Automatic Gain control system

Details Automatic Gain control system Automatic Gain control system

1988-02-26

1990-03-20

Safourek, Benedict V.

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

330284, 381108, H03G 320

Patent

active

049107976

ABSTRACT:
A digital automatic gain control system for maintaining a constant output level through attenuating or amplifying an input signal is disclosed. The system includes a gain control providing an output signal by amplifying or attenuating an input signal in a step mode in response to digital data of a data bus, a comparator deciding with a digital output whether or not said output signal is within a window reference voltage range, a stage preventing a malfunction due to noise by means of performing a counting operation upon receiving said digital output, a clock generating a clock pulse and dividing the frequency of the clock pulse, whereby there is provided a divided clock in case of performing an up counting operation and to the contrary there is provided the non-divided clock pulse in case of performing a down counting operation, and generating a reset clock delayed by a specified time interval from said clock, a latch adapted to receive and thereby latch an output of preventing stage malfunction, and reset clock and up/down counting and logic performing the up or down counting operation by receiving said clock and a latch signal.

REFERENCES:
patent: 4016557 (1977-04-01), Zitelli et al.
patent: 4611344 (1986-09-01), Hayama et al.
patent: 4670719 (1987-06-01), Sakurai
patent: 4688258 (1987-08-01), Kunugi et al.
patent: 4707840 (1987-11-01), Nakayama
patent: 4731851 (1988-03-01), Christopher
patent: 4779055 (1988-10-01), Beauducel et al.

Affiliated with

Also associated with

Rating

Automatic Gain control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic Gain control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic Gain control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-798146