Patents by Inventor Yi-Hsin Tao
Yi-Hsin Tao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11175770Abstract: 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: GrantFiled: October 14, 2019Date of Patent: November 16, 2021Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Han-Wei Chen, Hsuan-Wen Tseng, Yi-Hsin Tao, Chia-Hsing Lin
-
Patent number: 10921942Abstract: 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: GrantFiled: October 17, 2019Date of Patent: February 16, 2021Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Han-Wei Chen, Hsuan-Wen Tseng, Yi-Hsin Tao, Chia-Hsing Lin, Chen-Yu Hou, Chieh-Wen Chen
-
Patent number: 10845918Abstract: 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: GrantFiled: September 5, 2019Date of Patent: November 24, 2020Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Han-Wei Chen, Hsuan-Wen Tseng, Yi-Hsin Tao, Chia-Hsing Lin
-
Patent number: 10769314Abstract: 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: GrantFiled: February 7, 2018Date of Patent: September 8, 2020Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Chia-Hsing Lin, Yi-Hsin Tao, I-Hau Yeh
-
Publication number: 20200133436Abstract: 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: ApplicationFiled: October 17, 2019Publication date: April 30, 2020Applicant: ELAN MICROELECTRONICS CORPORATIONInventors: HAN-WEI CHEN, HSUAN-WEN TSENG, YI-HSIN TAO, CHIA-HSING LIN, CHEN-YU HOU, CHIEH-WEN CHEN
-
Publication number: 20200133428Abstract: 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: ApplicationFiled: October 14, 2019Publication date: April 30, 2020Applicant: ELAN MICROELECTRONICS CORPORATIONInventors: HAN-WEI CHEN, HSUAN-WEN TSENG, YI-HSIN TAO, CHIA-HSING LIN
-
Publication number: 20200133457Abstract: 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: ApplicationFiled: September 5, 2019Publication date: April 30, 2020Applicant: ELAN MICROELECTRONICS CORPORATIONInventors: Han-Wei Chen, Hsuan-Wen Tseng, Yi-Hsin Tao, Chia-Hsing Lin
-
Publication number: 20190026534Abstract: 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: ApplicationFiled: February 7, 2018Publication date: January 24, 2019Inventors: Chia-Hsing Lin, Yi-Hsin Tao, I-Hau Yeh
-
Patent number: 9112506Abstract: A touch panel has multiple first-axis sensing lines and multiple second-axis sub-sensing sets. Each first-axis sensing line has a second-axis sensing set formed therein with multiple second-axis sensing part of the second-axis sensing set spaced apart along the first axis. The second-axis sub-sensing parts at each identical coordinate of the second axis are connected to constitute a second-axis sensing line, and the first-axis sensing lines and the second-axis sensing lines are mutually crossed. As the second-axis sub-sensing parts constituting each second-axis sensing line are separately enclosed in different first-axis sensing lines, the capacitance values of capacitive coupling between the first-axis sensing lines and the second-axis sensing lines are relatively higher and more stable.Type: GrantFiled: November 21, 2012Date of Patent: August 18, 2015Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Yi-Hsin Tao, Wen-Jun Hsu
-
Patent number: 9104279Abstract: A scan method for increasing frame rate of a touch panel having multiple driving lines, multiple sensing lines and a scan cycle with multiple detection cycles, has steps of generating multiple sets of asynchronous excitation signals within each detection cycle with each set of excitation signals outputted to a corresponding driving line, and receiving capacitance sensing values from the sensing lines corresponding to the driving lines. In contrast to conventional scan methods only outputting one set of excitation signals within each detection cycle, the time required to scan entire driving lines is greatly reduced and the frame rate is increased. Additionally, as the multiple sets of asynchronous excitation signals are asynchronous, the interference to the capacitance sensing values sensed by the sensing circuit in response to the multiple sets of excitation signals won't occur.Type: GrantFiled: January 21, 2013Date of Patent: August 11, 2015Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Chia-Hsing Lin, Yi-Hsin Tao
-
Patent number: 9069419Abstract: Methods are proposed for object positioning for an X-Y projected capacitive touch panel. In an embodiment, capacitance sensing under inphase excitation of traces is applied to set a base value when the capacitive touch panel is not touched and to obtain capacitances at intersections when the capacitive touch panel is touched, and the base value is compared with the measured capacitances to identify touch points. In other embodiments, X-Y projected sensing and all-point sensing are combined to reduce the amount of calculation and achieve the same positioning effect as an all-point capacitive touch panel.Type: GrantFiled: August 26, 2010Date of Patent: June 30, 2015Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Chia-Hsing Lin, Yi-Hsin Tao, Hung Nien, Brian Sung, Hsin-Shieh Tsai, Hsuan-Wen Tseng
-
Patent number: 8985470Abstract: A code pattern having cross-shaped positioning patterns is disclosed, comprising: a plurality of marks, which at least include a central positioning mark, a first positioning mark, a second positioning mark, a third positioning mark, and a fourth positioning mark; the central and the first to fourth positioning marks are distributed in a region along with other marks. The first to fourth positioning marks are four neighboring marks that are closest to the central positioning mark in distance. In addition, The central and the first to fourth positioning marks are disposed in the shape of a cross within the region, and corresponding to a coordinate obtained by adding together four coordinates from the first to fourth positioning marks then dividing a resulted sum thereof by four, is equivalent to a coordinate corresponding to the central positioning mark.Type: GrantFiled: November 11, 2008Date of Patent: March 24, 2015Assignee: Elan Microelectronics Corp.Inventors: Chen-Hua Ao, Yi-Hsin Tao
-
Patent number: 8970523Abstract: 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: GrantFiled: April 6, 2012Date of Patent: March 3, 2015Assignee: Elan Microelectronics CorporationInventors: Chia-Hsing Lin, Wen-Jun Hsu, Yi-Hsin Tao
-
Patent number: 8952922Abstract: Two sensing units are configured as an exciter and a sensor connected to two trace lines, respectively, for mutual capacitance sensing from the capacitance units including these two trace lines. The two sensing units connect the two trace lines together to balance them to a same voltage level first, and then disconnect them from each other. Thereafter, the exciter connects the first trace line to an excitation node to induce a charge change on the second trace line, and the sensor senses the charge change to detect the variation of the mutual capacitance between the two trace lines.Type: GrantFiled: April 27, 2011Date of Patent: February 10, 2015Assignee: Elan Microelectronics CorporationInventors: Chia-Hsing Lin, Yi-Hsin Tao, Wen-Jun Hsu, I-Shu Lee, Shih-Yuan Hsu
-
Patent number: 8866794Abstract: For a capacitive touch device having a capacitive touch sensor to be sensed to generate sensed values, a sensing apparatus and method statistically analyze the sensed values generated in a certain time period to evaluate the sensing quality thereof, discard the poor reliable sensed values, and re-sense the capacitive touch sensor to generate new sensed values, by which the resultant output signal will have improved reliability.Type: GrantFiled: August 6, 2012Date of Patent: October 21, 2014Assignee: Elan Microelectronics CorporationInventors: Chia-Hsing Lin, Po-Hao Kuo, Yi-Hsin Tao
-
Patent number: 8698512Abstract: A capacitive touchpad includes a plurality of parallel traces configured in a capacitance sensor layout scheme such that the maximum sensor gap is smaller than the sensor pitch to improve the sensor response linearity of the capacitive touchpad.Type: GrantFiled: July 20, 2011Date of Patent: April 15, 2014Assignee: Elan Microelectronics CorporationInventors: Yi-Hsin Tao, Chia-Hsing Lin, Wen-Jun Hsu
-
Patent number: 8674960Abstract: A detector circuit and detect method of a capacitive touch panel conditionally abort sensing of useless traces of the capacitive touch panel when the capacitive touch panel senses the traces thereof. For a selected trace, the trace voltage thereof is sampled to be compared with a threshold voltage. If the sampled voltage is lower than the threshold voltage, the sensing of this trace is aborted and thus the operation of the detector circuit is reduced to improve the performance of the capacitive touch panel.Type: GrantFiled: August 25, 2010Date of Patent: March 18, 2014Assignee: Elan Microelectronics CorporationInventors: Chia-Hsing Lin, Yi-Hsin Tao, Hsuan-Wen Tseng
-
Patent number: 8619056Abstract: Ghost resolution sensing methods are provided for capacitive touch panels. When ghost is detected involving two points on a capacitive touch panel, for each of the two points, the intersected traces at that one are concurrently charged to sense the capacitance value from either one of the intersected traces, and according thereto, a real point and a ghost point can be distinguished from each other. Alternatively, the intersected traces are crisscross driven by two synchronous and in phase signals or synchronous but out of phase signals, to sense the capacitance values at the two points. Preferably, intersectional calibration is performed in conjunction therewith, to recognize the real points.Type: GrantFiled: December 30, 2009Date of Patent: December 31, 2013Assignee: Elan Microelectronics Corp.Inventors: Chia-Hsing Lin, Yi-Hsin Tao, Po-Hao Kuo, Hsin-Shieh Tsai, Min-Jhih Lin
-
Publication number: 20130299330Abstract: A touch panel has multiple first-axis sensing lines and multiple second-axis sub-sensing sets. Each first-axis sensing line has a second-axis sensing set formed therein with multiple second-axis sensing part of the second-axis sensing set spaced apart along the first axis. The second-axis sub-sensing parts at each identical coordinate of the second axis are connected to constitute a second-axis sensing line, and the first-axis sensing lines and the second-axis sensing lines are mutually crossed. As the second-axis sub-sensing parts constituting each second-axis sensing line are separately enclosed in different first-axis sensing lines, the capacitance values of capacitive coupling between the first-axis sensing lines and the second-axis sensing lines are relatively higher and more stable.Type: ApplicationFiled: November 21, 2012Publication date: November 14, 2013Applicant: ELAN MICROELECTRONICS CORPORATIONInventors: Yi-Hsin TAO, Wen-Jun HSU
-
Publication number: 20130249852Abstract: For a capacitive touch device having a capacitive touch sensor to be sensed to generate sensed values, a sensing apparatus and method statistically analyze the sensed values generated in a certain time period to evaluate the sensing quality thereof, discard the poor reliable sensed values, and re-sense the capacitive touch sensor to generate new sensed values, by which the resultant output signal will have improved reliability.Type: ApplicationFiled: August 6, 2012Publication date: September 26, 2013Inventors: Chia-Hsing LIN, Po-Hao Kuo, Yi-Hsin Tao