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公开(公告)号：US12131689B2
公开(公告)日：2024-10-29
申请号：US18498107
申请日：2023-10-31
发明人： Ping-Hung Yin , Jia-Shyang Wang , Jia-Sian Lyu
IPC分类号： G09G3/32 , G09G3/3208 , G09G3/3233 , G09G3/3275
CPC分类号： G09G3/32 , G09G3/3208 , G09G3/3233 , G09G3/3275 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2300/0861 , G09G2310/0208 , G09G2310/0251 , G09G2310/0291 , G09G2310/067 , G09G2310/08 , G09G2320/045 , G09G2360/14 , G09G2360/148
摘要： The present invention is related to a display device, including: a plurality of sub-pixel areas, each including a pixel circuit, each pixel circuit including: a diode, configured to be in a forward-biasing state during a displaying phase of the pixel circuit for emitting light and configured to be in a reverse-biasing state in a sensing phase of the pixel circuit so as to generate a sensing voltage; a first circuit by applying gate control signals to each pixel circuit, so that each pixel circuit switches between the display phase and the sensing phase, respectively; and a second circuit including a plurality of readout circuits, each readout circuit includes an operational amplifier for reading out the sensing voltage in the sensing phase.
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公开(公告)号：US20230388671A1
公开(公告)日：2023-11-30
申请号：US18144879
申请日：2023-05-09
发明人： Ping-Hung Yin , Jia-Shyang Wang , Jia-Sian Lyu , Shih-Chan Tai
IPC分类号： H04N25/59 , H04N25/78 , H04N25/771 , H04N25/47 , H04N25/58 , H01L27/146
CPC分类号： H04N25/59 , H04N25/78 , H04N25/771 , H04N25/47 , H04N25/58 , H01L27/14612 , H01L27/14643
摘要： The present invention relates to an image sensing device, including: an image sensing array, a conversion unit, and a processing circuit. The image sensing array is used to generate sensing signals of different periods. The conversion unit is used to convert the sensing signals from analog to digital. The processing circuit is used to generate a frame during an image capturing operation. The image sensing array includes a plurality of sensing sub-pixels, and the sensing sub-pixels have a sensing circuit and a storage circuit. The sensing circuit generates the sensing signals and sequentially stores the sensing signal in the storage circuit. The storage circuit sequentially outputs the sensing signals to the conversion unit.
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公开(公告)号：US20230388666A1
公开(公告)日：2023-11-30
申请号：US18142596
申请日：2023-05-03
发明人： Ping-Hung Yin , Jia-Shyang Wang , Shih-Chan Tai
摘要： Disclosed are an image sensor circuit and an image sensor device including the image sensor circuit device. The image sensor circuit includes a pixel array formed by a plurality of pixel circuits. Each pixel circuit includes a first sub-pixel circuit, a first control circuit, a second sub-pixel circuit and a second control circuit. The first control circuit may sense light in a first wavelength range and control the first sub-pixel circuit to output a first output information at a first frame rate. The second control circuit may sense light in a second wavelength range and control the second sub-pixel circuit to output a second output information at a second frame rate. The first frame rate is higher than the second frame rate, and the first wavelength range does not overlap with the second wavelength range.
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公开(公告)号：US20230388655A1
公开(公告)日：2023-11-30
申请号：US18143084
申请日：2023-05-04
发明人： Ping-Hung Yin , Jia-Shyang Wang , Yu Hsiang Wang
IPC分类号： H04N23/741 , H04N23/13 , H04N23/73 , H04N23/52
CPC分类号： H04N23/741 , H04N23/13 , H04N23/73 , H04N23/52
摘要： The present invention relates to an image sensing device comprising: an image sensing array and an image processing circuit. The image sensing array includes sensing units, and the sensing units respectively generate multiple pieces of pixel data. The multiple pieces of pixel data are generated according to different frame rates under different exposure periods, and include a first pixel data of a first subframe and a second pixel data of a second subframe. The first pixel data is generated by exposing a first exposure period for a first frame rate, and the second pixel data is generated by exposing a second exposure period for a second frame rate. The first frame rate is less than the second frame rate. The first exposure period is greater than the second exposure period, and multiple pieces of the second pixel data are generated during one image capturing operation.
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公开(公告)号：US20230370749A1
公开(公告)日：2023-11-16
申请号：US18302816
申请日：2023-04-19
发明人： Ping-Hung Yin , Jia-Shyang Wang , Dean Wang
IPC分类号： H04N25/78 , H04N25/77 , H04N25/627
CPC分类号： H04N25/78 , H04N25/627 , H04N25/77
摘要： An image sensor and an image sensing method are provided. A readout circuit outputs a first digital sensing signal according to a floating diffusion node voltage of a first pixel circuit reset after a reset stage and a floating diffusion node voltage of a second pixel circuit reset after the reset stage during a reset signal readout period. The readout circuit outputs a second digital sensing signal according to a sensing result of the first pixel circuit and the floating diffusion node voltage of the second pixel circuit reset after the same reset stage during a sensing signal readout period. The image processing circuit judges whether a digital number of at least one of the first digital sensing signal and the second digital sensing signal is abnormal to decide to keep an original digital number, directly set a pixel value, or reset the second digital sensing signal.
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公开(公告)号：US20230370747A1
公开(公告)日：2023-11-16
申请号：US18306988
申请日：2023-04-25
发明人： Ping-Hung Yin , Jia-Shyang Wang , Jai-Jyun Shen
IPC分类号： H04N25/778 , H01L27/146 , H04N25/772
CPC分类号： H04N25/778 , H01L27/14612 , H04N25/772
摘要： Disclosed are an image sensor and an image sensing method. The image sensor includes a first pixel circuit. The first pixel circuit includes a first driving transistor, a first selection transistor, a first transfer transistor, a first reset transistor and a first sensing unit. A control terminal of the first selection transistor is used for receiving a first selection signal. A control terminal of the first transmitting transistor is used for receiving a first transmitting signal. The image sensing method includes the following steps: receiving a first reset signal during a reset period through a control terminal of the first reset transistor; and receiving a first ramp signal during a sensing period through a control terminal of the first reset transistor.
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公开(公告)号：US20230370067A1
公开(公告)日：2023-11-16
申请号：US18300363
申请日：2023-04-13
发明人： Ping-Hung Yin , Jia-Shyang Wang , Jia-Sian Lyu
IPC分类号： H03K19/0185 , H04N25/77 , H04N25/76
CPC分类号： H03K19/018521 , H04N25/77 , H04N25/7795
摘要： An image sensor, a level shifter circuit, and an operation method thereof are provided. The image sensor includes a pixel circuit and a pixel driving circuit. The pixel driving circuit includes first, second, third, fourth, fifth, and sixth transistors. A first terminal of the first transistor is coupled to a first voltage. A first terminal of the second transistor is coupled to the first voltage, and a control terminal of the second transistor is coupled to a control terminal of the first transistor and a second terminal of the first transistor. A first terminal of the third transistor is coupled to the second terminal of the first transistor, and a second terminal of the third transistor is coupled to a ground voltage. A first terminal of the fourth transistor is coupled to a second terminal of the second transistor and an output terminal.
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公开(公告)号：US11525902B2
公开(公告)日：2022-12-13
申请号：US16905918
申请日：2020-06-19
发明人： Ping-Hung Yin , Jia-Shyang Wang
IPC分类号： G01S17/10 , G01S7/481 , G01S7/4863 , G01S7/4865 , G01S7/4861 , G01S7/484 , G01S17/894 , G01S7/48 , G01S17/14
摘要： A time-of-flight ranging device suitable for indirect time-of-flight ranging is provided. The time-of-flight ranging device includes a light emitting module, a first sensing pixel, a second sensing pixel, a differential readout circuit, and a processing circuit. The light emitting module emits a light pulse to a sensing target, so that the sensing target reflects a reflected light pulse. The first sensing pixel generates a first sensing signal and a second sensing signal. The second sensing pixel generates a third sensing signal and a fourth sensing signal. The differential readout circuit generates first digital data according to the first sensing signal and the third sensing signal and generates second digital data according to the second sensing signal and the fourth sensing signal. The processing circuit calculates a distance between the time-of-flight ranging device and the sensing target according to the first digital data and the second digital data.
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公开(公告)号：US11423689B1
公开(公告)日：2022-08-23
申请号：US17666690
申请日：2022-02-08
发明人： Ping-Hung Yin , Jia-Shyang Wang
摘要： Provided is an identification method for an identification system, which includes a sensing area and an image sensor. First, a test object is close to the sensing area, so that the image sensor generates a dynamic image. Next, the test object gradually pressurizes the sensing area. Then, the test object completely covers the sensing area, and the image sensor further produces a perspective image. Finally, an identification module is used to determine whether the dynamic image is a biological image according to the perspective image, and to perform a subtraction operation on the dynamic image as a basis to determine whether to unlock the identification system. Therefore, the identification system and the identification method can achieve a real-time determination on whether the dynamic image is a biological image. Also, the identification method greatly improves the false acceptance rate (FAR) and the false rejection rate (FRR) of the identification system.
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公开(公告)号：US20220014702A1
公开(公告)日：2022-01-13
申请号：US17234806
申请日：2021-04-20
发明人： Ping-Hung Yin , Jia-Shyang Wang
IPC分类号： H04N5/3745 , H04N5/378
摘要： A dynamic vision sensor, including a first sensing pixel, another first sensing pixel, a storage capacitor, and another storage capacitor, is provided. The first sensing pixel includes a plurality of color light sensing sub-pixels, a first pixel circuit, an infrared light sensing sub-pixel, a second pixel circuit, and a ramp capacitor. The ramp capacitor is coupled to a ramp up signal. The second pixel circuit outputs a sensing result of the infrared light sensing sub-pixel to the storage capacitor. The another first sensing pixel includes another plurality of color light sensing sub-pixels, another first pixel circuit, another infrared light sensing sub-pixel, another second pixel circuit, and another ramp capacitor. The another ramp capacitor is coupled to a ramp down signal. The another second pixel circuit outputs a sensing result of the another infrared light sensing sub-pixel to the another storage capacitor.
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