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公开(公告)号：US11372623B2
公开(公告)日：2022-06-28
申请号：US16843466
申请日：2020-04-08
Inventor： Kyung Hwan Park , Seong Mo Park , Byounggun Choi , Sung Weon Kang , Tae Wook Kang , Jae-Jin Lee , In Gi Lim
IPC: G06F7/58
Abstract: A random number generating device includes a particle detector, a pulse generator, a clock counter, and a random number converter. The particle detector detects particles emitted from a radioactive isotope. The pulse generator generates pulses corresponding to the particles. The clock counter counts the number of clock cycles during time intervals between the pulses and generates a plurality of count values. The random number converter adjusts a clock frequency, based on a minimum value and a maximum value of the plurality of count values and converts a target count value generated depending on the adjusted clock frequency into a random number.
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Patent Agency Ranking
公开(公告)号：US11233583B2
公开(公告)日：2022-01-25
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：US10033491B2
公开(公告)日：2018-07-24
申请号：US15349214
申请日：2016-11-11
Inventor： Tae Wook Kang , Sung Weon Kang , Hyung-Il Park , Sung Eun Kim , Jung Bum Kim , Kyung Hwan Park , Kwang Il Oh , In Gi Lim , Byounggun Choi
Abstract: Provided is a method for generating a preamble of a transmission signal for human body communication, the method including using a frequency shift code (FSC) of which a length is adjusted according to an operating clock frequency or a transmission rate and a first pseudo random binary sequence (PRBS) code of p chips where p is a natural number to generate a first preamble unit block of n chips where n is a natural number, using the FSC and a second PRBS code of p′ chips to generate a second preamble unit block of n′ chips, and arraying the first preamble unit block consecutively and repeatedly and disposing the second preamble unit block at a next stage to form the preamble of the transmission signal.
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公开(公告)号：US20140332812A1
公开(公告)日：2014-11-13
申请号：US14189945
申请日：2014-02-25
Inventor： Tae Young Kang , Byounggun Choi , Kyung Hwan Park
IPC: H01L21/66
CPC classification number: G01R31/3025 , H01L22/32 , H01L2223/6677
Abstract: A wafer is provided. The wafer includes at least one field. The field includes at least one chip, and at least one test chip that generates power using a wireless signal, that provides power to the chip, that tests performance of the chip, and that corrects performance of the chip according to a test result.
Abstract translation: 提供晶片。 晶片包括至少一个场。 该领域包括至少一个芯片，以及至少一个使用无线信号产生功率的测试芯片，其向芯片提供功率，测试芯片的性能，并根据测试结果来校正芯片的性能。
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公开(公告)号：US12107555B2
公开(公告)日：2024-10-01
申请号：US17317483
申请日：2021-05-11
Inventor： Min Park , Jang Hong Choi , Bon Tae Koo , Kisu Kim , Kyung Hwan Park
CPC classification number: H03F3/245 , H03F3/2171 , H03G3/3042 , H03F2200/451
Abstract: Provided is a drive amplifier. A drive amplifier may include: a main circuit configured to receive an RF input signal and output a first RF output signal; and a selective bias adjustment circuit comprising a first common gate transistor to which a first common gate bias voltage is applied and a second common gate transistor to which a second common gate bias voltage is applied, and configured to output a second RF output signal using the first common gate transistor and the second common gate transistor.
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公开(公告)号：US12044813B2
公开(公告)日：2024-07-23
申请号：US17362267
申请日：2021-06-29
Applicant: CHANGWON NATIONAL UNIVERSITY Industry Academy Cooperation Corps , Electronics and Telecommunications Research Institute
Inventor： Young Hee Kim , Hong Zhou Jin , Kyung Hwan Park
Abstract: Disclosed are a charge sensitive amplifier capable of minimizing a variation in a signal voltage of an output signal by applying a bias direct current to a gate of a feedback transistor, and a radiation sensor including the same. According to the charge sensitive amplifier and the radiation sensor including the same, it is possible to minimize a variation in a signal voltage of a charge sensitive amplifier output signal by applying a current, which is formed by mirroring a current bias circuit designed to be insensitive to PVT variations, to a gate of a feedback transistor. Furthermore, it is possible to reduce a variation in charging time and enable high-speed sensing by charging the signal voltage to the level of a common voltage VCOM by using a constant current supplied through a bandgap reference (BGR) circuit.
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