Spread spectrum receiver having phase shifter for effecting phas

Details Spread spectrum receiver having phase shifter for effecting phas Spread spectrum receiver having phase shifter for effecting phas

1988-09-27

1990-05-08

Miller, Stanley D.

Pulse or digital communications

Repeaters

Testing

328109, 375 1, 307262, 307511, H03K 513, H04B 1500

Patent

active

049241885

ABSTRACT:
A phase shifter is disclosed which performs a desired phase shift by distributing an input signal to two signals whose phases are different by 90.degree. from each other which signals are added to each other after having been weighted with a sine and a cosine function signal, the sine and the cosine function signal being able to be set in a digital manner.

REFERENCES:
patent: 3475626 (1969-10-01), Holzman et al.
patent: 4335442 (1982-06-01), Backe
patent: 4379264 (1983-04-01), Lenhardt
patent: 4484296 (1984-11-01), Treise et al.
patent: 4625177 (1986-11-01), Conway et al.
patent: 4866734 (1989-09-01), Akazawa et al.

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