Patents by Inventor Seok Ju Yun
Seok Ju Yun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200212961Abstract: Disclosed is a near-field communication (NFC) system that includes an NFC supporting apparatus. The NFC supporting apparatus includes a dual coil and a first switch. The dual coil includes an NFC band coil and a radio frequency (RF) band coil. An RF amplitude modulation signal is generated at the RF band coil in response to a transmission from an implantable device. The first switch is configured to switch the NFC band coil based on the RF amplitude modulation signal. The NFC band coil is configured to generate an NFC amplitude modulation signal at an NFC band coil of an NFC reader in response to the first switch.Type: ApplicationFiled: June 5, 2019Publication date: July 2, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Wonseok LEE, Seok Ju YUN, Sang Joon KIM, Jaechun LEE
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Publication number: 20200136676Abstract: A wireless communication apparatus may include: an oscillator including a coil assembly exposed to an outside of the wireless communication apparatus, a variable capacitor, and a negative resistor; and a phase locking circuit connected to the coil assembly and the negative resistor. The phase locking circuit may be configured to generate a control signal to lock an oscillation frequency of the oscillator based on an oscillation signal generated by the oscillator, and provide the generated control signal to the variable capacitor.Type: ApplicationFiled: September 11, 2019Publication date: April 30, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Seok Ju YUN, Sang Joon KIM, Joonseong KANG
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Patent number: 10554457Abstract: A receiver includes an antenna configured to receive a radio signal, a pulse generator configured to generate a pulse, an oscillator configured to be driven based on the pulse to generate an oscillation signal based on the radio signal, and a measurer configured to be driven by the pulse to measure an oscillation degree of the oscillation signal, wherein the radio signal is received based on the oscillation degree of the oscillation signal.Type: GrantFiled: August 8, 2018Date of Patent: February 4, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Seok Ju Yun, Sang Joon Kim
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Patent number: 10491158Abstract: A wireless communication apparatus includes an oscillator circuit configured to generate an oscillation signal corresponding to an oscillation frequency determined by an antenna, and a bias generator circuit configured to reconfigure an operation region mode of a transistor included in the oscillator circuit by adjusting a bias signal in response to an enable signal.Type: GrantFiled: December 12, 2017Date of Patent: November 26, 2019Assignee: Samsung Electronics Co., Ltd.Inventor: Seok Ju Yun
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Patent number: 10484037Abstract: A radio frequency (RF) transceiver includes a first oscillator configured to generate a first oscillation frequency associated with an RF signal, a second oscillator configured to generate a second oscillation frequency associated with a clock frequency, a counter configured to generate a counter output signal using the first oscillation frequency and the second oscillation frequency, and a comparer configured to generate a digital output signal associated with the RF signal by comparing an output value of the counter output signal to a reference value.Type: GrantFiled: July 11, 2018Date of Patent: November 19, 2019Assignee: Samsung Electronics Co., Ltd.Inventor: Seok Ju Yun
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Patent number: 10425039Abstract: A frequency calibrator includes an input signal generator configured to generate an input signal based on an oscillation signal and an external signal; a frequency difference extractor configured to extract, from the input signal, a frequency difference signal having a frequency corresponding to a frequency difference between an external frequency of the external signal and an oscillation frequency of the oscillation signal; a divider configured to generate a division signal by dividing a signal having the oscillation frequency by a division ratio; and a frequency tuner configured to tune the oscillation frequency of the oscillation signal based on a result of comparing the frequency difference signal to the division signal.Type: GrantFiled: July 31, 2017Date of Patent: September 24, 2019Assignee: Samsung Electronics Co., Ltd.Inventor: Seok Ju Yun
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Patent number: 10284243Abstract: A frequency tuning apparatus includes: a frequency tuner configured to tune an oscillation frequency of an oscillator based on target information extracted from a mapping table in correspondence to a target frequency, and oscillation information collected from the oscillator; and a frequency compensator configured to compensate for a compensation error between the tuned oscillation frequency and the target frequency based on an offset table.Type: GrantFiled: March 27, 2018Date of Patent: May 7, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: SeongJoong Kim, Joonseong Kang, Seok Ju Yun, Young Jun Hong
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Publication number: 20190052492Abstract: A receiver includes an antenna configured to receive a radio signal, a pulse generator configured to generate a pulse, an oscillator configured to be driven based on the pulse to generate an oscillation signal based on the radio signal, and a measurer configured to be driven by the pulse to measure an oscillation degree of the oscillation signal, wherein the radio signal is received based on the oscillation degree of the oscillation signal.Type: ApplicationFiled: August 8, 2018Publication date: February 14, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Seok Ju YUN, Sang Joon KIM
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Publication number: 20180323819Abstract: A radio frequency (RF) transceiver includes a first oscillator configured to generate a first oscillation frequency associated with an RF signal, a second oscillator configured to generate a second oscillation frequency associated with a clock frequency, a counter configured to generate a counter output signal using the first oscillation frequency and the second oscillation frequency, and a comparer configured to generate a digital output signal associated with the RF signal by comparing an output value of the counter output signal to a reference value.Type: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Applicant: Samsung Electronics Co., Ltd.Inventor: Seok Ju YUN
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Publication number: 20180309406Abstract: A wireless communication apparatus includes an oscillator circuit configured to generate an oscillation signal corresponding to an oscillation frequency determined by an antenna, and a bias generator circuit configured to reconfigure an operation region mode of a transistor included in the oscillator circuit by adjusting a bias signal in response to an enable signal.Type: ApplicationFiled: December 12, 2017Publication date: October 25, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Seok Ju YUN
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Patent number: 10079581Abstract: A receiver includes a low noise amplifier (LNA) configured to amplify an input RF signal using a first current supplied by a first current source, and a voltage controlled oscillator (VCO) for applying an oscillation frequency to the amplified signal by generating an oscillation signal using the first current.Type: GrantFiled: May 24, 2016Date of Patent: September 18, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Seok Ju Yun, Seongjoong Kim, Yongkyu Kim, Young Jun Hong
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Publication number: 20180219569Abstract: A frequency tuning apparatus includes: a frequency tuner configured to tune an oscillation frequency of an oscillator based on target information extracted from a mapping table in correspondence to a target frequency, and oscillation information collected from the oscillator; and a frequency compensator configured to compensate for a compensation error between the tuned oscillation frequency and the target frequency based on an offset table.Type: ApplicationFiled: March 27, 2018Publication date: August 2, 2018Applicant: Samsung Electronics Co., Ltd.Inventors: SeongJoong KIM, Joonseong KANG, Seok Ju YUN, Young Jun HONG
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Patent number: 10027365Abstract: A radio frequency (RF) transceiver includes a first oscillator configured to generate a first oscillation frequency associated with an RF signal, a second oscillator configured to generate a second oscillation frequency associated with a clock frequency, a counter configured to generate a counter output signal using the first oscillation frequency and the second oscillation frequency, and a comparer configured to generate a digital output signal associated with the RF signal by comparing an output value of the counter output signal to a reference value.Type: GrantFiled: March 30, 2017Date of Patent: July 17, 2018Assignee: Samsung Electronics Co., Ltd.Inventor: Seok Ju Yun
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Patent number: 9960798Abstract: A frequency tuning apparatus includes: a frequency tuner configured to tune an oscillation frequency of an oscillator based on target information extracted from a mapping table in correspondence to a target frequency, and oscillation information collected from the oscillator; and a frequency compensator configured to compensate for a compensation error between the tuned oscillation frequency and the target frequency based on an offset table.Type: GrantFiled: July 20, 2016Date of Patent: May 1, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: SeongJoong Kim, Joonseong Kang, Seok Ju Yun, Young Jun Hong
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Patent number: 9955441Abstract: Provided is a receiver configured to perform automatic gain control (AGC), the receiver including a first variable gain amplifier configured to amplify, according to a first variable gain, a signal of a first frequency band, a second variable gain amplifier configured to amplify, according to a second variable gain, a signal of a second frequency band generated by frequency converting the amplified signal of the first frequency band, and an AGC circuit configured to control a total gain by controlling a gain ratio between the first variable gain and the second variable gain to be within a set target range by adjusting at least one of the first variable gain and the second variable gain.Type: GrantFiled: March 2, 2016Date of Patent: April 24, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Seok-Ju Yun, Joonseong Kang, Young-Jun Hong
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Publication number: 20180048263Abstract: A frequency calibrator includes an input signal generator configured to generate an input signal based on an oscillation signal and an external signal; a frequency difference extractor configured to extract, from the input signal, a frequency difference signal having a frequency corresponding to a frequency difference between an external frequency of the external signal and an oscillation frequency of the oscillation signal; a divider configured to generate a division signal by dividing a signal having the oscillation frequency by a division ratio; and a frequency tuner configured to tune the oscillation frequency of the oscillation signal based on a result of comparing the frequency difference signal to the division signal.Type: ApplicationFiled: July 31, 2017Publication date: February 15, 2018Applicant: Samsung Electronics Co., Ltd.Inventor: Seok Ju YUN
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Publication number: 20180019782Abstract: A radio frequency (RF) transceiver includes a first oscillator configured to generate a first oscillation frequency associated with an RF signal, a second oscillator configured to generate a second oscillation frequency associated with a clock frequency, a counter configured to generate a counter output signal using the first oscillation frequency and the second oscillation frequency, and a comparer configured to generate a digital output signal associated with the RF signal by comparing an output value of the counter output signal to a reference value.Type: ApplicationFiled: March 30, 2017Publication date: January 18, 2018Applicant: Samsung Electronics Co., Ltd.Inventor: Seok Ju YUN
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Patent number: 9871681Abstract: An on-off keying (OOK) transmitter and communication method are provided. The OOK transmitter may include a data encoder configured to encode input data into a transmission sequence, a pulse shaper configured to generate pulses based on the transmission sequence, a bi-phase controller configured to generate a control signal to control a random change in phase, between two phases, of a carrier based on the transmission sequence, a bi-phased switch configured to randomly change a phase of the carrier generated by a voltage-controlled oscillator (VCO), based on the control signal, and a power amplifier (PA) configured to generate a transmission signal based on the generated pulses and the carrier with the randomly changed phase. The PA may be a bi-phasing PA, and the bi-phased switch may be included in the bi-phasing PA.Type: GrantFiled: January 23, 2017Date of Patent: January 16, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Seongjoong Kim, Yongkyu Kim, Chang-soon Park, Young-jun Hong, Seok-ju Yun
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Patent number: 9800279Abstract: Examples provide a method of performing automatic gain control (AGC) in a wireless receiver, the method including computing, by an energy detection (ED) circuit, a variance in an output signal of an analog-to-digital converter (ADC), and activating, by the ED circuit, an AGC circuit to adjust a gain of at least one component in a radio frequency integrated chip (RFIC) in response to the variance exceeding a threshold. Examples also provide for a wireless receiver that implements such a method.Type: GrantFiled: February 16, 2016Date of Patent: October 24, 2017Assignee: Samsung ELectronics Co., Ltd.Inventors: Ashutosh Deepak Gore, Jinesh P. Nair, Chang Soon Park, Kiran Bynam, Seok Ju Yun, Young Jun Hong
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Patent number: 9762275Abstract: A super-regenerative receiver (SRR) circuit includes an amplifier configured to amplify an input injection signal and output the amplified injection signal to an oscillator; and a feed-forwarding unit configured to feed-forward, to the oscillator, a filtered signal obtained by filtering the injection signal after converting a frequency of the injection signal to another frequency; wherein the oscillator is configured to receive an input of a signal in which the filtered signal is applied to the injection signal.Type: GrantFiled: March 27, 2014Date of Patent: September 12, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Seok Ju Yun, Seong Joong Kim, Jae Sup Lee