Matched filter acting in charge domain

Details Matched filter acting in charge domain Matched filter acting in charge domain

1998-04-23

1999-03-23

Ghebretinsae, Temesghen

Pulse or digital communications

Repeaters

Testing

36472411, 333165, H04B 1707, H03H 1502

Patent

active

058870253

ABSTRACT:
A charge mode operation circuit dedicated to detect the correlation between analog input signal and digital code, and for realizing by "RAKE method" the path diversity reception from the correlation data obtained using the same. The circuit utilizes an analog shift register using at least one charge transfer device for transferring a charge signal packet, a plurality of charge signal generation units, arranged along the analog shift register and provided, respectively, with substantially uniform voltage charge conversion characteristic controlled by a common input sign; and a routing mechanism for selectively transferring output charge packets generated by the plurality of charge signal generation units in given directions according to digital bit signal provided separately.

REFERENCES:
patent: 3819958 (1974-06-01), Gosney
patent: 3987293 (1976-10-01), Crooke et al.
patent: 4120035 (1978-10-01), Cases et al.
patent: 4218752 (1980-08-01), Hewes et al.
patent: 4882668 (1989-11-01), Schmid et al.
patent: 5539404 (1996-07-01), Nagazumi

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