Device and method for digitizing a receiver signal strength indi

Details Device and method for digitizing a receiver signal strength indi Device and method for digitizing a receiver signal strength indi

1998-11-13

2000-09-19

Maung, Nay

Telecommunications

Receiver or analog modulated signal frequency converter

Measuring or testing of receiver

4552264, 455 673, 375317, 375318, H04B 1700

Patent

active

061224952

ABSTRACT:
A device and method for digitizing a RSSI signal in a wireless transmission system is disclosed, which comprises a micro-controller having a ring counter and a controller, a low-pass filter, and a comparator. To start a digitization process, the controller gradually increases a numeric control signal to control a ring counter to generate a square wave with different duty cycle. Subsequently, the square wave is filtered by a low-pass filter to obtain a DC threshold voltage. If the threshold voltage is larger than the RSSI voltage, the digitization process is complete and the final numeric control signal represents the digitized RSSI signal.

REFERENCES:
patent: 5239666 (1993-08-01), Truby
patent: 5390365 (1995-02-01), Enoki et al.
patent: 5408693 (1995-04-01), Alton et al.
patent: 6009124 (1999-12-01), Smith et al.
patent: 6011963 (2000-01-01), Ogoro

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