Apparatus and method for tuning electro-mechanical filter components
US4112360A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1977 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Feb 7, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49004
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for tuning components of an electrical mechanical filter which includes a plurality of mechanical resonators coupled together with input and output resonators and other resonators mounted between the input and output resonators which can be tuned without mechanically damping the input and output resonators by providing an input feed circuit coupled to the input transducer and an output circuit coupled to the output transducer having characteristics such that the frequency of the resonator without a transducer can be accurately measured and wherein the frequencies of the input and output resonators do not adversely effect the frequency measurement of the resonator without a transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.