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501.发明申请公开(公告)号：US20220057871A1
公开(公告)日：2022-02-24
申请号：US16996197
申请日：2020-08-18
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Chun-Yi Chou
Abstract: A method for force sensing using information from a display panel with a touch sensor and a fingerprint sensor is introduced. The method includes: obtaining, based on touch sensing data from a touch sensing circuit coupled to the touch sensor, first sensing information indicating capacitance value distribution over a touch sensing area due to pressing of an object on the display panel; obtaining, based on fingerprint sensing data from a fingerprint sensing circuit coupled to the fingerprint sensor, second sensing information indicating an effective pressing area due to the pressing of the object; and generating third sensing information indicating a force corresponding to the pressing of the object, based on the first sensing information and the second sensing information. An electronic module capable of facilitating force sensing and computing apparatus capable of force sensing are also provided.
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公开(公告)号：US11250232B2
公开(公告)日：2022-02-15
申请号：US16789448
申请日：2020-02-13
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hung-Kai Chen , Ting-Hsuan Hung , Chih-Yuan Chang , Feng-Lin Chan
IPC: G06K9/00
Abstract: A fingerprint detecting system comprises a fingerprint module, for receiving a fingerprint driving signal and performing a frequency modulation on the fingerprint driving signal, to correspondingly outputting a fingerprint signal with a first frequency based on the fingerprint driving signal, and a signal processing circuit, coupled to the fingerprint module, for receiving the fingerprint signal with the first frequency, performing a frequency demodulation to shift the first frequency of the fingerprint signal to a second frequency, and filtering the fingerprint signal with the second frequency based on the first frequency, whereby the filtered fingerprint signal is used for a fingerprint data analysis.
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公开(公告)号：US11244974B2
公开(公告)日：2022-02-08
申请号：US16833681
申请日：2020-03-30
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jung-Chen Chung
IPC: H01L27/146 , H01L27/148 , H04N5/345
Abstract: An image sensing system includes a panel and an image sensing circuit. The panel includes a plurality of sensing pixels, a plurality of sensing lines and at least one first current source. Each of the plurality of sensing lines is coupled to a line of sensing pixels among the plurality of sensing pixels. Each of the at least one first current source is coupled to one of the plurality of sensing lines. The image sensing circuit, coupled to the panel, includes at least one second current source, each of which is coupled to one of the plurality of sensing lines. Wherein, a first sensing line among the plurality of sensing lines is coupled to a first current source among the at least one first current source and coupled to a second current source among the at least one second current source.
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公开(公告)号：US11244621B2
公开(公告)日：2022-02-08
申请号：US16820805
申请日：2020-03-17
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Chieh-An Lin , Tzu-Chien Tzeng
IPC: G09G3/3225 , G09G3/3258
Abstract: A differential input circuit and a driving circuit including the same are provided. The differential input circuit transforms an analog voltage signal corresponding to a sensing line on an OLED panel to a pair of differential input signals being output to a gain amplifier. The differential input circuit includes a sampling circuit and a scaling circuit. The sampling circuit receives the analog voltage signal and a reference voltage through a first scaling path and a second scaling path, respectively. The scaling circuit includes a first scaling path and a second scaling path. The first scaling path and the second scaling path collectively generate the pair of differential input signals, based on a first shift voltage, a first scaled voltage, a second shift voltage, and a second scaled voltage. The first shift voltage is less than the second shift voltage.
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505.发明授权公开(公告)号：US11244135B2
公开(公告)日：2022-02-08
申请号：US16907306
申请日：2020-06-21
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Wei-Lun Shih , Huang-Chin Tang
Abstract: An electronic circuit including a touch control circuit, a fingerprint sensing circuit and a switch circuit is provided. The touch control circuit is configured to receive touch sensing signals from a panel and determine a touch area according to the touch sensing signals. The fingerprint sensing circuit is configured to receive fingerprint sensing signals corresponding to at least one fingerprint image from fingerprint sensors disposed in the panel via fingerprint sensing lines. The switch circuit is coupled to the fingerprint sensing circuit. The switch circuit is configured to be coupled to a part of the fingerprint sensing lines that is selected to form a fingerprint sensing zone for a fingerprint sensing operation according to the determined touch area. Each of the fingerprint sensing lines is selectable to be a boundary of the fingerprint sensing zone. An electronic device and a method for sensing at least one fingerprint image are also provided.
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Patent Agency Ranking
公开(公告)号：US20220039231A1
公开(公告)日：2022-02-03
申请号：US17388748
申请日：2021-07-29
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yong-Ren Fang , Yi-Chuan Liu
Abstract: A light-emitting diode LED driver and a LED driving device including the LED driver are provided. The light-emitting diode LED driver includes a decoding circuit that receives a data signal and decodes the data signal to generate display data used to drive LEDs to emit light and display and a recovered clock signal. Further provided is an encoding circuit that encodes the decoded display data by using the recovered clock signal to generate an encoded data signal, where the data signal is encoded in a first encoding format, and the encoded data signal is encoded in a second encoding format.
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公开(公告)号：US20220021830A1
公开(公告)日：2022-01-20
申请号：US16933941
申请日：2020-07-20
Applicant: Novatek Microelectronics Corp.
Inventor： Kuo Wei Cheng , Jen-Yi Lin , Jung-Chen Chung
Abstract: An optical sensing device, including a first power rail, a second power rail, and a plurality of optical sensing elements arranged in an array, is provided. Each optical sensing element can include a photo diode, a reset switch, and a buffer. The reset switch can have a control terminal to receive a reset signal. A first terminal of the reset switch can be coupled to the first power rail and a second terminal of the reset switch is coupled to the photo diode. A first terminal of the buffer can be coupled to the second power rail, a second terminal of the buffer can be coupled to the second terminal of the reset switch and the photo diode, and a third terminal of the buffer is configured to provide a sensing signal. The second power rail is separate or independent from the first power rail.
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508.发明申请公开(公告)号：US20220020133A1
公开(公告)日：2022-01-20
申请号：US16933979
申请日：2020-07-20
Applicant: Novatek Microelectronics Corp.
Inventor： Li-Chieh Chen , Yen-Tao Liao
IPC: G06T7/00
Abstract: The disclosure provides a method and an image processor for computing decay factors for display degradation compensation. The method includes the following steps. A sequence of frames including a current frame are received. Whether the current frame is a dynamic frame or a static frame is determined. When the current frame is the dynamic frame, accumulation on decay factors is performed. When the current frame is the static frame, accumulation on the decay factors is not performed.
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公开(公告)号：US11222614B1
公开(公告)日：2022-01-11
申请号：US16985622
申请日：2020-08-05
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Yun-Shu Yang , Yen-Tao Liao , Jen-Ta Yang
Abstract: An image processing method with auto-adjusting gamma value is provided. This image processing method includes: receiving a detected value dependent upon a view angle between a normal direction of a screen and a sight direction of a viewer to the screen; receiving an original video frame with a plurality of pixels; determining at least one gamma table to obtain a gamma value for a pixel of the plurality of pixels according to the detected value, wherein there is an original pixel value corresponding to the pixel; and generating and outputting a corrected pixel value of the pixel based on the gamma value and the original pixel value of the pixel, wherein the screen is configured to show a corrected video frame having the pixel with the corrected pixel value. An image processing assembly and an image processing system are also provided.
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公开(公告)号：US11217152B1
公开(公告)日：2022-01-04
申请号：US17111449
申请日：2020-12-03
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yu-Sheng Ma , Jhih-Siou Cheng , Chun-Fu Lin , Tso-Sheng Chan , Ren-Chieh Yang
IPC: G09G3/32
Abstract: The present invention provides a source driver for driving a light emitting diode panel. The source driver includes a buffer including an output terminal; and a plurality of driving circuits coupled to the buffer. Each of the plurality of driving circuits includes a constant current transistor including a gate controlled by a node voltage of the output terminal of the buffer; and a compensation unit for compensating the node voltage of the output terminal of the buffer.
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