Frequency stabilizer circuit for window covering control chip clock
US7091682B2 · kind B2 · utility
5Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Oct 29, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/32
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A logic chip that controls the motor of a motorized window covering or other object includes a clock. A frequency stabilizer circuit is provided to receive input voltage and to output to the clock a current that is a function of the voltage and temperature over a range of input voltage values and over a range of ambient temperature values so that the frequency output by the oscillator is constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.