Spread spectrum communication apparatus and demodulator surface

Details Spread spectrum communication apparatus and demodulator surface Spread spectrum communication apparatus and demodulator surface

1996-07-10

1999-06-01

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375207, 375208, 333193, H04B 1707, H03H 900

Patent

active

059094613

ABSTRACT:
A spread spectrum communication apparatus includes at least one surface acoustic wave matched filter, a plurality of surface acoustic wave delay lines having different delay amounts, and integrating circuits for integrating an output signal of the surface acoustic wave matched filter and the respective output signals of the plurality of surface acoustic wave delay lines.

REFERENCES:
patent: 4164628 (1979-08-01), Ward et al.
patent: 5187718 (1993-02-01), Takehara
patent: 5189330 (1993-02-01), Niitsuma
patent: 5353304 (1994-10-01), Mochizuki
patent: 5355389 (1994-10-01), O'Clock et al.
patent: 5365516 (1994-11-01), Jandrell
patent: 5434893 (1995-07-01), Le Roy et al.
patent: 5467367 (1995-11-01), Izumi et al.
Eigler, Hans, Mikroelektronische Filter, Berlin, Verlag Technik GmbH, 1990, pp. 258-274.
Haykin, Simon, Digital Communications; New York, John Wiley & Sons, 1988, pp. 445-473.

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