Packet configuring method and packet receiver

Details Packet configuring method and packet receiver Packet configuring method and packet receiver

2008-01-01

2008-01-01

Pham, Chi (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C375S147000

Reissue Patent

active

RE039981

ABSTRACT:
A packet receiver is provided that accurately estimates a frequency offset and a channel impulse response even when a transmitted packet is detected with an erroneous timing in a communication mode (typified by the LAN (local Area Network)) where packets are asynchronously transmitted, and thus provides a training sequence which can demodulate the received packet. The training sequence101is formed of K sequences100-1to100-K serially connected, each formed of the same N symbols. Even in a channel where a intersymbol interference occurs when such a training sequence is used, a received signal shifted by the time corresponding to N-symbols becomes the signal which is different by a phase difference caused by a frequency offset between the transmitter and the receiver. Thus, even if the head of a packet is detected with an erroneous timing, the frequency offset can be estimated.

REFERENCES:
patent: 4868850 (1989-09-01), Kaku et al.
patent: 5414734 (1995-05-01), Marchetto et al.
patent: 5889474 (1999-03-01), LaDue
patent: 5909462 (1999-06-01), Kamerman et al.
patent: 6408330 (2002-06-01), DeLaHuerga
patent: 0 851 602 (1998-07-01), None
patent: 3-254255 (1991-11-01), None
patent: 6-252966 (1994-09-01), None
patent: 8-223240 (1996-08-01), None
patent: 2600970 (1997-01-01), None
patent: 10-163816 (1998-06-01), None
Japanese Office Action issued Mar. 13, 2001 (w/ English translation of relevant portion).

Affiliated with

Also associated with

Rating

Packet configuring method and packet 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 Packet configuring method and packet receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Packet configuring method and packet receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2763725