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公开(公告)号：US20220109808A1
公开(公告)日：2022-04-07
申请号：US17399603
申请日：2021-08-11
Inventor： Sukho LEE , Sang Pil KIM , Young Hwan BAE , Jae-Jin LEE , Kyuseung HAN , Tae Wook KANG , Sung Eun KIM , Hyuk KIM , Kyung Hwan PARK , Hyung-IL PARK , Kyung Jin BYUN , Kwang IL OH , In Gi LIM
Abstract: Disclosed is a network-on-chip including a first data converter that receives first image data and second image data from at least one image sensor and encodes one image data among the first image data and the second image data, into first data, based on whether the first image data is identical to the second image data and a second data converter that receives non-image data from at least one non-image sensor and encodes the received non-image data into second data. The network-on-chip outputs the first data and the second data to transmit the first data and the second data to an external server at a burst length.
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公开(公告)号：US20210383192A1
公开(公告)日：2021-12-09
申请号：US17308723
申请日：2021-05-05
Inventor： Kwang IL OH , Tae Wook KANG
Abstract: Disclosed is a data processing device of a spike neural network. The data processing device according to the present disclosure includes an input terminal that receives time series data, a processor that differentiates the input time series data, determines a point at which a differential value of the time series data is “0”, and generates an output in a discrete form, based on the determination result, and an output terminal that generates a spike train signal, based on the output and outputs the generated spike train signal to external axons.
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公开(公告)号：US20190311244A1
公开(公告)日：2019-10-10
申请号：US16377983
申请日：2019-04-08
Inventor： Kwang IL OH , Byounggun CHOI , Tae Wook KANG , Sung Eun KIM , Seong Mo PARK , Jae-Jin LEE
Abstract: Provided is a spike neural network circuit. The spike neural network circuit includes an axon configured to generate an input spike signal, a synapse including a first transistor for outputting a current according to a weight and a second transistor connected to the first transistor and outputting the current according to an input spike signal, a neuron configured to compare a value according to the current output from the synapse with a reference value and generate an output spike signal based on a comparison result, and a radiation source attached to a substrate on which the synapse is formed, configured to output radiation particles to the synapse, and configured to increase magnitudes of threshold voltages of the first and second transistors of the synapse.
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公开(公告)号：US20190213472A1
公开(公告)日：2019-07-11
申请号：US16134935
申请日：2018-09-18
Inventor： Seong Mo PARK , Sung Eun KIM , Kwang IL OH
CPC classification number: G06N3/0635 , G06N3/049 , G06N3/088
Abstract: Provided is a neuromorphic system including a memory configured to store a plurality of weights, a potentiation unit configured to receive an input signal, generate a positive voltage on a basis of a first weight corresponding to the input signal among the plurality of weights, and accumulate the generated positive voltage to output a potentiation unit voltage, a depression unit configured to receive the input signal, generate a negative voltage on a basis of the first weight, and accumulate the generated negative voltage to output a depression unit voltage, and a firing unit configured to combine the potentiation unit voltage and the depression unit voltage to generate an internal voltage, and fire on a basis of a comparison result of the internal voltage and a threshold value.
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15.发明公开公开(公告)号：US20230214467A1
公开(公告)日：2023-07-06
申请号：US17984398
申请日：2022-11-10
Inventor： Kwang IL OH , Tae Wook KANG , Seong-Eun KIM , Jae-Jin LEE
IPC: G06F21/32
CPC classification number: G06F21/32
Abstract: Disclosed are a biometric authentication device and a fingerprint authentication device including the same. The biometric authentication device includes a clock generator that generates a clock signal, an authentication signal generator that generates an authentication signal based on the clock signal, a transmission electrode that transmits the authentication signal to a contact body, a reception electrode that receives a channel pass signal in which the authentication signal passes through a channel of the contact body, and a biometric authenticator that restores the channel pass signal and compares the restored channel pass signal with the authentication signal to generate a biometric authentication signal indicating whether the contact body is a biological tissue. According to the present disclosure, it is possible to improve the security of a fingerprint authentication device.
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Patent Agency Ranking
公开(公告)号：US20220405548A1
公开(公告)日：2022-12-22
申请号：US17834484
申请日：2022-06-07
Inventor： Kwang IL OH , Tae Wook KANG , Hyuk KIM , Jae-Jin LEE
Abstract: Disclosed is a synaptic circuit including a weight memory that stores a weight value, a current-mode digital-to-analog converter (C-DAC) circuit that receives the weight value from the weight memory and supplies a current based on the weight value, a parasitic capacitor correction circuit that receives the weight value from the weight memory and to correct a value of parasitic capacitance generated by the C-DAC circuit based on the weight value, and a pre-discharge circuit that drains charges accumulated by the parasitic capacitance.
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公开(公告)号：US20220391669A1
公开(公告)日：2022-12-08
申请号：US17829021
申请日：2022-05-31
Inventor： Kwang IL OH , Tae Wook KANG , Sung Eun KIM , Hyuk KIM , Jae-Jin LEE
Abstract: Disclosed is an SNN circuit including a spike generator that receives an input spike signal and converts the input spike signal into a sub-spike signal and a main spike signal, a synaptic circuit that generates an operation signal based on a weight and outputs the operation signal in response to the main spike signal, a membrane capacitor that accumulates the operation signal, and a potential correction circuit that corrects an output terminal voltage of the synaptic circuit based on a voltage of the membrane capacitor.
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公开(公告)号：US20220156590A1
公开(公告)日：2022-05-19
申请号：US17459950
申请日：2021-08-27
Inventor： Sung Eun KIM , Tae Wook KANG , Hyuk KIM , Kwang IL OH
Abstract: Disclosed is a method for learning an artificial neural network in a synapse of an artificial intelligence system including generating, by an input neuron of the artificial intelligence system, a first input signal, generating, by the input neuron, a second input signal after a predetermined time, generating, by an output neuron of the artificial intelligence system, an output signal in response to the first input signal and the second input signal that are generated by the input neuron, and adjusting, by the synapse of the artificial intelligence system, connection strength of the artificial neural network based on a temporal order of the first input signal and the second input signal that are generated by the input neuron.
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公开(公告)号：US20210126716A1
公开(公告)日：2021-04-29
申请号：US17020400
申请日：2020-09-14
Inventor： Sung Eun KIM , Tae Wook KANG , Hyuk KIM , Kwang IL OH , Kyung Hwan PARK , Mi Jeong PARK , Hyung-IL PARK , Kyung Jin BYUN , Jae-Jin LEE , In Gi LIM
Abstract: A human body communication device includes an electrode, a matching circuit, a switch providing a first path electrically connected to the matching circuit and a second path electrically connected to the matching circuit, a sensor, in a first state, connected to the matching circuit through the switch, outputting a first sensing signal to the matching circuit, and outputting a second sensing signal when a difference between a signal generated from the matching circuit in response to the first sensing signal and the first sensing signal is greater than or equal to a threshold, a transmitter, in a second state, connected to the matching circuit through the switch, and outputting a data signal to the matching circuit, and a controller controlling the switch from the first state to the second state in response to receiving the second sensing signal from the sensor, in the first state.
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公开(公告)号：US20200295848A1
公开(公告)日：2020-09-17
申请号：US16816109
申请日：2020-03-11
Inventor： Tae Wook KANG , Sung Eun KIM , Kwang IL OH , Hyuk KIM , Mi Jeong PARK , Hyung-IL PARK , Kyung Jin BYUN , Jae-Jin LEE , In Gi LIM
Abstract: Provided are a human body communication device and an operating method of the same. The human body communication device according to an embodiment of the inventive concept includes a first electrode, a second electrode, a transmitting circuit, a receiving circuit, a ground electrode, and a switch. The transmitting circuit generates a first signal in a transmitting mode and transmits the first signal to the first electrode. The receiving circuit receives a second signal from the first electrode in the receiving mode. The receiving circuit includes a differential amplifier that amplifies a difference between a voltage level of a first input terminal depending on the second signal and a voltage level of a second input terminal. The switch electrically connects the second electrode and the ground electrode in the transmitting mode, and electrically connects the second electrode and the second input terminal in the receiving mode.
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