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公开(公告)号：US11283429B1
公开(公告)日：2022-03-22
申请号：US17223925
申请日：2021-04-06
Applicant: PixArt Imaging Incorporation
Inventor： Boon-Eu Seow , Ping-Seng Lee
Abstract: A non-overlapping clock generator generating an in-phase output clock signal and a reversed-phase output clock signal which are non-overlapped with each other, includes: a first and a second XOR gates, a first and a second load transistors, which are cross coupled, and includes: a first and a second delay circuits. The first delay circuit is coupled between the in-phase output clock signal and a control terminal of the first load transistor. The second delay circuit is coupled between the reversed-phase output clock signal and a control terminal of the second load transistor. Each of the XOR gates includes at least one pass transistor logic circuit configured to execute XOR logic operation and coupled to a first control voltage. A non-overlapping period is determined according to the first control voltage and/or a first delay period of the first delay circuit and a second delay period of the second delay circuit.
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公开(公告)号：US20210247848A1
公开(公告)日：2021-08-12
申请号：US17244915
申请日：2021-04-29
Applicant: PixArt Imaging Incorporation
Inventor： Yu-Hao Huang , Yi-Fang Lee , Ming-Tsan Kao , Nien-Tse Chen
IPC: G06F3/01 , G06F3/03 , G06F3/00 , G06F3/0484 , G06F3/0482 , G06F3/0488 , G06F3/023 , G06T19/00 , G06F3/0485 , G06F3/0481 , G06K9/00 , G06T7/20
Abstract: The present invention discloses a method for outputting a command by detecting a movement of an object, which includes the following steps. First, an image capturing device captures images generated by the movement of the object at different timings by. Next, a motion trajectory is calculated according to the plurality of images. Further next, a corresponding command is outputted according to the motion trajectory. The present invention also provides a system which employs the above-mentioned method.
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公开(公告)号：US10999549B2
公开(公告)日：2021-05-04
申请号：US16447072
申请日：2019-06-20
Applicant: PixArt Imaging Incorporation
Inventor： Kuan Tang , Yi-Cheng Chiu , Chia-Chi Kuo , Jui-Te Chiu
Abstract: A column parallel ADC circuit includes: plural column ADCs and a digital processing circuit. The plural column ADCs generate respective plural digital counts. The plural column ADCs include a first column ADC and a second column ADC. The first column ADC generates a first digital count according to a first analog signal, and the second column ADC generates a second digital count according to a second analog signal. The first digital count is a difference between a first digital signal and a second digital signal. The first and the second digital signals correspond to the first and the second analog signals respectively. The digital processing circuit generates the plural digital signals, wherein the digital processing circuit generates the first digital signal according to the first digital count and the second digital signal.
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公开(公告)号：US10969472B2
公开(公告)日：2021-04-06
申请号：US16829261
申请日：2020-03-25
Applicant: PixArt Imaging Incorporation
Inventor： Nientse Chen
Abstract: A proximity sensor includes: a transmitter unit for transmitting a light signal; a receiver unit for receiving the light signal reflected by an object to determine a proximity status of the object; and a housing defining a first enclosed accommodation space for accommodating the receiver unit, wherein the portion of the housing which defines the first enclosed accommodation space has a sealed light passage made of a light-transmissible material such that the receiver unit is capable of receiving the light signal reflected by the object through the light passage. The housing can further include a second enclosed accommodation space for accommodating the transmitter unit.
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25.发明申请公开(公告)号：US20210020803A1
公开(公告)日：2021-01-21
申请号：US17061492
申请日：2020-10-01
Applicant: PixArt Imaging Incorporation
Inventor： Sen-Huang Huang , Hsin-Hui Hsu , Nien-Tse Chen
IPC: H01L31/18 , H01L21/02 , H01L31/103 , H01L27/146
Abstract: An optoelectronic device includes: a substrate made of a first material; a region in the substrate, the region being made of a second material different from the first material; an N-well in the region made of the second material; and a photo diode formed in the region by ion implantation. The second material for example is silicon germanium (Si1-xGex) or silicon carbide (Si1-yCy), wherein 0
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Patent Agency Ranking
公开(公告)号：US10859442B2
公开(公告)日：2020-12-08
申请号：US16503517
申请日：2019-07-04
Applicant: PixArt Imaging Incorporation
Inventor： Ming-Han Tsai , Shin-Lin Wang
Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.
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公开(公告)号：US20200149954A1
公开(公告)日：2020-05-14
申请号：US16745483
申请日：2020-01-17
Applicant: PixArt Imaging Incorporation
Inventor： Hui-Hsuan Chen , Nien-Tse Chen
Abstract: A proximity sensing device includes: a light source, a sensing unit, a light guide unit, and a window. The light source emits light, which is guided by the light guide unit to the window. The emitted light reflected by an object is received by the same window. The light guide unit includes a partial-transmissive-partial-reflective (PTPR) optical element, whereby the light emitted from the light source is reflected by the PTPR optical element, while the light reflected by the object passes through the PTPR optical element. There is only one window required.
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公开(公告)号：US20190214477A1
公开(公告)日：2019-07-11
申请号：US16357375
申请日：2019-03-19
Applicant: PixArt Imaging Incorporation
Inventor： Chih-Ming Sun , Hsin-Hui Hsu , Ming-Han Tsai
IPC: H01L29/51 , H01L29/423 , H01L21/762 , H01L29/40 , H01L21/308
CPC classification number: H01L29/518 , H01L21/3086 , H01L21/76224 , H01L29/401 , H01L29/42324
Abstract: The present invention discloses a manufacturing method for a semiconductor device. The manufacturing method includes: providing a substrate; forming a semiconductor stacked structure on the substrate; forming at least apart of a stacked cap layer on the semiconductor stacked structure, wherein the part of the stacked cap layer includes a nitride layer; removing a part of the nitride layer; forming the rest part of the stacked cap layer; forming a protection layer on the stacked cap layer, and etching the protection layer to form an opening, wherein the nitride layer is not exposed by the opening; and introducing an etchant material into the opening to etch the substrate. The present invention also provides a semiconductor device made by the method.
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公开(公告)号：US09723241B2
公开(公告)日：2017-08-01
申请号：US14960178
申请日：2015-12-04
Applicant: PixArt Imaging Incorporation
Inventor： Mei-Chao Yeh , Chien-Jung Chou
CPC classification number: H04N5/378 , H04N5/3577 , H04N5/361
Abstract: The present invention provides an image sensor circuit with a power noise filtering function and a control method thereof. The image sensor circuit includes: an image sensing unit, for sensing an image, to generate an image sensed signal; a power noise sensing unit, for sensing a power noise, to generate a power noise signal; a differential amplifier circuit, which is coupled to the image sensing unit and the power noise sensing unit, for receiving the image sensed signal and the power noise signal, to generate a differential filtered signal by a differential amplification operation between the image sensed signal and the power noise signal; and an analog-to-digital converter (ADC) circuit, which is coupled to the differential amplifier circuit, for receiving the differential filtered signal, to generate a digital image signal.
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公开(公告)号：US09723181B2
公开(公告)日：2017-08-01
申请号：US14944564
申请日：2015-11-18
Applicant: PixArt Imaging Incorporation
Inventor： En-Feng Hsu , Ming-Tsan Kao , Yu-Hao Huang , Yi-Hsien Ko , Nien-Tse Chen
Abstract: The present invention discloses a gesture recognition apparatus including a substrate, a light emitting device, an image sensor and a processing unit. The light emitting device is for emitting a light beam according to a first clock signal. The image sensor is disposed on the substrate and is for receiving the light beam reflected by an object according to a second clock signal to generate an object image. The processing unit is disposed on the substrate and is for recognizing the object image detected by the image sensor to provide a command signal. There is a correlation between a period of the first clock signal and a period of the second clock signal. The present invention also provides a complex optical apparatus.
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