Inventor · disambiguated record
Chia-Jun Chang
Also filed as: CHANG CHIA-JUN
21 granted patents·12 pending applications·40 citations·filing 2003–2025
91Inventor score
Top patents by PatentIndex Score
33 records- 0192US11863127B2Amplifier deviceREALTEK SEMICONDUCTOR CORP·Filed 2021·Granted Jan 2, 2024·3 cites·19 claims
- 0289US8472894B2Signal transmitting/receiving circuit including an impedance matching circuitWANG PO-CHIH·Filed 2010·Granted Jun 25, 2013·15 cites·19 claims
- 0378US8860507B2Amplifier with gain circuit coupeld to primary coil of transformerCHEN HSIEN-KU·Filed 2012·Granted Oct 14, 2014·7 cites·8 claims
- 0477US10938438B1Radio-frequency circuitREALTEK SEMICONDUCTOR CORP·Filed 2020·Granted Mar 2, 2021·1 cites·20 claims
- 0566US11990269B2Inductor device that can resist external interference and adjust inductance value and quality factor of inductorREALTEK SEMICONDUCTOR CORP·Filed 2021·Granted May 21, 2024·0 cites·8 claims
- 0665US12388422B2Resistive attenuator and method for improving linearity of resistive attenuatorREALTEK SEMICONDUCTOR CORP·Filed 2023·Granted Aug 12, 2025·0 cites·8 claims
- 0761US12413211B2Frequency mixing circuit with multi-transistor architectureREALTEK SEMICONDUCTOR CORP·Filed 2023·Granted Sep 9, 2025·0 cites·9 claims
- 0858US8922450B2Signal converting circuit capable of reducing/avoiding signal leakage and related signal converting methodCHEN HSIEN-KU·Filed 2012·Granted Dec 30, 2014·1 cites·15 claims
- 0958US2025141422A1Balun and signal conversion method from unbalanced to balancedREALTEK SEMICONDUCTOR CORP·Filed 2024·Application pending·0 cites
- 1055US2025023585A1Wireless communication device for concurrently receiving multiple types of signals and associated methodREALTEK SEMICONDUCTOR CORP·Filed 2024·Application pending·0 cites
- 1152US8816771B2Signal amplifying circuit with reduced output signal noise by introducing coupling effect and related method thereofCHEN HSIEN-KU·Filed 2012·Granted Aug 26, 2014·1 cites·14 claims
- 1251US12119802B2Radio frequency transceiver deviceREALTEK SEMICONDUCTOR CORP·Filed 2022·Granted Oct 15, 2024·0 cites·15 claims
- 1350US7106131B2Amplifying circuitREALTEK SEMICONDUCTOR CORP·Filed 2004·Granted Sep 12, 2006·6 cites·21 claims
- 1450US2025309936A1Radio frequency transceiver circuit and associated circuit setREALTEK SEMICONDUCTOR CORP·Filed 2025·Application pending·0 cites
- 1549US11588612B2Communication chipREALTEK SEMICONDUCTOR CORP·Filed 2021·Granted Feb 21, 2023·0 cites·20 claims
- 1649US11283412B2Low noise amplifier circuit having multiple gainsREALTEK SEMICONDUCTOR CORP·Filed 2020·Granted Mar 22, 2022·0 cites·10 claims
- 1749US7023263B2Low pass filterREALTEK SEMICONDUCTOR CORP·Filed 2004·Granted Apr 4, 2006·4 cites·15 claims
- 1849US2023123305A1Amplifying circuitREALTEK SEMICONDUCTOR CORP·Filed 2022·Application pending·0 cites
- 1949US2025080138A1Radio frequency transceiver circuit and associated circuit set for performing digital pre-distortion compensationREALTEK SEMICONDUCTOR CORP·Filed 2024·Application pending·0 cites
- 2048US10312863B2Amplifying circuit and associated receiverREALTEK SEMICONDUCTOR CORP·Filed 2018·Granted Jun 4, 2019·0 cites·10 claims
- 2148US2024235597A9Radio frequency receiving circuit and chip comprising the sameREALTEK SEMICONDUCTOR CORP·Filed 2023·Application pending·0 cites
- 2247US12334887B2Variable gain amplifier circuit and method having linearity compensation mechanismREALTEK SEMICONDUCTOR CORP·Filed 2022·Granted Jun 17, 2025·0 cites·20 claims
- 2347US7190173B2Impedance calibration circuit and method thereofREALTEK SEMICONDUCTOR CORP·Filed 2005·Granted Mar 13, 2007·1 cites·19 claims
- 2445US12199807B2Wireless transceiver having in-phase quadrature-phase calibration functionREALTEK SEMICONDUCTOR CORP·Filed 2022·Granted Jan 14, 2025·0 cites·9 claims
- 2540US8095101B2Receiving device and related method for calibrating DC offsetCHIU PEI-JU·Filed 2008·Granted Jan 10, 2012·1 cites·18 claims
- 2635US7984861B2Hydrant apparatus and water discharging methodCHANG CHIA-JUN·Filed 2008·Granted Jul 26, 2011·0 cites·8 claims
- 2735US7015730B2Mix-type sample and hold circuit of receiving end and receiving method thereofREALTEK SEMICONDUCTOR CORP·Filed 2004·Granted Mar 21, 2006·0 cites·14 claims
- 2835US2005151576A1Adjustable impedance circuitFiled 2005·Application pending·0 cites
- 2934US2004251948A1Adjustable impedance circuitFiled 2003·Application pending·0 cites
- 3034US2013278320A1Mixer for mixing input signal with multiple oscillating signals having different phases and related mixing method thereofCHEN HSIEN-KU·Filed 2012·Application pending·0 cites
- 3129US2008012631A1Bias current generation circuit and method thereofCHANG CHIA-JUN·Filed 2007·Application pending·0 cites
- 3228US2006197588A1Filtering device having multiple inputs and multiple feedback pathsCHANG CHIA-JUN·Filed 2006·Application pending·0 cites
- 3325US2006197592A1Variable gain amplifierCHANG CHIA-JUN·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →