-
1.发明授权公开(公告)号：US11244139B2
公开(公告)日：2022-02-08
申请号：US16534574
申请日：2019-08-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yong Il Kwon , Min Gyu Kim , Sun Kwon Kim , Seong Il Park , Jong Sung Lee , Hee Bum Lee
Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.
-
Patent Agency Ranking
公开(公告)号：US09891761B2
公开(公告)日：2018-02-13
申请号：US14206293
申请日：2014-03-12
Applicant: Samsung Electronics Co., Ltd.
Inventor： Byeoung Hak Jo , Moon Suk Jeong , Yong Il Kwon , Tah Joon Park
CPC classification number: G06F3/044 , G06F3/0416 , G06F2203/04111
Abstract: There are provided a touch sensing device and a touchscreen device. The touch sensing device includes: a driving circuit applying a driving signal having a predetermined first period to a node capacitor; a buffer circuit converting capacitance of the node capacitor into a voltage signal; a buffer capacitor being charged and discharged depending on an output voltage from the buffer circuit; and an integration circuit integrating voltages charged in the buffer capacitor, wherein, in a normal touch mode, the buffer circuit integrates capacitance of the node capacitor to generate the voltage signal, and, in a proximity touch mode, the buffer circuit generates the voltage signal by following the voltages charged in the node capacitor.
-
公开(公告)号：US10028375B2
公开(公告)日：2018-07-17
申请号：US15177805
申请日：2016-06-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yong Il Kwon , Tah Joon Park , Joon Seok Chae , Jong Woo Choi
Abstract: A fingerprint sensing device includes a board having a sensor array, a sub-board disposed on a bottom surface of the board, a circuit element disposed on the bottom surface of the board, and a through hole disposed through the sub-board, wherein the circuit element is further disposed in the through hole. A thickness of the sub-board is substantially similar to a thickness of the circuit element.
-
公开(公告)号：US10083287B2
公开(公告)日：2018-09-25
申请号：US15132346
申请日：2016-04-19
Applicant: Samsung Electronics Co., Ltd
Inventor： Tae Hyeon Kwon , Kang Joo Kim , Yong Il Kwon
CPC classification number: G06F21/32 , G06F1/1684 , G06F1/3215 , G06F1/3262 , G06F3/03547 , G06F3/0416 , G06F21/83 , G06F2203/0338 , G06K9/0002 , G06K9/0008 , G06K9/036
Abstract: A fingerprint sensing device includes a sensing circuit configured to extract sensing data from nodes included in each of sampling regions of a sensor array. The fingerprint sensing device also includes a control circuit configured to calculate a number of the nodes based on the extracted sensing data to produce sensing data distributions for each of the sampling regions and compare the sensing data distributions with reference distributions, configured to determine that the sampling regions from which the sensing data distributions corresponding to the reference distributions are extracted are effective contact regions, and configured to generate fingerprint information from the sensor array when the number of effective contact regions is greater than or equal to a threshold.
-
公开(公告)号：US09851833B2
公开(公告)日：2017-12-26
申请号：US14481018
申请日：2014-09-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yong Il Kwon , Byeong Hak Jo , Moon Suk Jeong , Tah Joon Park
CPC classification number: G06F3/0416 , G06F1/3262 , G06F3/044 , G06G7/186 , Y02D50/20
Abstract: An integration circuit may include a plurality of switches, at least one operational amplifier, and at least one feedback capacitor, sequentially transfers electrical charges charged in a node capacitor to the feedback capacitor, and integrates the electrical charges. The operational amplifier may be synchronized with a clock signal applied to at least one of the plurality of switches to thereby be operated in one of a normal mode and a low power mode.
-
6.发明申请公开(公告)号：US20200218870A1
公开(公告)日：2020-07-09
申请号：US16534574
申请日：2019-08-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yong Il Kwon , Min Gyu Kim , Sun Kwon Kim , Seong Il Park , Jong Sung Lee , Hee Bum Lee
Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.
-
-
-
-
-
Search Results
6
records
(took 0.015 seconds)
