Pyroelectric demodulating detector
US7397301B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 2006 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Oct 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D1/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A pyroelectric demodulating detector (also termed a pyroelectric demodulator) is disclosed which utilizes an electrical resistor stacked upon a pyroelectric element to demodulate an rf or microwave electrical input signal which is amplitude-modulated (AM). The pyroelectric demodulator, which can be formed as a hybrid or a monolithic device, has applications for use in AM radio receivers. Demodulation is performed by feeding the AM input signal into the resistor and converting the AM input signal into an AM heat signal which is conducted through the pyroelectric element and used to generate an electrical output signal containing AM information from the AM input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.