Act device having optical control of saw velocity

Details Act device having optical control of saw velocity Act device having optical control of saw velocity

1991-02-22

1993-09-07

Pascal, Robert J.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic surface wave propagation means

333165, 310313R, 257245, H03H 942, H01L 4108, H01L 2996

Patent

active

052433072

ABSTRACT:
A high speed analog to digital converter system employs a set of ACT devices in parallel to buffer a high speed data sampling rate to the processing rate of the analog to digital converters employed. Vernier control of phase between individual devices is maintained by controlling the speed of propagation of the SAW wave by illumination of the substrate in response to a phase comparison between the SAW and a reference signal.

REFERENCES:
patent: 3706055 (1972-12-01), Dieulesaint et al.
patent: 4025954 (1977-05-01), Bert
patent: 4620167 (1986-10-01), Brooks et al.
patent: 4633285 (1986-12-01), Hunsinger et al.
patent: 4926083 (1990-05-01), Merritt et al.
patent: 4980596 (1990-12-01), Sacks et al.
patent: 5034793 (1991-07-01), Malocha et al.
Crowley, J. D. et al; "Acoustoelectrically controlled SAW power divider" 1977 Ultrasonics Symposium Proceeding; Phoenix Ariz. Oct. 26-28, 1977; pp. 633-636.

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