Automatic cable loss compensation

Details Automatic cable loss compensation Automatic cable loss compensation

2005-09-28

2008-12-09

Milord, Marceau (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S073000, C455S080000, C455S085000, C455S069000, C455S083000, C333S134000, C385S024000, C385S027000

Reexamination Certificate

active

07463865

ABSTRACT:
Method and apparatus are provided for compensation of an RF link between a transmitter and amplifier of a communication system. The apparatus comprises a signal source coupled to the transmitter for providing an RF test signal of a first magnitude to the RF link, a test signal measuring apparatus at the RF input of the amplifier for measuring a second magnitude of the test signal reaching the RF input of the amplifier through the RF link, and an electronically adjustable attenuator serially coupled with the RF link and responsive to differences between the first and second magnitudes so as to provide attenuation in an RF communication signal passing into the amplifier from the RF link such that the sum of RF signal loss in the link and the attenuator has a predetermined value.

REFERENCES:
patent: 4697187 (1987-09-01), Ohno et al.
patent: 5025485 (1991-06-01), Csongor et al.
patent: 5267071 (1993-11-01), Little et al.
patent: 5485823 (1996-01-01), Lintott et al.
patent: 5878329 (1999-03-01), Mallinckrodt
patent: 5889821 (1999-03-01), Arnstein et al.
patent: 5937336 (1999-08-01), Kumagai
patent: 6038428 (2000-03-01), Mizusawa et al.
patent: 6115587 (2000-09-01), Kim
patent: 6236863 (2001-05-01), Waldroup et al.
patent: 6253092 (2001-06-01), Nguyen et al.
patent: 6529710 (2003-03-01), Lindemann et al.
patent: 6690922 (2004-02-01), Lindemann
patent: 6711128 (2004-03-01), Ramakrishnan
patent: 6819478 (2004-11-01), Islam
patent: 6937600 (2005-08-01), Takagi
patent: 6946989 (2005-09-01), Vavik
patent: 6949989 (2005-09-01), Vavik

Affiliated with

Also associated with

Rating

Automatic cable loss compensation 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 cable loss compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic cable loss compensation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4028366