Patents by Inventor Jenn Woei Soo
Jenn Woei Soo 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).
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Patent number: 11836318Abstract: A method for operating an electronic device includes a touchscreen controller determining based on a frequency of a vertical synchronization signal (Vsync), whether a first display frame includes an idle time, the idle time being a duration of time remaining in the first display frame after an image displayed on a display of the electronic device is updated during the first display frame. The method further includes in response to determining that the first display frame includes the idle time, the touchscreen controller transmitting an uplink signal in the first display frame, the uplink signal being transmitted during the idle time of the first display frame.Type: GrantFiled: September 1, 2022Date of Patent: December 5, 2023Assignee: STMicroelectronics Asia Pacific Pte Ltd.Inventors: Tchung Jing Siaw, Chen Khoi Chin, Jenn Woei Soo, Cheng Hung Lin
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Patent number: 9524697Abstract: A video display includes a video display panel and a video display drive circuit configured to control a display on condition. A touch screen includes a touch screen panel (mounted on top of the video display panel) and a touch panel control and sense circuit configured to operate the touch screen panel in a self-capacitance mode. The touch panel control and sense circuit includes sense drive circuits configured to generate sense drive signals for application to sense lines of the touch screen panel. A controller controls actuation of the sense drive circuits so that the sense drive signals are synchronized to the display on condition. In an implementation, the leading edges of the sense drive signals are synchronized to the display on condition. In another implementation, a window is synchronized to the display on condition and the leading edges of the sense drive signals exhibit jitter within the window.Type: GrantFiled: September 2, 2014Date of Patent: December 20, 2016Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Kusuma Adi Ningrat, Giuseppe Noviello, Jenn Woei Soo, Lokesh Kumar Korapati
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Patent number: 9524067Abstract: A capacitive touch system generates data indicative of sensed capacitance measured at capacitive sensing nodes of a capacitive touch panel. A signal processing circuit is coupled to receive the data indicative of sensed capacitance from the capacitive touch system. The signal processing circuit operates to fit a parabolic curve to the data indicative of sensed capacitance. A sharpness of the fit parabolic curve is indicative of whether touch versus hover interaction with the capacitive touch panel. A touch detection threshold is as a function of the determined sharpness. The set touch detection threshold is then applied against the data indicative of sensed capacitance in order to make a touch detection.Type: GrantFiled: September 12, 2014Date of Patent: December 20, 2016Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Jenn Woei Soo, Kusuma Adi Ningrat
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Publication number: 20160077625Abstract: A capacitive touch system generates data indicative of sensed capacitance measured at capacitive sensing nodes of a capacitive touch panel. A signal processing circuit is coupled to receive the data indicative of sensed capacitance from the capacitive touch system. The signal processing circuit operates to fit a parabolic curve to the data indicative of sensed capacitance. A sharpness of the fit parabolic curve is indicative of whether touch versus hover interaction with the capacitive touch panel. A touch detection threshold is as a function of the determined sharpness. The set touch detection threshold is then applied against the data indicative of sensed capacitance in order to make a touch detection.Type: ApplicationFiled: September 12, 2014Publication date: March 17, 2016Applicant: STMicroelectronics Asia Pacific Pte LtdInventors: Jenn Woei Soo, Kusuma Adi Ningrat
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Publication number: 20160062546Abstract: A video display includes a video display panel and a video display drive circuit configured to control a display on condition. A touch screen includes a touch screen panel (mounted on top of the video display panel) and a touch panel control and sense circuit configured to operate the touch screen panel in a self-capacitance mode. The touch panel control and sense circuit includes sense drive circuits configured to generate sense drive signals for application to sense lines of the touch screen panel. A controller controls actuation of the sense drive circuits so that the sense drive signals are synchronized to the display on condition. In an implementation, the leading edges of the sense drive signals are synchronized to the display on condition. In another implementation, a window is synchronized to the display on condition and the leading edges of the sense drive signals exhibit jitter within the window.Type: ApplicationFiled: September 2, 2014Publication date: March 3, 2016Applicant: STMicroelectronics Asia Pacific Pte LtdInventors: Kusuma Adi Ningrat, Giuseppe Noviello, Jenn Woei Soo, Lokesh Kumar Korapati
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Patent number: 9236861Abstract: A capacitive proximity sensor circuit capable of distinguishing between instances of detected user proximity includes one or more guard electrodes, a first sensor, and a second sensor. The capacitive proximity sensor is installed in a device such that a first sensor faces a first component of the device, and the second sensor faces a second component of the device. The first and second sensors measure a capacitance to detect proximity of a user relative to the respective sensor. The guard electrode is provided to mitigate stray capacitance to reduce error in the capacitance measurements obtained by the first and second sensors.Type: GrantFiled: July 2, 2012Date of Patent: January 12, 2016Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Jenn Woei Soo, Kien Beng Tan
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Patent number: 9176597Abstract: A directional capacitive proximity sensor circuit capable of providing directional capacitive proximity sensing includes one or more guard electrodes, a first sensor, and a second sensor. The directional capacitive proximity sensor is installed in a device such that the first sensor is positioned near a first component of the device, and the second sensor is positioned near a second component of the device. The first and second sensors measure a capacitance to detect proximity of a user relative to the respective sensor, wherein the detected proximity is interpreted to determine a direction in which the user proximity is detected relative to the directional capacitive proximity sensor circuit. The guard electrode is provided to mitigate stray capacitance to reduce error in the capacitance measurements obtained by the first and second sensors.Type: GrantFiled: July 2, 2012Date of Patent: November 3, 2015Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Jenn Woei Soo, Kien Beng Tan
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Patent number: 9164629Abstract: A touch screen having a capacitive touch-sensitive pad overlaying a display area incorporates one or more slide features each having conductive plates. The conductive plates are located outside the display area of the touch screen and are powered via one or more connections to existing touch sensor circuitry comprising the touch-sensitive pad. The slide features of the touch screen do not obstruct a user's view of the display screen and, when compared to conventional touch screen slide features, reduce the circuitry required for detecting and/or processing a slide touch.Type: GrantFiled: August 6, 2012Date of Patent: October 20, 2015Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Jenn Woei Soo, Kien Beng Tan, Tze Yong Poh
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Publication number: 20140035861Abstract: A touch screen having a capacitive touch-sensitive pad overlaying a display area incorporates one or more slide features each having conductive plates. The conductive plates are located outside the display area of the touch screen and are powered via one or more connections to existing touch sensor circuitry comprising the touch-sensitive pad. The slide features of the touch screen do not obstruct a user's view of the display screen and, when compared to conventional touch screen slide features, reduce the circuitry required for detecting and/or processing a slide touch.Type: ApplicationFiled: August 6, 2012Publication date: February 6, 2014Applicant: STMicroelectronics Asia Pacific Pte Ltd.Inventors: Jenn Woei Soo, Kien Beng Tan, Tze Yong Poh
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Publication number: 20140002108Abstract: A capacitive proximity sensor circuit capable of distinguishing between instances of detected user proximity includes one or more guard electrodes, a first sensor, and a second sensor. The capacitive proximity sensor is installed in a device such that a first sensor faces a first component of the device, and the second sensor faces a second component of the device. The first and second sensors measure a capacitance to detect proximity of a user relative to the respective sensor. The guard electrode is provided to mitigate stray capacitance to reduce error in the capacitance measurements obtained by the first and second sensors.Type: ApplicationFiled: July 2, 2012Publication date: January 2, 2014Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTDInventors: Jenn Woei Soo, Kien Beng Tan
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Publication number: 20140004905Abstract: A directional capacitive proximity sensor circuit capable of providing directional capacitive proximity sensing includes one or more guard electrodes, a first sensor, and a second sensor. The directional capacitive proximity sensor is installed in a device such that the first sensor is positioned near a first component of the device, and the second sensor is positioned near a second component of the device. The first and second sensors measure a capacitance to detect proximity of a user relative to the respective sensor, wherein the detected proximity is interpreted to determine a direction in which the user proximity is detected relative to the directional capacitive proximity sensor circuit. The guard electrode is provided to mitigate stray capacitance to reduce error in the capacitance measurements obtained by the first and second sensors.Type: ApplicationFiled: July 2, 2012Publication date: January 2, 2014Applicant: STMicroelectronics Asia Pacific Pte LtdInventors: Jenn Woei Soo, Kien Beng Tan