Tunable filters having variable bandwidth and variable delay

Details Tunable filters having variable bandwidth and variable delay Tunable filters having variable bandwidth and variable delay

2006-04-25

2006-04-25

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S175000, C333S178000

Reexamination Certificate

active

07034636

ABSTRACT:
An apparatus for reducing influence by selected signal components in a communication link includes a first signal line conveying a first communication signal including a desired signal component and at least one undesired signal component; a second signal line conveying a second communication signal substantially including at least the at least one undesired signal component; a signal treating unit coupled with the second signal line for affecting at least one parameter associated with the second communication signal to present a modified second communication signal at a first output locus coupled for combining the modified second communication signal with the first communication signal to present an improved communication signal at a second output locus. The at least one undesired signal component affects the improved communication signal less than the at least one undesired signal component affects the first communication signal.

REFERENCES:
patent: 3560891 (1971-02-01), MacLeay et al.
patent: 4275364 (1981-06-01), Skatvold, Jr.
patent: 4313095 (1982-01-01), Jean-Frederic
patent: 4354276 (1982-10-01), Karabinis
patent: 4731596 (1988-03-01), Cruchon et al.
patent: 4821007 (1989-04-01), Fields et al.
patent: 5146177 (1992-09-01), Katz et al.
patent: 5270673 (1993-12-01), Fries et al.
patent: 5334959 (1994-08-01), Krafcsik et al.
patent: 5349364 (1994-09-01), Bryanos et al.
patent: 5427988 (1995-06-01), Sengupta et al.
patent: 5491454 (1996-02-01), Matz
patent: 5496796 (1996-03-01), Das
patent: 5606283 (1997-02-01), Allen et al.
patent: 5635433 (1997-06-01), Sengupta
patent: 5635434 (1997-06-01), Sengupta
patent: 5693429 (1997-12-01), Sengupta et al.
patent: 5766697 (1998-06-01), Sengupta et al.
patent: 5783977 (1998-07-01), Chetnik
patent: 5830591 (1998-11-01), Sengupta et al.
patent: 5846893 (1998-12-01), Sengupta et al.
patent: 5990766 (1999-11-01), Zhang et al.
patent: 6018279 (2000-01-01), Arthur
patent: 6049726 (2000-04-01), Gruenwald et al.
patent: 6074971 (2000-06-01), Chiu et al.
patent: 6078228 (2000-06-01), Mannerstrale
patent: 6275121 (2001-08-01), Sasaki et al.
patent: 6335662 (2002-01-01), Del Rosario, Jr. et al.
patent: 6335665 (2002-01-01), Mendelsohn
patent: 0 843 374 (1998-05-01), None
patent: WO 01/33660 (2001-05-01), None
patent: WO 02/49142 (2002-06-01), None
PatAbstract 2000244253, filed Aug. 9, 2000, Matsushita Electric Inc. Co.
PCT International Search Report for International Application No. PCT/US 02/29334; filed Sep. 17, 2002; report maiiled Nov. 14, 2002.

Affiliated with

Also associated with

Rating

Tunable filters having variable bandwidth and variable delay does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tunable filters having variable bandwidth and variable delay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable filters having variable bandwidth and variable delay will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3603259