CHA; Choong Yul

Patent Applications and Registrations

Patent applications and USPTO patent grants for CHA; Choong Yul.The latest application filed is for "fbar-based local oscillator generation".

Company Profile

2.17.20

CHA; Choong Yul - Irvine CA
Cha; Choong Yul - Richardson TX US
Cha; Choong-yul - Yongin-si KR
Cha; Choong-yul - Gyeonggi-do KR
Cha; Choong-yul - Dae-jeon KR
Cha; Choong-yul - Dae-jeon the Republic of Korea KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Fbar-based Local Oscillator Generation App 20200162084 - DARABI; Hooman ; et al.	2020-05-21
Synchronous switching regulator circuit Grant 10,270,348 - Cha , et al.	2019-04-23
Synchronous Switching Regulator For Supply Regulation Of Switching Circuits App 20180241312 - CHA; Choong Yul ; et al.	2018-08-23
Broadband Digital Transmitter Using Pi/4 Phase Offset Local Oscillator (lo) Signals App 20170244433 - CHA; Choong Yul ; et al.	2017-08-24
Broadband digital transmitter using .pi./4 phase offset local oscillator (LO) signals Grant 9,742,444 - Cha , et al. August 22, 2	2017-08-22
Radio architecture for an ultra low power receiver Grant 8,885,773 - Cha , et al. November 11, 2	2014-11-11
Radio Architecture For An Ultra Low Power Receiver App 20120114079 - Cha; Choong Yul ; et al.	2012-05-10
RF filter and digital broadcast receiving tuner and RF signal processing device using RF filter Grant 7,983,639 - Choi , et al. July 19, 2	2011-07-19
Digitally controlled oscillator (DCO) Grant 7,915,968 - Kim , et al. March 29, 2	2011-03-29
Low noise amplifier for ultra wide band Grant 7,847,636 - Cha , et al. December 7, 2	2010-12-07
Digital frequency detector and digital phase locked loop using the digital frequency detector Grant 7,812,644 - Cha , et al. October 12, 2	2010-10-12
Fast mode switching frequency synthesizing apparatus and method for operating in low power consumption Grant 7,725,088 - Cha , et al. May 25, 2	2010-05-25
High resolution time detecting apparatus using interpolation and time detecting method using the same Grant 7,710,835 - Kim , et al. May 4, 2	2010-05-04
Low noise amplifier for ultra wide band Grant 7,616,061 - Cha , et al. November 10, 2	2009-11-10
Multi-input multi-frequency synthesizing apparatus and method for multi-band RF receiver Grant 7,580,486 - Cha , et al. August 25, 2	2009-08-25
Adjustable Inductor And Wideband Voltage Controlled Oscillator App 20090174493 - Jeon; Sang-yoon ; et al.	2009-07-09
Digitally Controlled Oscillator (dco) App 20090153259 - KIM; Tae-wook ; et al.	2009-06-18
Low Noise Amplifier For Ultra Wide Band App 20090140815 - Cha; Choong-yul ; et al.	2009-06-04
High Resolution Time Detecting Apparatus Using Interpolation And Time Detecting Method Using The Same App 20090027088 - KIM; Tae-wook ; et al.	2009-01-29
Digital Frequency Detector And Digital Phase Locked Loop Using The Digital Frequency Detector App 20080315921 - CHA; Choong-yul ; et al.	2008-12-25
Active Balun App 20080224795 - CHOI; Kyu-don ; et al.	2008-09-18
Source coupled differential complementary colpitts oscillator Grant 7,420,429 - Cha , et al. September 2, 2	2008-09-02
Rf Filter And Digital Broadcast Receiving Tuner And Rf Signal Processing Device Using Rf Filter App 20080182535 - CHOI; Kyu-don ; et al.	2008-07-31
Quadrature signal generator for tuning phases of all of four generated quadrature signals Grant 7,397,317 - Park , et al. July 8, 2	2008-07-08
Frequency synthesizer for mixing reference frequencies Grant 7,345,551 - Cha , et al. March 18, 2	2008-03-18
Frequency synthesizer Grant 7,310,023 - Cha , et al. December 18, 2	2007-12-18
Source coupled differential complementary colpitts oscillator App 20070257742 - Cha; Choong-Yul ; et al.	2007-11-08
Multi-input multi-frequency synthesizing apparatus and method for multi-band RF receiver App 20070140392 - Cha; Choong-Yul ; et al.	2007-06-21
Fast mode switching frequency synthesizing apparatus and method for operating in low power consumption App 20070104290 - Cha; Choong-Yul ; et al.	2007-05-10
Wide tunable polyphase filter with variable resistor and variable capacitor App 20070100927 - Park; Eun Chul ; et al.	2007-05-03
Frequency synthesizer App 20070008429 - Cha; Choong-yul ; et al.	2007-01-11
Complementary voltage controlled oscillator Grant 7,123,112 - Kang , et al. October 17, 2	2006-10-17
Frequency synthesizer for mixing reference frequencies App 20060183455 - Cha; Choong-yul ; et al.	2006-08-17
Low noise amplifier for ultra wide band App 20060170502 - Cha; Choong-Yul ; et al.	2006-08-03
Quadrature signal generator for tuning phases of all of four generated quadrature signals App 20060170507 - Park; Eun-chul ; et al.	2006-08-03
Voltage controlled oscillator using complementary transistors App 20060055477 - Kang; Dong Kyun ; et al.	2006-03-16

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