Simplified radio frequency receiver
US8145139B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2005 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | May 29, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An oscillator is provided that is arranged to function as a simplified receiver. The oscillator has a resonator portion and a non-linear portion, which cooperate to generate an oscillating signal. The resonator portion is positioned to receive a modulated signal. In one configuration, the oscillator operates at a frequency offset from the frequency of the carrier for the modulated signal. In this simple arrangement, the oscillator functions as an active mixer, and generates a product output signal. The output signal is extracted from a high impedance point of the oscillator's non-linear device. The output signal is a demodulated or mixed signal, and may be further processed to detect a data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.