Patents by Inventor Jae Hyouck Choi
Jae Hyouck Choi 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: 20130129163Abstract: There are a fingerprint sensor and a method of operating the same. The fingerprint sensor includes: a fingerprint sensing unit sensing a fingerprint coming into contact with one surface of a substrate; a light source provided at a first end of the substrate; and a light detection unit provided at a second end of the substrate and detecting light emitted from the light source, wherein the first and second ends correspond to both ends of the one surface of the substrate with which the fingerprint comes into contact, respectively, and bio-information of an object coming into contact with the one surface of the substrate is determined by using light detected by the light detection unit.Type: ApplicationFiled: January 26, 2012Publication date: May 23, 2013Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Il Kwon CHUNG, Seung Seoup LEE, Jae Hyouck CHOI, Jun Kyung NA
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Publication number: 20130072187Abstract: There are provided a dual mode communications device and a method of improving a data rate thereof. The dual mode communications device according to the embodiment of the present invention may include a selection unit 100 connecting antenna terminals to receive terminals or transmit terminals, a receive path circuit unit allowing RF receive signals from each of the first and second antennas to pass therethrough, a transmit path circuit unit providing RF transmit signals to the transmit terminals of the selection unit, an RF circuit unit converting the RF receive signals from the receive path circuit unit into baseband signals and converting the baseband signals to be transmitted into the RF transmit signals, and a baseband circuit unit performing control and signal processing of the selection unit in a single communications mode among a dual mode and a single mode.Type: ApplicationFiled: December 20, 2011Publication date: March 21, 2013Inventors: Chul Hwan YOON, Seong Geun Kim, Youn Suk Kim, Sung Jae Yoon, Jae Hyouck Choi, Dae Seok Jang, Sang Wook Park
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Publication number: 20120249262Abstract: There are provided a power combiner implemented by a printed circuit board, a power amplifying module having the same, and a signal transceiving module.Type: ApplicationFiled: August 29, 2011Publication date: October 4, 2012Inventors: Ki Joong Kim, Youn Suk Kim, Jun Goo Won, Jae Hyouck Choi, Sang Wook Park, Chul Hwan Yoon
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Patent number: 8242846Abstract: There is provided a power amplifier capable of improving harmonics characteristics of an output signal of an amplifier circuit by compensating a phase of the output signal. A power amplifier according to an aspect of the invention may include: an amplification section having a plurality of amplification units each amplifying a radio frequency (RF) signal according to a gain being controlled; a phase correction section performing phase correction by removing harmonic components of respective output signals from the plurality of amplification units of the amplification section; and a coupling section coupling the respective output signals phase-corrected by the phase correction section.Type: GrantFiled: January 24, 2011Date of Patent: August 14, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ki Joong Kim, Youn Suk Kim, Young Jean Song, Jae Hyouck Choi, Jun Goo Won
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Patent number: 8183919Abstract: A power amplifier includes an inverter amplification section configured to amplify AC components and remove DC components from at least one input signal, an impedance matching section configured to match an impedance of a transmission path of the at least one input signal amplified by the inverter amplification section, and an amplification section configured to amplify an impedance-matched signal from the impedance matching section according to a predetermined gain. The inverter amplification section includes at least one P-channel metal-oxide semiconductor field effect transistor (MOS FET) having a gate configured to receive the at least one input signal and at least one N-channel MOS FET having a gate configured to receive the at least one input signal. The at least one P-channel MOS FET and the at least one N-channel MOS FET are serially connected.Type: GrantFiled: June 25, 2010Date of Patent: May 22, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Young Jean Song, Shinichi Iizuka, Youn Suk Kim, Hyo Kun Bae, Sang Hee Kim, Jun Goo Won, Joong Jin Nam, Ki Joong Kim, Jae Hyouck Choi
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Publication number: 20120038420Abstract: There is provided a communications circuit for reducing crosstalk.Type: ApplicationFiled: July 7, 2011Publication date: February 16, 2012Inventors: Jun Goo WON, Youn Suk KIM, Ki Joong KIM, Jae Hyouck CHOI, Young Jean SONG
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Patent number: 8098095Abstract: Disclosed herein is a power amplifier. The power amplifier includes N power amplification means, a transformer, and a harmonic elimination unit. Each of the N power amplification means amplifies an input signal into a predetermined level. The transformer includes N/2 primary windings respectively connected to the output terminals of the power amplification means and a secondary winding configured such that coil elements are connected in series between an output terminal and a ground, and sums power transmitted from the primary windings. The harmonic elimination unit is disposed across both ends of the secondary winding of the transformer, and eliminates the output of the harmonic frequencies of a preset frequency.Type: GrantFiled: April 29, 2010Date of Patent: January 17, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Joong Jin Nam, Youn Suk Kim, Hyo Gun Bae, Jae Hyouck Choi, Jun Goo Won, Young Jean Song, Ki Joong Kim, Sang Hee Kim
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Publication number: 20110215865Abstract: Disclosed herein is a power amplifier. The power amplifier includes N power amplification means, a transformer, and a harmonic elimination unit. Each of the N power amplification means amplifies an input signal into a predetermined level. The transformer includes N/2 primary windings respectively connected to the output terminals of the power amplification means and a secondary winding configured such that coil elements are connected in series between an output terminal and a ground, and sums power transmitted from the primary windings. The harmonic elimination unit is disposed across both ends of the secondary winding of the transformer, and eliminates the output of the harmonic frequencies of a preset frequency.Type: ApplicationFiled: April 29, 2010Publication date: September 8, 2011Inventors: Joong Jin NAM, Youn Suk Kim, Hyo Gun Bae, Jae Hyouck Choi, Jun Goo Won, Young Jean Song, Ki Joong Kim, Sang Hee Kim
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Publication number: 20110215981Abstract: There is provided a high frequency transmission module, including: a high band power amplifier amplifying power of a preset high band frequency signal; a low band power amplifier amplifying power of a preset low band frequency signal; an LC matching circuit unit matching output impedance of the low band power amplifier to impedance of an antenna switch circuit; the antenna switch circuit connecting one of a first terminal connected to an output terminal of the high band power amplifier and a second terminal connected to the LC matching circuit unit to a common terminal; and a matching/ESD protecting unit matching impedances between the antenna switch circuit and an antenna and blocking static electricity introduced from the antenna.Type: ApplicationFiled: February 28, 2011Publication date: September 8, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Hee KIM, Seong Geun KIM, Jae Hyouck CHOI, Sang Wook PARK, Youn Suk KIM, Chul Hwan YOON
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Patent number: 8008974Abstract: A power amplifier system with power control function provides accurate and efficient power control by controlling a bias voltage and a bias current of the power amplifier at the same time.Type: GrantFiled: November 13, 2009Date of Patent: August 30, 2011Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Sang Hoon Ha, Sang Hee Kim, Joong Jin Nam, Ki Joong Kim, Jae Hyouck Choi, Shinichi Ilzuka, Youn Suk Kim
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Publication number: 20110187458Abstract: There is provided a power amplifier capable of improving harmonics characteristics of an output signal of an amplifier circuit by compensating a phase of the output signal. A power amplifier according to an aspect of the invention may include: an amplification section having a plurality of amplification units each amplifying a radio frequency (RF) signal according to a gain being controlled; a phase correction section performing phase correction by removing harmonic components of respective output signals from the plurality of amplification units of the amplification section; and a coupling section coupling the respective output signals phase-corrected by the phase correction section.Type: ApplicationFiled: January 24, 2011Publication date: August 4, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ki Joong KIM, Youn Suk KIM, Young Jean SONG, Jae Hyouck CHOI, Jun Goo WON
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Publication number: 20110156203Abstract: There is provided an integrated passive device assembly. An integrated passive device assembly according to an aspect of the invention may include: a board having a wiring pattern provided thereon; an integrated passive device mounted on an upper surface of the board and having conductive patterns provided on upper and lower surfaces thereof; a first connection portion electrically connecting the conductive pattern, provided on the upper surface of the integrated passive device, and the wiring pattern to each other; and a second connection portion electrically connecting the conductive pattern, provided on the lower surface of the integrated passive device, and the wiring pattern to each other.Type: ApplicationFiled: June 25, 2010Publication date: June 30, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Wook PARK, Chul Hwan YOON, Youn Suk KIM, Seong Geun KIM, Sang Hee KIM, Jae Hyouck CHOI, Jun Kyung NA
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Publication number: 20110127636Abstract: There is provided an integrated passive device assembly including: a substrate having a wiring pattern disposed therein; a mounting part disposed on an upper surface of the substrate, formed of an insulating material, and having an integrated passive device mounted on an upper surface thereof; a conductive pattern disposed inside the mounting part; and a connecting part disposed on the substrate and electrically connected to the integrated passive device. The connecting part and the conductive pattern are electrically connected to the wiring pattern.Type: ApplicationFiled: August 5, 2010Publication date: June 2, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Wook PARK, Chul Hwan YOON, Youn Suk KIM, Seong Geun KIM, Sang Hee KIM, Jae Hyouck CHOI
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Publication number: 20110121903Abstract: There is provided a power amplifier that can increase power efficiency by preventing power consumption caused by DC components from an RF input signal. A power amplifier according to an aspect of the invention may include: an inverter amplification section amplifying an input signal according to an inverter method to thereby remove DC components from the input signal; an impedance matching section matching an impedance of a transmission path of the input signal amplified by the inverter amplification section; and an amplification section amplifying an impedance-matched signal from the impedance matching section according to a gain set beforehand.Type: ApplicationFiled: June 25, 2010Publication date: May 26, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Young Jean SONG, Shinichi IIZUKA, Youn Suk KIM, Hyo Kun BAE, Sang Hee KIM, Jun Goo WON, Joong Jin NAM, Ki Joong KIM, Jae Hyouck CHOI
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Publication number: 20100156539Abstract: A power amplifier system with power control function provides accurate and efficient power control by controlling a bias voltage and a bias current of the power amplifier at the same time.Type: ApplicationFiled: November 13, 2009Publication date: June 24, 2010Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Sang Hoon Ha, Sang Hee Kim, Joong Jin Nam, Ki Joong Kim, Jae Hyouck Choi, Shinichi Ilzuka, Youn Suk Kim