Analog/digital receiver

Pulse or digital communications – Apparatus convertible to analog

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Details

375217, 455 671, H04L 2500, H04L 2700

Patent

active

055984304

ABSTRACT:
An analog/digital receiver comprises a noise detecting circuit for checking whether a noise component, output from an analog signal detecting means, is not less than a specified value, and an RSSI detecting circuit for checking whether received signal strength, output from the receiver, is not less than a specified value. A discriminating circuit is included for making a determination as to whether the received input is an analog modulation signal or a digital modulation signal according to the result of the determination made by the noise detecting circuit as well as by the RSSI detecting circuit. A select switch selects the output from either the digital signal detecting circuit or the analog signal detecting circuit.

REFERENCES:
patent: 4817192 (1989-03-01), Phillips et al.
patent: 5151922 (1992-09-01), Weiss
patent: 5483686 (1996-01-01), Saka et al.

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