Acousto-optic coupler for glide slope control systems

Details Acousto-optic coupler for glide slope control systems Acousto-optic coupler for glide slope control systems

1977-03-03

1980-06-24

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

455617, G08G 500, H04B 900

Patent

active

042097673

ABSTRACT:
An acousto-optic coupler for enhancing safety and control of glide slope ection between approaching aircraft and carrier landing facilities. Aircraft engine noise is mechanically coupled through the airframe to modulate light beam signals generated by an aircraft landing light. An optical receiver on board the carrier receives the modulated light beam which is detected, filtered and amplified to produce an output signal from an acoustic transducer. The acoustic output signal is monitored by landing personnel for changes in engine noise responsive to carrier originated commands for glide slope control.

REFERENCES:
patent: 2316751 (1943-04-01), Adler
patent: 3243592 (1966-03-01), Tomiyasu et al.
patent: 3622791 (1971-11-01), Bernard
patent: 3657543 (1972-04-01), Rose
patent: 3705955 (1972-12-01), Assouline et al.
patent: 3736061 (1973-05-01), Knowlden et al.
patent: 3802780 (1974-04-01), Helm et al.

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