WO2022055494A1 - Reduced power mode exit - Google Patents

Reduced power mode exit Download PDF

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Publication number
WO2022055494A1
WO2022055494A1 PCT/US2020/050327 US2020050327W WO2022055494A1 WO 2022055494 A1 WO2022055494 A1 WO 2022055494A1 US 2020050327 W US2020050327 W US 2020050327W WO 2022055494 A1 WO2022055494 A1 WO 2022055494A1
Authority
WO
WIPO (PCT)
Prior art keywords
computing device
convertible computing
enclosure
controller
mode
Prior art date
Application number
PCT/US2020/050327
Other languages
French (fr)
Inventor
Simon Wong
Tai Hsiang CHEN
Anand Kulkarni
Original Assignee
Hewlett-Packard Development Company, L.P.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2020/050327 priority Critical patent/WO2022055494A1/en
Publication of WO2022055494A1 publication Critical patent/WO2022055494A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G06F1/1618—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position the display being foldable up to the back of the other housing with a single degree of freedom, e.g. by 360° rotation over the axis defined by the rear edge of the base enclosure
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1677—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • G06F1/3218—Monitoring of peripheral devices of display devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text

Definitions

  • a convertible computing device is a type of portable computer that has an upper enclosure housing a touchscreen display and a lower enclosure housing a keyboard, and which may also house a pointing device like a touchpad.
  • the upper enclosure is fully rotatable relative to the lower enclosure.
  • a convertible computing device is operable in a laptop or notebook mode, like a laptop or notebook computer.
  • a convertible computing device is also operable in a tablet mode, like a standalone tablet computing device.
  • the upper enclosure is fully rotated relative to the lower enclosure so that the enclosures are in contact with one another and the touchscreen display and the keyboard face away from one another.
  • a convertible computing device is thus convertible from a laptop or notebook computer and a tablet computing device, and vice-versa.
  • a convertible computing device may also be operable in other modes.
  • FIGs. 1 A and 1 B are diagrams of an example convertible computing device in a notebook mode and a tablet mode, respectively.
  • FIGs. 2A and 2B are diagrams of different examples of a convertible computing device in which the computing device can exit a reduced power mode while operating in a tablet mode responsive to a wake touch gesture on a touchscreen display of the device.
  • FIG. 3 is a diagram of a table of different example operating modes of a convertible computing device, including whether a power button of the computing device is enabled or disabled in each mode, and whether the device can exit a reduced power mode while operating in each mode responsive to a wake touch gesture.
  • FIG. 4 is a diagram of a non-transitory computer-readable data storage medium storing example program code executable by a convertible computing device to exit a reduced power module while operating in a tablet mode responsive to a wake touch gesture on a touchscreen display of the device.
  • a convertible computing device can be converted from a laptop or notebook computer to a tablet computing device by fully rotating the upper enclosure housing the touchscreen display relative to the lower enclosure housing the keyboard.
  • a convertible computing device can enter a reduced power mode when not actively being used without the user having to fully shut down the operating system of the computing device and power down the device.
  • a convertible computing device powers off as many hardware components as possible to reduce power usage. If the convertible computing device is operating on battery power, as opposed to being plugged into the wall, entry into the reduced power mode extends battery life.
  • a convertible computing device may maintain machine state in RAM but power off the processor, touchscreen display, and non-volatile storage of the device, among other components.
  • the RAM remains powered, and uses a small amount of power.
  • the convertible computing device can quickly exit this reduced power mode to again become fully operable because machine state remains in RAM.
  • a convertible computing device may first copy the contents of RAM to non-volatile storage of the device before powering off the RAM, touchscreen display, and non-volatile storage, among other components. The convertible computing device exits this reduced power mode less quickly because machine state has to first be restored back to RAM.
  • this reduced power mode uses less power than other reduced power modes in which RAM remains powered.
  • a portable computer usually permits exit from a reduced power mode via user actuation of the power button, keyboard, or pointing device of the computer.
  • a convertible computing device may disable its power button to prevent unintended user actuation.
  • the convertible computing device may likewise disable its keyboard and pointing device to prevented unintended user input while in the tablet mode. Because entry into a reduced power mode also usually results in powering off the touchscreen display, this means that causing the convertible computing device to exit the reduced power mode is difficult.
  • a user may first have to rotate the upper enclosure relative to the lower enclosure to transition from the tablet mode to another mode, such as a notebook mode, in which the power button, keyboard, and/or pointing device is not disabled.
  • Techniques described herein permit a user to more easily and conveniently cause a convertible computing device to exit a reduced power mode when operating in a tablet mode.
  • the computing device During operation of the convertible computing device in the tablet mode, the computing device’s power button is disable.
  • the touchscreen display Upon entry of the convertible computing device into a reduced power mode, the touchscreen display may remain powered.
  • the convertible computing device can exit the reduced power mode responsive to a specified wake touch gesture on the touchscreen display. Therefore, the user does not have to first transition the convertible computing device from the tablet mode to another mode, such as a notebook mode, to cause the computing device to exit the reduced power mode.
  • FIGs. 1 A and 1 B show an example convertible computing device 100 in a notebook mode and a tablet mode, respectively.
  • the convertible computing device 100 includes a lower enclosure 102 and an upper enclosure 104, which may be respectively referred to as first and second enclosures.
  • the enclosures 102 and 104 are fully rotatable relative to one another, per arrow 114 in FIG. 1A.
  • the upper enclosure 104 houses a touchscreen display 112 (viz., a touchscreen display device) that can display information in the form of images as well as receive touch input, such as from a user.
  • the lower enclosure 102 houses a power button 106 and can also house a keyboard 108 and/or a pointing device 110, such as a touchpad, by which a user can provide input.
  • the convertible computing device 100 is operable in a notebook mode in which the upper enclosure 104 has been rotated relative to the lower enclosure 102, such as by more than 90 degrees, but not fully rotated relative to the lower enclosure 102 (e.g., by 360 degrees).
  • a user may thus provide input on the keyboard 108 and the pointing device 110 while viewing output on the touchscreen display 112.
  • the user may also provide touch input on the touchscreen display 112 in the notebook mode.
  • the power button 106, the keyboard 108, and the pointing device 110 can remain powered if the convertible computing device 100 enters a reduced power mode, permitting the user to easily cause the computing device 100 to exit the reduced power mode via actuation of the power button 106, the keyboard 108, or the pointing device 110.
  • the convertible computing device 100 is operable in a tablet mode in which the upper enclosure 104 has been fully rotated relative to the lower enclosure 102, such as by 360 degrees, so that the enclosures 102 and 104 are in contact with one another and the touchscreen display 112 and the keyboard 108 (hidden from view in FIG. 1 B) face away from one another.
  • a user can provide touch input on the touchscreen display 112 in the tablet mode.
  • the power button 106 may be disabled in the tablet mode to prevent unintended actuation of the button 106.
  • the keyboard 108 and the pointing device 110 may be disabled in the tablet mode to prevent unintended input.
  • the power button 106, the keyboard 108, and the pointing device 110 can remain disabled if the convertible computing device 100 enters a reduced power mode, preventing the user from causing the computing device 100 to exit the reduced power mode via actuation of the power button 106, the keyboard 108, or the pointing device 110.
  • the user instead provides a specified wake touch gesture on the touchscreen display 112.
  • the wake touch gesture may be as simple as any touch on the touchscreen display, so that the user does not have to remember a specific gesture to cause the computing device 100 to exit the reduced power mode.
  • the device 100 may employ an algorithm to avoid incidental user contact with the touchscreen display 112 causing unintended exit from the reduced power mode.
  • the wake touch gesture may instead be slightly more complex, such as the letter II or the letter W, which can be easily detected but unlikely to be entered during incidental user contact with the touchscreen display 112 while the convertible computing device 100 is in the reduced power mode.
  • the wake touch gesture may thus not be as simple as any touch of the touchscreen display 112 to avoid incidental user contact with the display 112 causing unintended exit of the computing device 100 from the reduced power mode.
  • the wake touch gesture may not be a relatively complex touch gesture, such as a complete word or series of letters, because the touchscreen display 112 may operate at a reduced scan rate in the reduced power mode to further conserve power.
  • FIGs. 2A and 2B show different examples of the convertible computing device 100 in which the computing device 100 can exit a reduced power mode during operation in the tablet mode responsive to a specified wake touch gesture on the touchscreen display 112.
  • the convertible computing device 100 includes a controller 202, which can include one or multiple integrated circuits (ICs), such as application-specific ICs (ASICs).
  • ICs integrated circuits
  • ASICs application-specific ICs
  • the convertible computing device 100 can include a sensor 204, such as a Hall sensor, to detect full rotation of the upper enclosure 104 relative to the lower enclosure 102, corresponding to operation of the computing device 100 in the tablet mode.
  • the convertible computing device 100 can include a pointing device controller 208 communicatively connected to the pointing device 110.
  • the controller 208 may be an IC, such as an ASIC, which processes input provided on the pointing device 110 for usage by the convertible computing device 100. During operation of the convertible computing device 100 in the tablet mode, the controller 208 may ignore input on the pointing device 110.
  • the controller 202 can include a touchscreen controller 210 communicatively connected to the touchscreen display 112, an embedded controller 212, and a basic input/output system (BIOS) 214 communicatively connected to the embedded controller 212.
  • the controllers 210 and 212 and the BIOS 214 may be ICs, such as ASICs.
  • the power button 106, the keyboard 108, and the sensor 204 are communicatively connected to the embedded controller 212, and are more generally said to be communicatively connected to the controller 202.
  • the touchscreen controller 210 processes touch input provided on the touchscreen display 112 for usage by the convertible computing device
  • the embedded controller 212 similarly processes input provided on the keyboard 108 for usage by the computing device 100, and processes actuation of the power button 106 for usage by the device 100. During operation of the convertible computing device 100 in the tablet mode, the embedded controller 212 specifically and the controller 202 more generally may ignore input on the keyboard 108 and actuation of the power button 106.
  • the BIOS 214 refers to hardware or hardware and instructions to initialize, control, or operate the convertible computing device 100, including prior to execution of the operating system of the computing device 100. Instructions included within the BIOS 214 may be software, firmware, microcode, or other programming that defines or controls functionality or operation of the BIOS 214.
  • the BIOS 214 may be implemented using instructions, such as platform firmware of the convertible computing device 100, executable by a processor.
  • the BIOS 214 may initialize, control, or operate components such as hardware components of the convertible computing device 100, and may load or boot the operating system of the computing device 100.
  • the BIOS 214 may provide or establish an interface between the hardware devices or platform firmware of the convertible computing device 100 and the operating system of the computing device 100.
  • the operating system may control or operate the hardware devices or platform firmware via this interface.
  • the BIOS 214 may implement the Unified Extensible Firmware Interface (UEFI) specification or another specification or standard for initializing, controlling, or operating the convertible computing device 100.
  • UEFI Unified Extensible Firmware Interface
  • the BIOS 214 receives a full-rotation signal from the sensor 204, per arrow 216, upon detection of full rotation of the upper enclosure 104 relative to the lower enclosure 102.
  • the BIOS 214 in turns receives a signal from the embedded controller 212 corresponding to the full-rotation signal, per arrow 218.
  • the BIOS 214 in response to receiving this signal operates the convertible computing device in the tablet mode.
  • the embedded controller 212 is communicatively connected to the touchscreen controller 210.
  • the embedded controller 212 receives a reduced-power mode signal from the BIOS 214, per arrow 220, upon entry of the convertible computing device 100 into a reduced power mode during operation of the computing device 100 in the tablet mode.
  • the touchscreen controller 210 in turn receives a signal from the embedded controller 212 corresponding to the reduced-power signal, per arrow 222.
  • the embedded controller 212 and the touchscreen controller 210 remain powered in the reduced power mode.
  • the touchscreen controller 210 responsively detects the specified wake touch gesture on the touchscreen display 112 upon entry of the convertible computing device 100 into the reduced power mode during operation in the tablet mode, per arrow 224.
  • the touchscreen controller 210 may detect the specified wake touch gesture on the touchscreen display 112 while the display 112 is operating at a reduced scan rate in the reduced power mode to further conserve power.
  • the touchscreen display 112 may not detect touch gestures, including the specified wake touch gesture, as quickly as when operating at a non-reduced scan rate, and/or may not be able to detect complex touch gestures.
  • the embedded controller 212 receives a gesture-detect signal from the touchscreen controller 210 upon detection of the specified wake touch gesture on the touchscreen display 112, per arrow 226.
  • the BIOS 214 in turn receives a signal from the embedded controller 212 corresponding to the gesture-detect signal, per arrow 228.
  • the BIOS 214 in response to receiving this signal causes the convertible computing device 100 to exit the reduced power mode.
  • the BIOS 214 is communicatively connected to the touchscreen controller 210.
  • the touchscreen controller 210 receives a reduced-power signal from the BIOS 214, per arrow 252 (as opposed to from the embedded controller 212 as in FIG. 2A), upon entry of the convertible computing device 100 into a reduced power mode during operation of the computing device 100 in the tablet mode.
  • the touchscreen controller 210 remains powered on in the reduced power mode of the convertible computing device 100.
  • the touchscreen controller 210 responsively detects the specified wake touch gesture on the touchscreen display 112, which may be operating at a reduced scan rate, upon entry of the convertible computing device 100 into the reduced power mode during operation in the tablet mode, per arrow 224.
  • the BIOS 214 receives a gesture-detect signal from the touchscreen controller 210 upon detection of the specified wake touch gesture on the touchscreen display 112, per arrow 254 (as opposed to receiving a corresponding signal from the embedded controller 212 as in FIG. 2A).
  • the BIOS 214 in response to receiving the gesture-detect signal causes the convertible computing device 100 to exit the reduced power mode.
  • the convertible computing device 100 can exit a reduced power mode while operating in a tablet mode responsive to a wake touch gesture on the touchscreen display 112 of the computing device 100.
  • the power button 106 may be disabled, as may be the keyboard 108 and the pointing device 110. Therefore, the power button 106, the keyboard 108, and the pointing device 110 cannot be used to cause the convertible computing device 100 to exit the reduced power mode during operation of the computing device 100 in the tablet mode.
  • the power button 106, the keyboard 108, and/or the pointing device 110 may be disabled during operation of the convertible computing device 100 in other modes.
  • the wake touch gesture on the touchscreen display 112 may cause the computing device 100 to exit the reduced power mode during operation in other modes.
  • FIG. 3 shows a table of different example operating modes 302A, 302B, 302C, 302D, and 302E of the convertible computing device 100, which are collectively referred to as the operating modes 302.
  • the table depicts whether the power button 106 is enabled or disabled in each operating mode 302 of the convertible computing device 100.
  • the table further depicts whether the convertible computing device 100 can exit the reduced power mode while operating in each mode 302 responsive to a wake touch gesture on the touchscreen display 112.
  • 100 is a clamshell mode.
  • this operating mode 302A the upper enclosure
  • the convertible computing device 100 may be operable in the operating mode 302A if the device 100 is communicatively connected to an external display device and an external input device, for instance.
  • the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled, and the wake touch gesture on the touchscreen display 112 may not cause the convertible computing device 100 to exit a reduced power mode.
  • the operating mode 302B of the convertible computing device 100 is a stand mode.
  • the upper enclosure 104 may be rotated between 270 and 360 degrees relative to the lower enclosure 102.
  • the convertible computing device 100 may rest on an external surface such as a desktop or tabletop such that the power button 106, the keyboard 108, and the pointing device 110, which are hidden from view in view FIG. 3, are adjacent to the desktop or tabletop.
  • the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled, and the wake touch gesture on the touchscreen display 112 may cause the convertible computing device 100 to exit a reduced power mode.
  • the operating mode 302C of the convertible computing device 100 is a tent mode.
  • the upper enclosure 104 may be rotated by more than 180 degrees relative to the lower enclosure 102.
  • the convertible computing device 100 may rest on an external surface such as a desktop or tabletop such that the touchscreen display 112 faces outwards, as do the power button 106, the keyboard 108, and the pointing device 110, which are hidden from view in FIG. 3.
  • the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled.
  • the wake touch gesture on the touchscreen display 112 may cause the computing device 100 to exit the reduced power mode.
  • the operating mode 302D of the convertible computing device 100 is a notebook mode in which the computing device 100 operates like a laptop or notebook computer, as in FIG. 1A.
  • the upper enclosure 104 may be rotated at least 90 degrees relative to the lower enclosure 102.
  • the convertible computing device 100 may rest on the surface of the lower enclosure 102 opposite the power button 106, the keyboard 108, and the pointing device 110.
  • the power button 106 (as well as the keyboard 108 and/or the pointing device 110) are enabled, and therefore may be actuated to cause the convertible computing device 100 to exit a reduced power mode.
  • the wake touch gesture on the touchscreen display 112 may also cause the convertible computing device 100 to exit the reduced power mode.
  • the operating mode 302E of the convertible computing device 100 is a tablet mode in which the computing device 100 operates like a standalone tablet computing device, as in FIG. 1 B.
  • the upper enclosure 104 is fully rotated (e.g., 360 degrees) relative to the lower enclosure 102.
  • the convertible computing device 100 may rest on the surface of the lower enclosure 102 at which the power button 106, the keyboard 108, and the pointing device 110 (which are hidden from view in FIG. 3) face outward.
  • the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled, and the wake touch gesture on the touchscreen display 112 may cause the convertible computing device 100 to exit the reduced power mode.
  • FIG. 4 shows a non-transitory computer-readable data storage medium 400 storing example program code 402 executable by the convertible computing device 100.
  • the controller 202 may execute the program code 402.
  • the program code 402 can include, responsive to full rotation of the enclosure 102 relative to the enclosure 104, operating the convertible computing device 100 in a tablet mode (404).
  • the program code 402 can include disabling the power button 106 during operation of the convertible computing device 100 in the tablet mode (406).
  • the program code 402 can include, upon entry of the convertible computing device 100 into a reduced power mode during operation in the tablet mode (408), detecting a wake touch gesture on the touchscreen display 112 (410).
  • the program code 402 can include causing the convertible computing device 100 to exit the reduced power mode responsive to detection of the wake touch gesture on the touchscreen display 112 (412).

Abstract

An example convertible computing device includes a first enclosure, a second enclosure, and a controller. The first enclosure houses a power button that is disabled during operation of the convertible computing device in a tablet mode. The second enclosure houses a touchscreen display device and is rotatable relative to the first enclosure to cause the convertible computing device to enter the tablet mode. Upon entry of the convertible computing device into a reduced power mode during the operation in the tablet mode, the controller causes the convertible computing device to exit the reduced power mode responsive to of a wake touch gesture on the touchscreen display device.

Description

REDUCED POWER MODE EXIT
BACKGROUND
[0001] A convertible computing device is a type of portable computer that has an upper enclosure housing a touchscreen display and a lower enclosure housing a keyboard, and which may also house a pointing device like a touchpad. The upper enclosure is fully rotatable relative to the lower enclosure. A convertible computing device is operable in a laptop or notebook mode, like a laptop or notebook computer.
[0002] A convertible computing device is also operable in a tablet mode, like a standalone tablet computing device. The upper enclosure is fully rotated relative to the lower enclosure so that the enclosures are in contact with one another and the touchscreen display and the keyboard face away from one another. A convertible computing device is thus convertible from a laptop or notebook computer and a tablet computing device, and vice-versa. A convertible computing device may also be operable in other modes.
BRIEF DESCRIPTION OF THE DRAWINGS
[0003] FIGs. 1 A and 1 B are diagrams of an example convertible computing device in a notebook mode and a tablet mode, respectively.
[0004] FIGs. 2A and 2B are diagrams of different examples of a convertible computing device in which the computing device can exit a reduced power mode while operating in a tablet mode responsive to a wake touch gesture on a touchscreen display of the device.
[0005] FIG. 3 is a diagram of a table of different example operating modes of a convertible computing device, including whether a power button of the computing device is enabled or disabled in each mode, and whether the device can exit a reduced power mode while operating in each mode responsive to a wake touch gesture.
[0006] FIG. 4 is a diagram of a non-transitory computer-readable data storage medium storing example program code executable by a convertible computing device to exit a reduced power module while operating in a tablet mode responsive to a wake touch gesture on a touchscreen display of the device.
DETAILED DESCRIPTION
[0007] As noted in the background section, a convertible computing device can be converted from a laptop or notebook computer to a tablet computing device by fully rotating the upper enclosure housing the touchscreen display relative to the lower enclosure housing the keyboard.
Like other types of portable computers, such as laptop or notebook computers, a convertible computing device can enter a reduced power mode when not actively being used without the user having to fully shut down the operating system of the computing device and power down the device. In the reduced power mode, a convertible computing device, like other types of portable computers, powers off as many hardware components as possible to reduce power usage. If the convertible computing device is operating on battery power, as opposed to being plugged into the wall, entry into the reduced power mode extends battery life.
[0008] For example, in a reduced power mode known as sleep, standby, or suspend to random-access memory (RAM) mode, a convertible computing device may maintain machine state in RAM but power off the processor, touchscreen display, and non-volatile storage of the device, among other components. The RAM remains powered, and uses a small amount of power. The convertible computing device can quickly exit this reduced power mode to again become fully operable because machine state remains in RAM. [0009] As another example, in a reduced power mode known as hibernation or suspend to disk mode, a convertible computing device may first copy the contents of RAM to non-volatile storage of the device before powering off the RAM, touchscreen display, and non-volatile storage, among other components. The convertible computing device exits this reduced power mode less quickly because machine state has to first be restored back to RAM. However, this reduced power mode uses less power than other reduced power modes in which RAM remains powered.
[0010] A portable computer usually permits exit from a reduced power mode via user actuation of the power button, keyboard, or pointing device of the computer. However, while operating in a tablet mode, a convertible computing device may disable its power button to prevent unintended user actuation. The convertible computing device may likewise disable its keyboard and pointing device to prevented unintended user input while in the tablet mode. Because entry into a reduced power mode also usually results in powering off the touchscreen display, this means that causing the convertible computing device to exit the reduced power mode is difficult. A user may first have to rotate the upper enclosure relative to the lower enclosure to transition from the tablet mode to another mode, such as a notebook mode, in which the power button, keyboard, and/or pointing device is not disabled. [0011] Techniques described herein permit a user to more easily and conveniently cause a convertible computing device to exit a reduced power mode when operating in a tablet mode. During operation of the convertible computing device in the tablet mode, the computing device’s power button is disable. Upon entry of the convertible computing device into a reduced power mode, the touchscreen display may remain powered. The convertible computing device can exit the reduced power mode responsive to a specified wake touch gesture on the touchscreen display. Therefore, the user does not have to first transition the convertible computing device from the tablet mode to another mode, such as a notebook mode, to cause the computing device to exit the reduced power mode.
[0012] FIGs. 1 A and 1 B show an example convertible computing device 100 in a notebook mode and a tablet mode, respectively. The convertible computing device 100 includes a lower enclosure 102 and an upper enclosure 104, which may be respectively referred to as first and second enclosures. The enclosures 102 and 104 are fully rotatable relative to one another, per arrow 114 in FIG. 1A. The upper enclosure 104 houses a touchscreen display 112 (viz., a touchscreen display device) that can display information in the form of images as well as receive touch input, such as from a user. The lower enclosure 102 houses a power button 106 and can also house a keyboard 108 and/or a pointing device 110, such as a touchpad, by which a user can provide input.
[0013] In FIG. 1A, the convertible computing device 100 is operable in a notebook mode in which the upper enclosure 104 has been rotated relative to the lower enclosure 102, such as by more than 90 degrees, but not fully rotated relative to the lower enclosure 102 (e.g., by 360 degrees). A user may thus provide input on the keyboard 108 and the pointing device 110 while viewing output on the touchscreen display 112. The user may also provide touch input on the touchscreen display 112 in the notebook mode. The power button 106, the keyboard 108, and the pointing device 110 can remain powered if the convertible computing device 100 enters a reduced power mode, permitting the user to easily cause the computing device 100 to exit the reduced power mode via actuation of the power button 106, the keyboard 108, or the pointing device 110.
[0014] In FIG. 1 B, the convertible computing device 100 is operable in a tablet mode in which the upper enclosure 104 has been fully rotated relative to the lower enclosure 102, such as by 360 degrees, so that the enclosures 102 and 104 are in contact with one another and the touchscreen display 112 and the keyboard 108 (hidden from view in FIG. 1 B) face away from one another. A user can provide touch input on the touchscreen display 112 in the tablet mode. The power button 106 may be disabled in the tablet mode to prevent unintended actuation of the button 106. Similarly, the keyboard 108 and the pointing device 110 may be disabled in the tablet mode to prevent unintended input. The power button 106, the keyboard 108, and the pointing device 110 can remain disabled if the convertible computing device 100 enters a reduced power mode, preventing the user from causing the computing device 100 to exit the reduced power mode via actuation of the power button 106, the keyboard 108, or the pointing device 110.
[0015] To cause the convertible computing device 100 to exit the reduced power mode during operation in the tablet mode, the user instead provides a specified wake touch gesture on the touchscreen display 112. The wake touch gesture may be as simple as any touch on the touchscreen display, so that the user does not have to remember a specific gesture to cause the computing device 100 to exit the reduced power mode. The device 100 may employ an algorithm to avoid incidental user contact with the touchscreen display 112 causing unintended exit from the reduced power mode.
[0016] The wake touch gesture may instead be slightly more complex, such as the letter II or the letter W, which can be easily detected but unlikely to be entered during incidental user contact with the touchscreen display 112 while the convertible computing device 100 is in the reduced power mode. The wake touch gesture may thus not be as simple as any touch of the touchscreen display 112 to avoid incidental user contact with the display 112 causing unintended exit of the computing device 100 from the reduced power mode. The wake touch gesture may not be a relatively complex touch gesture, such as a complete word or series of letters, because the touchscreen display 112 may operate at a reduced scan rate in the reduced power mode to further conserve power.
[0017] FIGs. 2A and 2B show different examples of the convertible computing device 100 in which the computing device 100 can exit a reduced power mode during operation in the tablet mode responsive to a specified wake touch gesture on the touchscreen display 112. The convertible computing device 100 includes a controller 202, which can include one or multiple integrated circuits (ICs), such as application-specific ICs (ASICs). Upon entry of the convertible computing device 100 into the reduced power mode during operation in the tablet mode, the controller 202 causes the computing device 100 to exit the reduced power mode responsive to the specified touch wake touch gesture on the touchscreen display.
[0018] The convertible computing device 100 can include a sensor 204, such as a Hall sensor, to detect full rotation of the upper enclosure 104 relative to the lower enclosure 102, corresponding to operation of the computing device 100 in the tablet mode. The convertible computing device 100 can include a pointing device controller 208 communicatively connected to the pointing device 110. The controller 208 may be an IC, such as an ASIC, which processes input provided on the pointing device 110 for usage by the convertible computing device 100. During operation of the convertible computing device 100 in the tablet mode, the controller 208 may ignore input on the pointing device 110.
[0019] The controller 202 can include a touchscreen controller 210 communicatively connected to the touchscreen display 112, an embedded controller 212, and a basic input/output system (BIOS) 214 communicatively connected to the embedded controller 212. The controllers 210 and 212 and the BIOS 214 may be ICs, such as ASICs. The power button 106, the keyboard 108, and the sensor 204 are communicatively connected to the embedded controller 212, and are more generally said to be communicatively connected to the controller 202.
[0020] The touchscreen controller 210 processes touch input provided on the touchscreen display 112 for usage by the convertible computing device
100. The embedded controller 212 similarly processes input provided on the keyboard 108 for usage by the computing device 100, and processes actuation of the power button 106 for usage by the device 100. During operation of the convertible computing device 100 in the tablet mode, the embedded controller 212 specifically and the controller 202 more generally may ignore input on the keyboard 108 and actuation of the power button 106. [0021] The BIOS 214 refers to hardware or hardware and instructions to initialize, control, or operate the convertible computing device 100, including prior to execution of the operating system of the computing device 100. Instructions included within the BIOS 214 may be software, firmware, microcode, or other programming that defines or controls functionality or operation of the BIOS 214. As one example, the BIOS 214 may be implemented using instructions, such as platform firmware of the convertible computing device 100, executable by a processor. The BIOS 214 may initialize, control, or operate components such as hardware components of the convertible computing device 100, and may load or boot the operating system of the computing device 100.
[0022] In some examples, the BIOS 214 may provide or establish an interface between the hardware devices or platform firmware of the convertible computing device 100 and the operating system of the computing device 100. The operating system may control or operate the hardware devices or platform firmware via this interface. In some examples, the BIOS 214 may implement the Unified Extensible Firmware Interface (UEFI) specification or another specification or standard for initializing, controlling, or operating the convertible computing device 100.
[0023] In the examples of FIGs. 2A and 2B, the embedded controller
212 receives a full-rotation signal from the sensor 204, per arrow 216, upon detection of full rotation of the upper enclosure 104 relative to the lower enclosure 102. The BIOS 214 in turns receives a signal from the embedded controller 212 corresponding to the full-rotation signal, per arrow 218. The BIOS 214 in response to receiving this signal operates the convertible computing device in the tablet mode.
[0024] In the example of FIG. 2A, the embedded controller 212 is communicatively connected to the touchscreen controller 210. The embedded controller 212 receives a reduced-power mode signal from the BIOS 214, per arrow 220, upon entry of the convertible computing device 100 into a reduced power mode during operation of the computing device 100 in the tablet mode. The touchscreen controller 210 in turn receives a signal from the embedded controller 212 corresponding to the reduced-power signal, per arrow 222. The embedded controller 212 and the touchscreen controller 210 remain powered in the reduced power mode.
[0025] The touchscreen controller 210 responsively detects the specified wake touch gesture on the touchscreen display 112 upon entry of the convertible computing device 100 into the reduced power mode during operation in the tablet mode, per arrow 224. The touchscreen controller 210 may detect the specified wake touch gesture on the touchscreen display 112 while the display 112 is operating at a reduced scan rate in the reduced power mode to further conserve power. When operating at the reduced scan rate, the touchscreen display 112 may not detect touch gestures, including the specified wake touch gesture, as quickly as when operating at a non-reduced scan rate, and/or may not be able to detect complex touch gestures. [0026] The embedded controller 212 receives a gesture-detect signal from the touchscreen controller 210 upon detection of the specified wake touch gesture on the touchscreen display 112, per arrow 226. The BIOS 214 in turn receives a signal from the embedded controller 212 corresponding to the gesture-detect signal, per arrow 228. The BIOS 214 in response to receiving this signal causes the convertible computing device 100 to exit the reduced power mode.
[0027] In the example of FIG. 2B, the BIOS 214 is communicatively connected to the touchscreen controller 210. The touchscreen controller 210 receives a reduced-power signal from the BIOS 214, per arrow 252 (as opposed to from the embedded controller 212 as in FIG. 2A), upon entry of the convertible computing device 100 into a reduced power mode during operation of the computing device 100 in the tablet mode. The touchscreen controller 210 remains powered on in the reduced power mode of the convertible computing device 100.
[0028] The touchscreen controller 210 responsively detects the specified wake touch gesture on the touchscreen display 112, which may be operating at a reduced scan rate, upon entry of the convertible computing device 100 into the reduced power mode during operation in the tablet mode, per arrow 224. The BIOS 214 receives a gesture-detect signal from the touchscreen controller 210 upon detection of the specified wake touch gesture on the touchscreen display 112, per arrow 254 (as opposed to receiving a corresponding signal from the embedded controller 212 as in FIG. 2A). The BIOS 214 in response to receiving the gesture-detect signal causes the convertible computing device 100 to exit the reduced power mode. [0029] In the examples that have been described, the convertible computing device 100 can exit a reduced power mode while operating in a tablet mode responsive to a wake touch gesture on the touchscreen display 112 of the computing device 100. In the tablet mode the power button 106 may be disabled, as may be the keyboard 108 and the pointing device 110. Therefore, the power button 106, the keyboard 108, and the pointing device 110 cannot be used to cause the convertible computing device 100 to exit the reduced power mode during operation of the computing device 100 in the tablet mode. The power button 106, the keyboard 108, and/or the pointing device 110 may be disabled during operation of the convertible computing device 100 in other modes. The wake touch gesture on the touchscreen display 112 may cause the computing device 100 to exit the reduced power mode during operation in other modes.
[0030] FIG. 3 shows a table of different example operating modes 302A, 302B, 302C, 302D, and 302E of the convertible computing device 100, which are collectively referred to as the operating modes 302. The table depicts whether the power button 106 is enabled or disabled in each operating mode 302 of the convertible computing device 100. The table further depicts whether the convertible computing device 100 can exit the reduced power mode while operating in each mode 302 responsive to a wake touch gesture on the touchscreen display 112.
[0031] The operating mode 302A of the convertible computing device
100 is a clamshell mode. In this operating mode 302A, the upper enclosure
104 may not have been rotated relative to the lower enclosure 102. That is, the upper enclosure 104 may be closed against the lower enclosure 102 such that the touchscreen display 112 faces the power button 106, the keyboard 108, and the pointing device 110, which are hidden from view in FIG. 3. The convertible computing device 100 may be operable in the operating mode 302A if the device 100 is communicatively connected to an external display device and an external input device, for instance. In the operating mode 302A, the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled, and the wake touch gesture on the touchscreen display 112 may not cause the convertible computing device 100 to exit a reduced power mode.
[0032] The operating mode 302B of the convertible computing device 100 is a stand mode. In this operating mode 302B, the upper enclosure 104 may be rotated between 270 and 360 degrees relative to the lower enclosure 102. The convertible computing device 100 may rest on an external surface such as a desktop or tabletop such that the power button 106, the keyboard 108, and the pointing device 110, which are hidden from view in view FIG. 3, are adjacent to the desktop or tabletop. In the operating mode 302B, the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled, and the wake touch gesture on the touchscreen display 112 may cause the convertible computing device 100 to exit a reduced power mode.
[0033] The operating mode 302C of the convertible computing device 100 is a tent mode. In the operating mode 302C, the upper enclosure 104 may be rotated by more than 180 degrees relative to the lower enclosure 102. The convertible computing device 100 may rest on an external surface such as a desktop or tabletop such that the touchscreen display 112 faces outwards, as do the power button 106, the keyboard 108, and the pointing device 110, which are hidden from view in FIG. 3. In the operating mode 302C, the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled. The wake touch gesture on the touchscreen display 112 may cause the computing device 100 to exit the reduced power mode.
[0034] The operating mode 302D of the convertible computing device 100 is a notebook mode in which the computing device 100 operates like a laptop or notebook computer, as in FIG. 1A. In the operating mode 302D, the upper enclosure 104 may be rotated at least 90 degrees relative to the lower enclosure 102. The convertible computing device 100 may rest on the surface of the lower enclosure 102 opposite the power button 106, the keyboard 108, and the pointing device 110. In the operating mode 302D, the power button 106 (as well as the keyboard 108 and/or the pointing device 110) are enabled, and therefore may be actuated to cause the convertible computing device 100 to exit a reduced power mode. The wake touch gesture on the touchscreen display 112 may also cause the convertible computing device 100 to exit the reduced power mode.
[0035] The operating mode 302E of the convertible computing device 100 is a tablet mode in which the computing device 100 operates like a standalone tablet computing device, as in FIG. 1 B. In the operating mode 302E, the upper enclosure 104 is fully rotated (e.g., 360 degrees) relative to the lower enclosure 102. The convertible computing device 100 may rest on the surface of the lower enclosure 102 at which the power button 106, the keyboard 108, and the pointing device 110 (which are hidden from view in FIG. 3) face outward. In the operating mode 302E, the power button 106 (as well as the keyboard 108 and/or the pointing device 110) may be disabled, and the wake touch gesture on the touchscreen display 112 may cause the convertible computing device 100 to exit the reduced power mode.
[0036] FIG. 4 shows a non-transitory computer-readable data storage medium 400 storing example program code 402 executable by the convertible computing device 100. For instance, the controller 202 may execute the program code 402. The program code 402 can include, responsive to full rotation of the enclosure 102 relative to the enclosure 104, operating the convertible computing device 100 in a tablet mode (404). The program code 402 can include disabling the power button 106 during operation of the convertible computing device 100 in the tablet mode (406). The program code 402 can include, upon entry of the convertible computing device 100 into a reduced power mode during operation in the tablet mode (408), detecting a wake touch gesture on the touchscreen display 112 (410). The program code 402 can include causing the convertible computing device 100 to exit the reduced power mode responsive to detection of the wake touch gesture on the touchscreen display 112 (412).
[0037] Techniques have been described for using a wake touch gesture on a touchscreen display of a convertible computing device to cause the computing device to exit a reduced power mode during operation in a tablet mode in which the power button of the computing device may be disabled. A user operating the convertible computing device in the tablet mode can therefore more easily and conveniently cause the computing device to exit the reduced power mode. The user does not, for instance, have to first transition to the convertible computing device to a different operating mode, like a notebook mode, before causing the computing device to exit the reduced power mode via the power button, keyboard, or pointing device.

Claims

We claim:
1 . A convertible computing device comprising: a first enclosure housing a power button that is disabled during operation of the convertible computing device in a tablet mode; a second enclosure housing a touchscreen display device, wherein the touchscreen display device is rotatable relative to the first enclosure to cause the convertible computing device to enter the tablet mode; and a controller to, upon entry of the convertible computing device into a reduced power mode during the operation in the tablet mode, cause the convertible computing device to exit the reduced power mode responsive to a wake touch gesture on the touchscreen display device.
2. The convertible computing device of claim 1 , wherein the controller comprises: a touchscreen controller to detect the wake touch gesture on the touchscreen display device; an embedded controller communicatively connected to the touchscreen controller to receive a gesture-detect signal from the touchscreen controller upon detection of the wake touch gesture on the touchscreen display device; and a basic input/output system (BIOS) communicatively connected to the embedded controller, the BIOS to receive a signal from the embedded controller corresponding to the gesture-detect signal and to responsively cause the convertible computing device to exit the reduced power mode.
3. The convertible computing device of claim 2, wherein the embedded controller is to receive a reduced-power mode signal from the BIOS upon the entry of the convertible computing device into the reduced power mode during the operation in the tablet mode, wherein the touchscreen controller is to receive a signal from the embedded controller corresponding to the reduced-power mode signal and is to responsively detect the wake touch gesture on the touchscreen display device.
4. The convertible computing device of claim 2, further comprising: a sensor communicatively connected to the embedded controller, the sensor to detect full rotation of the second enclosure relative to the first enclosure, wherein the embedded controller is to receive a full-rotation signal from the sensor upon detection of the full rotation of the second enclosure relative to the first enclosure, and wherein the BIOS is to receive a signal from the embedded controller corresponding to the full-rotation signal and is to responsively operate the convertible computing device in the tablet mode.
5. The convertible computing device of claim 1 , wherein the controller comprises: a touchscreen controller to detect the wake touch gesture on the touchscreen display device; and a basic input/output system (BIOS) communicatively connected to the touchscreen controller, the BIOS to receive a gesture-detect signal from the touchscreen controller upon detection of the wake touch gesture on the touchscreen display device and is to responsively cause the convertible computing device to exit the reduced power mode.
6. The convertible computing device of claim 5, wherein the touchscreen controller is to receive a reduced-power mode signal from the BIOS upon the entry of the convertible computing device into the reduced power mode during the operation in the tablet mode and is to responsively detect the wake touch gesture on the touchscreen display device.
7. The convertible computing device of claim 5, further comprising: a sensor to detect full rotation of the second enclosure relative to the first enclosure, corresponding to entry of the convertible computing device into the tablet mode; an embedded controller communicatively connected to the BIOS and to the sensor, the embedded controller to receive a full-rotation signal from the sensor upon detection of the full rotation of the second enclosure relative to the first enclosure, wherein the BIOS is to receive a signal from the embedded controller corresponding to the full-rotation signal and is to responsively operate the convertible computing device in the tablet mode.
8. The convertible computing device of claim 1 , wherein the controller is communicatively connected to the power button and is to ignore actuation of the power button during the operation of the convertible computing device in the tablet mode.
18
9. The convertible computing device of claim 1 , wherein the controller is further to cause the convertible computing device to exit the reduced power mode responsive to the wake touch gesture on the touchscreen display device upon entry of the convertible computing device into the reduced power mode during operation in a tent mode or a stand mode.
10. A non-transitory computer-readable data storage medium storing program code executable by a convertible computing device to: disable a power button housed in a first enclosure of the convertible computing device during operation of the convertible computing device in a tablet mode; upon entry of the convertible computing device into a reduced power mode during the operation in the tablet mode, detect a wake touch gesture on a touchscreen display device housed in a second enclosure of the convertible computing device that is rotatable relative to the first enclosure; and cause the convertible computing device to exit the reduced power mode responsive to detection of the wake touch gesture on the touchscreen display device.
11 . The non-transitory computer-readable data storage medium of claim 10, wherein the program code is executable by the convertible computing device to operate in the tablet mode responsive to full rotation of the first enclosure relative to the second enclosure.
12. The non-transitory computer-readable data storage medium of claim 10, wherein the program code is executable by the convertible computing device
19 to disable a keyboard housed in the first enclosure of the convertible computing device during operation in the tablet mode.
13. A controller for a convertible computing device, comprising: an embedded controller communicatively connected to a power button housed in a first enclosure of the convertible computing device and to disable the power button during operation of the convertible computing device in a tablet mode; a touchscreen controller communicatively connected to the embedded control and to a touchscreen display device housed in a second enclosure of the convertible computing device that is rotatable relative to the first enclosure, wherein the touchscreen controller is to, upon entry of the convertible computing device into a reduced power mode during the operation in the tablet mode, detect a wake touch gesture on the touchscreen display device; and a basic input/output system (BIOS) communicatively connected to the embedded controller and to the touchscreen controller, and to cause the convertible computing device to exit the reduced power mode upon detection of the wake touch gesture on the touchscreen display device.
14. The controller of claim 13, wherein the embedded controller further is communicatively connected to a sensor to detect full rotation of the second enclosure relative to the first enclosure, and wherein the BIOS further is to cause the convertible computing device to operate in the tablet mode responsive to detection of the full rotation of the first enclosure relative to the second enclosure.
20
15. The controller of claim 13, wherein the embedded controller further is communicatively connected to a keyboard housed in the first enclosure, and is to disable the keyboard during operation of the convertible computing device in the tablet mode.
21
PCT/US2020/050327 2020-09-11 2020-09-11 Reduced power mode exit WO2022055494A1 (en)

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US20070061564A1 (en) * 2003-08-11 2007-03-15 Lg Electronics Inc. Convertible computer
US20120154303A1 (en) * 2010-09-24 2012-06-21 Research In Motion Limited Method for conserving power on a portable electronic device and a portable electronic device configured for the same
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US9875718B1 (en) * 2014-03-18 2018-01-23 Google Llc Electrochromic two way display for two in one laptop/tablet form factors

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Publication number Priority date Publication date Assignee Title
US20040169995A1 (en) * 2003-02-14 2004-09-02 Prosenjit Ghosh Convertible and detachable laptops
US20070061564A1 (en) * 2003-08-11 2007-03-15 Lg Electronics Inc. Convertible computer
US20120154303A1 (en) * 2010-09-24 2012-06-21 Research In Motion Limited Method for conserving power on a portable electronic device and a portable electronic device configured for the same
US9875718B1 (en) * 2014-03-18 2018-01-23 Google Llc Electrochromic two way display for two in one laptop/tablet form factors
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