Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Tower Manufacturing Corporation

Bilge Sense LLC

Petar Horvatic

David A Durfee

Victor V Aromin

Jeanette Numbers

Walmen Dumaliang

Steven O'Connell

Norbert Schiffner

Courtney Pauline Medeiros

Alexander M Wang

Benjamin Ricci

A fluid sensing switch comprising a flex sensor having a plurality of conductive sensing areas and an energizing conductive area and a synchronous detector that detects a presence and a content of a bilge and produces a signal that is used to activate a pump.

Fluid sensing switch

A programmable arc fault circuit interrupter (AFCI) is provided. The programmable AFCI includes a dual resistive shunt array for developing inputs to an analog front end which in turn develops trigger quantities for input to a programmable processor. The programmable processor determines if the trigger quantities, singularly, or in the aggregate, exceed predetermined thresholds. Determining the predetermined thresholds are exceeded the processor issues a trigger command to momentarily energize a delatching coil, thus removing AC mains power from a load.

Programmable arc fault circuit interrupter (AFCI)

Techniques for watermarking digital representations such as MPEG audio frames that spread the watermark information across the entire audio frame. The techniques work in conjunction with lossy compression techniques and are compatible with the perception models that are often used with lossy compression techniques. The watermark information is spread by means of transformations between the space/time domain and the frequency domain. When a MPEG audio frame is being watermarked, the compressed audio frame as it is produced by the quantizer is transformed from the frequency domain to the time domain; the time domain transformation is then randomized using a key and the randomized time domain transformation is transformed into the frequency domain. The watermark information is added at a predetermined frequency in the frequency domain transformation and the sequence of transformations is done in reverse order, with the randomization and derandomization serving to distribute the watermark information across the frequency domain representation of the watermarked audio frame.

Watermarking digital representations that have undergone lossy compression

Growing community of inventors

Providence, RI, United States of America

Petar Horvatic