Patents Assigned to Elan Microelectronics Corporation
  • METHOD FOR PREVENTION AGAINST REMISS TOUCH ON A TOUCHPAD
    Publication number: 20130147771
    Abstract: A method for prevention against remiss touch on a touchpad includes dynamically adjusting the scope of an activating area on the touchpad according to a history record of operating the touchpad by the current user, so as to have the protection mechanism against remiss touch automatically adjusted to fit the current user.
    Type: Application
    Filed: November 6, 2012
    Publication date: June 13, 2013
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventor: Elan Microelectronics Corporation
  • Telephone call and alarm control methods for a cell phone
    Patent number: 8452338
    Abstract: Control methods for a cell phone are provided upon occurrence of a particular event, which receive a contact-related information from a touch screen of the cell phone, analyze the contact-related information to identify the contact position, the number of contact objects, or a gesture, to determine a further step to deal with the particular event. The particular event may include receipt of a call, sounding of an alarm of the cell phone, displaying of a short message on the touch screen, receipt of an interrupting call, or a standby mode of the cell phone.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: May 28, 2013
    Assignee: Elan Microelectronics Corporation
    Inventors: I-Hau Yeh, Kun-Ming Tsai, Joe Tsung-Ying Yeh, Theresa I-Hsing Yeh
  • METHOD FOR IDENTIFYING MULTIPLE TOUCH OBJECTS
    Publication number: 20130106732
    Abstract: A method for identifying multiple touch objects has steps of reading at least one touched cluster to be identified in a sensing frame, determining a range of each one of the at least one touched cluster to be identified, comparing the range of each touched cluster to be identified with a first preset division range, if the range of the touched cluster to be identified exceeds the first preset division range, reducing a sensing value of each one of at least one middle sensing point within the first touched cluster to be divided, determining a count of center sensing points of each first touched cluster to be divided, and dividing the first touched cluster to be divided containing multiple center sensing points. Accordingly, the present invention correctly identifies multiple touch objects from a single touched cluster arising from an excessively large line-to-line space.
    Type: Application
    Filed: April 2, 2012
    Publication date: May 2, 2013
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Tsz-Hsuan Chao, Sheng-Tsai Huang
  • TOUCH PAD OPERABLE WITH MULTI-OBJECTS AND METHOD OF OPERATING SAME
    Publication number: 20130106745
    Abstract: The present invention provides a touch pad operable with multi-objects and a method of operating such a touch pad. The touch pad includes a touch structure for sensing touch points of a first and a second object and a controller for generating corresponding touching signals and related position coordinates. Moreover, the controller calculates at least two movement amount indexes according to coordinate differences between these position coordinates, thereby generating a movement amount control signal to control behaviors of a software object.
    Type: Application
    Filed: September 13, 2012
    Publication date: May 2, 2013
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Wei-Wen YANG, Chuh-Min LIU, Jian-Wei Chen
  • METHOD FOR IDENTIFYING TOUCH OBJECT
    Publication number: 20130076700
    Abstract: A method for identifying touch object has steps of presetting a range of slopes for noise signals, identifying multiple sensed signals, each having a slope higher than the range of slopes for noise signals in a sensing frame, and if the slope of each sensed signal is higher than an upper bound of the range of slopes for noise signals and is higher than each of those of the adjacent sensed signals, determining that the sensed signal is sensed from a corresponding sensed point touched by a stylus. Accordingly, the method can correctly identify a range touched by a stylus from the sensed signals combined with LCM noise signals.
    Type: Application
    Filed: March 27, 2012
    Publication date: March 28, 2013
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventor: Ching-Ting CHIU
  • Navigation system and control method thereof
    Patent number: 8401792
    Abstract: A navigation system includes a touch screen for receiving a touch input and displaying a navigation map, mode-switching means for issuing a mode-switching command to switch the navigation system into an input mode, a memory for storing a database, and a controller to recognize a handwriting input or a gesture input to acquire an input information, search the database for a facility information corresponding to the input information, and show facilities represented by the facility information in the navigation map.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: March 19, 2013
    Assignee: Elan Microelectronics Corporation
    Inventors: Joe Tsung-Ying Yeh, Theresa I-Hsing Yeh, Kun-Ming Tsai
  • Method for scroll bar control on a touchpad
    Patent number: 8378973
    Abstract: In a method for scroll bar control on a touchpad, the fingers touching on the touchpad are detected to start up and terminate a scroll bar control function. In the scroll bar control function, the movement of the finger or fingers touching on the touchpad is detected for scrolling on a window, and the vertical distance and the horizontal distance of the movement are evaluated for determining the scrolling amount of a vertical scroll bar or a horizontal scroll bar of the window.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: February 19, 2013
    Assignees: Elan Microelectronics Corporation, Elan Tech Devices Corporation
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien, Zhi-Long Wu
  • Method for scroll bar control on a touchpad
    Patent number: 8378976
    Abstract: In a method for scroll bar control on a touchpad, the fingers touching on the touchpad are detected to start up and terminate a scroll bar control function. In the scroll bar control function, the movement of the finger or fingers touching on the touchpad is detected for scrolling on a window, and the vertical distance and the horizontal distance of the movement are evaluated for determining the scrolling amount of a vertical scroll bar or a horizontal scroll bar of the window.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: February 19, 2013
    Assignees: Elan Microelectronics Corporation, Elan Tech Devices Corporation
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien, Zhi-Long Wu
  • Sensing method and circuit for a capacitive touch panel
    Patent number: 8378987
    Abstract: A sensing method for a capacitive touch panel includes charging a measure capacitor, setting the voltage across a mutual capacitor at the intersection of two traces of the capacitive touch panel, and then injecting partial charges of the measure capacitor into the mutual capacitor. When the intersection is touched, the capacitance value of the mutual capacitor is changed, and consequently the amount of charges injected into the mutual capacitor is changed. Hence, the voltage of the measure capacitor could be detected to determine whether or not the intersection is touched.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: February 19, 2013
    Assignee: Elan Microelectronics Corporation
    Inventors: Chun-Chung Huang, I-Shu Lee, Hsiu-Ju Yang, Ching-Chung Wang, Kun-Ming Tsai, Yu-Hui Lin
  • Capacitive touch system and sensing method for a capacitive touch system
    Patent number: 8368660
    Abstract: A capacitive touch system includes a touch panel and two touch integrated circuits connected to the touch panel to scan thereto. The touch panel has a boundary trace connected to both of the two touch integrated circuits. When one of the two touch integrated circuits charges/discharges the boundary trace, the other touch integrated circuit does not charges/discharges the boundary trace.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: February 5, 2013
    Assignee: Elan Microelectronics Corporation
    Inventors: Tse-Lun Hung, Jung-Shou Huang, Hsin-Shieh Tsai
  • Sensing method for a capacitive touch system
    Patent number: 8350824
    Abstract: A capacitive touch system uses at least two touch integrated circuits to simultaneously scan a touch panel, each of the touch integrated circuits only for scanning a portion of the traces of the touch panel. Therefore, the capacitive touch system can maintain a good frame rate, even the touch panel is a large scale touch panel. Sensing methods are provided to determine a sensed value for a boundary trace which is the last one of the traces connected to a first touch integrated circuit and prior to the first one of the traces connected to a second touch integrated circuit.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: January 8, 2013
    Assignee: Elan Microelectronics Corporation
    Inventors: Tse-Lun Hung, Jung-Shou Huang, Hsin-Shieh Tsai
  • SENSING METHOD FOR A CAPACITIVE TOUCH SYSTEM
    Publication number: 20120299873
    Abstract: A capacitive touch system uses at least two touch integrated circuits to simultaneously scan a touch panel, each of the touch integrated circuits only for scanning a portion of the traces of the touch panel. Therefore, the capacitive touch system can maintain a good frame rate, even the touch panel is a large scale touch panel. Sensing methods are provided to determine a sensed value for a boundary trace which is the last one of the traces connected to a first touch integrated circuit and prior to the first one of the traces connected to a second touch integrated circuit.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 29, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: TSE-LUN HUNG, Jung-Shou Huang, Hsin-Shieh Tsai
  • METHOD OF IDENTIFYING PALM AREA FOR TOUCH PANEL AND METHOD FOR UPDATING THE IDENTIFIED PALM AREA
    Publication number: 20120293454
    Abstract: A method of identifying a palm area for a touch panel has steps of: receiving sensing frame information having multiple touching sensing points from the touch panel; selecting one of the touching sensing points; outwardly extending a distance from an outline of the selected touching sensing point to define a searching range; checking whether other touching sensing points are within the searching range; marking the touching sensing points in the searching range and expanding the searching range based on the currently marked touching sensing points; sequentially selecting and checking each touching sensing point if it is within the present searching range; and finally merging all the outlines of the marked touching sensing points to form a final outline as a palm area. Other unmarked touching sensing points are defined as touching reference points.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 22, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: YU-JEN TSAI, HSUEH-WEI YANG
  • CIRCUIT AND METHOD FOR SENSING A DIFFERENTIAL CAPACITANCE
    Publication number: 20120280700
    Abstract: A circuit for sensing a differential capacitance includes a charge-storing circuit to generate a first output voltage and a second output voltage related to capacitances at two terminals of the differential capacitance, respectively, an operational amplifier to amplify the difference between the first and second output voltages to generate a sensing value, a first sampling capacitor having one terminal connected to the negative input terminal and the other terminal receiving the first or second output voltage, and a second sampling capacitor having one terminal connected to the negative input terminal and the other terminal switched to the output terminal of the operational amplifier. The second sampling capacitor stores a non-ideal error value to offset the non-ideal effect of the operational amplifier imparted on the sensing value.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 8, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Chao-Chi YANG, Shih-How PENG
  • TOUCH-CONTROLLED DEVICE, IDENTIFYING METHOD AND COMPUTER PROGRAM PRODUCT THEREOF
    Publication number: 20120262415
    Abstract: A touch-controlled device, an identifying method and a computer program product thereof are provided. The touch-controlled device comprises a touch panel and a processor. The processor is electrically connected to the touch panel, and is configured to detect a first touched region and a second touched region of the touch panel. The processor is further configured to identify one of the first touched region and the second touched region as being touched by a major input object and the other one as being touched by a non-major input object according to a ratio of a moving velocity to a touch area of each of the first and second touched regions.
    Type: Application
    Filed: April 2, 2012
    Publication date: October 18, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Wei-Kuo MAI, Tung-Ming YANG
  • PEN FOR CAPACITIVE TOUCH INPUT
    Publication number: 20120262429
    Abstract: A pen for capacitive touch input includes a replaceable head and a conductive handle. The conductive handle is a tube having a tunnel or a rod having a stocking hole for receiving the replaceable head and exposing the conductive tip of the replaceable head to touch a capacitive touch control device. The pen is adaptive to different capacitive touch control devices for precision and sensitivity on position detection by using different replaceable heads.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Applicant: Elan Microelectronics Corporation
    Inventors: Ta-Fan Hsu, Shu-Wei Huang
  • CAPACITANCE SENSOR STRUCTURE
    Publication number: 20120256647
    Abstract: A capacitance sensor structure includes a first sensor in a first direction and a second sensor in a second direction for sensing a variation in the mutual capacitance between the first sensor and the second sensor by applying an excitation signal to the first sensor and detecting a response signal from the second sensor. The sensing area of the second sensor is intentionally reduced to be much smaller than the sensing area of the first sensor for noise performance improvement of the mutual capacitance sensing.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Yi-Hsin TAO, Chia-Hsing LIN, Che-Hao HSU, Wen-Jun HSU
  • ELIMINATION OF ENVIRONMENTAL INTERFERENCE TO A CAPACITIVE TOUCH PAD BY A DUMMY TRACE
    Publication number: 20120256875
    Abstract: A capacitive touch pad includes a sensor layer for sensing a touch of an object and a dummy trace below the sensor layer. The dummy trace is sensed to obtain a sensed value while the dummy trace is shielded by the sensor layer from interference of the object such that the sensed value reflects only environmental variation. Therefore, environmental variation can be identified depending on the sensed value, and the sensor layer can be calibrated properly.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 11, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Han-Chang HO, Cheng-Hui LIN, Kuo-Ming HUANG, Kuo-Tai WANG
  • CAPACITIVE TOUCHPAD
    Publication number: 20120256876
    Abstract: A capacitive touchpad has insulating blocks provided above and below a resilient layer. The insulating blocks above the resilient layer are offset in position with respect to the insulating blocks below the resilient layer. Due to the insulating blocks, a plurality of gaps are formed in the capacitive touchpad. The gaps are filled with a fluid medium. When a conductive or non-conductive object touches the capacitive touchpad, the resilient layer is deformed at the touched position and thereby displaces the fluid medium completely from the affected gaps. As a result, the distance and the dielectric coefficient between the resilient layer or an electrode plate and a sensor layer are changed, causing variation in capacitance.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: I-HAU YEH, TA-FAN HSU, SHU-WEI HUANG
  • TWO-DIMENSIONAL CAPACITIVE TOUCH PANEL WITH SINGLE SENSOR LAYER
    Publication number: 20120256877
    Abstract: A two-dimensional capacitive touch panel includes three electrodes made from a single sensor layer, with the first one of the electrodes between the other two of the electrodes to establish mutual capacitances between the first electrode and the other two, respectively. The mutual capacitance between the first and second electrodes increases along a direction, and the mutual capacitance between the first and third electrodes decreases along a direction. The first electrode is applied with an excitation signal for sensing variations in the mutual capacitances to calculate a position in the direction that is touched by an external conductor.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Chia-Hsing LIN, Wen-Jun HSU, Yi-Hsin TAO