Alpeoy.
`b3-Of-0]
`|
`Pleasetype a plus sign (+) inside this box ——p>PTO/SB/16 (8-00)
`Approved for use through10/31/2002, OMB 0651-0
`* =e8
`oT
`U.S. PatentandTrademarkOffice; U.S. DEPARTMENTOFcomer
`qa? SS Under the Paperwork Reduction Act of 1995, no persons are required to respond to a collection of information unless it displays a valid OMB control nu
`ty
`=
`c ej
`oS
`;
`SS"
`PROVISIONAL APPLICATION FOR PATENT COVER SHEET
`as =o
`of This is a requestforfiling a PROVISIONAL APPLICATION FOR PATENTunder 37 CFR 1.53(c).
`
`
`-=s
`
`
`INVENTOR(S)
`co
`a
`-
`Residence
`o
`
`
`City and either State or Foreign Count
`Given Name (first and middle[if any))
`Family Name or Sumame
`
`
`
`
`
`303-276 Eiwo Ct.
`Daniel M.
`Fischer
`
`Waterloo, Ontario, CANADA N2K 3M6
`
`
`
`
`
`[xl 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
`
`Direct all correspondence to:
`CORRESPONDENCE ADDRESS
`BarCode Labelhere
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`y
`
` Ll
`
`OR
`
`Fi
`
`Type Customer Numberhere
`
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`
`
`
`
`
`
`
`
`Jones, Day, Reavis & Pogue
`North Point, 901 Lakeside Avenue
`Cleveland_|state|oH|mp_| 44114
`|County|ss——____([Felephone216/586-3939] Fax |216/579-0212
`
`ENCLOSED APPLICATION PARTS (checkal? that apply)
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`[xl Specification Number ofPages [ise_|CODISIXHORBEK Appendix|A - 33 pgs.
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`Se aeonee veyea), [555255012132_|SSa55N121492Docket Number:
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`SIGNATURE
`
`:
`
`David B. Cochran
`
`)
`586-
`TELEPHONE
`USE ONLY FOR FILING A PROVISIONAL APPLICATION FOR PATENT
`This collection of information is
`red 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 governed by 35 U.S.C. 122 and 37 CFR 1.14. This collection Is estimated to take 8 hours to
`complete, including yaa, preparing, and submitting the complete provisionalapplication to the PTO. Timewill — depending om
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`Any comments on
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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
`Commissioner for Patents, Washington, D.C. 20231.
`
`Huaweiv. FISI Exhibit 1003 - 1/59
`
`

`

`PROVISIONAL APPLICATION COVER SHEET
`Additional Page
`
`PTO/SB/16 (8-00)
`ee 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 respondto a collection of information unless it displays a valid OMB control! number.
`
`Typeaplus sign (+
`
`
`555255012132
`
`
`Given Name(first and middle[if any])
`Family or Sumame
`Dan G.
`Radut
`
`
`
`INVENTOR(S)/APPLICANT(S)
`Residence
`
`
`
`
`300 Regina St. N., 1-1207
`Waterloo, Ontario, CANADA N2J 3B8
`
`Michael F.
`Habicher
`27 Ronald Road
`
`
`Cambridge, Ontario, CANADA
`NI1S 4N2
`
`
`
`
`
`Quang
`Luong
`94 Fairway Road
`Unit 10
`Kitchener, Ontario, CANADA N2A 2N5
`
`Malton
`100 Highland Cr.
`Kitchener, Ontario, CANADA N2M 5Cl
`
`
`
` Jonathan
`
`
`
`
`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.
`
`Huaweiv. FISI Exhibit 1003 - 2/59
`
`

`

`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`Title of the Invention
`
`System and Method for Adapting a USB to Provide Power for Charging a
`Mobile Device
`
`Inventors
`
`Daniel M. Fischer
`Dan G. Radut
`Mike Habicher
`Quang Luong
`Jonatahan Malton
`
`oF
`
`
`
`555255-012-132
`
`Huaweiv. FISI Exhibit 1003 - 3/59
`
`

`

`WaHealtull
`
`sein,eTeeWbraallMisHal!YerFSiBedtimethes
`
`
`HerneeTtie,iYmt
`
`
`
`feHhadtAt
`
`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 USB for use as a power source by
`the charging system of the mobile device to re-charge the portable
`powersupply of the mobile device.
`
`BACKGROUND OF THE INVENTION
`
`a
`is
`(USB)
`the Universal Serial Bus
`hand,
`On one
`communications bus for connecting a USB host controller such as a
`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 access to 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 usedto restore the charge in
`the portable power supply. The charging system obtains power from
`an alternate power source, such as an AC outlet of a homeoroffice
`electrical network, in order to recharge the portable powersupply.
`
`555255-012-132
`
`ano
`
`Huaweiv. FISI Exhibit 1003 - 4/59
`
`

`

`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 USBperipherals 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
`manner analogousto the 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 power traditionally 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
`interfaces.
`
`i,
`
`heWSallAS,alae
`
`etallahs,
`Hstll
`
`iT
`
`555255-012-132
`
`Huaweiv. FISI Exhibit 1003 - 5/59
`
`

`

`ji
`2th=
`
`WihathesUE
`
`ieAltieWoes.Gall
`
`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 power source 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 100mA to
`500mAat 5V, which sometimes has to be shared amongstup to 127
`self-powered peripherals. The exact amount of current available
`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 on the
`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
`become apparentin the course ofthe following detailed description.
`
`555255-012-132
`
`iif
`
`Huaweiv. FISI Exhibit 1003 - 6/59
`
`

`

`Wallsal
`
`ies
`
`Roweeysue.aryBeMitetsltUivanealltess
`
`fiehaltde,tat
`
`MeThal
`
`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.
`
`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
`
`Huaweiv. FISI Exhibit 1003 - 7/59
`
`

`

`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 atit's
`negative end to the GND powerline 140.
`lt 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 appended claims, 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 samerate ( 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
`
`Huaweiv. FISI Exhibit 1003 - 8/59
`
`;T
`
`all,HallheWEEThadgyaaEEEWall
`
`ihWalldhe
`
`

`

`Weedb
`ac.
`fleten
`
`twhaltdoTataE,
`
`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 USB port.
`Furthermore, it seems that certain high-power USB ports, such
`as a self-powered hub, appear to implement only an over-current
`protection, i.e. they turn off the voltage on the Vbusline for current
`values exceeding 700mMA-800mA.
`Thus a battery charger limiting 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.
`
`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 asit 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.
`
`555255-012-132
`
`-7-
`
`Huaweiv. FISI Exhibit 1003 - 9/59
`
`

`

`In reference to Figures 2, one embodimentof a system used in
`the charging modewill 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 USBcontroller (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 means 210, such asapair of electrically controlled
`switches to either connect or disconnect the microprocessor from the
`USB Interface 100. Microprocessor 200 also communicates with
`powerlevellimiting means 300 via set power level signal 220. The
`powerlevellimiting means 300, such as the switched current divider
`formed byaplurality 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 Vbus 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 GND line
`
`aitdiy,whHeWailcl
`ileWAsshall
`
`iii
`
`istal
`
`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 host controller.
`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
`
`-8-
`
`Huawei v. FISI Exhibit 1003 - 10/59
`
`

`

`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 was not 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 notallot
`the amount requested, and at Step 650this is determined.
`in order to maximize the likelihood of obtaining a large power
`allotment, the mobile device USB peripheral interface is capable of
`electrically disconnecting and reconnecting using switches in order to
`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 power obtained corresponds with the amount of
`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
`
`=
`
`
`
`intiilileWellte,tall
`
`Huawei v. FISI Exhibit 1003 - 11/59
`
`

`

`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 disconnectelectrically 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
`
` Control block 732 uses this signal 717 to turn on the linear pass
`
`provides a signal 717 to the Charge Control block 732 analogous to
`
`the current being drawn from the USB on the Vbusrail. The Charge
`
`element 727, such as a bipolar transistor,
`
`to a greater or lesser
`
`a
`
`degree by signal 727 as necessary in order that 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 Contro! 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
`
`-10-
`
`Huawei v. FISI Exhibit 1003 - 12/59
`
`

`

`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_BAT 750 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
`
`i}ta
`
`actual charge current, and which is converted by an analog-to-digital
`
` comprised in Charge Control block 732, and which may be read
`
`converter, which is not explicitly shown in the drawing but
`
`is
`
`serially by the microprocessoronaserial interface, which is also not
` shown explicitly in the drawings.
`In order to favour manufacturing, a specification for an ASIC
`
`aul
`iin
`
`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
`
`~11-
`
`Huawei v. FISI Exhibit 1003 - 13/59
`
`

`

`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 orderto
`
`ensure that it is possible, even in the case of a severely discharged
`
`lithium battery 500, that the necessary communications and charge
`
`management functions may be performed.
`
`One significant
`
`innovation in the configuration illustrated in
`
`=
`
`Figure 4 is that the controlled parameter is system input current,
`
` current is used as the means for controlling (limiting) the system input
`
`rather than battery charge current. Varying of the battery charge
`
`
`
`teWallihe,
`
`fieTall
`
`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
`
`=1'3%
`
`Huawei v. FISI Exhibit 1003 - 14/59
`
`

`

`820A,B,C,D,E is sampled to be at or aboveacritical 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 methodisillustrated 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
`
`
`FU
`
`
`1020. However, in the event that the sampled voltage is determined
` to be above or equal
`continues at step 1520 in constant current charging mode 1500. At
`
`to the threhold at step 1030,
`
`the method
`
`step 1520, a constant current charge cycle, as described above in
`
`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-
`
`Huawei v. FISI Exhibit 1003 - 15/59
`
`

`

`such obvious variations are within the scope of the invention as
`described and claimed, whether or not expressly described.
`
`altWieMaal
`
`rs
`
`555255-012-132
`
`-14-
`
`Huawei v. FISI Exhibit 1003 - 16/59
`
`

`

`CLAIMS
`
`HEHell
`
`555255-012-132
`
`-15-
`
`Huawei v. FISI Exhibit 1003 - 17/59
`
`

`

`ABSTRACT
`
`Keful:Sa
`
`
`WeHtcevelthetieeaftase
`
`Hal
`
`eelUTS
`
`555255-012-132
`
`-16-
`
`Huawei v. FISI Exhibit 1003 - 18/59
`
`

`

`USBInterface Ee
`
`
`
`=
`
`ee
`
`itil
`
`iball
`
`“ie
`thi
`te
`
`[110
`
`[1-
`
`+
`
`Charging Circuit
`
`Battery
`
`140
`
`\,
`
`J
`
`|
`
`o
`
`L
`
`Figure 1
`
`§55255-012-132
`
`Huawei v. FISI Exhibit 1003 - 19/59
`
`

`

`(215,
`
`
`
`
`
` Micro Processor
`USB Interface
`
`
` Soft-Disconnect
`
`
`
`220 Charging Circuit
`
`
`prceeneeennneeeeeeneeemenennnmemersncecenenne=
`
`
`Set Power Level
`
`catbo
`
`Figure 2
`
`555255-012-132
`
`Huawei v. FISI Exhibit 1003 - 20/59
`
`

`

`Set Charge Power
`600
`
`to Minimum
`
`{610
`
`620
`
`Set Requested
`Powerto
`Maximum
`
`
`Soft-Connect to
`the USBus
`
`
`
`
`
`
`
`Wait for USB
`630
`Enumeration
`
`process
`
`
`
`
`
`
`Request Power
`when Enumerated
`
`
`by USB controller
`
`
`
` Alloted Power >=
`Requested Power
`
`
`
`650
`
`Yes
`
`No
`
`
`Set Charge Power
`to Requested
`
`Power
`
`
`
`
`Lower Requested |
`Power
`
`ere
`
`
`
`680
`
`Soft-disconnect
`
`
`Lo
`
`555255-012-132
`
`Figure 3
`
`Huawei v. FISI Exhibit 1003 - 21/59
`
`

`

`
`[aie
`
`
`
`ISENSE
`
`
`
`idltefc
`
`ii
`
`| Fras!
`
`L
`
`=Q°
`
`| Soe
`Switcher!
`LDO
`
`|
`
`vo er
`
`Core
`
`|
`
`Esker
`
`[738
`
`Microprocessor
`
`Figure 4
`
`555255-012-132
`
`Huawei v. FISI Exhibit 1003 - 22/59
`
`

`

`Voltage Compensation
`
`
`
`
`
`current —Terminal Valtage
`
`—— Charge Current
`
`
`
`900
`
`Wi |CPLPCree=
`
`
`
`
`
`time i
`
`Frown|eatiomeLs"Hew
`Sy?
`[1000
`[_1500fT
`
`Figure 5
`
`555255-012-132
`
`Huawei v. FISI Exhibit 1003 - 23/59
`
`

`

`Set Current to 0 [1020
`
`Sample Voltage +——J1030
`
`Constant Current
`
`Charging Cycle
`
`
`|
`
`Battery Voltage <
`Voltage Threhold?
`
`
`
`
`
`
`Approximately
`Constant Voltage
`Charging Cycle
`
`ee
`
`
`
`
`Set Current to 0 Battery Current >
`
`Sample Current
`
`
`
`
`1540
`
`Current Threshold ?
`
`[41550
`
`No
`
`End
`
`Figure 6
`
`555255-012-132
`
`Huawei v. FISI Exhibit 1003 - 24/59
`
`

`

`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 METHODFOR ADAPTINGA USB TO PROVIDE
`POWER FOR CHARGING A MOBILE DEVICE
`
`POWER OF ATTORNEY FOR PROVISIONAL APPLICATION
`
`
`
`
`
`
`Le
`
`Each inventor, identified above and signing below, hereby appoints each of the
`following as my attorneys with full power of substitution and revocation, to prosecute this
`application andto transact all business in the Patent and Trademark Office connectedtherewith:
`
`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. Haines II, 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, I, 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.
`
`Page 1 of 2
`
`Huawei v. FISI Exhibit 1003 - 25/59
`
`

`

`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 named attorney(s) and/or
`agents to accept and follow instructions from his/her representative(s).
`
`—
`
`Inventor(s)
`Daniel M.Fischer
`(0
`it
`Date: Fel
`Dan G. Radut
`Date: {+ 14/0
`Michael F. Habicher
`Date:
`‘4,
`2001 -
`
`200f Quang Luong
`Date: ©elpy»
`49
`o7 Jonathan Malton
` Date:
`
`
`
`
`
`
`Signature)
`WV Ly
`
`
`
`
`
`
`[6 /
`
`,
`
`
`LBL
`ALASa
`Fa
`
`Sete
`—LH)ff ao
`
`
`
`Page 2 of 2
`
`Huawei v. FISI Exhibit 1003 - 26/59
`
`

`

`|
`
`==
`
`=
`
`Confidential & Proprietary Information
`
`Preliminary Information
`
`VendorPart #:
`
`Project:
`ASIC Part #:
`Author:
`Date:
`Document:
`Vendor:
`
`Esker ASIC Specification
`ANA-03126-002
`Mike Habicher, mikeh@rim.net, x2207
`16-Feb-2001
`03126002, rev B
`
`Esker ASIC Specification
`sh ,
`= S274
`
`Researchin Motion,Ltd.
`
`295 Phillip Street
`Waterloo, ON N1S 4N2
`Canada
`
`Tel:
`Fax:
`
`+1519 888-7465
`+1 519 888-6906
`
`
`
`
`
`
`
`Copyright © 1999-2000, Research in Motion, Ltd.
`All Rights Reserved.
`OIIKNND Araft
`
`Page |
`Relar ASIOM Snoavifiratian
`
`Huawei v. FISI Exhibit 1003 - 27/59
`
`

`

`Confidential & Proprietary Information
`
`Preliminary Information
`
`1 Table of Contents
`
`tnftWoboo
`
`TABLE OF CONTENTS wweccsecccsscecesscssssesrsvenneneeessssscreeseesenesessnensnsenenseensonstasasesssssesenananaaaseensnensenenanaaaags 2
`
`LIST OF TABLES.......::0++:
`
`LIST OF FIGURES..........-++
`
`DOCUMENT HISTORY 0... .ecesessessscseseenenensteeatanees
`soe
`INTRODUCTION uu... ececssccesccsssessseseseseatsneneneusneneneoneoes
`5.1
`SCOPE ......cccssscccesssccensscccsssssccscesenssnnnenaussssuccesstuseneenacsnsrescnceseaeensrsesesessereesanecnmeansessouueesconuaauannaseies
`
`
`
`5.2
`
`53
`
`5.4
`
`TECHNICAL CONTACTS .....cccccccccssccssssssssescsesesescatanasanesasereveenenaeessnesersesnensescsesnasenesssssersensenasaesees 7
`
`BUNCTIONAT: DESCRIPTION |... <2.0steneance
`
`REBERENCES eseccersemercsrsesetereneanneeesnersbilGUATBR 7
`
`6
`
`REQUIREMENTS......cccccsceseceesssnssesesesessssseecsesseeaseeseeenssneesseeneanananssasneneesaensesenesessasenegneneneananenagaeeesey 8
`6.1
`GENERAL .o.ssccecesecesssnsesesessseeeseseusenscuusessserenenseansnauassnsaeaspanaeusansssyesnenerenenagamanegasynasenspenanessnegterenee 8
`
`Black Diagr00thscsermececreeenereereenri archi eRREaRRCREE B
`CLL
`Pin Descriptions .......ccsssssssssssssssesssessssnesessssssnsesecsssnecescesssnsssssessnnasessscennisessnananesessnssnnses D
`6.1.2
`G.1.3—PACKAGING ..scssssssssscsssseeseecccsnssercesnsovereecesssnsssscesssnacsensanteccessssnunasencennnsssessanevesrsnsnnnsersesses LZ
`6.1 ESD and Latch-Upecseseessessssssssssvscssecnserssersvessssesecsssnssssersessnstaseeanesstessessessassanseerssesenanones LB
`
`6.1.5—External COMpONCHES.cosseseccveecsereeeseeesereeecneeeecoesesneesecnsseeneeceenesesnessstesnnaensnnessssecsseeee LQ
`
`
`
`G.1.5.1 Magnetics ....ssesesssessssscnseseersesesesseesesessnssnenssesensasescenaesessrscsssrssteenensnenensacaeacseneness 12
`
`G15.2
`
` Capacitors....cecccccscsssssueecssseeesseesssessseeesnsssssvescsntesnsnesssvstessessemeesseeessnsessstessssenes LZ
`
`6.1.5.3
`
`ReSHStOLS .....ccecsceeescnscessssesesesessssssssssseunenserscesesseensesutsengatasssenoessonserneacsenerseesereeneads 12
`
`6.1.5.4 Other Devices (Transistors, etc.) ........esssescsesssescserssesnseserssesensennssseessesseretensecneres 12
`
`Input Power and Power Sequencing......ssccssssssssesssccsescsessesessnnsseecennmnersncessnncrsseennnnees 12
`6.1.6
`
`6.2—-_MODULES sesicississessiscssssniersstsssissescoesetensessavossvonssrsoveieastenitanssevsnnsnnaseiesscatansacvenensnseseneeasnanesatanengs 13
`
`6.2.1
`
`Battery Monitoring and Charge Control ....-.10..c0es-0s-sessssessesssssesseesnnensnneesnetsestssnessreens 1B
`
`6.2.1.1
`
`PALOBATOWNvscssisiesssavsisssteconsssesnassisadstacsanbisnaveasesneastsnsveennsianaessasssseseseessensaseesen 13
`
`6.2.2
`
`Reset Cartyoder .....cc.cecsccscssetecssctssssssensscecsatssssacsestesestscssessesscsanensnsnssonensnnanssacnsesanessuees 16
`
`623
`
` Randoap Referencesss:sssscuursorsesssestauren nataarsanianmnnnmmaeanT LD
`
`6.2.4 An