access USB capabilities in order to become USB peripherals for the
`purpose of communicating with USB host controllers such as a
`computer.
`In some cases, USB capabilities have been incorporated
`into the docking cradle, whereas in other cases USB capabilities have
`been integrated into the rechargeable mobile device itself,
`in a
`manneranalogoustothe location of the traditional charging system.
`Traditional rechargeable mobile devices having a USBalready
` have access to two power supplies, specifically a portable power
`supply and an alternate power supply. Therefore USB capable
`rechargeable mobile devices traditionally operate as self-powered
`USB peripherals.
`There is a need for a system and method of adapting the
`charging system of a USB capable rechargeable mobile device to use
`the powertraditionally available on the USB as an alternate power
`source for recharging the portable power supply of the mobile device
`thereby eliminating the need for a separate charging and USB
`
`wha
`
`Ie
`
`interfaces.
`
`555255-012-132
`
`ZTE/SAMSUNG 1003-0005
`ZTE/SAMSUNG 1003-0005
`IPR2018-00110
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`

`

`BRIEF SUMMARYOF INVENTION
`
`It is an object of the invention to provide a system and method
`of adapting the charging system of a USB capable rechargeable
`mobile device to use the powertraditionally available on the USB as
`an alternate powersource for recharging the portable power supply of
`the mobile device.
`Traditionally, the alternate power supply is of a much greater
`power capacity than the portable power supply, so that as much
`current as is needed can be drawn from the alternate power supply
`by the charging system in order to re-charge the portable power
`supply.
`However, powertraditionally available on the USB is 100mAto
`500mA at 5V, which sometimes has to be shared amongstup to 127
`
` self-powered peripherals. The exact amount of current available
`
`ns
`
`fledt
`
`varies as peripherals are connected and disconnected from the USB.
`In one embodiment of the invention, a charging circuit directly
`attached to the USB powerlines draws current without regard to
`
`traditional USB functionality.
`In another embodimentof the invention, a charging circuit uses
`a current analogous to the current being drawn from the USB onthe
`Vbus rail. Several elements of the invention are provided by an ASIC
`
`thereby facilitating manufacture.
`In yet another embodimentof the invention, the USB interface
`accessible to the mobile device isfurther adapted in order to favour
`two modesof operation: charging mode and communications mode.
`Further features of
`the invention will be described or will
`becomeapparentin the courseof the following detailed description.
`
`555255-012-132
`
`=m
`
`ZTE/SAMSUNG 1003-0006
`ZTE/SAMSUNG 1003-0006
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`

`

`BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE
`DRAWING
`
`In order that the invention may be more clearly understood,
`
`embodiments thereof will now be described in detail by way of
`
`example, with reference to the accompanying drawings, in which:
`
`Figure 1
`
`is a block diagram illustrating a non-enumerating
`
`embodiment:
`
`Figure 2 is a block diagram illustrating an enumerating
`
`embodiment:
`
`Figure 3 is a flowchart illustrating an enumerating method;
`
`Figure 4 is a block diagram illustrating a current sensing
`
`embodiment, which can be used for both enumerating and non-
`
`enumerating purposes;
`
`Figure 5 is a typical charge and voltage curve whichillustrates
`
`a current-sensing method; and
`
`Figure 6 is a flowchart which further illustrates a current-
`
`sensing method.
`
` tt
`
`TheWS
`
`HalltineWanSS
`
`iheHadayWall
`
`ile
`
`DETAILED DESCRIPTION OF THE INVENTION
`
`NON-ENUMERATING EMBODIMENT
`
`In one embodimentof the invention, a Li battery is charged by
`
`using the power available at a high-powered USB port, making no
`
`use of the D+ and D- data lines. A charger apparatus, such as a
`
`linear charger based on the LTC1734 charge controller,
`
`is used in
`
`this embodiment.
`
`In reference to Figure 1, a USB interface 100 comprising a
`
`Vbus power line 100, D+ data line 120, D- data line 130 and GND
`
`555255-012-132
`
`5
`
`ZTE/SAMSUNG 1003-0007
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`
`

`

`Hethllal
`TheWeUoallUyshu
`
`HhWaltheBallthHal
`
`powerline 140 is connected to a charging circuit 400 via the Vbus
`110 and GND 140 powerlines. A battery 500,
`to be charged,
`is
`connectedatit’s positive ent to the charging circuit 400, and at it’s
`negative end to the GND powerline 140.
`It was determined experimentally that current can be drawn
`from several USB ports at a high rate, such as 500mA, without
`problem. As used in this description and in the appendedclaims, a
`high-power USBport is a USB port which can provide around 500mA
`to be drawn by the invention. Typical means of providing a high-
`power USB port are ensuring that the invention is the only USB
`device to attach to the USB port of a desktop computer, a laptop
`
`computer, or a self-powered hub.
`First the charger is attached to the powerlines of a high-
`powered USB port, such as that of a desktop computer. An open
`voltage value is measured on the USB prior to charging operation.
`This was about 5.16V in experiments.
`Next, the battery is charged by drawing current at a rate of
`
`around 490mA.
`The start of charge can be detected by observing that the Vbus
`voltage value settles to a charging voltage value. This was about
`4.76V in experiments.
`the end of
`Finally, when the Vbus reaches its open value,
`charge condition is detected. This was about 5.16V in experiments.
`Additionally, when charging from the USB port of a portable
`computer, such as a laptop, after charging at the same rate ( 490mA)
`the Vbus voltage value settled to a charging voltage of about 4.65V.
`The difference between this laptop charging voltage value and the
`
`555255-012-132
`
`ZTE/SAMSUNG 1003-0008
`ZTE/SAMSUNG 1003-0008
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`
`

`

`desktop charging voltage value can be used to sense what type of
`high-powered device the invention is attachedto.
`the USB voltage
`Furthermore, still
`in the case of a laptop,
`disappears when the internal
`laptop batteries were “completely”
`discharged. The voltage is present again immediately after the laptop
`is attached to its charger. Therefore, the invention adapts both the
`batteries of a laptop and the power adapter ofthe laptop to provide
`powerto a rechargeable mobile device via the USBport.
`Furthermore, it seems that certain high-power USBports, such
`as a self-powered hub, appear to implement only an over-current
`protection, i.e. they turn off the voltage on the Vbus line for current
`values exceeding 700mA-800mA.
`Thus a battery chargerlimiting its charge current value to
`
` 500mA can be powered from a high-power USB port without being
`
`necessary to be enumerated by the host, although such a device is
`not currently compatible with the current USB standard.
`
`us
`
`thyWaal
`
`ENUMERATING EMBODIMENT
`the USB interface
`In another embodiment of the invention,
`accessible to the mobile device is further adapted in order to favour
`two modes of operation: a charging mode and the traditional
`communications mode. The traditional communications mode of
`operation of a USB peripheral
`is described in great detail
`in the
`current USB standard and is not discussed presently as it is obvious
`to a person skilled in the art. Both modes could be operated
`contemporaneously by a skilled person consulting both the standard
`and this specification, however this specification will positively set out
`and describe the charging mode.
`
`§55255-012-132
`
`-7-
`
`ZTE/SAMSUNG 1003-0009
`ZTE/SAMSUNG 1003-0009
`IPR2018-00110
`IPR2018-00110
`
`

`

`tillUe
`
`WienHeeittic
`
`HerWalltea,MaalHieHest
`
`Maul
`
`in reference to Figures 2, one embodimentof a system used in
`the charging mode will be described presently in greater detail.
`In
`this embodiment,
`all
`lines of USB interface 100 are utilized.
`Specifically, the data D+ 120 and D- 130 lines are utilized to provide
`data communication between a USB controller (not shown) and a
`micro processor 200 of the present invention. The microporcessor
`200 selectively controls soft-disconnect signal 120 to cause soft-
`disconnect means means210, such asa pairofelectrically controlled
`switchesto either connect or disconnect the microprocessorfrom the
`USB Interface 100. Microprocessor 200 also communicates with
`powerlevel limiting means 300 via set power level signal 220. The
`powerlevel limiting means 300, such as the switched current divider
`formed by a plurality offirst resistor 330 and switch 340, and a single
`second resistor 350, provides a power signal 310, such as a
`reference current,
`to charging circuit 400. Charging circuit 400 is
`connected to power lines Vous 110 and GND 140, and provides
`power to an attached battery 500 which is electrically connected at
`one end to the charging circuit 400, and at the other to the GNDline
`
`140 of the USB interface.
`In charging mode, the mobile device USB interface operates as
`a bus-powered peripheral
`interface, with a temporary disregard to
`communications functionality in favour of obtaining the maximum
`amountof current from the USB hostcontroller.
`A method of use of the system illustrated in Figure 2 will be
`described presently,
`in reference to Figure 3. At step 600,
`the
`microporcessor 200 sets powerlevel signal 220 to a minimum value,
`such as 0 mA.At step 610, the microprocessor sets a requested
`
`555255-012-132
`
`=a f=
`
`ZTE/SAMSUNG 1003-0010
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`
`

`

` ri
`
`i
`
`itethal
`
`tl
`ln
`
`the
`power to a maximum value, such as 500mA. At step 620,
`microprocessor 200 sends soft-disconnect signal 210 so that a
`connection to the USB interface is detected by a USB controller,
`
`which wasnot expressly shownin Figure 2.
`At step 630, the microprocessor monitors data lines D+ 120 and
`D- 130 and waits for the enumeration process to begin. At step 640,
`When connecting, during the enumeration process,
`the USB host
`controller obtains a power request from the mobile device USB
`peripheral interface. However, the USB host controller might not allot
`the amount requested, and at Step 650 this is determined.
`In order to maximize the likelihood of obtaining a large power
`allotment, the mobile device USB peripheralinterface is capable of
`electrically disconnecting and reconnecting using switchesin orderto
`force a new enumeration process as if a user had unplugged and
`then plugged in the mobile device USB interface to the USB host
`controller. This is accomplished by steps 670 and 680 respectively,
`after which the method continues at step 620.
`By comparing the amount of power requested and the amount
`of powerallotted, the mobile device USB interface can determine
`whether or not to disconnect and attempt a request for less power.
`When the amount of powerobtained corresponds with the amountof
`power allotted,
`the USB interface can proceed to operate in
`communications mode. This occurs at step 660, after which the
`
`method ends.
`In communications mode, one additional element is taught by
`the invention over a traditional USB device taught by the standard.
`The mobile device USB interface operates as a traditional USB
`
`555255-012-132
`
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`
`ZTE/SAMSUNG 1003-0011
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`

`

`Hlcell
`
`
`
`
`
`peripheral interface favouring traditional communications wherein the
`
`mobile device acts as either a
`
`self-powered or bus-powered
`
`peripheral, depending on the charge state of the portable power
`
`supply.
`
`If the portable power supply is sufficiently charged,
`
`the
`
`mobile device can act as a self-powered peripheral bypassing the
`
`charging mode. Conversely, if the portable power supply needs to be
`
`recharged, the mobile device can disconnect electrically and act as a
`
`bus-powered peripheral.
`
`CURRENT SENSING EMBODIMENT
`
`In reference to Figures 4-5, a third embodiment of the present
`
`invention will be described. The Charger Current Sense block 710
`
`provides a signal 717 to the Charge Control block 732 analogous to
`
`the current being drawn from the USB on the Vbusrail. The Charge
`
`Control block 732 uses this signal 717 to turn on the linear pass
`
`element 727, such as a bipolar transistor,
`
`to a greater or lesser
`
`degree by signal 727 as necessary in orderthat the total current does
`
`not exceed that required by the system.
`
`In the case of USB,this is
`
`for example either 100mA or 500mA.
`
`In addition and as a parallel
`
`control, the Charge Control! block 732 monitors the battery voltage
`
`level via the V_BAT 750 input, and controls the input current via the
`
`linear pass element 720 such that the battery voltage does not
`
`exceed the specified maximum, such as for example 4.20V. The
`
`Charge Control 732 block periodically inhibits delivery of current to
`
`the battery by switching off the linear pass element 720, and briefly
`
`monitoring the battery level at V_BAT 750. This information is used
`
`to determine whether the linear pass element 720 should control
`
`solely the input current, such as monitored by the Charger Current
`
`555255-012-132
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`

`

`
`
`MEWSeeallesUcHoll
`
`“theitesi,
`Mallth,elt
`Mallfh
`
`“He
`
`Sense block 710, or the input current and the battery voltage during
`
`the following “charge on” cycle, which will be described in further
`
`detail in reference to Figure 5 below.
`
`In the absence of input power at the Vbus 110, the Charge
`
`Control block 732 sets the switch 720 so that the first regulator 736
`
`and second regulator 738 connect
`
`to and draw power from the
`
`battery 500 via the V_BAT750 input.
`
`In order that the microprocessor 740 can monitor and control
`
`the charge system operation,
`
`the actual current delivered to the
`
`battery 500 is monitored by the Cell Current Sense block 760. This
`
`block produces a signal ISENSE_BAT 755 that is analogous to the
`
`actual charge current, and which is converted by an analog-to-digital
`
`converter, which is not explicitly shown in the drawing but
`
`is
`
`comprised in Charge Control block 732, and which may be read
`
`serially by the microprocessoron a serial interface, which is also not
`
`shownexplicitly in the drawings.
`
`In order to favour manufacturing, a specification for an ASIC
`
`730 to be known as Esker is provided in an appendix. The ASIC
`
`device performs charging, battery monitoring,
`
`low dropout voltage
`
`regulation, system reset control, and integration of a few other power
`
`consuming functions such as proximity sensor, vibrator, and buzzer.
`
`LDOs 736,738 are Low Drop-Out regulators.
`
`An LDO is
`
`typically a linear regulator that can manage to keep its output within
`
`regulation tolerance, while the input falls to only a small amount
`
`above the output voltage. Note that regulator 738 may be a buck
`
`switching regulator external to Esker, as it might need to supply more
`
`current than a linear regulator could handle without overheating.
`
`555255-012-132
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`ZTE/SAMSUNG 1003-0013
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`

`

`
`
`
`In an embodiment using Esker, charge termination will be
`performed by the microprocessor, as the charge current will be
`
`monitored.
`
`Note that the Charge Control block 732 also operates an
`
`electronic switch 727 when voltage is detected at the Vbus input 110.
`
`This switch diverts power as necessary from the source to operate
`
`the regulators 736.738 powering the microprocessor 740, in order to
`
`ensure that it is possible, even in the case of a severely discharged
`
`lithium battery 500, that the necessary communications and charge
`
`managementfunctions may be performed.
`
`One significant
`
`innovation in the configuration illustrated in
`
`Figure 4 is that the controlled parameter is system input current,
`
`rather than battery charge current. Varying of the battery charge
`
`current is used as the meansfor controlling (limiting) the system input
`
`current,
`
`thereby compensating for varying power drawn by the
`
`microprocessor.
`
`In reference to Figure 5, a “periodic charge” and “battery
`
`voltage compensation” method using the system of Figure 4 is
`
`illustrated in great detail. A battery voltage curve 800 and battery
`
`current curve 900 which illustrate the method of charging are
`
`depicted. A constant charge current 910, such as in this example
`
`500mA,
`
`is delivered to the battery until during a constant charge
`
`current period 1000, for instance during the first five constant charge
`
`current cycles 1010A,B,C,D,E in the figure. Between each cycle, the
`
`current
`
`is
`
`stopped 920A,B,C,D,E,F and the battery voltage
`
`820A,B,C,D,E,F (which climbs during charging) is measured. At the
`
`end of
`
`the constant charge current period 1000,
`
`the voltage
`
`555255-012-132
`
`=] 9=
`
`ZTE/SAMSUNG 1003-0014
`ZTE/SAMSUNG 1003-0014
`IPR2018-00110
`IPR2018-00110
`
`

`

`ceHall
`
`
`
`820A,B,C,D,E is sampled to be at or above a critical threshold, such
`
`as 4.2V 820F. In the next cycles 1510A,B,C,D, the charge currentis
`
`regulated such that the voltage 830 stays approximately constant
`
`during a constant voltage period 1500. When the sampled current
`
`930A,B,C reaches a cirtical
`
`threshold, such as 50mA 930D,
`
`the
`
`charging method finishes. The current is still set to zero between
`
`constant current charging cycles 935A,B,C,D.
`
`This methodis illustrated further in Figure 6 with a flowchart. At
`
`step 1020,
`
`the charge current is set to zero. This corresponds to
`
`points 920 of Figure 5. At step 1030, the voltage is sampled 820. At
`
`step 1030, the sampled voltage is compared to a threshold, such as
`
`4.20 V. In the event that the sampled voltage is below the threshold,
`
`at step 1050 a constant current charging cycle as described abovein
`
`reference to Figure 5 ensues, aftewhich the method continues at step
`
`1020. However, in the event that the sampled voltage is determined
`
`to be above or equal
`
`to the threhold at step 1030,
`
`the method
`
`continues at step 1520 in constant current charging mode 1500. At
`
`step 1520, a constant current charge cycle, as described abovein
`
`reference to Figure 5 ensures. At step 1530,
`
`the current 930 is
`
`sampled. At step 1540, the current 935 is set to zero. At step 1550,
`
`the sampled current 930 is compared to a threshold. In the event that
`
`the current is greater than the threshold, the method continues at
`
`step 1520.
`
`In the event that the sampled current 930 is below the
`
`threshold, the method ends.
`
`It will be appreciated that
`
`the above description relates to
`
`embodiments by way of example only. Many variations on the
`
`invention will be obvious to those knowledgeable in the field, and
`
`555255-012-132
`
`-13-
`
`ZTE/SAMSUNG 1003-0015
`ZTE/SAMSUNG 1003-0015
`IPR2018-00110
`IPR2018-00110
`
`

`

`such obvious variations are within the scope of the invention as
`described and claimed, whetheror not expressly described.
`
`
`
`
`MollthethtticesWall
`
`il
`
`$55255-012-132
`
`=i4<
`
`ZTE/SAMSUNG 1003-0016
`ZTE/SAMSUNG 1003-0016
`IPR2018-00110
`IPR2018-00110
`
`

`

`CLAIMS
`
`1SintESteow
`
`555255-012-132
`
`-15=-
`
`ZTE/SAMSUNG 1003-0017
`ZTE/SAMSUNG 1003-0017
`IPR2018-00110
`IPR2018-00110
`
`

`

`ABSTRACT
`
`
`
`H+talltySl
`
`HerWaal
`
`555255-012-132
`
`-16-
`
`ZTE/SAMSUNG 1003-0018
`ZTE/SAMSUNG 1003-0018
`IPR2018-00110
`IPR2018-00110
`
`

`

`110
`
`"
`
`Vous /420
`D+ J 13
`D-
`140
`
`So
`
`Gnd
`
`‘/
`
`100
`
`USBInterface
`
`Upallcall
`SaneMaa
`ialtea
`
`h.al
`
`HealWayall
`NfomenLER
`ChargingCircuit
`|
`Battery
`
`
`J TL400
`|
`HhMpa
`
`1
`
`L
`
`Figure 1
`
`555255-012-132
`
`ZTE/SAMSUNG 1003-0019
`ZTE/SAMSUNG 1003-0019
`IPR2018-00110
`IPR2018-00110
`
`

`

`i 10
`120
`
`Vbus
`
`I130
`D+
`D- / 140
`
`Gnd
`
`er Signal
`
`
`
`Micro Processor
`
`
`
`
`
`Set Power Level
`
`Soft-Disconnect
`
`
`
`
` |{220
`
`
`
`
`100
`
`USB Interface
`
`Charging Circuit
`
`bis
`
`eetwall
`
`tom,
`
`hea
`
`Thal
`
`HeGadlth,
`
`Helt
`
`[500
`
`Figure 2
`
`555255-012-132
`
`ZTE/SAMSUNG 1003-0020
`ZTE/SAMSUNG 1003-0020
`IPR2018-00110
`IPR2018-00110
`
`

`

`
`
`
`Maximum
`
`
`Set Charge Power
`to Minimum
`
`Set Requested
`Powerto
`
`y
`
`600
`
`610
`
`
`
` Soft-Connectto
`
`620
`
`the USBus
`
`
`Request Power
`when Enumerated|
`by USBcontroller
`
`650
`
`
`
`
`
`
`Wait for USB|_{0
`
`
`Enumeration
`process
`
`
`
`
`
`
`||
`
`Alloted Power >=
`
`
`Requested Power
`
`
`
`
` Set Charge Power
`Yes—t
`to Requested
`
`
`
`
`
`
`No
`
`Power
`
`
` Lower Requested
`
`
`
`670
`
`Soft-disconnect
`
`680
`
`
`
`
`555255-012-132
`
`Figure 3
`
`ZTE/SAMSUNG 1003-0021
`ZTE/SAMSUNG 1003-0021
`IPR2018-00110
`IPR2018-00110
`
`

`

`
`
`Pte
`
`
`
`HtthaadlA,
`
`atl
`
`
`
`
`
`
`
`
`Cell Current
`Sense
`
`ISENSE
`
`|
`
`[730a
`
` ——|
`
`male
`
`LD
`
`|
`
`[738
`
`Microprocessor
`
`Figure 4
`
`555255-012-132
`
`ZTE/SAMSUNG 1003-0022
`ZTE/SAMSUNG 1003-0022
`IPR2018-00110
`IPR2018-00110
`
`

`

`Voltage Compensation
`
`
`
`current
`
`vnBlanMsWall
`tethal
`
`UhlUszingUsaell
`
`ibs
`
`fe
`
`[|10408TTVovoion[1010E “om|1510D
`[1000
`[1500_T
`
`Figure 5
`
`555255-012-132
`
`ZTE/SAMSUNG 1003-0023
`ZTE/SAMSUNG 1003-0023
`IPR2018-00110
`IPR2018-00110
`
`

`

`Set Currentto 0
`
`Sample Voltage
`
`1030
`
`1520
`
`
`14020
`
`
` Battery Voltage <
`Voltage Threhold?
`
`
`
`Yes
`
`
`
`
`
`
`
`
`_ Approximately
`Consiant Voltage <———
`Charging Cycle
`
`|
`
`1530
`
`Sample Current
`
`Te
`1540
`
`Set Current to 0
`
`
`
`
`
` Battery Current >
`
`Current Threshold ?
`
`[1 550
`
`No
`
`End
`
`Figure 6
`
`955255-012-132
`
`ZTE/SAMSUNG 1003-0024
`ZTE/SAMSUNG 1003-0024
`IPR2018-00110
`IPR2018-00110
`
`

`

`Attorney Docket No. 555255012132
`
`PATENT
`
`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`In re Application of: Daniel M. Fischer
`Dan G. Radut
`Michael F. Habicher
`Quang Luong
`Jonathan Malton
`
`Application No.:
`
`Not Yet Assigned
`
`Filed:
`
`For:
`
`Herewith
`
`SYSTEM AND METHOD FOR ADAPTING A USB TO PROVIDE
`POWER FOR CHARGINGA MOBILE DEVICE
`
`POWER OF ATTORNEY FOR PROVISIONAL APPLICATION
`
`Each inventor,identified above and signing below, hereby appoints each of the
`following as my attorneys with full power of substitution and revocation, to prosecutethis
`application andto transactall business in the Patent and Trademark Office connected therewith:
`
`David B. Cochran, Registration No. 39,142; Kenneth R. Adamo,Registration No. 27,299;
`John V. Biernacki, Registration No. 40,511; Barbara Arndt, Registration No. 37,768;
`Regan J. Fay, Registration No. 26,878; F. Drexel Feeling; Registration No. 40,602;
`Calvin P. Griffith, Registration No. 34,831; Warren M. HainesII, Registration No.
`40,632; Shawn A. McClintic, Registration No. 45,856; Timothy J. O'Hearn, Registration
`No. 31,552; Stephen D. Scanlon, Registration No. 32,755; Jenny L. Sheaffer, Registration
`No. 45,099; Duane Switzer, Registration No. 22,431; Michael W. Vary, Registration No.
`30,811; and James L. Wamsley,Il, Registration No. 31,578;
`
`all of the firm of Jones, Day, Reavis & Pogue, North Point, 901 Lakeside Avenue, Cleveland,
`Ohio 44114; Krishna K.Pathiyal, Registration No. 44,435, Research In Motion Limited, 295
`Phillip Street, Waterloo, Ontario, Canada N2L 3W8; and Charles B. Meyer, Registration No.
`33,563, Research In Motion Limited, 25227 Grogan's Mill Road, Suite 125, The Woodlands,
`Texas 77380.
`
` i
`
`¥
`
`
`
`Page 1 of 2
`
`ZTE/SAMSUNG 1003-0025
`ZTE/SAMSUNG 1003-0025
`IPR2018-00110
`IPR2018-00110
`
`

`

`I hereby designate the following as my mailing address and telephone number:
`
`David B. Cochran, Esq.
`Jones, Day, Reavis & Pogue
`North Point, 901 Lakeside Avenue
`Cleveland, Ohio 44114
`(216) 586-3939
`
`Each inventor, identified above and signing below,authorizes the above namedattorney(s) and/or
`agents to accept and follow instructions from his/her representative(s).
`
`/O\
`4
`Date: fe
`Date: 1%(4fo$_
`fe
`
`200f Quang Luong Jonathan Malton
`
`Inventor(s)
`
`Daniel M.Fischer
`ban. Radut
`Michael F. Habicher
`
`
`
`ed
`ie
`
`Page 2 of 2
`
`ZTE/SAMSUNG 1003-0026
`ZTE/SAMSUNG 1003-0026
`IPR2018-00110
`IPR2018-00110
`
`

`

`Confidential & Proprietary Information
`
`Preliminary Information
`
`Vendor Part #:
`
`Esker ASIC Specification
`Project:
`ASIC Part #:=ANA-03126-002
`Author:
`Mike Habicher, mikeh@rim.net, x2207
`Date:
`16-Feb-2001
`Document:
`03126002, rev B
`Vendor:
`
`Esker ASIC Specification
`
`E>|ee|2 =20
`
`Researchin Motion, Ltd.
`
`295 Phillip Street
`Waterloo, ON NIS 4N2
`Canada
`
`Tel:
`Fax:
`
`+1519 888-7465
`+1519 888-6906
`
`
`
`
`is
`
`
`
`Copyright © 1999-2000, Research in Motion, Ltd.
`All Rights Reserved.
`O1IKANND Araft
`
`Page 1
`
`Relor ASIO Snorifiration
`
`ZTE/SAMSUNG 1003-0027
`ZTE/SAMSUNG 1003-0027
`IPR2018-00110
`IPR2018-00110
`
`

`

`Confidential & Proprietary Information
`
`Preliminary Information
`
`1 Table of Contents
`
`L -TABLE OF CONTENTS, wosesccssccscscccsssstsessensscsesssssesssecessssensteneransnceasenesseneneavanenssaseassasuseracnneransnengneneegens 2
`
`2
`LIST OF TABLES... eeeeeeene
`—
`preenenrs:
`_
`3
`LIST OF FIGURES.....:cssccesssssscssescssnssscsnssnssssesseseaesaaqensascnssssecasesnaens
`
`4
`DOCUMENT HISTORY...........esesescssssssssssssseesesesesesessenessnsssssessstsnans
`5
` INTRODUCTION.........ccceeessees
`wi
`sive
`sas
`Sere
`5.1
`SCOPE .esccssesesssesecsecscsesecesaesesesesecscescsnsesesnensnsannesesseseseeuensacaneasesaseranenansastntesesecaseensanenenaneanenensnannae 7
`
`5.2—-TECHNICAL CONTACTS ...e..essessessesesssreneserssesussnesssasenseassnecusauenstarsnsenrentantarenessaneaurancnueanansananeaaren 7
`
`5.3.
`
`FUNCTIONAL DESCRIPTION......sesscsscesessesssesneneseneantarensesesuessnenesnetansansnanenssenseaneanenenecescsegnanenenenians 7
`
`5,4—-REFERENCES .....esscscsscessssesesesesssscersscsnssessacacesceesenesnqeaneneganeensnsissssrsnssassneaceacesaresennegnnnenanenseneassnonss 7
`
`REQUIREMENTS.....--seccseesseecsecssesssessecsssnssonscsseesuseanseseseneesseesnesnseconeesseesaesnsconsecnseenscanacanenanenunacaneeneatas 8
`GENERAL cescccsssssssscstscsscessssessesesarsnensnssesesssscscsnssansnesesesersesesearanenenaneaseasscosseansuanscesansausarenasananenens 8
`GL
`
`6
`
`GL BlockDiagram..o.sc.ccccccessssssessssesvecesssesessesneseensnesnsscensnssaeassnnsnsneacsnsnenncecssnenasaeanansnaeneanens 8
`6.1.2—Pin Descriptions ..s.scscccesseecsecsesesneeneesssnscnectssiententenesaraneereaenteneanecueasenseneeneannanenenrenrennentes 9
`O13
`PACKAZINAY oc ceecesseessssersenessesneseseeneenssnenensenesnenentesuansnessenrancnstessesnananeeseseanenseneaaneneesananens 12
`
`6.1.5—Excterneal Components....o...cscssecsseesseesseesveeseesneessersneesessesesesecessssesssseasestesnrenneennesntennseseee 12
`
`CID PRE GATIIcscs cccscxentsrsnicccatineeseneseceusaeanimenetmmer reecemeetin 12
`
`
`
`
`i
`3
`
`G15. Magnetics ...n..sesssecosssssesnssesssssessnesssenesseesss