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`EXHIBIT D
`EXHIBIT D
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0001
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0001
`
`
`
`U.S. Patent No. 7,825,537 (“’537 Patent”)
`
`Accused Products
`Samsung products, including without limitation the Wireless Charger Portable Battery 10,000 mAh (EB-U1200), 25W
`Wireless Portable Battery (EB-U3300), Wireless Charger Stand (EP-NG930, EP-N5100, EP-N5105), Samsung Wireless Charger (EP-
`PA510, EP-PG920I, EPPN920, EP-P3100, EP-P1100, EP-P1300), Wireless Charger Pad 9W (EP-P3105), Fast Charge Wireless
`Charging Convertible (EP-PG950), Wireless Charger Stand 15W (EP-N5200), Convertible Wireless Charging Stand (EP-N3300),
`Wireless Charging Duo Pad (EP-P5200), Wireless Charger Duo (EP-N6100, EP-P4300), Wireless Charger Tray (EP-PA710),
`Wireless Charger Trio (EP-P6300), Wireless Charging Vehicle Dock (EP-HN910I), UV Sanitizer With Wireless Charging (GP-
`TOU020), Samsung Watches sold with a wireless charger (including but not limited to Galaxy Watch, Galaxy Watch 3, Galaxy Watch
`4, Galaxy Watch Active, Galaxy Active 2), and all Samsung Wireless Chargers and Charging Docks for the Galaxy Watch (including
`but not limited to any chargers sold with or as an accessory to the Galaxy Watch, Galaxy Watch 3, Galaxy Watch 4, Galaxy Watch
`Active, Galaxy Active 2, EP-OR825, and EP-Y0805) (“Accused Products”), infringe at least Claims 1, 2, 3, 4, 5, 9, 10, 11, 12, 13, 14,
`15, 16, 20, 21, 22, and 28 of the ’537 Patent.
`
`Claim 1
`
`Claim 1
`[1pre] A method for
`inductively transferring power
`from a base unit providing
`input power, to a target unit
`providing output power, where
`the base unit and the target
`unit are electrically isolated,
`comprising:
`
`Accused Products
`To the extent the preamble is limiting, each Accused Product practices a method for inductively
`transferring power from a base unit providing input power, to a target unit providing output
`power, where the base unit and the target unit are electrically isolated.
`
`
`
`1
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0002
`
`
`
`Claim 1
`
`See, e.g.:
`
`Accused Products
`
`Target unit
`
`Base unit
`
`Photograph of the Samsung Galaxy Watch4 showing the base unit and an electrically isolated
`target unit while inductively transferring power.
`
`
`
`2
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0003
`
`
`
`Claim 1
`
`Accused Products
`
`[1a] positioning a second
`inductive element of said
`target unit within a
`predetermined distance of a
`first inductive element of said
`base unit;
`
`Photograph of the base unit for the exemplary Samsung Galaxy Watch4 showing it is electrically
`isolated from the target unit.
`Each Accused Product comprises positioning a second inductive element of said target unit within
`a predetermined distance of a first inductive element of said base unit.
`For example, the exemplary Samsung Galaxy Watch4 includes a coil comprising the first
`inductive element of the base unit and a coil comprising the second inductive element of the target
`unit.
`
`
`
`3
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0004
`
`
`
`Claim 1
`
`Accused Products
`For example, the base unit of the exemplary Samsung Galaxy Watch4 has a concavely curved
`covering, and the target unit has a complementary convexly curved covering. Furthermore, the
`base unit and target unit contain permanent magnets that together with the curved coverings
`position the second inductive element within a predetermined distance of the first inductive
`element.
`See, e.g.:
`
`Photograph of the base unit for the exemplary Samsung Galaxy Watch4 showing a concavely
`curved covering.
`
`
`
`4
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0005
`
`
`
`Claim 1
`
`Accused Products
`
`Magnet
`
`First inductive element
`
`Photograph of the base unit from the exemplary Samsung Galaxy Watch4 showing the coil
`comprising the first inductive element and a permanent magnet after the covering is removed.
`
`
`
`5
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0006
`
`
`
`Claim 1
`
`Accused Products
`
`Photograph of the target unit from the exemplary Samsung Galaxy Watch4 showing a convexly
`curved covering.
`
`
`
`6
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0007
`
`
`
`Claim 1
`
`Accused Products
`
`Magnet
`
`Second
`inductive
`element
`
`X-ray of the target unit from the exemplary Samsung Galaxy Watch4 showing the coil comprising
`the second inductive unit and a permanent magnet.
`
`
`
`7
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0008
`
`
`
`Claim 1
`
`Accused Products
`
`Target unit
`
`Base unit
`
`Photograph of the Samsung Galaxy Watch4 showing how the attraction of permanent magnets and
`the coverings of the target unit and base unit position the second inductive element of the target
`unit within a predetermined distance of the first inductive element of the base unit.
`Each Accused Product comprises applying a time varying electric current to said first inductive
`element to produce a time varying magnetic field, said time varying magnetic field induces an
`electric current in said second inductive element.
`See, e.g.:
`
`[1b] applying a time varying
`electric current to said first
`inductive element to produce a
`time varying magnetic field,
`said time varying magnetic
`field induces an electric
`current in said second
`inductive element;
`
`
`
`8
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0009
`
`
`
`Claim 1
`
`Accused Products
`
`Oscilloscope measurement of the time varying electric current in the first inductive element from
`the exemplary Samsung Galaxy Watch4.
`
`
`
`9
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0010
`
`
`
`Claim 1
`
`Accused Products
`
`[1c] monitoring at least one
`parameter indicative of an
`efficiency of power transfer
`from said base unit to said
`target unit:
`
`H-probe and oscilloscope measurement of the time varying magnetic field produced by the
`electric current in the first inductive element from the exemplary Samsung Galaxy Watch4. The
`time varying magnetic field induces an electric current in the second inductive element.
`Each Accused Product comprises monitoring at least one parameter indicative of an efficiency of
`power transfer from said base unit to said target unit.
`For example, the exemplary Samsung Galaxy Watch4 includes a controller integrated circuit
`(“IC”) connected to the first inductive element, which monitors parameters such as voltage and/or
`current in the first or second inductive elements that are indicative of power transfer efficiency.
`
`
`
`10
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0011
`
`
`
`Claim 1
`
`Accused Products
`
`See, e.g.:
`
`Controller
`
`To first inductive element
`
`[1d] automatically adjusting at
`least one characteristic of said
`time varying electric current
`responsive to said parameter to
`
`
`
`Photograph of the PCB in the base unit from the exemplary Samsung Galaxy Watch4 showing the
`controller IC and leads to the first inductive element.
`Each Accused Product comprises automatically adjusting at least one characteristic of said time
`varying electric current responsive to said parameter to maximize an efficiency of power transfer
`from said base unit to said target unit.
`
`11
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0012
`
`
`
`Claim 1
`maximize an efficiency of
`power transfer from said base
`unit to said target unit.
`
`Accused Products
`For example, the exemplary Samsung Galaxy Watch4 includes a set of four MOSFET switching
`elements that receive control signals from the controller IC in order to configure the amplitude and
`frequency characteristics of the time varying current in the first inductive element.
`For example, using an oscilloscope, the amplitude and frequency characteristics of the time
`varying electric current in the first inductive element of the exemplary Samsung Galaxy Watch4
`were measured. As a small 3 mm gap was introduced between the target unit and base unit, the
`amplitude and frequency were observed to change, which suggests that they were automatically
`adjusted by the controller IC to maximize power transfer efficiency.
`See, e.g.:
`
`
`
`12
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0013
`
`
`
`Claim 1
`
`Accused Products
`
`Controller
`
`To first inductive element
`
`Switching elements
`Photograph of the PCB from the base unit from the exemplary Samsung Galaxy Watch4 showing
`the MOSFET switching elements that receive control signals from the controller IC in order to set
`the amplitude and frequency of the time varying current in the first inductive element.
`
`
`
`13
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0014
`
`
`
`Claim 1
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when the target unit is in direct contact. The peak-to-peak amplitude (10.3 V) and frequency
`(140 kHz) are different compared to when a 3 mm gap is introduced.
`
`
`
`14
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0015
`
`
`
`Claim 1
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when a 3 mm gap is introduced separating the target unit. The peak-to-peak amplitude (19.4
`V) and frequency (111 kHz) change compared to when no gap is present, which suggests an
`automatic adjustment to improve power transfer efficiency.
`
`
`
`
`
`15
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0016
`
`
`
`Claim 2
`
`Claim 2
`The method according to claim
`1, wherein said characteristic
`comprises at least one of a
`frequency of said time varying
`current and a duty cycle of
`said time varying current.
`
`Accused Products
`In each Accused Product, the method according to claim 1 has said characteristic comprising at
`least one of a frequency of said time varying current and a duty cycle of said time varying current.
`For example, using an oscilloscope, the frequency of the time varying electric current in the first
`inductive element of the exemplary Samsung Galaxy Watch4 was measured. As a small 3 mm
`gap was introduced between the target unit and base unit, the frequency was observed to change,
`which suggests that the frequency is a characteristic automatically adjusted by the controller IC to
`maximize power transfer efficiency.
`See, e.g.:
`
`
`
`16
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0017
`
`
`
`Claim 2
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when the target unit is in direct contact. The frequency (140 kHz) is different compared to
`when a 3 mm gap is introduced.
`
`
`
`17
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0018
`
`
`
`Claim 2
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when a 3 mm gap is introduced separating the target unit. The frequency (111 kHz) changes
`compared to when no gap is present, which suggests it is a characteristic automatically adjusted to
`improve power transfer efficiency.
`
`
`
`
`
`18
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0019
`
`
`
`Claim 3
`
`Claim 3
`The method according to claim
`1, further comprising
`producing said time varying
`electric current by switching a
`DC voltage source using an
`electronically controlled
`switch element.
`
`Accused Products
`In each Accused Product, the method according to claim 1 further comprises producing said time
`varying electric current by switching a DC voltage source using an electronically controlled
`switch element.
`See, e.g.:
`
`
`
`19
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0020
`
`
`
`Claim 3
`
`Accused Products
`
`Controller
`
`To first inductive element
`
`Switching elements
`Photograph of the PCB of the base unit from the exemplary Samsung Galaxy Watch4 showing the
`four MOSFET switching elements that produce the time varying electric current by switching a
`DC voltage source.
`
`
`
`20
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0021
`
`
`
`Claim 4
`
`Claim 4
`The method according to claim
`3, further comprising
`communicating said time
`varying electric current to a
`load in said base unit, and
`selecting said parameter to be
`a measured current or voltage
`associated with said load.
`
`Accused Products
`In each Accused Product, the method according to claim 3 further comprises communicating said
`time varying electric current to a load in said base unit, and selecting said parameter to be a
`measured current or voltage associated with said load.
`See, e.g.:
`
`
`
`21
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0022
`
`
`
`Claim 4
`
`Accused Products
`
`Controller
`
`To first inductive element
`
`Load
`
`Switching elements
`Photograph of the PCB from the base unit from the exemplary Samsung Galaxy Watch4 showing
`a load proximal to the controller and first inductive element, which suggests that the time varying
`electric current in the first inductive element communicates with the load and that the controller
`measures the load’s current or voltage.
`
`
`
`22
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0023
`
`
`
`Claim 5
`
`Claim 5
`The method according to claim
`4, further comprising
`comparing said measured
`current or voltage to a constant
`reference value.
`
`Accused Products
`In each Accused Product, the method according to claim 4 further comprises comparing said
`measured current or voltage to a constant reference value.
`For example, over-current protection is a feature of base units that inductively transfer power to
`the target unit of the exemplary Samsung Galaxy Watch4, such as the Samsung Wireless Charger
`Duo Pad. Over-current protection suggests that current measured on a load is compared to a
`constant reference value in order to switch off power transfer above a limiting value.
`See, e.g.:
`
`Image of the Samsung Wireless Charger Duo Pad, which also acts as a base unit for inductively
`transferring power to the target unit of the exemplary Samsung Galaxy Watch4. Source:
`https://www.samsung.com/us/mobile/mobile-accessories/phones/wireless-charger-duo-pad-black-
`ep-p5200tbegus/
`
`
`
`23
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0024
`
`
`
`
`
`
`
`24
`
`Load
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0025
`
`
`
`Claim 5
`
`Accused Products
`Excerpt from the datasheet for the Renesas P923x series wireless power transmitter controller
`used by the Samsung Wireless Charger Duo Pad. The controller uses over-current protection by
`comparing current measured on a sensing load to a current limit value. Source:
`https://www.renesas.com/us/en/document/dst/p9235a-rb-datasheet?r=462291
`
`Claim 9
`
`Claim 9
`The method according to claim
`1, further comprising
`responsive to a re-positioning
`of said second inductive
`element from a first position to
`a second position,
`automatically selectively re-
`adjusting said characteristic to
`maximize said efficiency,
`wherein said first position
`differs from said second
`position with regard to at least
`one characteristic selected
`from the group consisting of
`distance and orientation
`relative to said first inductive
`element.
`
`Accused Products
`In each Accused Product, the method according to claim 1 is responsive to a re-positioning of said
`second inductive element from a first position to a second position, automatically selectively re-
`adjusting said characteristic to maximize said efficiency, wherein said first position differs from
`said second position with regard to at least one characteristic selected from the group consisting of
`distance and orientation relative to said first inductive element.
`For example, using an oscilloscope, the amplitude and frequency characteristics of the time
`varying electric current in the first inductive element of the exemplary Samsung Galaxy Watch4
`were measured in response to repositioning of the distance of the second inductive element to the
`first inductive element. As the distance was increased to produce a 3 mm gap, the amplitude and
`frequency were observed to change, which suggests that they were automatically adjusted by the
`controller IC to maximize power transfer efficiency.
`See, e.g.:
`
`
`
`25
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0026
`
`
`
`Claim 9
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when the target unit is in direct contact. The peak-to-peak amplitude (10.3 V) and frequency
`(140 kHz) are different compared to when a 3 mm gap is introduced.
`
`
`
`26
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0027
`
`
`
`Claim 9
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when a 3 mm gap is introduced separating the target unit. The peak-to-peak amplitude (19.4
`V) and frequency (111 kHz) change compared to when no gap is present, which suggests an
`automatic adjustment to improve power transfer efficiency.
`
`
`
`27
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0028
`
`
`
`Claim 10
`
`Claim 10
`The method according to claim
`1, further comprising
`responsive to a substitution of
`a target unit with a different
`target unit, automatically
`selectively re-adjusting said
`characteristic to maximize said
`efficiency.
`
`Accused Products
`In each Accused Product, the method according to claim 1 is responsive to a substitution of a
`target unit with a different target unit, automatically selectively re-adjusting said characteristic to
`maximize said efficiency.
`For example, the base unit is sold separately from the target unit for the exemplary Samsung
`Galaxy Watch4 and may also be used to transfer power to different target units such as the
`Samsung Galaxy Watch Active2. This suggests that target units are interchangeable for a given
`base unit and that the same adjustment of amplitude and frequency characteristics that occurs for
`one target unit will also occur for a different target unit.
`See, e.g.:
`
`
`
`28
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0029
`
`
`
`Claim 10
`
`Accused Products
`Image of the base unit of the exemplary Samsung Galaxy Watch4 sold individually. Source:
`https://www.samsung.com/us/mobile/mobile-accessories/smartwatches/galaxy-watch-active2-
`charging-dock-ep-or825bbeguj/
`
`
`Image of the base unit used to transfer power to the target unit of the Samsung Galaxy Watch
`Active2. Source: https://www.samsung.com/us/mobile/mobile-accessories/smartwatches/galaxy-
`watch-active2-charging-dock-ep-or825bbeguj/
`
`
`
`29
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0030
`
`
`
`Claim 11
`
`Claim 11
`The method according to claim
`1, further comprising
`rectifying an output current
`induced in said second
`inductive element to produce a
`DC output.
`
`Accused Products
`In each Accused Product, the method according to claim 1 further comprises rectifying an output
`current induced in said second inductive element to produce a DC output.
`For example, wireless power transfer to the target unit of the exemplary Samsung Galaxy Watch4
`is used to charge a battery. Since batteries require a DC input, this suggests that the output current
`in the second inductive element is rectified to produce a DC output for the battery.
`See, e.g.:
`
`
`
`30
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0031
`
`
`
`Claim 11
`
`Accused Products
`
`Image of the battery from the target unit of the exemplary Samsung Galaxy Watch4 that requires a
`DC voltage input.
`
`Claim 12
`
`Claim 12
`[12pre] An inductive power
`transfer system, comprising:
`
`Accused Products
`To the extent the preamble is limiting, each Accused Product includes an inductive power transfer
`system.
`
`
`
`31
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0032
`
`
`
`Claim 12
`
`See, e.g.:
`
`Accused Products
`
`[12a] a base unit comprising a
`first inductive element
`configured for providing input
`power to a second inductive
`element of a target unit
`providing output power, said
`base unit electrically isolated
`from said target unit;
`
`Photograph of the Samsung Galaxy Watch4 while inductively transferring power.
`Each Accused Product includes a base unit comprising a first inductive element configured for
`providing input power to a second inductive element of a target unit providing output power, said
`base unit electrically isolated from said target unit.
`For example, the base unit of the exemplary Samsung Galaxy Watch4 includes a coil, which
`comprises the first inductive element and provides output power to the second inductive element
`of the target unit.
`
`
`
`32
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0033
`
`
`
`Claim 12
`
`Accused Products
`For example, the target unit of the exemplary Samsung Galaxy Watch4 includes a coil comprising
`the second inductive element and is electrically isolated from the base unit.
`See, e.g.:
`
`Photograph of the base unit from the exemplary Samsung Galaxy Watch4 showing that it is
`electrically isolated from the target unit.
`
`
`
`33
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0034
`
`
`
`Photograph of the target unit from the exemplary Samsung Galaxy Watch4.
`
`
`
`34
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0035
`
`
`
`Claim 12
`
`Accused Products
`
`Photograph of the base unit from the exemplary Samsung Galaxy Watch4 showing the coil
`comprising the first inductive element (red).
`
`First
`inductive
`element
`
`
`
`35
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0036
`
`
`
`Claim 12
`
`Accused Products
`
`Second
`inductive
`element
`
`X-ray of the coil comprising the second inductive unit in the target unit from the exemplary
`Samsung Galaxy Watch4.
`Each Accused Product comprises a positioning structure provided on at least one of said base unit
`and said target unit for removably positioning said second inductive element at a predetermined
`orientation and distance relative to said first inductive element.
`
`36
`
`[12b] a positioning structure
`provided on at least one of said
`base unit and said target unit
`for removably positioning said
`second inductive element at a
`predetermined orientation and
`
`
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0037
`
`
`
`Claim 12
`distance relative to said first
`inductive element;
`
`Accused Products
`For example, the base unit of the exemplary Samsung Galaxy Watch4 has a concavely curved
`covering, and the target unit has a complementary convexly curved covering. Furthermore, the
`base unit and target unit contain permanent magnets that together with the curved coverings
`position the second inductive element at a predetermined orientation and distance relative to the
`first inductive element.
`See, e.g.:
`
`Photograph of the base unit from the exemplary Samsung Galaxy Watch4 showing a concavely
`curved covering forming part of a positioning structure.
`
`
`
`37
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0038
`
`
`
`Claim 12
`
`Accused Products
`
`Photograph of the target unit from the exemplary Samsung Galaxy Watch4 showing a convexly
`curved covering forming part of a positioning structure.
`
`
`
`38
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0039
`
`
`
`Claim 12
`
`Accused Products
`
`Photograph of the base unit of the exemplary Samsung Galaxy Watch4 after the covering is
`removed showing a permanent magnet that forms part of a positioning structure.
`
`Magnet
`
`
`
`39
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0040
`
`
`
`Claim 12
`
`Accused Products
`
`X-ray of the target unit of the exemplary Samsung Galaxy Watch4 showing a permanent magnet
`that forms part of a positioning structure.
`
`Magnet
`
`
`
`40
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0041
`
`
`
`Claim 12
`
`Accused Products
`
`Photograph of the base unit and target unit of the exemplary Samsung Galaxy Watch4 showing
`how the positioning structure positions the second inductive element at a predetermined
`orientation and distance relative to the first inductive element.
`Each Accused Product comprises a switch element configured for selectively applying a time
`varying electric current to said first inductive element to produce a time varying magnetic field,
`said time varying magnetic field inducing an electric current in said second inductive element.
`
`41
`
`[12c] a switch element
`configured for selectively
`applying a time varying
`electric current to said first
`inductive element to produce a
`time varying magnetic field,
`said time varying magnetic
`field inducing an electric
`current in said second
`inductive element; and
`
`
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0042
`
`
`
`Claim 12
`
`See, e.g.:
`
`Accused Products
`
`To first inductive element
`
`Switching elements
`Photograph of the PCB in the base unit showing four MOSFETs from the exemplary Samsung
`Galaxy Watch4. The MOSFETs are switching elements that selectively apply a time varying
`electric current to the first inductive element.
`
`
`
`
`42
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0043
`
`
`
`Claim 12
`
`Accused Products
`
`Oscilloscope measurement of the time varying electric current in the first inductive element of the
`base unit from the exemplary Samsung Galaxy Watch4.
`
`
`
`43
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0044
`
`
`
`Claim 12
`
`Accused Products
`
`H-probe and oscilloscope measurement of the time varying magnetic field produced by the
`electric current in the first inductive element from the exemplary Samsung Galaxy Watch4. The
`time varying magnetic field induces an electric current in the second inductive element.
`Each Accused Product comprises a control circuit configured for monitoring at least one
`parameter indicative of an efficiency of power transfer from said base unit to said target unit, and
`automatically adjusting at least one characteristic of said time varying electric current responsive
`to said parameter to maximize an efficiency of power transfer from said base unit to said target
`unit.
`
`44
`
`[12d] a control circuit
`configured for monitoring at
`least one parameter indicative
`of an efficiency of power
`transfer from said base unit to
`said target unit, and
`automatically adjusting at least
`
`
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0045
`
`
`
`Claim 12
`one characteristic of said time
`varying electric current
`responsive to said parameter to
`maximize an efficiency of
`power transfer from said base
`unit to said target unit.
`
`Accused Products
`For example, the exemplary Samsung Galaxy Watch4 includes an IC connected to the switching
`elements and first inductive element, which suggests it is a controlling circuit and monitors
`parameters such as voltage or current in the first or second inductive elements that are indicative
`of power transfer efficiency.
`For example, using an oscilloscope, the amplitude and frequency characteristics of the time
`varying electric current in the first inductive element of the base unit from the exemplary Samsung
`Galaxy Watch4 were measured. As a small 3 mm gap was introduced between the target unit and
`base unit, the amplitude and frequency were observed to change, which suggests that they were
`automatically adjusted by the control circuit to maximize power transfer efficiency.
`See, e.g.:
`
`
`
`45
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0046
`
`
`
`Claim 12
`
`Accused Products
`
`Control circuit
`
`To first inductive element
`
`Switching elements
`Photograph of the PCB in the base unit of exemplary Samsung Galaxy Watch4 showing the IC
`forming the control circuit.
`
`
`
`46
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0047
`
`
`
`Claim 12
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when the target unit is in direct contact. The peak-to-peak amplitude (10.3 V) and frequency
`(140 kHz) are different compared to when a 3 mm gap is introduced.
`
`
`
`47
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0048
`
`
`
`Claim 12
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when a 3 mm gap is introduced separating the target unit. The peak-to-peak amplitude (19.4
`V) and frequency (111 kHz) change compared to when no gap is present, which suggests an
`automatic adjustment to improve power transfer efficiency.
`
`Accused Products
`In each Accused Product, the system of claim 12 has said characteristic comprising at least one of
`a frequency of said time varying current and a duty cycle of said time varying current.
`
`48
`
`Claim 13
`
`Claim 13
`The system of claim 12,
`wherein said characteristic
`comprises at least one of a
`
`
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0049
`
`
`
`Claim 13
`frequency of said time varying
`current and a duty cycle of
`said time varying current.
`
`Accused Products
`For example, using an oscilloscope, the frequency of the time varying electric current in the first
`inductive element of the exemplary Samsung Galaxy Watch4 was measured. As a small 3 mm
`gap was introduced between the target unit and base unit, the frequency was observed to change,
`which suggests that the frequency is a characteristic automatically adjusted by the controller IC to
`maximize power transfer efficiency.
`See, e.g.:
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when the target unit is in direct contact. The frequency (140 kHz) is different compared to
`when a 3 mm gap is introduced.
`
`
`
`49
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0050
`
`
`
`Claim 13
`
`Accused Products
`
`Oscilloscope measurements of the time varying current in the first inductive element of the base
`unit when a 3 mm gap is introduced separating the target unit. The frequency (111 kHz) changes
`compared to when no gap is present, which suggests it is a characteristic automatically adjusted to
`improve power transfer efficiency.
`
`
`
`50
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0051
`
`
`
`Claim 14
`
`Claim 14
`The system of claim 12,
`wherein said switch element is
`electronically controlled, and
`wherein said switch element is
`configured for coupling and
`decoupling a DC voltage
`source to said first inductive
`element to produce said time
`varying current.
`
`Accused Products
`In each Accused Product, system of claim 12 has said switch element electronically controlled,
`and wherein said switch element is configured for coupling and decoupling a DC voltage source to
`said first inductive element to produce said time varying current.
`See, e.g.:
`
`
`
`51
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0052
`
`
`
`Claim 14
`
`Accused Products
`
`Controller
`
`To first inductive element
`
`Switching elements
`Photograph of the PCB of the base unit from the exemplary Samsung Galaxy Watch4 showing the
`controller and four MOSFET switching elements that produce the time varying electric current in
`the first inductive element by coupling and decoupling a DC voltage source.
`
`
`
`52
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0053
`
`
`
`Claim 15
`
`Claim 15
`The system of claim 14,
`further comprising a load
`circuit coupled to said first
`inductive element, and where
`said parameter comprises a
`current or voltage associated
`with said load.
`
`Accused Products
`In each Accused Product, the system of claim 14 further comprises a load circuit coupled to said
`first inductive element, and where said parameter comprises a current or voltage associated with
`said load.
`See, e.g.:
`
`
`
`53
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0054
`
`
`
`Claim 15
`
`Accused Products
`
`Controller
`
`To first inductive element
`
`Load
`
`Switching elements
`Photograph of the PCB from the base unit from the exemplary Samsung Galaxy Watch4 showing
`a load proximal to the controller and first inductive element, which suggests that the first inductive
`element is coupled to the load and that the controller measures the load’s current or voltage.
`
`
`
`54
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0055
`
`
`
`Claim 16
`
`Claim 16
`The system of claim 15,
`wherein said control circuit
`automatically selectively
`adjusts said characteristic
`based on a comparison of said
`measured current or voltage to
`a constant reference value.
`
`Accused Products
`In each Accused Product, the system of claim 15 has said control circuit automatically selectively
`adjust said characteristic based on a comparison of said measured current or voltage to a constant
`reference value.
`For example, over-current protection is a feature of base units that inductively transfer power to
`the target unit of the exemplary Samsung Galaxy Watch4, such as the Samsung Wireless Charger
`Duo Pad. Over-current protection suggests that current measured on a load is compared to a
`constant reference value in order to adjust the amplitude of the time varying current so that it does
`not exceed a given threshold.
`See, e.g.:
`
`
`
`55
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0056
`
`
`
`Claim 16
`
`Accused Products
`Image of the Samsung Wireless Charger Duo Pad, which also acts as a base unit for inductively
`transferring power to the target unit of the exemplary Samsung Galaxy Watch4. Source:
`https://www.samsung.com/us/mobile/mobile-accessories/phones/wireless-charger-duo-pad-black-
`ep-p5200tbegus/
`
`
`
`56
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0057
`
`
`
`
`
`
`
`57
`
`Load
`
`GOOGLE AND SAMSUNG EXHIBIT 1016, 0058
`
`
`
`Claim 16
`
`Accused Products
`Excerpt from the datasheet for the Renesas P923x series wireless power transmitter controller
`used by the Samsung Wireless Charger Duo Pad. The controller uses over-current protection by
`comparing current measured on a sensing load to a current limit value. Source:
`https://www.renesas.com/us/en/document/dst/
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