Patents Assigned to Elan Microelectronics Corporation
  • Patent number: 11175770
    Abstract: A touch device has multiple charging traces distributed under the touch operation area. When the object hovers over or contacts the touch operation area, the control unit of the touch device obtains the corresponding position of the object through the sensing signal of the electrode units. The control unit in turn connect the charging traces adjacent to the corresponding position of the object to form at least one charging loop. In the process of the touch operation on the touch device, the object can be charged at the same time, and the convenience of use can be improved.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: November 16, 2021
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Han-Wei Chen, Hsuan-Wen Tseng, Yi-Hsin Tao, Chia-Hsing Lin
  • Publication number: 20210320508
    Abstract: An inductive electronic identification device and a power-supply-compensation circuit of the same are provided. The power-supply-compensation circuit has a power supply unit and a compensation circuit, and connects to a load unit for supplying the load unit to operate. The compensation circuit receives the compensation signal from the load unit, so that the voltage regulator of the compensation circuit controls the voltage rise and fall of one end of the capacitor of the compensation circuit. The capacitive element switches to the charging or discharging mode according to the power consumption of the load unit. In this way, electrical charges are stored when the load unit consumes less power, and compensation current is provided when the load unit consumes more power, so as to maintain the normal operation of the load unit.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 14, 2021
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventor: Chao-Chi YANG
  • Publication number: 20210294474
    Abstract: A touchpad and a sending unit for the same are provided. The sensing unit has two electrode layers and a separation assembly. The separation assembly has multiple deformation rooms and multiple gap assemblies. The deformation rooms communicate with the gap assemblies. The gap assemblies communicate with the exterior environment. When the upper electrode layer is pressed and deforms in the deformation rooms, the air in the deformation rooms is discharged through the gap assemblies so that the air does not accumulate in the remaining unstressed spaces to avoid resistance and to maintain the normal operation of the force sensing function.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 23, 2021
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Yung-Lieh CHIEN, Shu-Wei HUANG, Fang-Jin LIN, Tung-Ming YANG, Tien-Wen PAO
  • Patent number: 11068764
    Abstract: A smart card has a light-emitting element, a fingerprint sensor and a microcontroller. An operation of the smart card has a plurality of indication periods to indicate operation statuses of the smart card by the light-emitting element. The control method of the smart card includes generating a light source control signal, controlling a current supplied to the light-emitting element by the microcontroller according to the light source control signal, and decreasing the current supplied to the light-emitting element or stop the current supplied to the light-emitting element during at least one power-saying period in a first indication period of the plurality of indication periods.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 20, 2021
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: I-Hau Yeh, Ta-Huang Liu, Hsiao-Hua Tsai, Ming-Ho Wang
  • Patent number: 11048954
    Abstract: The present invention relates to a fingerprint enrollment method and an electronic device for performing the fingerprint enrollment method. A fingerprint sensor of the electronic device senses the fingerprint to generate the fingerprint images. The processor of the electronic device determines if M qualified fingerprint images are acquired or the number of times the finger touches the fingerprint sensor reaches N. When any of the above conditions is satisfied, the operation of sensing fingerprint is stopped. After that, the processor uses the fingerprint images to generate fingerprint enrollment information to complete the fingerprint enrollment process. Based on the disclosure of the present invention, the user can complete the fingerprint enrollment process regardless of whether the user uses spiral enrollment or pressing enrollment.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: June 29, 2021
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Chun Chien, Li-Wei Lin, Yen-Cheng Lin
  • Patent number: 10969898
    Abstract: A method for determining a force of a touch object on a touch device and for determining its related touch event is provided. The touch object touched on the touch device is clustered into different object groups. Thus, multiple touch objects are simply grouped into two object groups to easily calculate the pressing force that is provided for determining follow-up touch event.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: April 6, 2021
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Hsueh-Wei Yang, Ting-Jan Yang
  • Patent number: 10969912
    Abstract: A capacitive sensing and sampling circuit and method thereof are disclosed. The capacitive sensing and sampling circuit has a voltage source, a sensing unit and a detecting circuit. The detecting unit has a first sensing output unit, a second sensing output unit and a sampling unit. The first and second sensing output units are electrically connected to an output of the sensing unit and the sampling unit. Therefore, by increasing the number of alternatively sensing the capacitive sensing component to obtain more capacitive signals, the number of sampling the sensed capacitive signal is relatively increased. Therefore, the white noise interference for the capacitive sensing and sampling circuit is effectively suppressed, so the signal-to-noise ratio is increased and accuracy of detecting coordinates of the touch object is increased.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 6, 2021
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Kun-Lin Hsieh, Jyun-Yu Chen, Chia-Hsing Lin
  • Publication number: 20210089163
    Abstract: A touch device and an operation method thereof is provided. By determining whether the operating event of the touch device or its touchpad satisfies an exclusion condition, the command triggered when the touchpad is pressed is determined to be ignored or not. Therefore, the corresponding command triggered by pressing the touchpad downward is automatically excluded when it does not want to be triggered. Therefore, the user can naturally disable the function of the corresponding command, which is executed when the pressing module is triggered, during use without using other controls, thereby improving the convenience of use.
    Type: Application
    Filed: July 17, 2020
    Publication date: March 25, 2021
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Hsueh-Wei YANG, Ting-Jan YANG, Sung-Lin Wang
  • Patent number: 10955975
    Abstract: A lighting touchpad includes a circuit board and a light-emitting element. The circuit board has a touch sensing area, and a plurality of first sensor cells and at least one second sensor cell are formed in the touch sensing area. Each of the first sensor cells has the same first areas, and each of the at least one second sensor cell has a second area smaller than the first area. The light-emitting element is disposed in the touch sensing area and adjacent to the at least one second sensor cell. The configuration of the present invention is helpful to reduce a touch dead zone (also be called an inactive area) of the lighting touchpad.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: March 23, 2021
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventor: Hsin-Fu Hsu
  • Publication number: 20210064949
    Abstract: A smart card includes a microprocessor, a biometric sensor, a power supply decision unit, and a power detection unit. When the power source provides electric power to the smart card, the microprocessor of the smart card operates at a lower operating frequency initially. After determining by the power supply detecting unit and the power supply decision unit, it is determined whether a power source provides a higher current or voltage. The microprocessor further determines whether to adjust the operating frequency according to the determination. If so, the operating frequency is further increased to speed up the processing and thereby enhance the user experience.
    Type: Application
    Filed: August 24, 2020
    Publication date: March 4, 2021
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Hsiao-Hua TSAI, Ming-Ho WANG, Ta-Huang LIU
  • Patent number: 10921942
    Abstract: A touch system has a touch device and an input device. The touch system executes a first mode and a second mode at different times. In the first mode, the touch device transmits a modulation signal to drive the touch electrodes and to be used as an uplink signal. The input device receives the modulation signal. In the second mode, the touch device receives the downlink signal from the input device. Thus, the touch device does not have to transmit the driving signal and the uplink signal at different times. Then the time is saved for the rest work periods so that every work periods get longer length of time.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: February 16, 2021
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Han-Wei Chen, Hsuan-Wen Tseng, Yi-Hsin Tao, Chia-Hsing Lin, Chen-Yu Hou, Chieh-Wen Chen
  • Patent number: 10915209
    Abstract: A liquid detecting method and controller for a capacitive touch pad are disclosed. The method includes performing a first mutual capacitance measurement of sensing points of the capacitive touch pad to obtain multiple first sensing values, and then performing a second mutual capacitance measurement of the sensing points to obtain multiple second sensing values, wherein the first and the second mutual capacitance measurements using different frequency of driving signals or different sensing periods for sensing the multiple sensing points. According to the multiple first sensing values and the second sensing values, whether there is liquid on the capacitive touch pad can be determined.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: February 9, 2021
    Assignee: Elan Microelectronics Corporation
    Inventors: Tung-Ming Yang, Hsueh-Wei Yang, Tien-Wen Pao
  • Patent number: 10914807
    Abstract: A point stick module has a sensing device, a rank unit and a signal processing device. The sensing device outputs multiple sensing signals in response to operations done by a user. The rank unit provides a rank signal to represent a rank of the sensing device. The signal processing device is coupled to the sensing device and the rank unit to receive the multiple sensing signals and the rank signal, wherein the signal processing device selects a parameter according to the rank signal.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: February 9, 2021
    Assignee: Elan Microelectronics Corporation
    Inventor: Chun-Chieh Huang
  • Patent number: 10845918
    Abstract: A touch system includes a touch device and an input device. The uplink signal transmitted by the touch device includes a timestamp. The input device transmits a downlink signal through the electrode unit and transmits a side information through a wireless communication unit. The inclusion of the corresponding timestamp in the side information ensures that the side information is combined with the corresponding downlink signal to correctly present the user's operation.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: November 24, 2020
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Han-Wei Chen, Hsuan-Wen Tseng, Yi-Hsin Tao, Chia-Hsing Lin
  • Patent number: 10831309
    Abstract: A touch sensing method for a display with touch device having an image display period, which includes multiple execution time sections. Each execution time section has a display time division and a blank time division. A display procedure is executed in each display time division. A communicating procedure is executed in one of the blank time division. In the communicating procedure, an uplink signal is provided by the common electrodes for a first object to receive. Thus, the display with touch device has more time to detect more different kinds of touch objects.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: November 10, 2020
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Jyun-Yu Chen, Kun-Lin Hsieh
  • Patent number: 10809827
    Abstract: A pointing stick module comprising: a sensing device; a rank unit; a transmission device and a controller. The transmission device is coupled to the sensing device and the rank unit. Also, the controller is coupled to the transmission device and coupled to the rank unit via the transmission device. The controller obtains a rank signal via detecting the rank unit, and determines a rank of the sensing device according to the rank signal.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 20, 2020
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Tien-Wen Pao, Pin-Jung Chung, Nan-Jung Liu
  • Patent number: 10769314
    Abstract: A fingerprint sensing integrated circuit device includes a fingerprint sensing device, an encryption unit, a multiplexer and a transmission interface. The encryption unit is connected to the fingerprint sensing device. The multiplexer has an output end, a first input end and a second input end. The first input end of the multiplexer is connected to the fingerprint sensing device. The second input end of the multiplexer is connected to the encryption unit. The multiplexer connects the output end to the second end according to a selection signal. The transmission interface is connected to the output end of the multiplexer.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 8, 2020
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Chia-Hsing Lin, Yi-Hsin Tao, I-Hau Yeh
  • Patent number: 10691257
    Abstract: A method of changing the identified type of a touching object is provided. The touching object is on a touch pad. The method includes the following steps: (A) when the type of the touching object is determined as a palm, determining the type of the touching object again; (B) when the type of the touching object is determined as a finger in step (A), informing the operating system that the touching object has left the touch pad when the touching object does not leave the touch pad; and (C) after step (B) is done, informing the operating system that the type of the touching object is a finger.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: June 23, 2020
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Tuan-Ying Chang, Hsueh-Wei Yang, Pin-Jung Chung
  • Patent number: 10678354
    Abstract: An electronic system is provided, which includes a mainboard, a pointing stick and a touchpad module, a first transmission path and a second transmission path. The mainboard is disposed with a first connecting unit. The pointing stick is connected to the first connecting unit through a transmission line. The touchpad module includes a circuit board, a second connecting unit and a controller. The circuit board includes a touch sensor. The first transmission path and the second transmission path are connected between the first connecting unit and the second connecting unit. The sensing signal outputted by the pointing stick is transmitted to the controller through the transmission line, the first connecting unit, the first transmission path and the second connecting unit. The output signal of the controller is transmitted to the mainboard through the second connecting unit, the second transmission path and the first connecting unit.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: June 9, 2020
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Yen-Shih Lin, Tien-Wen Pao, Nan-Jung Liu
  • Publication number: 20200142535
    Abstract: An input device for applying to a touch display device is provided. In a sub-signal transmitting section of the input device, the input device transmits a modulation signal corresponding to the state information. Since the length of time of sub-signal transmitting section of the input device is larger or at least equal to one time the length of time of the display section of the touch display device plus twice the length of time of the blank section of the touch display device, the sub-signal transmitting section overlaps at least one of the blank section. The touch display device can receive the modulation signal transmitted from the input device during the overlapping blank sections. Thus, the input device does not need to know the frame of the touch display device so that a receiving unit is reduced to decrease the cost.
    Type: Application
    Filed: October 28, 2019
    Publication date: May 7, 2020
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Jyun-Yu CHEN, Kun-Lin HSIEH