Cryptography – Communication system using cryptography – Wireless communication
Patent
1990-07-09
1992-08-04
Gregory, Bernarr E.
Cryptography
Communication system using cryptography
Wireless communication
375 1, 375120, 331 18, 331 25, 455136, 455266, H04B 106, H04B 702
Patent
active
051366452
ABSTRACT:
A phase locked loop utilizing digital techniques to control the closed loop bandwidth of the RF carrier phase locked loop in a receiver provides high sensitivity and a wide dynamic range for signal reception. After analog to digital conversion, a digital phase locked loop bandwidth controller provides phase error detection with automatic RF carrier closed loop tracking bandwidth control to accommodate several modes of transmission.
REFERENCES:
patent: 4186347 (1980-01-01), Brockman et al.
English James T.
Gregory Bernarr E.
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