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公开(公告)号：US12058467B2
公开(公告)日：2024-08-06
申请号：US18244296
申请日：2023-09-11
Applicant: PixArt Imaging Inc.
Inventor： Ren-Chieh Liu , Chih-Huan Wu , Yi-Hsien Ko , Han-Chi Liu
IPC: H04N25/772 , H01L27/146
CPC classification number: H04N25/772 , H01L27/14643
Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
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公开(公告)号：US11290671B2
公开(公告)日：2022-03-29
申请号：US17009417
申请日：2020-09-01
Applicant: PixArt Imaging Inc.
Inventor： Ren-Chieh Liu , Chih-Huan Wu , Yi-Hsien Ko , Han-Chi Liu
IPC: H04N5/3745 , H01L27/146
Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
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公开(公告)号：US09570492B2
公开(公告)日：2017-02-14
申请号：US14956364
申请日：2015-12-01
Applicant: PixArt Imaging Inc.
Inventor： Han-Chi Liu , Huan-Kun Pan , En-Feng Hsu
IPC: G01J5/00 , H01L27/146
CPC classification number: H01L27/14621 , H01L27/14627 , H01L27/14685
Abstract: A pixel array of an image sensor includes multiple red, green, blue and panchromatic pixels. The red, green and blue pixels are formed on a substrate during a first process. Planarization material is deposited to form the panchromatic pixels on the substrate and to form a planarization layer on the red, green and blue pixels during the same second process subsequent to the first process. The planarization material of the panchromatic pixels and the planarization layer is characterized in high transmittance and high aspect ratio.
Abstract translation: 图像传感器的像素阵列包括多个红色，绿色，蓝色和全色像素。 在第一处理期间，在基板上形成红色，绿色和蓝色像素。 沉积平面化材料以形成衬底上的全色像素，并且在第一过程之后的相同的第二过程中在红色，绿色和蓝色像素上形成平坦化层。 全色像素和平坦化层的平面化材料的特征在于高透射率和高纵横比。
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公开(公告)号：US20160173116A1
公开(公告)日：2016-06-16
申请号：US14753036
申请日：2015-06-29
Applicant: PixArt Imaging Inc.
Inventor： Hsiang-Wei Hwang , Yung-Hung Chen , Han-Chi Liu
CPC classification number: H03M1/1028 , H03M1/10 , H03M1/12 , H03M1/66
Abstract: A circuit calibrating method, applied to an ACS generating circuit, which comprises a plurality of ACS generating units and activates the ACS generating unit corresponding to different DCCs to generate difference ACSs. The circuit calibrating method comprises: (a) determining which one of the ACSs has a large difference from an ideal value thereof; (b) adjusting a number of the ACS generating units, which are activated by a DCC corresponding to the ACS acquired in the step (a), or a next stage of the DCC corresponding to the ACS acquired in the step (a); and (c) generating the ACS to a target circuit, according to the number of the ACS generating circuits adjusted in the step (b).
Abstract translation: 一种应用于ACS生成电路的电路校准方法，其包括多个ACS生成单元，并且激活对应于不同DCC的ACS生成单元以生成差异ACS。 电路校准方法包括：（a）确定ACS中的哪一个与其理想值有很大差异; （b）调整由对应于步骤（a）中获取的ACS的DCC或与在步骤（a）中获取的ACS对应的DCC的下一级激活的ACS生成单元的数量; 以及（c）根据步骤（b）中调整的ACS发生电路的数量，将目标电路产生到目标电路。
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公开(公告)号：US20160086990A1
公开(公告)日：2016-03-24
申请号：US14956364
申请日：2015-12-01
Applicant: PixArt Imaging Inc.
Inventor： Han-Chi Liu , Huan-Kun Pan , En-Feng Hsu
IPC: H01L27/146
CPC classification number: H01L27/14621 , H01L27/14627 , H01L27/14685
Abstract: A pixel array of an image sensor includes multiple red, green, blue and panchromatic pixels. The red, green and blue pixels are formed on a substrate during a first process. Planarization material is deposited to form the panchromatic pixels on the substrate and to form a planarization layer on the red, green and blue pixels during the same second process subsequent to the first process. The planarization material of the panchromatic pixels and the planarization layer is characterized in high transmittance and high aspect ratio.
Abstract translation: 图像传感器的像素阵列包括多个红色，绿色，蓝色和全色像素。 在第一处理期间，在基板上形成红色，绿色和蓝色像素。 沉积平面化材料以形成衬底上的全色像素，并且在第一过程之后的相同的第二过程中在红色，绿色和蓝色像素上形成平坦化层。 全色像素和平坦化层的平面化材料的特征在于高透射率和高纵横比。
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Patent Agency Ranking
公开(公告)号：US12087773B2
公开(公告)日：2024-09-10
申请号：US18143608
申请日：2023-05-05
Applicant: PixArt Imaging Inc.
Inventor： Yung-Ju Wen , Han-Chi Liu , Hsin-You Ko
IPC: H01L27/092
CPC classification number: H01L27/0921
Abstract: There is provided a logic circuit capable of preventing latch-up. The conducting of a parasitic SCR is prevented by doping an additional N+ active region in the N well region of a PMOS transistor and doping an additional P+ active region in the P well region of an NMOS transistor so as to prevent the occurrence of latch-up.
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公开(公告)号：US11546540B2
公开(公告)日：2023-01-03
申请号：US17672028
申请日：2022-02-15
Applicant: PixArt Imaging Inc.
Inventor： Ren-Chieh Liu , Chih-Huan Wu , Yi-Hsien Ko , Han-Chi Liu
IPC: H04N5/3745 , H01L27/146 , H04N5/355 , H04N5/374
Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
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公开(公告)号：US10609319B2
公开(公告)日：2020-03-31
申请号：US15830754
申请日：2017-12-04
Applicant: PixArt Imaging Inc.
Inventor： Chia-Chi Kuo , Jui-Te Chiu , Han-Chi Liu , Peng-Sheng Chen , Yi-Cheng Chiu
IPC: H04N5/378 , H04N5/369 , H04N5/3745 , H04N5/374 , H04N5/347
Abstract: An image sensor including a first pixel circuit, a second pixel circuit, a first readout line, a second readout line, a first readout circuit, a second readout circuit and an average switch is provided. The first and second pixel circuits are in two columns of a pixel array. The first readout line transmits pixel data of the first pixel circuit to the first readout circuit. The second readout line transmits pixel data of the second pixel circuit to the second readout circuit. The average switch is arranged between the first and second readout lines and used to electrically connect the first and second readout lines in an average mode to average the pixel data on the first and second readout lines.
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公开(公告)号：US10359312B2
公开(公告)日：2019-07-23
申请号：US15687772
申请日：2017-08-28
Applicant: PIXART IMAGING INC.
Inventor： Wooi-Kip Lim , Han-Chi Liu
Abstract: A device, for pixel transfer rate boosting, is provided and includes an image sensing array having a plurality of pixel units, in which each of the plurality of pixel units is configured to generate a pixel signal when receiving an electromagnetic energy, a signal buffer circuit, electrically coupled with the image sensing array to receive the pixel signals, a switch circuit electrically coupled with the signal buffer circuit, a capacitor having a first terminal and a second terminal, in which the first terminal electrically couples with the switch circuit and the second terminal connects to a ground, a comparator, electrically coupled with the switch circuit, and a pull-down unit, electrically coupled with the first terminal of the capacitor and the switch circuit. After the switch circuit is turned on, the pull-down unit pulls the plurality of pixel output signals down.
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公开(公告)号：US09899906B2
公开(公告)日：2018-02-20
申请号：US15606453
申请日：2017-05-26
Applicant: PIXART IMAGING INC.
Inventor： Chao-Chi Lee , Han-Chi Liu
CPC classification number: H02M1/32 , G05F1/56 , H02H9/02 , H02M1/083 , H02M3/00 , H02M3/155 , H02M2001/0045 , H02M2003/1566
Abstract: A surge current compensating circuit has a compensating current generation unit, a bias unit, and a switch unit, for compensating a surge current drawn from a supply power after an output signal of a specific circuit transits. The compensating current generation unit is electrically coupled to the output stage of the specific circuit. The bias unit is electrically coupled to the compensating current generation unit through the switch unit. Before the output signal transits, the switch unit is disabled and the compensating current generation unit is enabled, so as to draw the compensating current from the supply power. After the output signal transits, the switch unit is enabled and the compensating current generation unit is disabled, such that the compensating current is not drawn from the supply power.
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