System for generating amplitude matched 45 degree phase...

Details System for generating amplitude matched 45 degree phase... System for generating amplitude matched 45 degree phase...

2004-03-23

2009-06-09

Yun, Eugene (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

C455S207000, C455S108000

Reexamination Certificate

active

07546100

ABSTRACT:
A system for generating amplitude matched 45 degree phase separated signals is disclosed. Embodiments of the system for generating amplitude matched 45 degree phase separated signals include a filter arrangement including a plurality of nodes, an adjustable element associated with each node, the adjustable element configured to substantially equalize an amplitude of each vector associated with each node. The adjustable element may be an adjustable resistance or an adjustable capacitance associated with each node.

REFERENCES:
patent: 4485358 (1984-11-01), Andren et al.
patent: 5912926 (1999-06-01), Koenck et al.
patent: 5963607 (1999-10-01), Romano et al.
patent: 6396345 (2002-05-01), Dolman
patent: 7088968 (2006-08-01), Zipper
patent: 7123897 (2006-10-01), Gorcea et al.

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