`
`
`
`
`
`
`
`
`
`
`
`CERTIFICATE OF TRANSLATION ACCURACY
`
`I am a professional reviewer and coordinator specializing in translating Chinese,
`Japanese and Korean to English and vice versa.
`
`I served as Chief Examiner of the certified court interpreter test for the State of
`California and as a translator and interpreter for various federal agencies through the U.S.
`Department of State of for more than a decade. I served as an instructor at the University
`of California at Berkeley and the Middlebury Institute of International Studies at
`Monterey.
`
`I have more than 30 years of experience translating thousands of technical, legal,
`and business submitted to, among others, Korean judicial authorities, various U.S. federal
`courts, the U.S. International Trade Commission (ITC), and the USPTO Patent Trial and
`Appeal Board (PTAB).
`
`I certify that the following document translated from Japanese into the English
`language is a true, correct, and complete translation of the corresponding source text to
`the best of my knowledge and ability.
`
`I certify under penalty of perjury that the foregoing is true and correct.
`
`Executed this 12th day of July 2023 in the Contra Costa County of the State of
`California.
`
`By:
`
`
`
`
`
`Alex N. Jo
`Member, ATA
`
`Petitioner Samsung Ex-1016, 0001
`
`

`

`(19) China National Intellectual Property Administration
`
`(12) Invention Patent
`
`(10) Publication No.: CN 101458557 B
`(45) Publication Date: Dec. 15, 2010
`
`Examiner: Wang Liang
`
`(21) Appl. No.: 200710300997.2
`(22) Filed: Dec. 14, 2007
`(73) Patentee: HTC Corporation
`Address: No. 23, Xinghua Road, Guishan
`Industrial Park, Taoyuan City,
`Taiwan, China
`(72) Inventor: Qin Zhenghao
`(74) Agent or Attorney: Shanghai Patent & Trademark Law Office, LLC
`Law Office 31100
`
`Agent: Liang Chen
`(51) Int. Cl.
`G06F 1/32 (2006. 01)
`(56) Reference Documents
`KR 10-2005-0004535 A, Jan. 12, 2005,
`entire content;
`JP 2007-281864 A, Oct. 25, 2007,
`Paragraphs 0023-0042 of the
`specification and FIGS. 1-8;
`CN 1372752 A, Oct. 02, 2002,
`entire content
`
`
`
`
`
`
`
`
`
`
`
`1 page of Claims, 5 pages of Specification, 4 pages of Attached Drawings
`
`(54) Title of the Invention
`POWER MANAGEMENT METHOD FOR HANDHELD ELECTRONIC DEVICE
`(57) Abstract
`The invention discloses a power management method for
`a handheld electronic device, which uses a gravity sensor (G-
`sensor) to detect the normal vector in the plane of the handheld
`electronic device and determine whether the normal vector is
`facing downward. In a power saving mode, the gravity sensor
`continues to detect the normal vector, and when the normal
`vector deviates from the downward direction, the handheld
`electronic device is controlled to return to a normal operation
`mode. Accordingly, according to a placement state of the device,
`the handheld electronic device is controlled in time to enter the
`power saving mode, without complicated procedures such as
`menu operations, etc., thus providing a more intuitive and
`convenient power management approach.
`
`CN 101458557 B
`
`Petitioner Samsung Ex-1016, 0002
`
`

`

`CN 101458557 B
`
`
`
`Claims
`
`Page 1/1
`
`
`
`1. A power management method for a handheld electronic device, comprising the steps of:
`detecting a normal vector in a plane of the handheld electronic device using a gravity sensor;
`determining whether the normal vector is facing downward; and
`if the normal vector is facing downward, determining whether a state of the normal vector
`facing downward is maintained for more than a first specific time; and
`when the state of the normal vector facing downward is maintained for more than the first
`specific time, controlling the handheld electronic device to enter a power saving mode.
`2. The method according to claim 1, wherein the plane of the handheld electronic device is
`a plane containing a screen of the handheld electronic device when the handheld electronic device
`is placed horizontally.
`3. The method according to claim 1, wherein the handheld electronic device is a flip
`handheld electronic device, and the plane of the handheld electronic device is an upper cover
`containing a screen of the handheld electronic device.
`4. The method according to claim 1, wherein the normal vector comprises an x-component,
`a y-component and a z-component.
`6. The method according to claim 4, wherein the step of determining whether the normal
`vector is facing downward comprises:
`determining whether the z-component of the normal vector is negative and its x-component
`and y-component each falls in a specific range; and
`when the z-component of the normal vector is negative and both its x-component and y-
`component fall within that specific range, determining that the normal vector is facing downward.
`6. The method according to claim 4, wherein the step of determining whether the normal
`vector is facing downward comprises:
`determining whether the z-component of the normal vector is negative and its x-component
`and y-component are both zero; and
`when the z-component of this normal vector is negative and its x-component and y-
`component are both 0, determining that the normal vector is facing downward.
`7. The method according to claim 1, characterized by further comprising:
`continuing to detect the normal vector of the plane of the handheld electronic device;
`determining whether the normal vector deviates from the downward-facing direction; and
`if the normal vector deviates from the downward direction, controlling the handheld
`electronic device to return to a normal operation mode.
`8. The method according to claim 7, wherein after the step of determining that the normal
`vector deviates from the downward direction, the method further comprises:
`determining whether a state of the normal vector deviating from the downward direction is
`maintained for more than a second specific time; and
`controlling the handheld electronic device to return to the normal operation mode when the
`state of the normal vector deviating from the downward direction is maintained for more than a
`second specific time.
`9. The method according to claim 7, wherein the entry of the handheld electronic device to
`the power saving mode is controlled by an operating system of the handheld electronic device,
`and the return to the normal operation mode is controlled by an embedded controller of the
`handheld electronic device.
`10. The method according to claim 1, wherein the power saving mode comprises one of a
`sleep mode and a hibernate mode.
`
`
`
`2
`
`Petitioner Samsung Ex-1016, 0003
`
`

`

`
`
`
`
`
`
`
`
`
`
`
`
`CN 101458557 B
`
`Specification
`POWER MANAGEMENT METHOD
`FOR HANDHELD ELECTRONIC DEVICE
`
`Page 4 / 5
`
`Technical Field
`[0001] The present invention relates to a power management method, and in particular, a power
`management method using a gravity sensor.
`
`Background Art
`[0002] With the rapid changes in technology, the functions provided by handheld electronic devices
`such as mobile phones, personal digital assistants and notebook computers tend to be diversified. In
`addition to basic functions such as calling, text messaging and note taking, the connection to the Internet
`for web page browsing and email sending and receiving has also become one of indispensable functions
`of handheld electronic devices. Various functions not only can bring people convenience in life, but also
`can be used as tools for leisure and entertainment at ordinary times, which makes handheld electronic
`devices become one of the most popular high-tech electronic products nowadays.
`[0003] Handheld electronic devices are mostly used in outdoor locations, and in this situation where
`there is no external power supply, the power of the entire handheld electronic device can only be supplied
`by a battery installed in it. It can be seen that for handheld electronic devices, power management is the
`most important issue. How to implement the timely control of the handheld electronic device to enter a
`power saving mode according to an operation state of a user to thus improve the use efficiency of the
`battery extend the battery life is particularly critical for the power management.
`[0004] However, for the current power saving function of the handheld electronic device, the user needs
`to preset a period of time, and the handheld electronic device will enter the power saving mode only when
`the user's operation on the handheld electronic device stops and the accumulated stop time exceeds the
`preset time. In this pattern, a state needs to be maintained for a period of time before the handheld
`electronic device enters the power saving mode, still consuming a lot of power. In addition to the above
`pattern of presetting a time, the user can also manually search for and enable the power saving mode
`through multiple menu selections when stopping using the handheld electronic device. However, this
`manual pattern not only wastes time, but also requires relatively complex operations that often make the
`user feel reluctant to perform, and in the end cannot achieve the power saving effect.
`
`Summary of the Invention
`[0005] In view of this, the present invention provides a power management method for a handheld
`electronic device that uses a gravity sensor (G-sensor) to detect a tilt state of the handheld electronic
`device to determine whether to enter a power saving mode and thus save power.
`[0006] In order to achieve the above or other purposes, the present invention proposes a power
`management method for a handheld electronic device. First, the gravity sensor is used to detect a normal
`vector on a plane of the handheld electronic device, then it is determined whether the normal vector is
`facing downward, if the normal vector is facing downward, it is determined whether a state of the normal
`vector facing downward is maintained for more than a first specific time, and the handheld electronic
`device is controlled to enter the power saving mode when the state of the normal vector facing downward
`is maintained for more than the first specific time.
`[0007] In the present invention, preferably the plane of the handheld electronic device is a plane
`containing a screen of the handheld electronic device when the handheld electronic device is placed
`horizontally.
`[0008] In the present invention, preferably the normal vector includes an x-component, a y-component
`and a z-component. The step of determining whether the normal vector is downward facing includes
`determining whether the z-component of the normal vector is negative and the x-component and y-
`component of the normal vector both fall within a specific range. When the z-component of the normal
`
`4
`
`Petitioner Samsung Ex-1016, 0004
`
`

`

`
`
`
`
`
`
`
`
`
`
`CN 101458557 B
`
`Specification
`
`Page 5 / 5
`
`vector is negative and the x-component and y-component of the normal vector both fall within the specific
`range, the normal vector is determined to be facing downward.
`[0009] In the present invention, preferably the above method also includes continuing to detect the
`normal vector on the plane of the handheld electronic device and determining whether the normal vector
`deviates from a downward direction, and if the normal vector deviates from the downward direction, the
`handheld electronic device is controlled to return to a normal operation mode.
`[0010] In the present invention, preferably, after the step of determining that the normal vector deviates
`from the downward direction, the method also includes determining whether a state of the normal vector
`deviating from the downward direction is maintained for more than a second specific time, and when the
`state of the normal vector deviating from the downward direction is maintained for more than the second
`specific time, the handheld electronic device is controlled to return to the normal operation mode.
`[0011] In the present invention, preferably an operating system of the handheld electronic device
`controls a process of the handheld electronic device entering the power saving mode, and an embedded
`controller of the handheld electronic device controls the returning to the normal operation mode.
`[0012] In the present invention, preferably the power saving mode includes one of a sleep mode and a
`hibernate mode. The handheld electronic device includes one of a mobile phone, a smart phone, a personal
`digital assistant (PDA) phone, and an ultra-mobile personal computer (UMPC).
`[0013] The invention determines whether a front side of the handheld electronic device is facing
`downward according to magnitudes of the normal vector on the front side of the handheld electronic device
`detected by the gravity sensor, so as to control the handheld electronic device to enter the power saving
`mode without the need to operate through the menu and other complicated procedures, but to provide a
`more intuitive and convenient way of power management.
`[0014] In order to make the above and other purposes, features and advantages of the present invention
`more obvious and understandable, the following embodiments and preferable embodiments, in
`conjunction with the drawings, are described in detail as follows.
`
`Brief Description of the Drawings
`[0015] FIG. 1 is a block diagram of a handheld electronic device illustrated in accordance with an
`embodiment of the present invention.
`[0016] FIG. 2 is a schematic diagram of a normal vector on a plane of the handheld electronic device
`illustrated in accordance with an embodiment of the present invention.
`[0017] FIG. 3 is a flow chart diagram of a power management method for a handheld electronic device
`illustrated in accordance with an embodiment of the present invention.
`[0018] FIG. 4 is a flow chart diagram of a power management method for a handheld electronic device
`illustrated in accordance with an embodiment of the present invention.
`[0019] FIG. 5 is a flow chart diagram of a power management method for a handheld electronic device
`illustrated in accordance with an embodiment of the present invention.
`
`Detailed Description
`[0020] Usually when a user operates a handheld electronic device equipped with a screen, such as a bar
`handheld electronic device or a slide handheld electronic device, a front side (i.e., a side that includes the
`screen) of the device is facing upward. Even when the user stops operating the device and places it on a
`table or other object, the front side usually is also facing upward, unless the user does not want other people
`to see the contents on the screen of the device or wants to stop using the device indeed, he may place the
`device with the front side facing downward. In addition, if the device is a flip-up handheld electronic
`device, an upper cover portion provided with the screen is also facing upward or tilted upward when the
`user uses the device, and when the user wants to stop using the device, an upper cover provided with the
`screen is usually facing downward or closed to avoid other people to see the contents on the screen.
`[0021] As can be seen from the above, when the device is placed with the front side facing downward
`
`5
`
`Petitioner Samsung Ex-1016, 0005
`
`

`

`
`
`
`
`CN 101458557 B
`
`Specification
`
`Page 6 / 5
`
`or the upper cover provided with the screen facing downward, it almost means that the user wants to stop
`using the device, and in this case if the device can be instantly brought into a power saving mode, an
`unnecessary power waste can be saved, thereby increasing a standby time of the handheld electronic
`device. The present invention is a power management method for a handheld electronic device developed
`on the basis of the above concept. In order to make the content of the present invention clearer, the
`following embodiments are given as examples of how the present invention can indeed be implemented
`accordingly. [0022] FIG. 1 is a block diagram of a handheld electronic device illustrated in accordance
`with an embodiment of the present invention. Referring to FIG. 1, the handheld electronic device 100 of
`this embodiment includes a system board 110, a screen 120, an embedded controller 130, a gravity sensor
`(G- sensor) 140, and an operating system 150. For example, the handheld electronic device 100 is a
`mobile phone, a smart phone, a touch phone, a personal digital assistant phone (PDA phone) or an ultra-
`mobile personal computer (Ultra-Mobile PC, UMPC), without limiting its scope.
`[0023] This embodiment is primarily a handheld electronic device 100 equipped with a gravity sensor
`(G-sensor) 140 to detect a normal vector on a plane of the handheld electronic device 100. The plane, for
`example, is a plane containing the screen of the handheld electronic device placed horizontally, or an upper
`cover of a flip-up handheld electronic device that contains a screen thereof during use. FIG. 2 is a
`schematic diagram of the normal vector on the plane of the handheld electronic device illustrated in
`accordance with an embodiment of the present invention. Referring first to FIG. 2(a), which illustrates a
`situation where the handheld electronic device is placed with the front side facing upward, a plane 210 is
`the plane containing the screen, and the normal vector is a vector that is perpendicular to the plane 210
`and facing toward a z-axis direction. Referring further to FIG. 2(b), which illustrates a schematic diagram
`of the handheld electronic device with the front side facing downward, the plane 210 is the plane
`containing the screen, and the normal vector is a vector that is perpendicular to the plane 210 and facing
`opposite the z-axis direction.
`[0024] Detection data of the above normal vector is transmitted to the operating system 150 through the
`embedded controller 130 and the system board 110, and the operating system 150 analyzes and processes
`the data to decide whether to enable the power saving mode. In detail, when the operating system 150
`determines that the normal vector is pointing downward, the operating system 150 controls the handheld
`electronic device to enter the power saving mode, so as to perform power saving actions such as turning
`off the screen 120; otherwise, a normal operation mode is maintained.
`[0025] Once the power saving mode is enabled, the control of the handheld electronic device 100 is
`handed over to the embedded controller 130, and in this case the gravity sensor 140continues to detect the
`normal vector on the plane of the handheld electronic device 100. When the normal vector deviates from
`an original downward direction, the embedded controller 130 controls the handheld electronic device
`back to the normal operation mode, and gives the control back to the operating system 150 for operation
`by the user. The following provides another embodiment to describe detailed steps of the power
`management method for the handheld electronic device 100.
`[0026] FIG. 3 is a flow chart diagram of a power management method for a handheld electronic device
`illustrated in accordance with an embodiment of the present invention. Referring to FIG. 3, this
`embodiment is applicable to the handheld electronic device 100 of the preceding embodiment to bring the
`handheld electronic device to a power saving mode in a timely manner when a front side of the handheld
`electronic device or an upper cover provided with a screen is detected to be facing downward, in the
`following steps:
`[0027] First, a normal vector on a plane of the handheld electronic device is detected using a gravity
`sensor (G-sensor) (step S310). The plane is a plane containing the screen of the handheld electronic device
`(the plane 200 as shown in FIG. 2) placed horizontally. The normal vector is transmitted to an operating
`system via an embedded controller and a system board for subsequent analysis and processing.
`[0028] The operating system then determines whether the normal vector is facing downward (step S320).
`In detail, the normal vector on the plane of the handheld electronic device includes an x component, a y
`component and a z component. When the handheld electronic device is placed horizontally, the x
`component and the y component of the normal vector are both 0, and whether the normal vector is facing
`upward or downward may be determined according to a magnitude of the z component. In particular, when
`the operating system determines that the z component of the normal vector is negative, the normal vector
`may be determined to be facing downward.
`[0029] Following the above description, if the normal vector is determined to be facing downward, the
`
`
`
`6
`
`Petitioner Samsung Ex-1016, 0006
`
`

`

`
`
`
`
`CN 101458557 B
`
`Specification
`
`Page 7 / 5
`
`operating system will further control the handheld electronic device to enter the power saving mode (step
`S330); otherwise, if the normal vector is determined to be not facing downward, the handheld electronic
`device maintains a normal operation mode (step S340). The above power saving mode includes a sleep
`mode or a hibernate mode, and the content of the power saving mode can be customized by the user
`according to his preferences or habits, the scope of which is not limited in this embodiment.
`[0030] From the above, it can be seen that whether the handheld electronic device or the upper cover
`provided with the screen is placed to be facing downward can be determined according to magnitudes of
`the normal vector detected using the gravity sensor, so as to perform timely bringing of the handheld
`electronic device into the power saving mode, thereby saving power consumption. It is worth noting that
`in the determination of the direction of the normal vector of the handheld electronic device, different
`determination results may be obtained due to different placement angles or changes in the placement angle
`of the handheld electronic device carried by the user. The present invention provides respective solutions
`for both cases, with respective embodiments provided below for detailed description.
`[0031] FIG. 4 is a flow chart diagram of a power management method for a handheld electronic device
`illustrated in accordance with an embodiment of the present invention. Referring to FIG. 4, this
`embodiment is also applicable to the handheld electronic device 100 of the preceding embodiment to bring
`the handheld electronic device into a power saving mode in a timely manner when a front side of the
`handheld electronic device or an upper cover provided with a screen is detected to be facing downward.
`In particular, unlike the preceding embodiment, this embodiment provides a buffer space to allow the
`handheld electronic device to achieve the same power saving effect when a normal vector on the front side
`is not facing downward, in the following steps:
`[0032] First, the normal vector on a plane of the handheld electronic device is detected using a gravity
`sensor (step S410). The plane is a plane containing the screen of the handheld electronic device placed
`horizontally. The normal vector is transmitted to an operating system via an embedded controller and a
`system board for subsequent analysis and processing.
`[0033] The operating system then determines whether the normal vector is facing downward. In detail,
`the normal vector on the plane of the handheld electronic device includes an x component, a y component
`and a z component. Generally, as long as the x component and y component of the normal vector are both
`0 and the z component is negative, the normal vector can be determined to be facing downward. However,
`with an object placement habit of the user or difference of placement environments, the front side of the
`device may not necessarily be facing downward, causing the normal vector on the front side to include an
`x component or y component (i.e., the x component and/or the y component are not 0). Accordingly, in
`addition to determining whether the z component of the normal vector is negative, this embodiment also
`includes determining whether the x component and the y component of the normal vector fall within
`specific ranges respectively (step S420).
`[0034] When the z component of the normal vector is negative and the x component and the y
`component both fall within specific ranges, the normal vector is determined to be facing downward, and
`in this case the operating system further controls the handheld electronic device to enter the power saving
`mode (step S430); otherwise, if the z component of the normal vector is not negative or the x component
`or the y component does not fall within the specific range, the handheld electronic device maintains the
`normal operation mode (step S440).
`[0035] For example, referring to FIG. 2(b), which provides a specific range (as shown by a dashed line)
`for the normal vector, when the normal vector falls within the specific range, the normal vector may be
`determined to be pointing in a downward direction, and the handheld electronic device may be brought
`into the power saving mode accordingly.
`[0036] For another example, in use of a flip-up handheld electronic device, if the upper cover provided
`with the screen is merely tilted downward slightly, the normal vector does not fall within the specific range,
`and therefore the flip-up handheld electronic device is not brought into the power saving mode.
`[0037] Through the above method, even if the device is placed with the front side slightly deviating
`from the direct downward direction, it can still be determined that the user wants to stop using the device,
`and therefore the device is brought into the power saving mode. In addition, the present invention also
`provides a buffer time to determine whether the user wants to bring the device into the power saving
`mode indeed, rather than inadvertently leaving the front side of the device facing downward.
`[0038] FIG. 5 is a flow chart diagram of a power management method for a handheld electronic device
`in accordance with an embodiment of the present invention. Referring to FIG. 5, the present embodiment
`
`
`
`7
`
`Petitioner Samsung Ex-1016, 0007
`
`

`

`
`
`
`
`CN 101458557 B
`
`Specification
`
`Page 8 / 5
`
`is also applicable to the handheld electronic device 100 of the preceding embodiment to bring the handheld
`electronic device into a power saving mode when a front side of the handheld electronic device is detected
`to be facing downward. Unlike the preceding embodiment, this embodiment provides a buffer time, so
`that after the handheld electronic device is determined to be facing downward and maintained for a
`specific period of time, it is determined that the user wants to temporarily turn off the device, and
`therefore the device is controlled to enter the power saving mode, in the following steps:
`[0039] First, a normal vector on a plane of the handheld electronic device is detected using a gravity
`sensor (step S510). The plane is a plane containing a screen of the handheld electronic device placed
`horizontally. The normal vector is transmitted to an operating system via an embedded controller and a
`system board for subsequent analysis and processing.
`[0040] The operating system then determines whether the normal vector is facing downward (step S520).
`Detailed steps for determining whether the normal vector is facing downward are the same as or similar
`to those in the preceding embodiments, which are not repeated here.
`[0041] When the normal vector is determined to be facing downward, it is further determined whether a
`downward state of the normal vector is maintained for a first specific time (step S530). When the normal
`vector is facing downward and maintained for a time more than the first specific time, the handheld
`electronic device is controlled to enter the power saving mode (step S540); otherwise, if the normal
`vector deviates from a downward direction before being maintained for the specific time, the handheld
`electronic device is not brought into the power saving mode, and is maintained in a normal operation
`mode (step S550).
`[0042] It is worth mentioning that this embodiment also includes a step of turning on the device when
`the user wants to use the device again after the device enters the power saving mode. After the device
`enters the power saving mode, the control of the device is handed over to the embedded controller, and
`in this case the gravity sensor of the device continues to detect the normal vector on the plane of the
`handheld electronic device. Data of the detected normal vector is transmitted to the embedded controller,
`and the embedded controller analyzes the data to determine whether the normal vector deviates from the
`downward direction (step S560). If the normal vector deviates from the downward direction, the
`embedded controller further determines whether the normal vector deviates from the downward direction
`for a time more than a second specific time (step S570), and only when the normal vector deviates from
`the downward direction for the time more than the second specific time, the embedded controller
`controls the handheld electronic device to return to the normal operation mode (step S580). In addition,
`if the normal vector is determined to not deviate from the downward direction or the time of deviation
`from the downward direction does not exceed the specific time, the handheld electronic device is
`maintained in the power saving mode (step S590).
`[0043] In summary, the power management method for the handheld electronic device of the present
`invention determines whether to enable the power saving mode by detecting a placement angle of the
`handheld electronic device, and when the front side of the handheld electronic device is facing downward,
`determines that the user stops using, so as to introduce the power saving mode in a timely manner to save
`power. Correspondingly, when the front side of the handheld electronic device deviates from the
`downward direction, it means that the user wants to use the device again, and the device returns to the
`normal operation mode. As such, a more intuitive and convenient way of power management is provided.
`[0044] Although the present invention has been revealed as above with the preferable embodiments, it
`is not intended to limit the present invention, and anyone skilled in the art may make some changes and
`modifications without departing from the spirit and scope of the present invention, so that the scope of
`protection of the present invention shall be as defined by the claims.
`
`
`
`8
`
`Petitioner Samsung Ex-1016, 0008
`
`

`

`
`
`DrawingsCN 101458557 B Page 1/4
`
`
`
`Embedded
`Controller
`
`120
`
`150
`
`ceSystem
`
`100
`
`FIG. 1
`
`10
`
`Petitioner Samsung Ex-1016, 0009
`
`Petitioner Samsung Ex-1016, 0009
`
`

`

`Drawin
`
`CN 101458557 B
`
`Page 2/4
`
`11
`
`Petitioner Samsung Ex-1016, 0010
`
`Petitioner Samsung Ex-1016, 0010
`
`

`

`
`
`DrawingsCN 101583151 B Page 3/4
`
`
`
`Detect a normal vector on a plane of a
`handheld electronic device using a
`gravity sensor
`
`$310
`
`
`
`
`
`Maintain a normal
`, Determine whether the
`operation mode ofthe
`‘ normalvectoris facing *
`
`handheld electronic
`downward
`
`
`
`
`Control the handheld electronic device to enter
`a power saving mode
`
`$330
`
`FIG.3
`
`$410
`
`
`
`Detect a normal vector on a plane of a
`handheld electronic device using a gravity
`
`sensor
`
`
`a
`—$420
`5440
`
`
`Determine whether a z component
`
`
`Maintain a normal
`of the normal vectoris negative and
`
`operation modeof the
`an X component and a y component
`handheld electronic
`each falls within a specific range
`
`
`
`Control the handheld electronic deviceto .
`'
`enter a power saving mode
`
` 3430
`
`FIG. 4
`
`11
`
`Petitioner Samsung Ex-1016, 0011
`
`Petitioner Samsung Ex-1016, 0011
`
`

`

`
`
`DrawingsCN 101583151 B Page 4/4
`
`
`
`
`
`Detect a normal vector on a plane of a
`handheld electronic device using a gravity
`sensor
`
`
`
`$510
`
`
`
`
`Determine whether the MaintainanormaNo
`
`operation mode
`of me
`<— normal vectoris facing
`handheld electronic
`downward
`“oe
`Yes
`
`
`
`——S530
`
`No
`
`Determine whether a
`downward state of the normal
`vector is maintained for a first
`specific time
`
`Yes
`
`Determine whether the
`normal vector deviates
`
`saving mode ofthe
`handheld electronic
`device
`
`No
`=
`
`
`
`
`Control the handheld electronic device to
`enter a power saving mode
`
`77 9960
`No
`<— froma downward
`lirection
`“Tie
`Determine whether a state of* $570
`the normal vector deviating
`from the downward direction
`is maintained for a second
`specific time
`
`
`
`
`Control the handheld electronic
`device to return to the normal
`operation mode
`
`FIG. 5
`
`11
`
`$580
`
`Petitioner Samsung Ex-1016, 0012
`
`Petitioner Samsung Ex-1016, 0012
`
`