On-chip high-pass filter with large time constant
US6882216B2 · kind B2 · utility
28Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Jun 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An on-chip high-pass filter with large time constant comprising a capacitor, a first transistor having a first terminal connected to a first voltage source and a second terminal connected to the capacitor, and a second transistor having a first terminal connected to the second terminal of the first transistor and a second terminal connected to ground, wherein the first transistor and the second transistor are for operating as a large-resistance resistor. The electrical equivalent large-resistance resistor and the capacitor together form a high-pass filter between the input port and the output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.