Carrier recovery means

Details Carrier recovery means Carrier recovery means

2005-07-19

2005-07-19

Ghayour, Mohammed (Department: 2631)

Pulse or digital communications

Receivers

Angle modulation

Reexamination Certificate

active

06920189

ABSTRACT:
The present invention relates to a carrier recovery means in particular in a channel decoding unit or a digital demodulating unit of a digital broadcasting receiver. The inventive carrier recovery means comprises at least first and second phase error detecting means (2, 4) in which the first phase error detecting means (2) generates a robust phase error signal based on a digital input signal. Said second phase error detecting means (4) receives said robust phase error signal and generates therefrom a frequency sensitive phase error signal which is representative for the frequency error or frequency offset between the frequency of the receiver and the frequency of the carrier of the received digital input signal. The frequency sensitive phase error signal is then used to reduce at least the frequency error with respect to the received digital input signal to enable locking of the receiver to the carrier of the digital signal.

REFERENCES:
patent: 4888564 (1989-12-01), Ishigaki
patent: 4968955 (1990-11-01), Yoshida et al.
patent: 5001727 (1991-03-01), McDavid
patent: 5315618 (1994-05-01), Yoshida
patent: 5471508 (1995-11-01), Koslov
patent: 5553098 (1996-09-01), Cochran et al.
patent: 5875213 (1999-02-01), Asami et al.
patent: 6038267 (2000-03-01), Oura et al.
patent: 6075408 (2000-06-01), Kullstam et al.
patent: 6148039 (2000-11-01), Coman et al.
patent: 6490010 (2002-12-01), Shibuya et al.
patent: 6493396 (2002-12-01), Nguyen et al.
patent: 6577690 (2003-06-01), Barman et al.
patent: 0 526 836 (1993-02-01), None
patent: WO 93 15552 (1993-08-01), None

Affiliated with

Also associated with

Rating

Carrier recovery means does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3383130