Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 1 of 28
`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 1 of 28
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`EXHIBIT B
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`EXHIBIT B
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 1 of 28
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`EXHIBIT B
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`EXHIBIT B
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 2 of 28
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`Charted Claims:
`Method Claims: 1
`Non-Method Claims:
`US6819539
`1. A method for circuit recovery
`from overstress conditions,
`comprising the steps of:
`
`HTC U11 (“The Accused Product”)
`The accused product discloses a method for circuit recovery from overstress conditions (e.g., deviation of
`voltage from its normal values).
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`As shown below, the HTC U11 utilizes a Qualcomm Snapdragon 835 processor.
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 3 of 28
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`https://web.archive.org/web/20180226131131/http://www.htc.com/us/smartphones/htc-
`u11/buy#!carrier=unlocked&color=red
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`https://www.htc.com/us/smartphones/htc-u11/
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 4 of 28
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`https://www.gsmarena.com/htc_u11-8630.php
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`As shown below, the Snapdragon 835 includes a battery monitoring circuit that generates a signal based
`upon the occurrence of a certain condition (in this case voltage variances for normal values).
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`https://www.qualcomm.com/products/snapdragon-835-mobile-platform
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 5 of 28
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`https://www.qualcomm.com/media/documents/files/snapdragon-835-mobile-platform-product-brief.pdf
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 6 of 28
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`https://pastebin.com/U0i7nP4P
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 7 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`(A) detecting an event;
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-asus-3.10-nougat-mr1-wear-
`release/include/linux/qpnp/qpnp-adc.h
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`The accused product discloses detecting an event (e.g., detecting if state is high or low).
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 8 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 9 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 10 of 28
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`As shown below, the Snapdragon 835 includes a battery monitoring circuit that generates a signal based
`upon the occurrence of a certain condition (in this case voltage variances from normal values).
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`https://www.qualcomm.com/products/snapdragon-835-mobile-platform
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`https://www.qualcomm.com/media/documents/files/snapdragon-835-mobile-platform-product-brief.pdf
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 11 of 28
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`https://pastebin.com/U0i7nP4P
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 12 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`(B) storing said event;
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-asus-3.10-nougat-mr1-wear-
`release/include/linux/qpnp/qpnp-adc.h
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`The accused product discloses storing (e.g., storing in L2 cache) said event (e.g., if state is high or low).
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`As shown below, the Snapdragon 835 includes an L2 cache that stores voltage variance events.
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 13 of 28
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`https://www.androidauthority.com/qualcomm-details-snapdragon-835-735688/
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 14 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 15 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 16 of 28
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`(C) comparing said stored event
`to a plurality of event types
`stored in a table to determine if
`said event is a first
`predetermined type or a second
`predetermined type; and
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`The accused product discloses comparing said stored event to a plurality of event types (e.g., the comparison
`of collected values with stored thresholds) stored in a table (e.g., a table containing various thresholds) to
`determine if said event is a first predetermined type (e.g., when bcl_soc_state == BCL_LOW_THRESHOLD
`OR bcl_vph_state == BCL_LOW_THRESHOLD) or a second predetermined type (e.g., when bcl_soc_state
`is not equal to BCL_LOW_THRESHOLD, bcl_vph_state is not equal to BCL_LOW_THRESHOLD and
`bcl_ibat_state is not equal to BCL_HIGH_THRESHOLD).
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`https://android.googlesource.com/kernel/msm/+/android-7.1.0_r0.2/Documentation/arm/msm/rpm.txt
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 17 of 28
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`https://www.slideshare.net/linaroorg/lcu14-210-qualcomm-snapdragon-power-management-unique-
`challenges-for-power-frameworks
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 18 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 19 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 20 of 28
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`https://pastebin.com/U0i7nP4P
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`Threshold Values from the table (dtsi) are imported into the battery_current_limit module thru a record data
`type (bcl).
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 21 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`The values of the table are now inside the record, bcl. The State of Charge low threshold is saved in a variable
`soc_low_threshold.
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 22 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/include/linux/msm_bcl.h
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 23 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`The new values of bcl_vph_state and bcl_ibat_state are compared against the threshold values from the
`table.
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 24 of 28
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`(D) resetting a device when said
`event is a said first
`predetermined type and
`providing recovery when said
`event is a said second
`predetermined type.
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`The accused product discloses resetting (e.g., cpu_down) a device when said event is a said first
`predetermined type (e.g., when bcl_soc_state == BCL_LOW_THRESHOLD OR bcl_vph_state ==
`BCL_LOW_THRESHOLD) and providing recovery (e.g., cpu_up) when said event is a said second
`predetermined type (e.g., when bcl_soc_state is not equal to BCL_LOW_THRESHOLD, bcl_vph_state is
`not equal to BCL_LOW_THRESHOLD and bcl_ibat_state is not equal to BCL_HIGH_THRESHOLD).
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`https://android.googlesource.com/kernel/msm/+/android-7.1.0_r0.2/Documentation/arm/msm/rpm.txt
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 25 of 28
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`https://www.slideshare.net/linaroorg/lcu14-210-qualcomm-snapdragon-power-management-unique-
`challenges-for-power-frameworks
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 26 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 27 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/include/linux/msm_bcl.h
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`Case 2:20-cv-01850 Document 1-2 Filed 12/28/20 Page 28 of 28
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`https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-
`nougat/drivers/power/battery_current_limit.c
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