WO2007124614A1 - Procédé de commande de la vitesse d'un curseur dans une interface utilisateur - Google Patents

Procédé de commande de la vitesse d'un curseur dans une interface utilisateur Download PDF

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Publication number
WO2007124614A1
WO2007124614A1 PCT/CN2006/000817 CN2006000817W WO2007124614A1 WO 2007124614 A1 WO2007124614 A1 WO 2007124614A1 CN 2006000817 W CN2006000817 W CN 2006000817W WO 2007124614 A1 WO2007124614 A1 WO 2007124614A1
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WO
WIPO (PCT)
Prior art keywords
motion vector
cursor
scalar
speed
generating
Prior art date
Application number
PCT/CN2006/000817
Other languages
English (en)
Inventor
Jian Liu
Zhaohui Ou
Original Assignee
Apexone Microelectronics Ltd.
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 Apexone Microelectronics Ltd. filed Critical Apexone Microelectronics Ltd.
Priority to CN2006800006834A priority Critical patent/CN101313273B/zh
Priority to PCT/CN2006/000817 priority patent/WO2007124614A1/fr
Publication of WO2007124614A1 publication Critical patent/WO2007124614A1/fr

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Classifications

    • 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]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/04812—Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
    • 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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry

Definitions

  • This invention relates, in general, to graphical user interface and, more particularly, to controlling the movement of a cursor on a display screen.
  • Graphical user interfaces having cursors on display screens are becoming widely used in such applications as personal computers, work stations, video game play stations.
  • a computer mouse is coupled to a computer operating system, either wired or wireless.
  • the operating system will cause the cursor moving correspondingly on the display.
  • the user may employ the mouse to move and reposition the cursor between objects, such as icons, windows, toolbars, 3-D elements, etc.
  • One approach for providing cursor speed variation and reducing overshooting uses a pressure sensitive mouse.
  • the pressure sensitive mouse generates signals to the host computer that is proportional to the pressure exerted on the mouse by the user and to the speed of movement of the mouse.
  • the user can control the mouse speed by the pressure exerted on the mouse.
  • Another approach includes a device interposed between a mouse and the host computer that varies the signal pulse counts provided to the host computer system as set by a push-button switch on the device. Both of these approaches require devices at high cost, compared with a conventional mouse. Furthermore, they require the user to operate the mouse in a special way to accomplish the speed variations, which are often inconvenient, counterintuitive, and even counterproductive for efficient interface with the host computer.
  • the designated target areas include those areas near icons, toolbars, buttons, etc.
  • the cursor When the cursor is outside the designated target areas, it moves at a high speed setting. When the cursor moves into a designated target area, its speed changes to a low speed setting to reduce the likelihood of overshooting the target.
  • the cursor speed does not decrease as the cursor moves closer to the target and may overshoot the target.
  • the cursor speed will decrease to the low speed setting as the cursor moves across the area. Both of these two situations produce less than desirable user experience.
  • Figure 1 is a functional block diagram illustrating a user interface system in accordance with an embodiment of the present invention.
  • Figure 2 is a flow chart illustrating cursor speed control process in accordance with an embodiment of the present invention.
  • FIG. 1 is a functional block diagram illustrating a user interface system 10 in accordance with an embodiment of the present invention.
  • interface system 10 may be part of a computer pointer control device, commonly referred to as a mouse, for controlling a cursor on the display of a personal computer, a workstation.
  • Interface system 10 may also function in an interactive television remote control, a video game joystick, etc.
  • interface system 10 includes a motion data collection element 12.
  • Motion data collection element 12 may include an optical motion sensing system in a optical mouse, a mechanical motion sensing system comprised of a rolling ball, two tracking wheel, and a signal processing circuit in a mechanical mouse, or a combination of the mechanical and optical sensing mechanisms with signal processing circuitry.
  • Motion data collection element 12 converts the mouse or joystick motion to electrical signals.
  • the electric signals includes such information about the direction and speed of the mouse motion.
  • motion data collection element 12 generates signals at its output at a constant rate determined by a clock signal therein and includes such information as the displacement of the mouse motion during a fixed time interval.
  • cursor control element 18 The output of motion data collection element 12 is transmitted to a cursor control element 18 via a cursor speed control module 16.
  • cursor control element 18 generates cursor drive signals to control the cursor on the computer display in response to the signals from cursor speed control module 16.
  • cursor speed control module 16 processes the output signal from motion data collection element 12 and generates signals for varying the cursor speed to achieve efficient motion of the cursor on the display and significantly reduces or substantially eliminates cursor overshoot.
  • interface system 10 e.g., motion data collection element 12, cursor speed control module 16, and cursor control element 18, can be fabricated on a single integrated circuit chip or on several chips.
  • interface system 10 is packaged in a mouse, joystick, or other types of interface tools.
  • cursor speed control module 16 and/or cursor control element 18 can be located outside the interface tool and in the host computer.
  • Fig 1 only illustrates the functional characters of different elements in interface system 10. These functions can be achieved either through hardware circuit arrangement, software programming, or a combination thereof.
  • Figure 2 is a flow chart illustrating an cursor speed control process 100 in accordance with an embodiment of the present invention.
  • cursor speed control process 100 operates in motion speed control module 16 of interface system 10 shown in Fig. 1 to control cursor speed and avoid cursor overshoot.
  • Cursor speed control process 100 may serve in other systems where speed control is desirable.
  • cursor speed control process 100 operates in cycles at a rate equal to that at which motion data collection element 12 generates output signals. In each cycle, cursor speed control process 100 generates an output signal to cursor control element 18 for controlling the cursor movement on the display.
  • cursor speed control module 16 receives an output signal from motion data collection element 12.
  • the output signal of motion data collection element 12 includes data describing a motion vector representing the displacement of the mouse during the data collection cycle that generates the output signal.
  • a data collection cycle may be the same as a motion measurement period in data collection element 12. At the end of each measurement period, motion data collection element 12 generates a signal describing the motion vector during that period. However, a data collection cycle may also include more than one motion measurement periods. Each motion measurement period generates a motion vector. At the end of a data collection cycle, motion data collection element 12 generates a signal describing a sum of the motion vectors generated during all motion measurement periods in that data collection cycle.
  • the motion vector includes two mutually orthogonal components, generally referred to as X component and Y component. They describe the mutually perpendicular X and Y components of the mouse displacement during the data collection cycle.
  • the motion vector is described by a scalar L representing the magnitude and an angle ⁇ representing the direction of the mouse displacement during the motion data collection cycle.
  • the motion vector includes data about both the magnitude and the direction of the mouse displacement.
  • cursor speed control process 100 is described herein below with the motion vector described by the X and Y components.
  • cursor speed control module 16 calculates the speed of the mouse motion as
  • T represents a time interval of the motion data collection cycle.
  • the time interval T is a predetermined constant. Therefore, equation (1) can be simplified as
  • V Jx 2 + Y 2 . (2)
  • equation (2) is rephrased to
  • V 2 X 2 + Y 2 . (3)
  • Equation (3) does not involve the mathematical operation of square root and, therefore, is computation power efficient compare with equation (2).
  • equation (2) is approximately rephrased as
  • Equation (4) only involves linear mathematical operation and more computation power efficient than equations (2) and (3).
  • cursor speed control module 16 calculates a deceleration of the mouse motion as
  • V 0 or V 0 represents the mouse speed calculated in step 104 of the current cycle
  • V x or F 1 represents the mouse speed calculated in step 104 during a previous cycle and stored in a memory unit in cursor speed control module 16.
  • the quantities AV and AV 2 are scalars describing the change of on the speed of the mouse motion between the current cycle and the previous cycle. Even though they have different units from the physical meaning of acceleration or deceleration, for the purpose of simplicity, they are both referred to as deceleration herein below
  • the deceleration AV or AV 2 indicates the change of speed in the mouse motion between the current cycle and the previous cycle.
  • a zero AV or AV 2 indicates that the mouse is moving at the same speed in the current cycle as in the previous cycle.
  • a negative AV or AV 2 indicates that the mouse speed is increasing, i.e., the mouse motion has a positive acceleration.
  • a positive AV or AV 2 indicates that the mouse speed is decreasing, i.e., the mouse motion has a negative acceleration.
  • cursor speed control module 16 After calculating the deceleration AV or AV 2 , cursor speed control module 16 proceeds to a subsequent step 114 of updating the memory for storing the previous cycle speed by replacing it with the current cycle speed V 0 or V 0 . The updated previous cycle speed will be used for deceleration calculation in step 112 in the next cycle of cursor speed control process 100.
  • cursor speed control module 16 verifies whether the mouse motion has a deceleration greater than a predetermined threshold value as indicated in equation (5) or equation (6):
  • C 1 and C 2 are positive constants.
  • a large value of C 1 or C 2 indicates a high threshold for triggering the cursor speed reduction mechanism described herein below. Selection proper values for the threshold will substantially eliminate cursor overshooting without unnecessarily slowing down the cursor movement and thereby enhance the operation efficiency and improving user experience with the computer system.
  • the value for C 1 or C 2 is in a range between one pixel and twenty pixels. In accordance with another preferred embodiment, the value for C 1 or C 2 is in a range between five and twenty pixels. In accordance with yet another preferred embodiment, the value for C 1 or C 2 is in a range between ten and twenty pixels.
  • step 112 uses the simplified equation (4) for calculating the approximate speed as the sum of the absolute values of the X and Y components of the motion vector. The approximate speed introduces an error of
  • the threshold old value C 1 in equation (5) or (6) is preferably greater than the largest error W in a specific application, thereby eliminating false triggering of mouse speed reduction as described herein below.
  • cursor speed control process 100 proceeds to a step 116 for generating an output signal describing the motion vector X 0 and Y 0 transmitted from motion data collection element 12 to cursor speed control module 16 in step 102 of the current cycle.
  • step 118 process 100 generates an output signal describing a modified motion vector.
  • the modified motion vector is a scale down motion vector and equal to by the current cycle motion vector multiplied by a scale factor or speed reduction factor between zero and one:
  • the scaling factors k x and k y can be equal to each other for an isotropic scale down or speed reduction of the cursor motion speed. They can also be different from each other to generate different scale down or speed reduction in the X and Y components.
  • Such anisotropic scale down may be beneficial in certain computer display with anisotropic features, e.g., very high or very low aspect ratios.
  • Anisotropic speed reduction may also be beneficial in a computer system with a display having distortion.
  • process 100 proceeds to a step 122 to transmit the output signal to cursor control element 18.
  • cursor control element 18 In response to the motion vector signal, cursor control element 18 generates a cursor drive signal to move the cursor on the display.
  • cursor speed control process 100 returns to step 102, in which cursor speed control module 16 receives a new motion vector from motion data collection element 12 for the next cycle.
  • motion data collection element 12 may generate motion vectors in terms of magnitude L and directional angle ⁇ .
  • step 112 of calculating the cursor deceleration is by the equation:
  • step 118 of cursor speed reduction is achieved by scaling down the magnitude of the motion vector as:
  • the angle ⁇ does not change in the cursor speed reduction step 118.
  • this is not intended as a limitation on the scope of the present invention.
  • the direction angle ⁇ of the motion vector may change to achieve certain anisotropic features.
  • cursor speed control process 100 checks the mouse speed variation. If process 100 detects a reduction in the speed of the mouse movement greater than a threshold value, it interprets that the cursor is approaching a target and the user intends to stop the cursor at the target. In response thereto, process 100 scales down the motion vector, thereby slowing down the cursor motion and avoiding the cursor overshooting the target. With proper selection of the threshold value and the scaling factors, cursor speed control process 100 can substantially eliminate cursor overshoot without generating unexpected cursor speed change when the user moves the cursor across a display screen. In accordance with various embodiments of the present invention, cursor speed control process 100 does not require specific user inputs or counterintuitive user actions to change the cursor speed. Furthermore, implementing cursor speed control process 100 involves simple computations and therefore is reliable and cost efficient.
  • step 118 of process 100 may generate an output signal describing a modified motion vector having a predetermined magnitude that is smaller than that of the motion vector calculated in step 104 shown in Fig. 2.
  • the predetermined magnitude of the modified motion vector may be zero, which corresponds to reducing the cursor speed to zero.
  • a cursor speed control process is not limited to calculating the deceleration and verifying whether the deceleration is above a threshold to trigger the speed reduction as described herein above with reference to Fig. 2.
  • the cursor speed control process may calculate the acceleration of the mouse motion vector and compare the acceleration with a negative threshold value.
  • the cursor speed control process calculates a difference of speeds between the current and previous cycles and triggers the speed reduction in response to the difference in a predetermined range in accordance with the present invention. If the difference is outside the predetermined range, the cursor speed control process transmits the motion vector to the cursor control element.
  • Figure 2 describes cursor speed control process 100 as calculating the change of mouse motion speed of the current cycle with respect to a cycle immediately preceding the current cycle.
  • a cursor speed control process calculates the changes of mouse motion speed, i.e., decelerations or accelerations, over a plurality of consecutive cycles, e.g., two, three, or four cycles, etc.
  • the process scales down the cursor speed and avoids overshooting.
  • such criteria may include, but are not limited to, positive decelerations over at least two or three consecutive cycles, at least two consecutive decelerations over a threshold value, etc.
  • cursor speed control process is not limited to the applications of mouse or computer pointing devices.
  • a cursor speed control process in accordance with the present invention is applicable in many other fields with the need of motion sensing and graphic user interface, e.g., television remote control, robots, etc.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

Cette invention concerne un procédé de commande de la vitesse d'un curseur dans une interface utilisateur permettant d'éviter un débordement du curseur sur l'écran. Le procédé décrit dans cette invention consiste à calculer les vitesses du déplacement de la souris à partir de vecteurs de mouvement de la souris. Le procédé consiste ensuite à comparer les vitesses de déplacement de la souris sur deux cycles consécutifs puis à déterminer si la souris est ralentie. En réaction à un ralentissement, le procédé de commande de vitesse du curseur consiste à produire un signal afin de ralentir le déplacement du curseur sur l'écran, ce qui permet d'éviter le débordement du curseur sans que l'utilisateur de la souris ne doivent saisir une entrée spéciale. Dans un mode de réalisation, la vitesse de déplacement de la souris est calculée en tant que somme des valeurs absolues de deux composants mutuellement perpendiculaires du vecteur de déplacement afin d'économiser de la puissance de calcul et d'augmenter l'efficacité du procédé de commande de vitesse du curseur.
PCT/CN2006/000817 2006-04-27 2006-04-27 Procédé de commande de la vitesse d'un curseur dans une interface utilisateur WO2007124614A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2006800006834A CN101313273B (zh) 2006-04-27 2006-04-27 控制用户界面上光标速度的方法
PCT/CN2006/000817 WO2007124614A1 (fr) 2006-04-27 2006-04-27 Procédé de commande de la vitesse d'un curseur dans une interface utilisateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/000817 WO2007124614A1 (fr) 2006-04-27 2006-04-27 Procédé de commande de la vitesse d'un curseur dans une interface utilisateur

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Cited By (5)

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US8316319B1 (en) 2011-05-16 2012-11-20 Google Inc. Efficient selection of characters and commands based on movement-inputs at a user-inerface
TWI464668B (zh) * 2012-05-21 2014-12-11 Lite On Electronics Guangzhou 輸入裝置及其控制捲動速度的方法
US20170351344A1 (en) * 2016-06-07 2017-12-07 International Business Machines Corporation Dynamic device sensitivity control
EP2465023B1 (fr) * 2009-08-10 2018-12-05 Koninklijke Philips N.V. Système et procédé pour déplacer un curseur sur un écran
WO2021001385A1 (fr) * 2019-07-02 2021-01-07 Koninklijke Philips N.V. Procédé d'adaptation de la sensibilité d'un dispositif de pointage, programme informatique et dispositif d'évaluation d'image

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CN103164126B (zh) * 2013-02-25 2016-03-30 联宝(合肥)电子科技有限公司 一种在主界面和扩展界面中避免鼠标误操作的方法
CN103533411B (zh) * 2013-09-04 2017-10-10 小米科技有限责任公司 一种控制选择光标移动的方法和装置
CN103699236B (zh) * 2013-12-27 2017-01-18 无锡英斯特微电子有限公司 低功耗光电导航系统的帧率控制方法
US9367148B2 (en) * 2014-04-22 2016-06-14 Pixart Imaging (Penang) Sdn. Bhd. Selective frame rate switching
CN107820600B (zh) * 2016-10-09 2021-04-27 深圳市柔宇科技股份有限公司 图形指针移动方法、图形指针移动系统及触控显示装置
JP6560801B1 (ja) * 2018-09-26 2019-08-14 株式会社Ｃｙｇａｍｅｓ プログラム、電子装置、及び方法

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2465023B1 (fr) * 2009-08-10 2018-12-05 Koninklijke Philips N.V. Système et procédé pour déplacer un curseur sur un écran
US8316319B1 (en) 2011-05-16 2012-11-20 Google Inc. Efficient selection of characters and commands based on movement-inputs at a user-inerface
TWI464668B (zh) * 2012-05-21 2014-12-11 Lite On Electronics Guangzhou 輸入裝置及其控制捲動速度的方法
US20170351344A1 (en) * 2016-06-07 2017-12-07 International Business Machines Corporation Dynamic device sensitivity control
US9971425B2 (en) 2016-06-07 2018-05-15 International Business Machines Corporation Dynamic device sensitivity control
WO2021001385A1 (fr) * 2019-07-02 2021-01-07 Koninklijke Philips N.V. Procédé d'adaptation de la sensibilité d'un dispositif de pointage, programme informatique et dispositif d'évaluation d'image
JP2022538056A (ja) * 2019-07-02 2022-08-31 コーニンクレッカ フィリップス エヌ ヴェ ポインティングデバイスの感度適応方法、コンピュータプログラム及び画像評価装置
US11755129B2 (en) 2019-07-02 2023-09-12 Koninklijke Philips N.V. Method for adapting sensitivity of a pointing device, computer program and image evaluation device
JP7371136B2 (ja) 2019-07-02 2023-10-30 コーニンクレッカ フィリップス エヌ ヴェ ポインティングデバイスの感度適応方法、コンピュータプログラム及び画像評価装置

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CN101313273B (zh) 2013-04-10

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