Chia-Jun Chang
21Patents
4h-index
14Co-inventors
60Inventor score
Filing activity: Jan 13, 2004 → Sep 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8472894B2 | Signal transmitting/receiving circuit including an impedance matching circuit | Electricity | 9 | Active |
| US8860507B2 | Amplifier with gain circuit coupeld to primary coil of transformer | Electricity | 5 | Active |
| US7106131B2 | Amplifying circuit | Electricity | 4 | Expired |
| US7023263B2 | Low pass filter | Electricity | 4 | Expired |
| US11863127B2 | Amplifier device | Electricity | 1 | Active |
| US8922450B2 | Signal converting circuit capable of reducing/avoiding signal leakage and related signal converting method | Electricity | 1 | Active |
| US10938438B1 | Radio-frequency circuit | Electricity | 1 | Active |
| US8816771B2 | Signal amplifying circuit with reduced output signal noise by introducing coupling effect and related method thereof | Electricity | 1 | Active |
| US12334887B2 | Variable gain amplifier circuit and method having linearity compensation mechanism | Electricity | 0 | Active |
| US12199807B2 | Wireless transceiver having in-phase quadrature-phase calibration function | Electricity | 0 | Active |
| US12413211B2 | Frequency mixing circuit with multi-transistor architecture | Electricity | 0 | Active |
| US7190173B2 | Impedance calibration circuit and method thereof | Physics | 0 | Expired |
| US7015730B2 | Mix-type sample and hold circuit of receiving end and receiving method thereof | Electricity | 0 | Expired |
| US11283412B2 | Low noise amplifier circuit having multiple gains | Electricity | 0 | Active |
| US12388422B2 | Resistive attenuator and method for improving linearity of resistive attenuator | Electricity | 0 | Active |
| US8095101B2 | Receiving device and related method for calibrating DC offset | Electricity | 0 | Active |
| US12119802B2 | Radio frequency transceiver device | Electricity | 0 | Active |
| US7984861B2 | Hydrant apparatus and water discharging method | Emerging Cross-Sectional Technologies | 0 | Active |
| US10312863B2 | Amplifying circuit and associated receiver | Electricity | 0 | Active |
| US11990269B2 | Inductor device that can resist external interference and adjust inductance value and quality factor of inductor | Electricity | 0 | Active |
| US11588612B2 | Communication chip | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.