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US20110221691A1 - Handheld device capable of automatically switching between a handheld mode and a non-handheld mode and control method thereof - Google Patents

Handheld device capable of automatically switching between a handheld mode and a non-handheld mode and control method thereof Download PDF

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Publication number
US20110221691A1
US20110221691A1 US13/038,367 US201113038367A US2011221691A1 US 20110221691 A1 US20110221691 A1 US 20110221691A1 US 201113038367 A US201113038367 A US 201113038367A US 2011221691 A1 US2011221691 A1 US 2011221691A1
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US
United States
Prior art keywords
sensing
handheld
mode
handheld device
mode control
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Abandoned
Application number
US13/038,367
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English (en)
Inventor
Hsin-Hao Lee
Chia-Jun Chia
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HTC Corp
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HTC Corp
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Filing date
Publication date
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Assigned to HTC CORPORATION reassignment HTC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Chia, Chia-Jun, Lee, Hsin-Hao
Publication of US20110221691A1 publication Critical patent/US20110221691A1/en
Priority to US13/901,557 priority Critical patent/US8963871B2/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/96071—Capacitive touch switches characterised by the detection principle
    • H03K2217/960715—Rc-timing; e.g. measurement of variation of charge time or discharge time of the sensor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector

Definitions

  • the present invention relates to a handheld device capable of automatically switching handheld mode/non-handheld mode and related control methods, and more particularly, to a handheld device and related control methods for sensing whether a user touch is received or not via a sensing unit and for controlling the sensing unit via a control unit in order to differentiate handheld behaviors from non-handheld behaviors.
  • handheld devices such as mobile phones and personal digital assistants (PDAs) have become one of the most popular communication tools.
  • PDAs personal digital assistants
  • the handheld device is defined as “a device to be held by a hand of a user”
  • the existing handheld device itself is unable to know whether it is held by the hand of a user and is unable to automatically adjust settings of the handheld device in response to “handheld behaviors” and “non-handheld behaviors”. For this reason, it's a “smart” handheld device cannot be created, which causes inconvenience to the users in many applications.
  • a handheld device capable of automatically switching handheld mode/non-handheld mode.
  • the handheld device may include a sensing unit, a control unit, an operating unit, and a mode control unit.
  • the sensing unit is arranged for generating a sensing result based on whether a user touch is received or not.
  • the control unit is arranged for sending out a charging-and-discharging signal to the sensing unit, and for making use of the charging-and-discharging signal to charge and discharge the sensing unit.
  • the operating unit is coupled to the sensing unit, and is arranged for generating a mode control signal according to the sensing result.
  • the mode control unit is coupled to the operating unit, and is arranged for controlling the handheld device to stay in a handheld mode or a non-handheld mode according to the mode control signal.
  • the sensing result may be a sensing voltage
  • the operating unit may be a voltage comparator.
  • a handheld device capable of automatically switching handheld mode/non-handheld mode.
  • the handheld device may include a sensing unit, a control unit, an operating unit, and a mode control unit.
  • the sensing unit is arranged for generating a sensing result based on whether a user touch is received or not.
  • the control unit is arranged for sending out a periodic pulse to the sensing unit, and for making use of the periodic pulse to periodically charge and discharge the sensing unit.
  • the counting module is coupled to the control unit and the sensing unit, and is arranged for counting a pulse number of the periodic pulse, and for outputting a counting value when the sensing result indicates that the user touch is received.
  • the operating unit is coupled to the counting module, and is arranged for generating a mode control signal according to the counting value.
  • the mode control unit is coupled to the operating unit, and is arranged for controlling the handheld device to stay in a handheld mode or a non-handheld mode according to the mode control signal.
  • the counting module may include a counter and a voltage comparator.
  • a method for controlling modes of a handheld device includes the following steps: sending out a charging-and-discharging signal to a sensing unit, and making use of the charging-and-discharging signal to charge and discharge the sensing unit; the sensing unit generating a sensing result based on whether a user touch is received or not; generating a mode control signal according to the sensing result; and controlling the handheld device to stay in a handheld mode or a non-handheld mode according to the mode control signal.
  • a method for controlling modes of a handheld device includes the following steps: sending out a periodic pulse to a sensing unit, and making use of the periodic pulse to periodically charge and discharge the sensing unit; the sensing unit generating a sensing result based on whether a user touch is received or not; counting a pulse number of the periodic pulse, and outputting a counting value when the sensing result indicates that the user touch is received; generating a mode control signal according to the counting value; and controlling the handheld device to stay in a handheld mode or a non-handheld mode according to the mode control signal.
  • FIG. 1 is diagram of a handheld device capable of automatically switching handheld mode/non-handheld mode according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating the handheld device shown in FIG. 1 according to a first embodiment of the present invention.
  • FIG. 3 is a diagram showing signal waveforms of the sensing voltage generated by the sensing unit shown in FIG. 2 under a first condition that a user touch is not received and a second condition that a user touch is received.
  • FIG. 4 is a block diagram illustrating the handheld device shown in FIG. 1 according to a second embodiment of the present invention.
  • FIG. 5 is a diagram showing signal waveforms of the sensing voltage generated by the sensing unit shown in FIG. 4 during the discharging stage and the charging stage (including a first condition that a user touch is not received and a second condition that a user touch is received).
  • FIG. 6 is a flowchart illustrating a method for controlling modes of a handheld device according to an exemplary embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating a method for controlling modes of a handheld device according to another exemplary embodiment of the present invention.
  • FIG. 1 is diagram of a handheld device 100 capable of automatically switching handheld mode/non-handheld mode according to an embodiment of the present invention
  • FIG. 2 is a block diagram illustrating the handheld device 100 shown in FIG. 1 according to a first embodiment of the present invention.
  • the handheld device 100 may include a control unit 110 and a sensing unit 120 .
  • the sensing unit 120 may be implemented by a conductive material, wherein the conductive material may be attached to the outside surface of the housing of the handheld device 100 or may be embedded in the housing of the handheld device 100 .
  • the sensing unit 120 can be used for sensing whether a user touch is received or not by way of indirect induction or direct contact.
  • the control unit 110 is coupled to the sensing unit 120 , and is arranged for controlling operations of the sensing unit 120 .
  • the handheld device 100 may include, but is not limited to, a control unit 110 , a sensing unit 120 , an operating unit 130 , and a mode control unit 140 .
  • the control unit 110 is arranged for sending out a charging-and-discharging signal Scharge to the sensing unit 120 , and for making use of the charging-and-discharging signal Scharge to charge and discharge the sensing unit 120 .
  • the charging-and-discharging signal Scharge may be a periodic pulse, and thus the control unit 110 may utilize the periodic pulse to periodically charge and discharge the sensing unit 120 .
  • the sensing unit 120 is coupled to the control unit 110 , and may be arranged for generating a sensing result based on whether a user touch is received or not.
  • the sensing result generated by the sensing unit 120 may be implemented by a sensing voltage Vs, but this in no way should be a limitation of the present invention.
  • the operating unit 130 is coupled to the sensing unit 120 , and is arranged for generating a mode control signal SC to the mode control unit 140 according to the sensing result (i.e., the sensing voltage Vs).
  • the mode control unit 140 is coupled to the operating unit 130 , and is arranged for controlling the handheld device 100 to stay in a handheld mode MD 1 or a non-handheld mode MD 2 according to the mode control signal SC.
  • the operating unit 130 may be implemented by a voltage comparator (e.g., 132 ), but this in no way should be a limitation of the present invention.
  • the voltage comparator 132 is arranged for comparing the sensing voltage Vs with a threshold voltage V TH in order to generate the mode control signal SC to the mode control unit 140 .
  • the mode control signal SC has a first logic level (such as, “1”).
  • the mode control unit 140 may control the handheld device 100 to stay in the handheld mode MD 1 according to the mode control signal SC with the first logic level.
  • the mode control signal SC has a second logic level (such as, “0”).
  • the mode control unit 140 may control the handheld device 100 to stay in the non-handheld mode MD 2 according to the mode control signal SC with the second logic level.
  • the handheld device 100 disclosed in the present invention utilizes the sensing unit 120 (which may be implemented by a conductive material attached to the outside surface of the housing of the handheld device 100 or embedded in the housing of the handheld device 100 ) to sense whether a user touch is received or not, and utilizes the control unit 110 to charge and discharge the sensing unit 120 so as to achieve the goal of differentiating handheld behaviors from non-handheld behaviors.
  • the sensing unit 120 which may be implemented by a conductive material attached to the outside surface of the housing of the handheld device 100 or embedded in the housing of the handheld device 100
  • the control unit 110 to charge and discharge the sensing unit 120 so as to achieve the goal of differentiating handheld behaviors from non-handheld behaviors.
  • FIG. 3 is a diagram showing signal waveforms of the sensing voltage Vs generated by the sensing unit 120 shown in FIG. 2 under a first condition that a user touch is not received and a second condition that a user touch is received.
  • the control unit 110 may make use of the charging-and-discharging signal Scharge to periodically charge and discharge the sensing unit 120 , the control unit 110 and the sensing unit 120 may form a charging path during a charging stage, and the control unit 110 and the sensing unit 120 may form a discharging path during a discharging stage. Therefore, the sensing voltage Vs of the sensing unit 120 can be maintained at a fixed potential V 1 , such as a first curve S 1 shown in FIG. 3 .
  • the discharging path and discharging loop of the sensing unit 120 will be changed.
  • the fingers or body of the user, the control unit 110 , the sensing unit 120 , and the ground terminal may form another discharging path, and the handheld device 100 may lead out electric charges of the sensing unit 120 via the new discharging path. Therefore, the potential of the sensing voltage Vs of the sensing unit 120 will be changed (decreased), such as a second curve S 2 shown in FIG. 3 . That is, the sensing voltage Vs of the sensing unit 120 will be lowered down to another potential V 2 .
  • the abovementioned handheld device 100 may be a mobile phone, a personal digital assistant (PDA), a PDA phone, or a smart phone. But the present invention is not limited to this only, and it can be implemented by a handheld device of other types.
  • the abovementioned handheld mode MD 1 /non-handheld mode MD 2 can be related to application settings of the handheld device 100 , such as: call vibration control, auto-switch between speaker mode and handheld mode, and volume control.
  • call vibration control such as: call vibration control, auto-switch between speaker mode and handheld mode, and volume control.
  • FIG. 4 is a block diagram illustrating the handheld device shown in FIG. 1 according to a second embodiment of the present invention.
  • the handheld device 400 may include, but is not limited to, a control unit 410 , a sensing unit 420 , an operating unit 430 , a mode control unit 440 , a counting module 450 , a first switch SW 1 , and a second switch SW 2 .
  • the operations of the control unit 410 and the sensing unit 420 shown in FIG. 4 are similar to the operations of the control unit 110 and the sensing unit 120 shown in FIG. 2 , and the same description is omitted here for brevity.
  • the control unit 410 is further arranged for generating an enable signal EN to the counting module 450 , for generating a first switch signal SS 1 to the first switch SW 1 , and for generating a second switch signal SS 2 to the second switch SW 2 .
  • the counting module 450 is coupled to the control unit 410 and the sensing unit 420 .
  • the enable signal EN is received by the counting module 450
  • the counting module 450 may start counting a pulse number of the charging-and-discharging signal Scharge (such as, a periodic pulse) sent by the control unit 410 .
  • the counting module 450 may stop counting the pulse number of the charging-and-discharging signal Scharge (such as, a periodic pulse) in order to output a counting value Nc, wherein the counting value Nc is corresponding to a counting time.
  • the operating unit 430 is coupled to the counting module 450 , and is arranged for generating a mode control signal Sc to the mode control unit 440 according to the counting value Nc (or the corresponding counting time).
  • the mode control unit 440 is coupled to the operating unit 430 , and is arranged for controlling the handheld device 400 to stay in a handheld mode MD 1 or a non-handheld mode MD 2 according to the mode control signal SC.
  • the counting module 450 may be implemented by a voltage comparator 452 and a counter 454 .
  • the voltage comparator 452 is arranged for comparing the sensing voltage Vs with a threshold voltage V TH in order to determine whether to output a disable signal #EN. For example, when the sensing voltage Vs is greater than the threshold voltage V TH , the voltage comparator 452 will output the disable signal #EN to the counter 454 ; and when the sensing voltage Vs is not greater than the threshold voltage V TH , the voltage comparator 452 will not output the disable signal #EN to the counter 454 .
  • the counter 454 is coupled to the voltage comparator 452 , and is arranged for starting counting the pulse number of the charging-and-discharging signal Scharge (e.g., a periodic pulse) when the enable signal EN is received, and for stopping counting the pulse number of the charging-and-discharging signal Scharge to obtain the counting value Nc (or the corresponding counting time) when the disable signal #EN is received.
  • the pulse number of the charging-and-discharging signal Scharge e.g., a periodic pulse
  • the operating unit 430 can be implemented by a comparator (e.g., 432 ), but the present invention is not limited to this only.
  • the comparator 432 compares the counting value Nc with a threshold value N TH in order to generate the mode control signal SC to the mode control unit 440 .
  • the mode control signal SC has a first logic level (such as, “1”).
  • the mode control unit 440 may utilize the mode control signal SC with the first logic level to control the handheld device 400 to stay in the handheld mode MD 1 .
  • the mode control signal SC has a second logic level (such as, “0”).
  • the mode control unit 440 may utilize the mode control signal SC with the second logic level to control the handheld device 400 to stay in the non-handheld mode MD 2 .
  • the first switch SW 1 is coupled between the control unit 410 and the sensing unit 420 .
  • the control unit 410 is further arranged for determining whether to turn on or turn off the first switch SW 1 according to the first switch signal SS 1 in order to determine whether to transmit the charging-and-discharging signal Scharge to the sensing unit 420 .
  • the second switch SW 2 is coupled between the sensing unit 420 and a ground terminal.
  • the control unit 410 is further arranged for determining whether to turn on or turn off the second switch SW 2 according to the second switch signal SS 2 . What calls for special attention is that: during a charging stage, the first switch SW 1 is turned on and the second switch SW 2 is turned off.
  • control unit 410 the first switch SW 1 , and the sensing unit 420 form a charging path.
  • the first switch SW 1 is turned off and the second switch SW 2 is turned on.
  • the second switch SW 2 and the sensing unit 420 form a discharging path.
  • FIG. 5 is a diagram showing signal waveforms of the sensing voltage Vs generated by the sensing unit 420 shown in FIG. 4 during the discharging stage and the charging stage (including a first condition that a user touch is not received and a second condition that a user touch is received).
  • the electronic charges on the conductive material of the sensing unit 420 are exhausted through the discharging path, such as a fifth curve S 5 shown in FIG. 5 .
  • the charging path is connected during the charging stage.
  • two conditions are cited for illustration.
  • the control unit 410 may make use of the charging-and-discharging signal Scharge to periodically charge and discharge the sensing unit 420 , the sensing voltage Vs of the sensing unit 420 will be charged to reach a predetermined potential VD within a time period t 1 (at this time, the counting value Nc is corresponding to a pulse number of N 1 pulses), such as a third curve S 3 shown in FIG. 5 .
  • the sensing unit 420 of the handheld device 400 Under a second condition that the fingers or body of the user do touch the sensing unit 420 of the handheld device 400 (that is, the condition that a user touch is received), the equivalent charge quantity will be changed due to the touch of the fingers or body of the user. For this reason, the charging time of the sensing unit 420 will be changed. At this time, after a time period t 2 (at this time, the counting value Nc is corresponding to a pulse number of N 2 pulses), the sensing unit 420 will be charged to reach the predetermined potential VD, such as a fourth curve S 4 shown in FIG. 5 .
  • the mode control unit 140 may control the handheld device 100 to stay in the non-handheld mode MD 2 .
  • the sensing voltage Vs will be lowered down to the potential V 2 and is smaller than the threshold voltage V TH (i.e., Vs ⁇ V TH ).
  • the mode control unit 140 may control the handheld device 100 to stay in the handheld mode MD 1 .
  • the sensing voltage Vs of the sensing unit 420 will be charged to reach the predetermined potential VD after the time period t 1 . That is to say, the counting value Nc (or the counting time) obtained by the counting module 450 is smaller (i.e., Nc ⁇ N TH ).
  • the mode control unit 440 may control the handheld device 400 to stay in the non-handheld mode MD 2 .
  • the sensing voltage Vs of the sensing unit 420 will be charged to reach the predetermined potential VD after the time period t 2 . That is to say, the counting value Nc (or the counting time) obtained by the counting module 450 is larger (i.e., Nc ⁇ N TH ).
  • the mode control unit 440 may control the handheld device 400 to stay in the handheld mode MD 1 . Therefore, the handheld device 100 / 400 can achieve a goal of automatically switching or controlling the handheld mode/non-handheld mode, which can add more functionality to the handheld device 100 / 400 and bring more convenience to the user.
  • FIG. 6 is a flowchart illustrating a method for controlling modes of a handheld device according to an exemplary embodiment of the present invention. Please note that the following steps are not limited to be performed according to the exact sequence shown in FIG. 6 if a roughly identical result can be obtained.
  • the method includes, but is not limited to, the following steps:
  • Step S 600 Start.
  • Step S 602 Send out a charging-and-discharging signal to a sensing unit, and make use of the charging-and-discharging signal to charge and discharge the sensing unit.
  • Step S 604 The sensing unit generates a sensing result (a sensing voltage) based on whether a user touch is received or not.
  • Step S 606 Compare the sensing voltage with a threshold voltage. When the sensing voltage is smaller than the threshold voltage, go to the step S 610 ; otherwise, go to the step S 620 .
  • Step S 610 When the sensing voltage is smaller than the threshold voltage, generate a mode control signal with a first logic level.
  • Step S 612 Control the handheld device to stay in a handheld mode according to the mode control signal with the first logic level.
  • Step S 620 When the sensing voltage is not smaller than the threshold voltage, generate a mode control signal with a second logic level.
  • Step S 622 Control the handheld device to stay in a non-handheld mode according to the mode control signal with the second logic level.
  • FIG. 7 is a flowchart illustrating a method for controlling modes of a handheld device according to another exemplary embodiment of the present invention. The method includes, but is not limited to, the following steps:
  • Step S 700 Start.
  • Step S 702 Send out a periodic pulse to a sensing unit, and make use of the periodic pulse to periodically charge and discharge the sensing unit.
  • Step S 704 The sensing unit generates a sensing result based on whether a user touch is received or not.
  • Step S 706 Count a pulse number of the periodic pulse, and output a counting value when the sensing result indicates that the user touch is received.
  • Step S 708 Compare the counting value with a threshold value. When the counting value is greater than the threshold value, go to the step S 710 ; otherwise, go to the step S 720 .
  • Step S 710 When the counting value is greater than the threshold value, generate the mode control signal with a first logic level.
  • Step S 712 Control the handheld device to stay in a handheld mode according to the mode control signal with the first logic level.
  • Step S 720 When the counting value is not greater than the threshold value, generate the mode control signal with a second logic level.
  • Step S 722 Control the handheld device to stay in a non-handheld mode according to the mode control signal with the second logic level.
  • the present invention provides a handheld device capable of automatically switching between a handheld mode and a non-handheld mode and a related control method.
  • a sensing unit which can be implemented by a conductive material attached to the outside surface of the housing of the handheld device or embedded in the housing of the handheld device
  • a control unit to charge and discharge the sensing unit
  • the original discharging path and electric charges will be changed under the condition that the sensing unit (such as, the conductive material) of the handheld device is touched by the fingers or body of the user, such that handheld behaviors and non-handheld behaviors can be differentiated. Therefore, the settings of the handheld device can be automatically adjusted in response to the handheld behaviors and the non-handheld behaviors.
  • application functions such as: call vibration control, auto-switch between speaker mode and handheld mode, and volume control can be added to the handheld device.
  • the mechanism disclosed in the present invention can add more functionality to the handheld device and bring more convenience to the user.

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  • Engineering & Computer Science (AREA)
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  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • User Interface Of Digital Computer (AREA)
US13/038,367 2010-03-11 2011-03-01 Handheld device capable of automatically switching between a handheld mode and a non-handheld mode and control method thereof Abandoned US20110221691A1 (en)

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US20160212710A1 (en) * 2015-01-15 2016-07-21 Mediatek Inc. Power Saving Mechanism for In-Pocket Detection
CN106292968A (zh) * 2015-05-28 2017-01-04 宏达国际电子股份有限公司 电子系统、穿戴式电子装置及其电源控制方法

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KR102410103B1 (ko) * 2017-11-17 2022-06-21 엘지디스플레이 주식회사 터치센서 내장형 표시장치

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