SILICON TOUCH TECHNOLOGY INC.
47Patents
40Active
47Granted
53Portfolio score
Filing activity: Jul 16, 1998 → Jul 24, 2020 · 12 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6020700A | DC brushless motor drive circuit having input signal compatability to hall effect ICs and hall sensors | Electricity | 23 | Expired |
| US6380704B1 | Fan linear speed controller | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6621242B2 | Motor speed control circuit having a synchronous PWM signal | Electricity | 18 | Expired |
| US6140782A | Brushless DC fan driver with overshoot voltage prevention and enhanced operational efficiency | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8947008B2 | Driver circuit and related error detection circuit and method | Emerging Cross-Sectional Technologies | 4 | Active |
| US7719527B2 | LED control circuit for automatically generating latch signal | Electricity | 4 | Active |
| US8248576B2 | Double-layer liquid crystal lens apparatus | Physics | 4 | Active |
| US6529356B2 | Power polarity reversal protecting circuit for an integrated circuit | Electricity | 3 | Expired |
| US7352245B2 | Auto-range current mirror circuit | Electricity | 3 | Active |
| US7550896B1 | Piezoelectric actuator system with position detection function and method thereof | Electricity | 3 | Active |
| US8310114B2 | Power generating device | Electricity | 2 | Active |
| US9684101B2 | Optical zoom structure | Physics | 2 | Active |
| US9804302B2 | Liquid crystal lens structure and driving method thereof | Physics | 2 | Active |
| US6542190B1 | Image sensor with function of electronic shutter | Electricity | 2 | Expired |
| US8421990B2 | Liquid crystal lens | Physics | 2 | Active |
| US7616222B2 | Drive method to reduce power dissipation for flat panel display | Physics | 1 | Active |
| US8451408B2 | Electrically tunable liquid crystal lens set with central electrode | Physics | 1 | Active |
| US8907735B2 | Pulse width modulation circuit and pulse width modulation signal generating method having two refresh rates | Electricity | 1 | Active |
| US7449955B2 | Chain-chopping current mirror and method for stabilizing output currents | Physics | 1 | Active |
| US9868256B2 | Three-dimensional printing system and method for three-dimensional printing | Physics | 1 | Active |
| US11442331B2 | Mobile communication apparatus, optical assembly and aperture module of optical assembly | Electricity | 0 | Active |
| US11467432B2 | Multifunctional eyeglass device | Physics | 0 | Active |
| US7630218B2 | Voltage converter capable of correctly enabling secondary converting module coupled to output port of voltage converter by utilizing slope indication signal having different pulse amplitudes representative of different slope values | Emerging Cross-Sectional Technologies | 0 | Active |
| US9897804B2 | Liquid crystal lens | Physics | 0 | Active |
| US9609712B2 | Signal generating method and circuit for controlling dimming of LED | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.