Receiver having a surface elastic wave high frequency amplifier

Details Receiver having a surface elastic wave high frequency amplifier Receiver having a surface elastic wave high frequency amplifier

1982-06-07

1984-01-17

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

330 55, 331 9, 333193, 455208, 455214, 455311, H04B 126, H03L 700, H03F 700

Patent

active

044267320

ABSTRACT:
Receiver comprising at least two output means taking out electric signals corresponding to sound waves propagating in different directions in a surface elastic wave amplifier disposed in the high frequency amplifier stage, wherein phase difference or frequency difference between outputs of said output means is detected and frequency of pumping electric power applied to said surface elastic wave amplifier is controlled in response to output thus detected.

REFERENCES:
patent: 3787612 (1974-01-01), DeVries et al.
patent: 3809931 (1974-05-01), White et al.
patent: 3936751 (1976-02-01), Holmes et al.
patent: 3962652 (1976-06-01), Zarin et al.
patent: 4055816 (1977-10-01), Woskow
patent: 4115744 (1978-09-01), Lewis
patent: 4126838 (1978-11-01), McCusker et al.
patent: 4288765 (1981-09-01), Mikoshiba et al.

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