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1.发明授权公开(公告)号：US09774347B2
公开(公告)日：2017-09-26
申请号：US14583982
申请日：2014-12-29
Applicant: SAMSUNG ELECTRONICS CO., LTD. , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
Inventor： Youngcheol Chae , Jae-Hong Kim , Seungwoo Song , Woojin Jo , Hyunseok Hwang
Abstract: An image sensor includes a pixel array, a controller, and a plurality of analog-to-digital converters. The pixel array includes a plurality of pixels coupled to column lines, respectively, and the plurality of pixels are configured to sense incident lights to generate analog signals through the column lines. The controller generate a conversion control signal that is configurable based on changes of at least one operational condition. The plurality of analog-to-digital converters are coupled to the column lines, respectively. The plurality of analog-to-digital converters perform a delta-sigma modulation and a digital filtering to convert the analog signals to digital signals. The plurality of analog-to-digital converters adjust a conversion gain internally in response to the conversion control signal.
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公开(公告)号：US09473166B2
公开(公告)日：2016-10-18
申请号：US14692787
申请日：2015-04-22
Applicant: SAMSUNG ELECTRONICS CO., LTD. , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
Inventor： Jae-Hong Kim , Youngcheol Chae , Seungwoo Song , Woojin Jo , Hyunseok Hwang
CPC classification number: H03M3/462 , H03M1/0626 , H03M1/123 , H03M3/344 , H03M3/466
Abstract: An analog-to-digital converter includes a modulator, a controller, and a digital filter. The modulator generates a modulated signal based on an analog signal. The controller generates a weight control signal. The digital filter includes a weight signal generator and a first integrator. The weight signal generator generates a weight signal based on the weight control signal. The first integrator generates a digital signal corresponding to the analog signal by integrating the weight signal in response to the modulated signal. The weight control signal corresponds to a type and an order of the digital filter.
Abstract translation: 模数转换器包括调制器，控制器和数字滤波器。 调制器基于模拟信号产生调制信号。 控制器产生加权控制信号。 数字滤波器包括权重信号发生器和第一积分器。 权重信号发生器基于权重控制信号产生加权信号。 第一积分器响应于调制信号对加权信号进行积分而产生对应于模拟信号的数字信号。 权重控制信号对应于数字滤波器的类型和顺序。
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公开(公告)号：US20230216516A1
公开(公告)日：2023-07-06
申请号：US18148510
申请日：2022-12-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Daesik Moon , Youngcheol Chae
CPC classification number: H03M1/147 , H03M1/183 , H03M1/1009
Abstract: An apparatus configured to convert an analog input signal into a digital output signal may include a first amplification circuit configured to receive the analog input signal and a plurality of reference voltages and amplify differences between the analog input signal and the plurality of reference voltages; a plurality of first capacitors configured to respectively store charges corresponding to signals outputted by the first amplification circuit; a second amplification circuit configured to amplify differences among voltages of the plurality of first capacitors; a plurality of second capacitors configured to respectively store charges corresponding to signals outputted by the second amplification circuit; and a comparison circuit configured to generate the digital output signal by comparing voltages of the plurality of second capacitors with each other.
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公开(公告)号：US11499874B2
公开(公告)日：2022-11-15
申请号：US16863216
申请日：2020-04-30
Applicant: Samsung Electronics Co., Ltd. , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
Inventor： Sungsik Park , Youngcheol Chae
Abstract: A temperature sensor configured to generate an output signal corresponding to a sensed and/or measured temperature includes: a diode including a cathode coupled to a ground node; a first capacitor including a first end coupled to the ground node; a switch circuit configured to connect a second end of the first capacitor to a positive voltage node or an anode of the diode according to a control signal; switch control circuitry configured to generate the control signal based on a reference voltage with a voltage of the anode; and an output signal generator configured to generate the output signal corresponding to the sensed temperature based on a frequency of the control signal.
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Patent Agency Ranking
公开(公告)号：US11140346B2
公开(公告)日：2021-10-05
申请号：US15718598
申请日：2017-09-28
Applicant: Samsung Electronics Co., Ltd. , Industry-Academic Cooperation Foundation, Yonsei University
Inventor： Youngcheol Chae , Sang-hyun Cho , Min-ho Kwon , Seung-hyun Lim , Woo-jin Jo
Abstract: An analog-to-digital converter configured to convert an analog signal into a digital signal includes a first converter configured to receive an input signal of an analog type, compare the input signal with a plurality of reference signals, select one of the plurality of reference signals based on the comparison, and output an upper bit that is a portion of the digital signal based on the selected reference signal, a second converter configured to perform an oversampling operation n times based on a residue signal indicating a difference between an upper analog signal corresponding to the upper bit value and the input signal and output an intermediate bit value of the digital signal corresponding to the first to n-th oversampling signals generated respectively during the oversampling operations performed n times, and a third converter configured to output a lower bit value of the digital signal corresponding to the n-th oversampling signal.
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公开(公告)号：US20180109747A1
公开(公告)日：2018-04-19
申请号：US15718598
申请日：2017-09-28
Applicant: Samsung Electronics Co., Ltd. , Industry-Academic Cooperation Foundation, Yonsei University
Inventor： Youngcheol Chae , Sang-hyun Cho , Min-ho Kwon , Seung-hyun Lim , Woo-jin Jo
CPC classification number: H04N5/378 , H03M1/124 , H03M1/162 , H03M1/361 , H03M1/38 , H03M1/56 , H03M3/46 , H03M3/494 , H04N5/37455
Abstract: An analog-to-digital converter configured to convert an analog signal into a digital signal includes a first converter configured to receive an input signal of an analog type, compare the input signal with a plurality of reference signals, select one of the plurality of reference signals based on the comparison, and output an upper bit that is a portion of the digital signal based on the selected reference signal, a second converter configured to perform an oversampling operation n times based on a residue signal indicating a difference between an upper analog signal corresponding to the upper bit value and the input signal and output an intermediate bit value of the digital signal corresponding to the first to n-th oversampling signals generated respectively during the oversampling operations performed n times, and a third converter configured to output a lower bit value of the digital signal corresponding to the n-th oversampling signal.
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公开(公告)号：US12237842B2
公开(公告)日：2025-02-25
申请号：US18148510
申请日：2022-12-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Daesik Moon , Youngcheol Chae
Abstract: An apparatus configured to convert an analog input signal into a digital output signal may include a first amplification circuit configured to receive the analog input signal and a plurality of reference voltages and amplify differences between the analog input signal and the plurality of reference voltages; a plurality of first capacitors configured to respectively store charges corresponding to signals outputted by the first amplification circuit; a second amplification circuit configured to amplify differences among voltages of the plurality of first capacitors; a plurality of second capacitors configured to respectively store charges corresponding to signals outputted by the second amplification circuit; and a comparison circuit configured to generate the digital output signal by comparing voltages of the plurality of second capacitors with each other.
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公开(公告)号：US11489494B2
公开(公告)日：2022-11-01
申请号：US16838100
申请日：2020-04-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yunhong Kim , Youngcheol Chae
Abstract: A dynamic amplifier includes an amplifier configured to differentially amplify first and second input signals to generate first and second output signals, a bias circuit, and a variable impedance circuit. The bias circuit is connected between a first power node configured to supply a first source voltage and the amplifier, and configured to apply bias to the amplifier. The variable impedance circuit is connected between the amplifier and a second power node configured to supply a second source voltage that is lower than the first source voltage. The variable impedance circuit is configured to adjust amplification gain of the amplifier, by adjusting impedance based on a magnitude of one among the first and second input signals and the first and second output signals.
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公开(公告)号：US20150311912A1
公开(公告)日：2015-10-29
申请号：US14692787
申请日：2015-04-22
Applicant: Samsung Electronics Co., Ltd. , Industry-Academic Cooperation Foundation, Yonsei University
Inventor： Jae-Hong Kim , Youngcheol Chae , Seungwoo Song , Woojin Jo , Hyunseok Hwang
CPC classification number: H03M3/462 , H03M1/0626 , H03M1/123 , H03M3/344 , H03M3/466
Abstract: An analog-to-digital converter includes a modulator, a controller, and a digital filter. The modulator generates a modulated signal based on an analog signal. The controller generates a weight control signal. The digital filter includes a weight signal generator and a first integrator. The weight signal generator generates a weight signal based on the weight control signal. The first integrator generates a digital signal corresponding to the analog signal by integrating the weight signal in response to the modulated signal. The weight control signal corresponds to a type and an order of the digital filter.
Abstract translation: 模数转换器包括调制器，控制器和数字滤波器。 调制器基于模拟信号产生调制信号。 控制器产生加权控制信号。 数字滤波器包括权重信号发生器和第一积分器。 权重信号发生器基于权重控制信号产生加权信号。 第一积分器响应于调制信号对加权信号进行积分而产生对应于模拟信号的数字信号。 权重控制信号对应于数字滤波器的类型和顺序。
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