Method and system for mixed analog-digital automatic gain...

Details Method and system for mixed analog-digital automatic gain... Method and system for mixed analog-digital automatic gain...

2007-05-15

2007-05-15

Nguyen, Linh (Department: 2819)

Coded data generation or conversion

Converter compensation

C341S139000, C341S131000

Reexamination Certificate

active

10869367

ABSTRACT:
Aspects of the invention provide a method and system for a mixed analog-digital automatic gain control. The received analog signal is amplified by the analog amplifier and then converted to a digital value by an ADC. A clamp reference level of the converted signal is removed prior to applying a digital gain to a digital multiplied. Once the digital gain is applied, the clamp reference level is restored to the digital signal. A loop filter determines the system time response from the error between an amplitude parameter of the received signal and an AGC reference level. A gain separation circuit generates the system gain and separates it into a digital gain and an analog gain in a way to maximize the use of the analog amplifier. The analog gain is applied to the analog amplifier and the digital gain is applied to the digital multiplier.

REFERENCES:
patent: 5351050 (1994-09-01), Thompson et al.
patent: 5732334 (1998-03-01), Miyake
patent: 5812077 (1998-09-01), Boie
patent: 5838272 (1998-11-01), Steiner et al.
patent: 5844512 (1998-12-01), Gorin et al.
patent: 5990814 (1999-11-01), Croman et al.
patent: 6057891 (2000-05-01), Guerin et al.
patent: 6215427 (2001-04-01), Bonhoure et al.
patent: 6353405 (2002-03-01), Yang et al.
patent: 6441684 (2002-08-01), Nakamura
patent: 6459397 (2002-10-01), Olgaard et al.
patent: 6498927 (2002-12-01), Kang et al.
patent: 2004/0062326 (2004-04-01), Burke et al.

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