E.i. Dupont De Nemours and Company

Other

Frank Knowles Patterson

Kevin C Baxter

Fred H Holmes

Joseph R Rellick

Carl E Killian

A system and method for detecting, identifying, and fixing the location of the source of an acoustic event. The inventive system includes: a plurality of sensors dispersed at somewhat regular intervals throughout a monitored area; a communication network adapted to deliver information from the sensors to a host processor; and a process within the host processor for determining, from the absolute times of arrival of an event at two or more sensors, a position of the source of the event. Acoustic events are detected and analyzed at each sensor so that the sensor transmits over the network: an identifier for the sensor; an identifier for the type of event; and a precise absolute time of arrival of the event at the sensor. In a preferred embodiment, the system also identifies the type of weapon firing a gunshot.

System and method for identifying and locating an acoustic event

A multilayer interconnect comprising a ceramic substrate, a patterned conductor layer, a layer of acrylic or acrylate adhesive, an organic insulating film, and a metal foil layer. Active electrical components can be soldered onto the metal foil layer. These circuits are particularly useful in under the hood automotive applications.

Multilayer interconnects

Cobalt boride conductor compositions of certain cobalt borides and, optionally, inorganic binder, dispersed in a vehicle and fireable in air to produce conductive films on substrates. Also the resultant sintered (fired) films.

Cobalt boride conductor compositions

Conductor compositions of finely divided Ni.sub.3 B.sub.1-x P.sub.x wherein x is the approximate range 0.05-0.6, dispersed in a vehicle, useful for producing sintered conductor patterns on a substrate. Glass powder may optionally be present. Also the resultant fired conductors.

Conductor compositions

Disclosed herein are powder compositions useful for making conductors, e.g., microcircuit conductors, end terminations for capacitors, electrodes for gas discharge display devices, etc. The compositions comprise inorganic powders dispersed in an inert vehicle and are printed and fired in the conventional manner on dielectric substrates. The inorganic powders comprise certain nickel compounds (borides or boride-silicides). Glass powder, nickel metal powder, and/or nickel silicide may also be present.

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Wilmington, DE, United States of America

Frank Knowles Patterson