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公开(公告)号：US20200042140A1
公开(公告)日：2020-02-06
申请号：US16653172
申请日：2019-10-15
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Leonard Liviu DINU , Hugo GICQUEL
Abstract: An electronic device includes a plurality of charge-to-current converters each including a first NMOS transistor having a source coupled to a sense line, a first capacitor between a gate and source of the first NMOS transistor so that a transient component of noise from the sense line is applied to both, a first PMOS transistor having a source coupled to the sense line, a second capacitor between a gate and source of the first PMOS transistor so the transient component of the noise is applied to both, a first current mirror having an input coupled to a drain of the first NMOS transistor and an output coupled to an output for that charge to current converter, and a second current mirror having an input coupled to a drain of the first PMOS transistor and an output coupled to the output for that charge to current converter.
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22.发明申请公开(公告)号：US20200014914A1
公开(公告)日：2020-01-09
申请号：US16502483
申请日：2019-07-03
Inventor： Lookah CHUA , Jansen Reyes DUEY , Tarek LULE , Mathieu THIVIN
IPC: H04N17/00 , H04N5/369 , H04N5/3745
Abstract: An electronic device includes an array of image pixels, with the array of image pixels having inputs coupled to control lines and outputs coupled to output lines, and at least one array of dummy pixels, with the at least one array of dummy pixels having inputs coupled to the control lines. Each dummy pixel of the at least one array of dummy pixels is configured to provide a certain output signal in an absence of a fault with at least one of the control lines or of a fault with at least one of the output lines, such that a lack of output of the certain output signal by one or more of the dummy pixels of the at least one array of dummy pixels indicates the fault.
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公开(公告)号：US10530348B2
公开(公告)日：2020-01-07
申请号：US16273317
申请日：2019-02-12
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Beng-Heng Goh , Yi Ren Chin
Abstract: An electronic device includes clock generation circuitry. The clock generation circuitry includes a first flip flop receiving as input a device clock and being triggered by an input clock and a second flip flop receiving, as input, output from the first flip flop and being triggered by the input clock. A first inverter receives output from the first flip flop as input and a second inverter receives output from the second flip flop as input. A first AND gate receives, as input, output from the second flip flop and the first inverter, and generates a first clock as output. A second AND gate receives, as input, output from the first flip flop and the second inverter, and generates a second clock as output.
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公开(公告)号：US20190356249A1
公开(公告)日：2019-11-21
申请号：US16410674
申请日：2019-05-13
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Kaufik LINGGAJAYA
Abstract: The half-bridges driving a multiphase motor are controlled to perform a sequence of operations to support charging a hold capacitor. First, in a brake configuration, the half-bridge transistors are controlled such that either high-side transistors or low-side transistors of the half-bridges are turned on. Second, in an active step-up configuration, the half-bridge transistors are controlled such that the high-side transistor of a first half-bridge and the low-side transistor of a second half-bridge are both turned on and the low-side transistor of the first half-bridge and the high-side transistor of the second half-bridge are both turned off. Third, in an active brake configuration, the half-bridge transistors are controlled such that the low-side transistor of the first half-bridge and the high-side transistor of the second half-bridge are both turned on and the high-side transistor of the first half-bridge and the low-side transistor of the second half-bridge stage are both turned off.
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公开(公告)号：US10444899B2
公开(公告)日：2019-10-15
申请号：US15412824
申请日：2017-01-23
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Manivannan Ponnarasu
Abstract: A touch screen controller includes input circuitry receiving touch data from a touch screen, and processing circuitry. The processing circuitry determines first coordinates of a touch at a first time, based upon the received touch data. A first threshold window is set about the first coordinates, with the first threshold window having a central point at the first coordinates, and a second threshold window is set about the first coordinates, with the second threshold window having a central point at the first coordinates and being larger than the first threshold window. Second coordinates of the touch are determined at a second time, based upon the received touch data, and where the second coordinates are not within the first threshold window but are within the second threshold window, the second coordinates are corrected based upon a distance between the second coordinates and the central point of the second threshold window.
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Patent Agency Ranking
公开(公告)号：US20190267899A1
公开(公告)日：2019-08-29
申请号：US16405861
申请日：2019-05-07
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Kong Yin LEONG
Abstract: The amount of power being output to the load is sensed by sampling the frequency of the pulse width modulation signal that is controlling the switch that is providing the power to the load. If the pulse width modulation signal has a high frequency, then it will be providing higher power to the load. As the power drawn by the load decreases, the frequency of the pulse width modulation power supply signal will decrease. By sensing and periodically sampling the frequency of the pulse width modulation signal that is providing power, the demand of the load can be quickly and accurately determined. As the power demand of the load decreases, the peak current that the power supply switch can provide also decreases. The permitted peak current dynamically changes to adapt to the power drawn by the load.
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公开(公告)号：US10394349B2
公开(公告)日：2019-08-27
申请号：US15953017
申请日：2018-04-13
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Chee Weng Cheong , Leonard Liviu Dinu , Dianbo Guo , Kien Beng Tan
IPC: G06F3/038 , G06F3/041 , H04L27/00 , G06F3/0354
Abstract: A system and method for synchronizing two devices in communication with each other. When communication between the two devices is to be established, a synchronization process may be invoked. In an embodiment, a first device may initiate sending synchronization signals having rising edge and falling edge pairs. The second device may include a controller configured to receive the synchronization signals. However, noise may inhibit the ability of the controller to correctly receive and/or interpret the synchronization signals. Noise may cause detection components to falsely detect noise as a synchronization signal or may cause detection components to miss detection of an actual synchronization signal. A window generator may be used to generate comparison windows for the controller to detect synchronization signals. Further, the detection window duration and start times may be adjusted based on previously detected (or undetected) synchronization signals in order to compensate for noise overshadowing synchronization signals.
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公开(公告)号：US10209831B2
公开(公告)日：2019-02-19
申请号：US15847266
申请日：2017-12-19
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Rooney Kim , Lokesh Kumar Korapati
Abstract: A method of compensated touch data values disclosed herein includes acquiring touch data values about a dead sensing zone of a touch screen, and determining a peak value of those touch data values. Then, a new peak value is calculated as a function of an average of the peak value and another value of the touch data value, and a sharpness value for the dead sensing zone is generated if a second highest value of the touch data values is less than the new peak value. Thereafter, compensated touch data values are generated for the dead sensing zone if the second highest value is greater than the new peak value.
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公开(公告)号：US10206247B2
公开(公告)日：2019-02-12
申请号：US14856473
申请日：2015-09-16
Inventor： Fuchao Wang , Olivier Le Neel , Ravi Shankar
Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
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公开(公告)号：US10156945B2
公开(公告)日：2018-12-18
申请号：US14936166
申请日：2015-11-09
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Leonard Liviu Dinu , Chao Chao Zhang
Abstract: An electronic device includes a touch screen controller. The touch screen controller is configured to asynchronously measure a capacitance between a sense line and a drive line of a sensing layer with respect to a horizontal sync signal of a display layer. In addition, the touch screen controller is also configured to disconnect from the sense line for a given period of time following a rising edge of the horizontal sync signal so as to reduce capacitive coupling of display noise from the horizontal sync signal to the sensing layer.
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