Sierra Semiconductor
27Patents
0Active
27Granted
34Portfolio score
Filing activity: Jan 3, 1986 → Sep 30, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5377260A | Telephone circuit to control off-hook status during receipt of caller-ID signal | Electricity | 96 | Expired |
| US5479590A | Anti-aliasing method for polynomial curves using integer arithmetics | Physics | 85 | Expired |
| US5917352A | Three-state phase-detector/charge pump with no dead-band offering tunable phase in phase-locked loop circuits | Electricity | 81 | Expired |
| US5423009A | Dynamic sizing bus controller that allows unrestricted byte enable patterns | Physics | 51 | Expired |
| US5808630A | Split video architecture for personal computers | Physics | 42 | Expired |
| US5204854A | Adaptive hybrid | Electricity | 29 | Expired |
| US5546031A | Feed-back circuit for CMOS high voltage generator to program (E) eprom-memory cells | Physics | 28 | Expired |
| US5006817A | Rail-to-rail CMOS operational amplifier | Electricity | 23 | Expired |
| US5332935A | ECL and TTL to CMOS logic converter | Electricity | 20 | Expired |
| US5525936A | Temperature-compensated oscillator circuit | Electricity | 19 | Expired |
| US5489902A | Dynamic power saving video DAC | Electricity | 16 | Expired |
| US5506526A | Offset-compensated sample and hold arrangement and method for its operation | Electricity | 14 | Expired |
| US4780750A | Electrically alterable non-volatile memory device | Electricity | 14 | Expired |
| US5221890A | Reference generator | Electricity | 11 | Expired |
| US5586309A | Universal programming interface for clock generators operable in a parallel programming mode and a serial programming mode | Physics | 11 | Expired |
| US5436597A | Pro-capture circuit for phase locked loop circuits | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5442319A | Active biasing control for class-AB CMOS operational amplifiers | Electricity | 8 | Expired |
| US5825166A | Power supply self-adjusted circuit for dual or multiple voltage integrated circuits | Physics | 6 | Expired |
| US5550495A | All MOS voltage to current converter | Electricity | 6 | Expired |
| US5157349A | Differential operational amplifier | Electricity | 4 | Expired |
| US4975701A | Exponential gain control for nonlinear analog-to-digital converter | Electricity | 4 | Expired |
| US5473600A | Efficient data storage arrangement for far-end echo canceller | Electricity | 3 | Expired |
| US5188972A | Method for making bipolar transistor by self-aligning the emitter to the base contact diffusion | Electricity | 3 | Expired |
| US5675294A | Single pin crystal oscillator circuit | Electricity | 2 | Expired |
| US5598552A | Error free data transfers | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.