Hypersonic transducer

Details Hypersonic transducer Hypersonic transducer

2007-12-25

2007-12-25

Chin, Vivian (Department: 2615)

Electrical audio signal processing systems and devices

One-way audio signal program distribution

C381S079000, C367S138000

Reexamination Certificate

active

10800869

ABSTRACT:
This invention provides methods and apparatus for focusing a hypersonic beam to control both a direction and depth of audible formation delivery. Signals that are delivered to each of a plurality of hypersonic transducer elements are adjusted in phase so that transmitted hypersonic signals are focused at a focal point anywhere in space. The focal point of a focused hypersonic beam may be used to scan a space of interest when used in a receive mode in a pinging process. When objects are detected, a focused hypersonic beam may be used to deliver audible information substantially only to a neighborhood of the detected object.

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patent: 6850623 (2005-02-01), Norris et al.
patent: 7130430 (2006-10-01), Milsap
patent: 2001/0007591 (2001-07-01), Pompei
patent: 2003/0185405 (2003-10-01), Spencer et al.
patent: 2005/0152561 (2005-07-01), Spencer

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