Chrontel Inc.
21Patents
4Active
21Granted
39Portfolio score
Filing activity: Sep 1, 1989 → Apr 29, 2019 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5900623A | Active pixel sensor using CMOS technology with reverse biased photodiodes | Electricity | 132 | Expired |
| US5914753A | Apparatus and method to convert computer graphics signals to television video signals with vertical and horizontal scaling requiring no frame buffers | Physics | 52 | Expired |
| US5781241A | Apparatus and method to convert computer graphics signals to television video signals with vertical and horizontal scaling requiring no frame buffers | Physics | 46 | Expired |
| US5742349A | Memory efficient video graphics subsystem with vertical filtering and scan rate conversion | Physics | 44 | Expired |
| US4987373A | Monolithic phase-locked loop | Electricity | 40 | Expired |
| US6806902B1 | System and method for correcting bad pixel data in a digital camera | Electricity | 39 | Expired |
| US7283840B2 | Reconfigurable analog baseband for a single-chip dual-mode transceiver | Electricity | 32 | Expired |
| US5473342A | Method and apparatus for on-the-fly multiple display mode switching in high-resolution bitmapped graphics system | Physics | 31 | Expired |
| US6281933A | Images in interlaced formats: a novel method of scan conversion for video imaging systems | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6670838B1 | Digital clock adaptive duty cycle circuit | Electricity | 14 | Expired |
| US5874846A | Method and apparatus for frequency generation in a synchronous system | Electricity | 10 | Expired |
| US7342521B1 | System and method for multi-channel delay cell based clock and data recovery | Electricity | 9 | Active |
| US6169533A | High speed analog color key detection technique and system | Physics | 8 | Expired |
| US6144249A | Clock-referenced switching bias current generator | Physics | 7 | Expired |
| US6903749B2 | System and method for image scaling interpolation | Physics | 5 | Expired |
| US7236269B2 | System and method for dithering with reduced memory | Physics | 3 | Expired |
| US7760116B2 | Balanced rotator conversion of serialized data | Electricity | 3 | Active |
| US7463874B2 | Complex digital signal channel select filter for analog cable television | Electricity | 2 | Active |
| US7129988B2 | Adaptive median filters for de-interlacing | Electricity | 1 | Expired |
| US10921352B2 | Precision current sensing using low cost sense resistance | Physics | 0 | Active |
| US5708481A | Fast current-mode analog circuit for converting video data signals between color space formats | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.