System for mixed analog-digital automatic gain control

Details System for mixed analog-digital automatic gain control System for mixed analog-digital automatic gain control

2008-06-03

2008-06-03

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Converter compensation

C341S131000, C341S139000, C330S009000, C330S129000, C330S133000

Reexamination Certificate

active

07382296

ABSTRACT:
Aspects of the invention provide a 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: 5808575 (1998-09-01), Himeno et al.
patent: 5812077 (1998-09-01), Boie
patent: 5838272 (1998-11-01), Steiner et al.
patent: 5884512 (1999-03-01), Wayne
patent: 5896064 (1999-04-01), Kaku
patent: 5917372 (1999-06-01), Kakura et al.
patent: 6057891 (2000-05-01), Guerin et al.
patent: 6441684 (2002-08-01), Nakamura
patent: 6498927 (2002-12-01), Kang et al.
patent: 7085334 (2006-08-01), Burke et al.
patent: 2003/0139160 (2003-07-01), Yang

Affiliated with

Also associated with

Rating

System for mixed analog-digital automatic gain control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for mixed analog-digital automatic gain control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for mixed analog-digital automatic gain control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2800529