TWI442379B - Mobile device adjustment brightness system and method - Google Patents
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Description
本發明主要關於行動裝置調節亮度技術，特別係有關於根據加速度感測器(Accelerometer Meter)或陀螺儀(Gyro)之感測值決定是否調節亮度之技術。 The present invention relates generally to a technique for adjusting brightness of a mobile device, and more particularly to a technique for determining whether to adjust brightness based on a sensed value of an Accelerometer Meter or a Gyro.
由於行動裝置越來越普及，使用行動裝置(如手機、平板電腦)的使用者也越來越多，當使用者在不同地方、不同場合中使用行動裝置時，通常行動裝置會為了節省螢幕背光所產生的耗電問題，利用螢幕上方的環境亮度感測器(Ambient Light Sensor,ALS)，根據不同的環境亮度，做出適當的螢幕亮度調整，以達到使用者適合閱讀程度的前提下，最暗的適合亮度。 As mobile devices become more and more popular, there are more and more users using mobile devices (such as mobile phones and tablet computers). When users use mobile devices in different places and in different occasions, mobile devices usually save screen backlights. The power consumption problem generated by the Ambient Light Sensor (ALS) above the screen is used to adjust the brightness of the screen according to the brightness of the environment to achieve the user's readability. Dark for brightness.
但是使用者使用行動裝置的地點不一定都會像桌上型電腦在室內或在固定位置使用，有可能是在戶外亮度比較複雜的地方使用或是一邊移動一邊使用，例如：在露天的咖啡座使用行動裝置，此時若是坐著不動，但是背後有人走過或是樹葉飄動會有影子晃動，都會造成環境亮度變化而使得環境亮度感測器不斷產生不同環境亮度資訊，行動裝置也根據不同環境亮度資訊不斷調整螢幕亮度，使用者的螢幕就會因此忽亮忽暗的改變，因而造成使用者使用行動裝置上的困擾。 However, the location where the user uses the mobile device may not be used indoors or in a fixed position like a desktop computer. It may be used in a place where the outdoor brightness is more complicated or used while moving, for example, in an open-air cafe. The mobile device, if it is sitting still, but there is a person walking behind or the leaves fluttering, there will be shadow shaking, which will cause the ambient brightness to change, so that the ambient brightness sensor continuously generates different environmental brightness information, and the mobile device also has different brightness according to different environments. The information constantly adjusts the brightness of the screen, and the user's screen will change brightly and faintly, causing the user to use the mobile device.
有鑑於上述先前技術之問題，本發明提供了一種行動裝置調節亮度系統和方法，可利用移動感測器之感測值決定是否啟動環境亮度感測器調節行動裝置之亮度。 In view of the above prior art problems, the present invention provides a mobile device adjusting brightness system and method, and the sensing value of the mobile sensor can be used to determine whether to activate the ambient brightness sensor to adjust the brightness of the mobile device.
根據本發明之一實施例提供了一種行動裝置調節亮度系統，包括：一顯示裝置；一環境亮度感測器，用以感測環境之一亮度，產生一環境亮度資訊；一移動感測器，用以產生一感測值，並相應一移動更新上述感測值；以及一處理裝置，根據上述環境亮度資訊調整上述顯示裝置之亮度，調整完後即失能上述環境亮度感測器，於上述環境亮度感測器失能之狀態中，當更新前後之上述感測值的一變化量大於一預設閥值時，產生一觸發訊息，並每隔一段時間偵測上述感測值，直到更新前後之上述感測值的上述變化量小於上述預設閥值時，重新啟動上述環境亮度感測器。 According to an embodiment of the present invention, a mobile device adjustment brightness system includes: a display device; an ambient brightness sensor for sensing brightness of one of the environments to generate an ambient brightness information; and a motion sensor, For generating a sensing value, and correspondingly moving the updated sensing value; and a processing device, adjusting brightness of the display device according to the ambient brightness information, and disabling the ambient brightness sensor after the adjusting, In a state in which the ambient brightness sensor is disabled, when a change amount of the sensed value before and after the update is greater than a preset threshold, a trigger message is generated, and the sensed value is detected at intervals until the update When the amount of change of the above-mentioned sensed values is less than the preset threshold, the ambient brightness sensor is restarted.
根據本發明之一實施例提供了一種行動裝置調節亮度方法，包括：利用一環境亮度感測器感測環境之一亮度，產生一環境亮度資訊；利用一移動感測器，產生一感測值，並相應一移動更新上述感測值；根據上述環境亮度資訊調整一顯示裝置之亮度，調整完後即失能上述環境亮度感測器；以及於上述環境亮度感測器失能之狀態中，當更新前後之上述感測值的一變化量大於一預設閥值時，產生一觸發訊息，並每隔一段時間偵測上述感測值，直到更新前後之上述感測值的上述變化量小於上述預設閥值時，重新啟動上述環境亮度感測器。 According to an embodiment of the present invention, a method for adjusting brightness of a mobile device includes: using an ambient brightness sensor to sense brightness of one of the environments to generate an ambient brightness information; and using a motion sensor to generate a sensed value And correspondingly moving the updated sensing value; adjusting the brightness of a display device according to the ambient brightness information, disabling the ambient brightness sensor after the adjustment; and in the state that the ambient brightness sensor is disabled, When a change amount of the sensed value before and after the update is greater than a preset threshold, a trigger message is generated, and the sensed value is detected at intervals, until the change amount of the sensed value before and after the update is less than When the preset threshold is exceeded, the ambient brightness sensor is restarted.
第1圖係顯示根據本發明一實施例所述之行動裝置調節亮度系統100之架構圖。如圖所示，根據本發明一實施例所述之行動裝置調節亮度系統100，包括，顯示裝置110、環境亮度感測器120、移動感測器130、處理裝置140。環境亮度感測器120用以感測週遭環境之亮度，並產生一環境亮度資訊S1至處理裝置140，處理裝置140即根據環境亮度資訊S1調整顯示裝置110所顯示之亮度，調整完畢後即失能環境亮度感測器120。 1 is a block diagram showing a mobile device adjustment brightness system 100 according to an embodiment of the invention. As shown in the figure, the mobile device adjusts the brightness system 100 according to an embodiment of the invention, including a display device 110, an ambient brightness sensor 120, a motion sensor 130, and a processing device 140. The ambient brightness sensor 120 is configured to sense the brightness of the surrounding environment and generate an ambient brightness information S1 to the processing device 140. The processing device 140 adjusts the brightness displayed by the display device 110 according to the ambient brightness information S1. The ambient brightness sensor 120 can be used.
移動感測器130則用以根據行動裝置之位置產生一感測值S2至處理裝置140，並相應行動裝置之移動更改感測值S2。在環境亮度感測器120為失能之狀態中，且當使用者移動行動裝置時，移動感測器130即根據移動行動裝置所產生之方向或位置變化來更新感測值S2。當更新前後之感測值S2的變化量大於一預設閥值時，處理裝置140即產生一觸發訊息，用以告知行動裝置目前是處於移動之狀態，並每隔一段時間偵測感測值S2且根據行動裝置移動之方向或角度調整感測值S2，直到更新前後之感測值S2的變化量小於一預設閥值時，表示手持裝置已不再移動且處於靜止之狀態，處理裝置140即重新啟動環境亮度感測器120，重新偵測手持裝置目前所在環境中的亮度，調整顯示裝置110所顯示之亮度，調整完後再將環境亮度感測器120失能，處理裝置140則持續偵測感測值S2。在此所述更新前後之感測值S2的變化量，係指偵測到之感測值S2與前一次所偵測到之感測值 S2之間的變化量，舉例來說，假設每10分鐘偵測一次感測值S2，當某一時點偵測之感測值S2與前10分鐘所偵測到之感測值S2之間的變化量大於一預設閥值時，就表示行動裝置目前是處於移動之狀態，直到所偵測到之感測值S2與其前10分鐘所偵測到之感測值S2之間的變化量小於一預設閥值時，即表示行動裝置已不再移動且處於靜止之狀態。 The motion sensor 130 is configured to generate a sensing value S2 to the processing device 140 according to the position of the mobile device, and change the sensing value S2 according to the movement of the corresponding mobile device. In a state where the ambient brightness sensor 120 is disabled, and when the user moves the mobile device, the motion sensor 130 updates the sensed value S2 according to the direction or position change generated by the mobile mobile device. When the amount of change of the sensed value S2 before and after the update is greater than a predetermined threshold, the processing device 140 generates a trigger message to notify the mobile device that the mobile device is currently in a moving state, and detects the sensed value at intervals. S2, and adjusting the sensing value S2 according to the direction or angle of movement of the mobile device, until the change amount of the sensing value S2 before and after the update is less than a preset threshold, indicating that the handheld device is no longer moving and is in a stationary state, the processing device 140, restarting the ambient brightness sensor 120, re-detecting the brightness of the environment in which the handheld device is currently located, adjusting the brightness displayed by the display device 110, and disabling the ambient brightness sensor 120 after the adjustment, the processing device 140 The sensed value S2 is continuously detected. The amount of change in the sensed value S2 before and after the update refers to the detected sensed value S2 and the sensed value detected the previous time. The amount of change between S2, for example, assumes that the sensed value S2 is detected every 10 minutes, between the sensed value S2 detected at a certain time point and the sensed value S2 detected in the first 10 minutes. When the amount of change is greater than a predetermined threshold, it indicates that the mobile device is currently in a moving state until the detected change between the sensed value S2 and the sensed value S2 detected in the first 10 minutes is less than When a preset threshold is reached, it means that the mobile device is no longer moving and is in a stationary state.
根據本發明一實施例，移動感測器130係指一加速度感測器(Accelerometer Meter)或一陀螺儀(Gyro)，行動裝置若在x,y,z軸旋轉或是移動時，代表著行動裝置的方向或位置改變，移動感測器130就根據行動裝置的方向或位置改變來更改上述感測值S2。 According to an embodiment of the invention, the motion sensor 130 refers to an Accelerometer Meter or a Gyro, and the mobile device represents an action if it rotates or moves on the x, y, and z axes. The direction or position of the device changes, and the motion sensor 130 changes the sensed value S2 according to the direction or position change of the mobile device.
根據本發明一實施例，當使用者按下電源鍵將手持裝置開機時，處理裝置140即將螢幕亮度調到可供使用者將顯示裝置110解鎖之最低亮度，使用者將顯示裝置110解鎖後，環境亮度感測器120即感測週遭環境之光源，產生環境亮度資訊S1，處理裝置140就根據環境亮度資訊S1調整顯示裝置110之亮度，調整完後即失能環境亮度感測器120，其中在失能環境亮度感測器120後，處理裝置140更記錄移動感測器130之感測值S2，在手持裝置未移動時進入一省電模式。 According to an embodiment of the invention, when the user presses the power button to turn on the handheld device, the processing device 140 adjusts the brightness of the screen to the lowest brightness that the user can unlock the display device 110. After the user unlocks the display device 110, The ambient brightness sensor 120 senses the light source of the surrounding environment, and generates the ambient brightness information S1. The processing device 140 adjusts the brightness of the display device 110 according to the ambient brightness information S1, and the discolored ambient brightness sensor 120 is adjusted after the adjustment. After disabling the ambient brightness sensor 120, the processing device 140 further records the sensed value S2 of the mobile sensor 130 and enters a power save mode when the handheld device is not moving.
第2圖係顯示根據本發明一實施例所述之行動裝置調節亮度之方法之流程圖200。首先在步驟S210中，先利用一環境亮度感測器感測環境之一亮度，產生一環境亮度資訊；在步驟S220中，利用一移動感測器，產生一 感測值，並相應一移動更新上述感測值；在步驟S230中，根據上述環境亮度資訊調整一顯示裝置之亮度，調整完後即失能上述環境亮度感測器；在步驟S240中，於上述環境亮度感測器失能之狀態中，當更新前後之感測值的變化量大於一預設閥值時，產生一觸發訊息，並每隔一段時間偵測上述感測值，直到更新前後之感測值的變化量小於預設閥值時，重新啟動上述環境亮度感測器。 2 is a flow chart 200 showing a method of adjusting brightness by a mobile device according to an embodiment of the invention. First, in step S210, an ambient brightness sensor is used to sense the brightness of one of the environments to generate an ambient brightness information; in step S220, a motion sensor is used to generate a Sensing the value, and correspondingly moving the updated sensing value; in step S230, adjusting the brightness of a display device according to the ambient brightness information, and disabling the ambient brightness sensor after the adjustment; in step S240, In the state in which the ambient brightness sensor is disabled, when the change amount of the sensed value before and after the update is greater than a preset threshold, a trigger message is generated, and the sensed value is detected at intervals until after the update. When the amount of change in the sensed value is less than the preset threshold, the ambient brightness sensor is restarted.
第3圖係顯示根據本發明另一實施例所述之行動裝置調節亮度之方法之流程圖300，此方法適用於行動裝置剛開機之情況。首先在步驟S310中，當使用者按下電源鍵開機時，即將螢幕亮度調到可供使用者將顯示裝置解鎖之最低亮度；在步驟S320中，將顯示裝置解鎖；在步驟S330中，利用環境亮度感測器感測環境之亮度，產生環境亮度資訊；在步驟S340中，根據上述環境亮度資訊調整一顯示裝置之亮度，調整完後即失能環境亮度感測器；在步驟S350中，失能環境亮度感測器後，記錄目前移動感測器之感測值，在手持裝置未移動時進入一省電模式。 3 is a flow chart 300 showing a method for adjusting brightness of a mobile device according to another embodiment of the present invention, which is suitable for the case where the mobile device is just turned on. First, in step S310, when the user presses the power button to turn on the power, the brightness of the screen is adjusted to the lowest brightness that the user can unlock the display device; in step S320, the display device is unlocked; in step S330, the environment is utilized. The brightness sensor senses the brightness of the environment, and generates ambient brightness information. In step S340, the brightness of a display device is adjusted according to the ambient brightness information, and the environment brightness sensor is disabled after the adjustment; in step S350, the brightness is lost. After the ambient brightness sensor is enabled, the sensed value of the current mobile sensor is recorded, and a power saving mode is entered when the handheld device is not moved.
本發明所提出之行動裝置調節亮度之方法，利用移動感測器之感測值大於閥值所產生的訊號，表示行動裝置開始移動作為觸發，當感測值小於閥值停止變化時來做為環境亮度感測器調整螢幕亮度的調整時機，調整完即失能環境亮度感測器，以減少不必要的螢幕亮度變換，造成使用者在使用行動裝置之不便也節省了環境亮度感測器不必要的耗電。 The method for adjusting the brightness of the mobile device according to the present invention uses the signal generated by the motion sensor to be greater than the threshold value, indicating that the mobile device starts to move as a trigger, and when the sensed value is less than the threshold value, the change is performed as The ambient brightness sensor adjusts the brightness of the screen to adjust the brightness sensor to reduce the unnecessary brightness of the screen, which causes the user to use the mobile device and saves the ambient brightness sensor. The necessary power consumption.
本說明書中所提到的「一實施例」或「實施例」所提到的特定的特徵、結構或性質，可包括在本說明書的至少一實施例中。因此，在不同地方出現的語句「在一個實施例中」，可能不是都指同一個實施例。另外，此特定的特徵、結構或性質，也可以任何適合的方式與一個或一個以上的實施例結合。再者，必須說明的是，以下所附之例圖僅是為了幫助說明，並未依照實際比例繪示。 The specific features, structures, or properties mentioned in the "invention" or "embodiment" referred to in the specification may be included in at least one embodiment of the present specification. Therefore, statements that appear in different places, "in one embodiment," may not all refer to the same embodiment. In addition, this particular feature, structure, or property may be combined with one or more embodiments in any suitable manner. In addition, it should be noted that the following illustrations are only for the purpose of explanation and are not drawn to the actual scale.
本說明書所揭露之實施例，對於任何在本領域熟悉此技藝者，將很快可以理解上述之優點。在閱讀完說明書內容後，任何在本領域熟悉此技藝者，在不脫離本發明之精神和範圍內，可以廣義之方式作適當的更動和替換。因此，本說明書所揭露之實施例，是用以保護本發明之專利要求範圍，並非用以限定本發明之範圍。 The embodiments disclosed herein will readily appreciate the above advantages for anyone skilled in the art. After reading the contents of the specification, any person skilled in the art can make appropriate changes and substitutions in a broad manner without departing from the spirit and scope of the invention. Therefore, the embodiments disclosed in the present specification are intended to protect the scope of the claims of the present invention and are not intended to limit the scope of the invention.
100‧‧‧行動裝置調節亮度系統 100‧‧‧Mobile device adjustment brightness system
110‧‧‧顯示裝置 110‧‧‧ display device
120‧‧‧環境亮度感測器 120‧‧‧Environmental brightness sensor
130‧‧‧移動感測器 130‧‧‧Mobile Sensor
140‧‧‧處理裝置 140‧‧‧Processing device
200、300‧‧‧流程圖 200, 300‧‧‧ flow chart
S1‧‧‧環境亮度資訊 S1‧‧‧Environmental brightness information
S2‧‧‧感測值 S2‧‧‧ sensed value
第1圖係顯示根據本發明一實施例所述之行動裝置調節亮度系統100之架構圖。 1 is a block diagram showing a mobile device adjustment brightness system 100 according to an embodiment of the invention.
第2圖係顯示根據本發明一實施例所述之行動裝置調節亮度之方法之流程圖200。 2 is a flow chart 200 showing a method of adjusting brightness by a mobile device according to an embodiment of the invention.
第3圖係顯示根據本發明另一實施例所述之行動裝置調節亮度之方法之流程圖300。 3 is a flow chart 300 showing a method of adjusting brightness of a mobile device according to another embodiment of the present invention.
100‧‧‧行動裝置調節亮度系統 100‧‧‧Mobile device adjustment brightness system
110‧‧‧顯示裝置 110‧‧‧ display device
120‧‧‧環境亮度感測器 120‧‧‧Environmental brightness sensor
130‧‧‧移動感測器 130‧‧‧Mobile Sensor
140‧‧‧處理裝置 140‧‧‧Processing device
S1‧‧‧環境亮度資訊 S1‧‧‧Environmental brightness information
S2‧‧‧感測值 S2‧‧‧ sensed value
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