Steven M Feldman

US Patent:

7168974, Jan 30, 2007

Filed:

Mar 31, 2005

Appl. No.:

11/094161

Inventors:

Steven Feldman - New York NY, US
David P. Eckel - Eaton's Neck NY, US
Maxim Laurent - Brooklyn NY, US
Gaetano Bonasia - Bronx NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY

International Classification:

H01R 3/00

US Classification:

439488

Abstract:

Indicator means located in a plug or connector indicates when at least one phase of an AC multi-phase voltage is absent. The indicator means can be any one of a variety of light sources and/or an audible generator. The light source can be, for example, an LED, an illuminating ring visible from any angle around the body of the plug or connector, etc. An opaque barrier can be used to totally or partially block the light from the light source when light from the light indicator may be objectionable such as during a stage lighting application. The indicator means for detecting the absence of at least one phase can be on a printed circuit board connected to receive power from the conductors in the plug or connector.

US Patent:

20060023850, Feb 2, 2006

Filed:

May 20, 2005

Appl. No.:

11/134766

Inventors:

Steven Feldman - New York NY, US
Gaetano Bonasia - Bronx NY, US

International Classification:

H04M 11/00

US Classification:

379090010

Abstract:

A low cost communications device such as a modem reduces electrical interference or noise of signals received from a power line and transmitted to electrical devices. The modem forwards messages and commands between electrical devices and an external computer device. That is, the modem communicates over a power line without the use of a controller such as a microprocessor or microcomputer. The modem can reduce electrical interference of signals received from a power line through the use of an adjustable automatic gain (AGC) circuit.