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公开(公告)号：US09806737B2
公开(公告)日：2017-10-31
申请号：US15369777
申请日：2016-12-05
申请人： IMEC VZW
摘要： A circuit and a method for converting an analog signal to a digital value representation is disclosed. In one aspect, the circuit includes an incremental sigma-delta analog-to-digital converter (ADC). The circuit further includes a first input line for providing a primary analog signal representing a sensor measurement to the incremental sigma-delta ADC. The circuit further includes a second input line for providing a secondary analog signal to the incremental sigma-delta ADC. The incremental sigma-delta ADC receives the primary and secondary analog signals during a first period (TADC1) and a second period (TADC2), respectively. The circuit further includes a filter configured to weight the digital values in a sequence of digital values output by the incremental sigma-delta ADC, and to output a single digital value representing the sensor measurement.
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公开(公告)号：US20170184452A1
公开(公告)日：2017-06-29
申请号：US15389043
申请日：2016-12-22
申请人： IMEC VZW
CPC分类号： G01J3/0264 , G01J3/0262 , G01J3/0291 , G01J3/12 , G01J3/28 , G01J3/2803 , G01J2003/1213 , G01J2003/2806 , G01J2003/2826 , G01J2003/2866
摘要： A spectrometer module comprising a plurality of separate electronic circuit modules is disclosed. Each separate electronic module comprises an integrated sensor circuit including a light sensitive area occupying part of an area of the integrated sensor circuit, the integrated sensor circuit being arranged to detect incident light. In one aspect, the plurality of separate electronic circuit modules includes a group of adjacent electronic circuit modules. The light sensitive areas of the electronic circuit modules in the group are so arranged on the respective integrated sensor circuits that the group of adjacent electronic circuit modules is mounted so that the light sensitive areas thereof are arranged in vicinity to each other. The spectrometer module includes an optical module, which is common to said plurality of separate electronic circuit modules and arranged to direct incident light towards the light sensitive areas of each of said electronic circuit modules.
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公开(公告)号：US09967499B2
公开(公告)日：2018-05-08
申请号：US14515263
申请日：2014-10-15
申请人： IMEC vzw
发明人： Jonathan Borremans
CPC分类号： H04N5/378 , H04N5/243 , H04N5/3575
摘要： The present description relates to a readout circuit for digitizing an analog input signal of an imaging device into a digital output. The readout circuit comprises a pixel signal input for providing an analog signal from at least one imaging pixel element, a variable gain amplifier for providing an amplified signal of the analog signal by a gain factor, and a first analog to digital conversion means for quantizing the analog signal into a first digital signal. The circuit further comprises a control means for setting the gain factor of the variable gain amplifier by taking into account the first digital signal, and a second analog to digital conversion means for quantizing the amplified signal into a second digital signal. The circuit also comprises a digital output for outputting a signal determined as function of at least the second digital signal.
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公开(公告)号：US09756270B2
公开(公告)日：2017-09-05
申请号：US14965714
申请日：2015-12-10
发明人： Jonathan Borremans , Linkun Wu
IPC分类号： H04N3/14 , H04N5/335 , H04N5/3745 , H04N5/369 , H04N5/355
CPC分类号： H04N5/3745 , H04N5/3559 , H04N5/3698 , H04N5/37452
摘要： A pixel for converting incident subatomic particles into an output voltage signal is disclosed. In one aspect, the pixel includes a photo-detector adapted to receive incident subatomic particles and generate an input voltage signal corresponding to an intensity of the received particles. The pixel also includes a passive amplifier adapted to passively amplify the input voltage signal to generate an output voltage signal. The passive amplification reduces the noise of the output voltage signal, and may have a higher quantum efficiency than typical in-pixel amplification devices and methods.
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公开(公告)号：US20150102206A1
公开(公告)日：2015-04-16
申请号：US14515263
申请日：2014-10-15
申请人： IMEC vzw
发明人： Jonathan Borremans
CPC分类号： H04N5/378 , H04N5/243 , H04N5/3575
摘要： The present description relates to a readout circuit for digitizing an analog input signal of an imaging device into a digital output. The readout circuit comprises a pixel signal input for providing an analog signal from at least one imaging pixel element, a variable gain amplifier for providing an amplified signal of the analog signal by a gain factor, and a first analog to digital conversion means for quantizing the analog signal into a first digital signal. The circuit further comprises a control means for setting the gain factor of the variable gain amplifier by taking into account the first digital signal, and a second analog to digital conversion means for quantizing the amplified signal into a second digital signal. The circuit also comprises a digital output for outputting a signal determined as function of at least the second digital signal.
摘要翻译： 本说明书涉及用于将成像装置的模拟输入信号数字化为数字输出的读出电路。 读出电路包括用于提供来自至少一个成像像素元件的模拟信号的像素信号输入，用于通过增益因子提供模拟信号的放大信号的可变增益放大器，以及用于量化所述模拟信号的第一模数转换装置 模拟信号转换为第一数字信号。 电路还包括用于通过考虑第一数字信号来设置可变增益放大器的增益因子的控制装置和用于将放大的信号量化为第二数字信号的第二模数转换装置。 该电路还包括用于输出确定为至少第二数字信号的功能的信号的数字输出。
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公开(公告)号：US09942502B2
公开(公告)日：2018-04-10
申请号：US14633552
申请日：2015-02-27
申请人： IMEC vzw
发明人： Jonathan Borremans
IPC分类号： H04N5/378 , H04N5/355 , H04N5/363 , H04N5/374 , H04N5/3745
CPC分类号： H04N5/378 , H04N5/355 , H04N5/363 , H04N5/3745 , H04N5/37452
摘要： A pixel architecture having an in-pixel amplifier comprising an NMOS transistor and a depletion-mode NMOS load is disclosed. In one aspect, the pixel architecture comprises a pixel core including a pixel photodiode for generating an output signal in accordance with incident light. Further, the in-pixel amplifier is connected to a pixel core to amplify the output signal before it is stored in a column buffer before being read out at output of the pixel architecture. By having an in-pixel amplifier that can be used for amplification of the output signal inside the pixel architecture, a larger output value is obtained which may be stored inside the pixel architecture on a small capacitor with improved signal-to-noise performance. This in-pixel amplification can also improve the quality of stored signals for global shutter operation.
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公开(公告)号：US20170195586A1
公开(公告)日：2017-07-06
申请号：US15389057
申请日：2016-12-22
申请人： IMEC VZW
CPC分类号： H04N5/332 , G01C3/08 , G01J3/0237 , G01J3/0248 , G01J3/0278 , G01J3/28 , G01J3/2823 , G01J2003/2826 , G06T7/90 , G06T2207/10016 , H04N5/23212 , H04N5/23222 , H04N5/23293
摘要： A user device including a camera, a spectrometer module, and a processing unit is disclosed. In one aspect, the camera is adapted to acquire at least one image of a scenery which falls within a field of view of the camera. The spectrometer module is adapted to acquire spectral information from a region within the scenery which region falls within a field of view of the spectrometer module. The processing unit is adapted to determine, based on information relating the field of view of the spectrometer module to the field of view of the camera, a spectrometer module target area, within the at least one image, corresponding to the region. The processing unit is adapted to output display data to a screen of the user device for providing an indication of the target area on the display.
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公开(公告)号：US20170179976A1
公开(公告)日：2017-06-22
申请号：US15369777
申请日：2016-12-05
申请人： IMEC VZW
IPC分类号： H03M3/00
摘要： A circuit and a method for converting an analog signal to a digital value representation is disclosed. In one aspect, the circuit includes an incremental sigma-delta analog-to-digital converter (ADC). The circuit further includes a first input line for providing a primary analog signal representing a sensor measurement to the incremental sigma-delta ADC. The circuit further includes a second input line for providing a secondary analog signal to the incremental sigma-delta ADC. The incremental sigma-delta ADC receives the primary and secondary analog signals during a first period (TADC1) and a second period (TADC2), respectively. The circuit further includes a filter configured to weight the digital values in a sequence of digital values output by the incremental sigma-delta ADC, and to output a single digital value representing the sensor measurement.
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公开(公告)号：US20150312502A1
公开(公告)日：2015-10-29
申请号：US14633552
申请日：2015-02-27
申请人： IMEC vzw
发明人： Jonathan Borremans
IPC分类号： H04N5/378
CPC分类号： H04N5/378 , H04N5/355 , H04N5/363 , H04N5/3745 , H04N5/37452
摘要： A pixel architecture having an in-pixel amplifier comprising an NMOS transistor and a depletion-mode NMOS load is disclosed. In one aspect, the pixel architecture comprises a pixel core including a pixel photodiode for generating an output signal in accordance with incident light. Further, the in-pixel amplifier is connected to a pixel core to amplify the output signal before it is stored in a column buffer before being read out at output of the pixel architecture. By having an in-pixel amplifier that can be used for amplification of the output signal inside the pixel architecture, a larger output value is obtained which may be stored inside the pixel architecture on a small capacitor with improved signal-to-noise performance. This in-pixel amplification can also improve the quality of stored signals for global shutter operation.
摘要翻译： 公开了一种具有包括NMOS晶体管和耗尽型NMOS负载的像素内放大器的像素结构。 在一个方面，像素架构包括像素核心，其包括用于根据入射光产生输出信号的像素光电二极管。 此外，在像素结构的输出被读出之前，像素内放大器连接到像素核，以将其输出到列缓冲器之前放大输出信号。 通过具有能够用于像素架构内的输出信号的放大的像素内放大器，可以获得更大的输出值，其可以存储在具有改善的信噪比性能的小电容器上的像素架构内。 该像素内放大还可以提高用于全局快门操作的存储信号的质量。
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公开(公告)号：US10778926B2
公开(公告)日：2020-09-15
申请号：US16458641
申请日：2019-07-01
申请人： IMEC VZW
IPC分类号： H04N5/378 , H04N5/3745 , H04N5/365 , H04N5/357
摘要： Example embodiments relate to an image sensor and a method for read-out of pixel signal. One embodiment includes an image sensor. The image sensor includes an array of pixels for detecting light incident on the pixel. The image sensor also includes an in-pixel correlated double sampling (CDS) circuitry. The image sensor also includes a column line that extends along and is associated with a column of pixels in the array of pixels. The column line is configured to selectively receive a pixel signal from a pixel in the column. Further, the image sensor includes a voltage-drop correction line that extends along and is associated with the column of pixels. The voltage-drop correction line is configured to provide a correction voltage signal to a pixel in the column such that corrects for voltage drop of the pixel signal in read-out through the column line.
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