FSK signal receiver

Details FSK signal receiver FSK signal receiver

1997-12-10

1999-11-16

Tse, Young T.

Pulse or digital communications

Receivers

Angle modulation

375324, 375325, 375345, 329300, H04L 2714

Patent

active

059870753

ABSTRACT:
An FSK signal receiver includes an amplifier which amplifies a first FSK signal at an adjustable gain. A frequency converter converts an output signal from the amplifier into a second FSK signal having a frequency lower than a frequency of the first FSK signal. A demodulator demodulates the second FSK signal into a baseband signal. A bit-state detector detects a bit state from the baseband signal in response to a threshold. A calculator calculates a number of times of occurrence of a fact that the baseband signal moves across the threshold during a given time. The gain of the amplifier is adjusted in response to the number of times which is calculated by the calculator.

REFERENCES:
patent: 4328587 (1982-05-01), Mizuno et al.
patent: 4897857 (1990-01-01), Wakatsuki et al.
patent: 5208835 (1993-05-01), Weeks
patent: 5241568 (1993-08-01), Fernandez et al.
patent: 5311554 (1994-05-01), Morera et al.
patent: 5323425 (1994-06-01), Colamonico
patent: 5438591 (1995-08-01), Oie et al.
patent: 5455536 (1995-10-01), Kono et al.
patent: 5490179 (1996-02-01), Ong
patent: 5561673 (1996-10-01), Takai et al.
patent: 5621767 (1997-04-01), Brandt et al.

Affiliated with

Also associated with

Rating

FSK signal receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1333862