System/method for receiving ASK and FSK signals using a single RF receiver
US7327806B2 · kind B2 · utility
7Cited by
0References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 20, 2004 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/0012
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system utilizes a single receiver to simultaneously receive and demodulate both amplitude shift keying (ASK) messages and frequency shift keying (FSK) messages. The single receiver is used to demodulate the FSK modulated message and the single receiver provides a received signal strength indicator (RSSI) signal that provides an indication of a combined strength of the FSK and ASK messages. The RSSI signal is filtered and then data sliced to provide a digital message that corresponds to a demodulated version of the ASK modulated message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.