Other

Polaroid Corporation

Robert Francis Hartmann

Gregg Robert Draudt

Michael Fong

Christopher Olin Evans

Manas Chandran Menon

Teddy David Thomas

Stuart Eric Schechter

Harald Quintus-Bosz

Fa Dai

Christopher Robert McCaslin

John B Kinnard

Craig Charles Ovans

Klaus Renner

Evan Alton Hutker

Anthony Clegg Parker

Andrew C Goodfellow

John A Deros

Piotr Diduch

Julien Prosper Marc Aknin

Justin David Cumming

Eric Smallwood

Elias R Samia

Bing Xu

Huyen NguyenNgoc Cam Le

John Stadille

Andres Parada

Walter P Haimberger

Guillermo S Ferla

Timothy R Crawford

Patrick J Hegarty

Thomas H Campbell

Some embodiments include a privacy/security apparatus for a portable communication device that includes a housing assembly configured to at least partially attenuate at least one of sound energy, acoustic energy, and electromagnetic energy including light, optical, and IR energy and RF radiation from passing through the housing assembly. The housing assembly includes a Faraday cage with two or more portions, and at least one protective shell coupled to or forming at least one aperture. The at least one aperture is configured and arranged to at least partially enclose the portable communication device so that at least a portion of the portable communication device is positioned within at least one portion of the Faraday cage, and the at least one seal coupled or integrated with the protective shell. The housing assembly can be an articulating assembly, a sliding assembly, and can include an active acoustic jamming or passive acoustic attenuation element.

Privacy and security systems and methods of use

A scanning system for a film recorder utilizes multiple digital-to-analog converters (DACs) to produce a linear output for a vertical deflection circuit which drives a vertical yoke circuit for controlling a CRT beam in a film recorder. The system contains a coarse DAC, a fine DAC, and a delta DAC which provides a signal representing the analog change from line to line. A summing circuit, a difference amplifier, a A/D converter, and a calibration sequence controlled by a DSP create a table to effectively increase the resolution and linearity of the deflection output signal.

Scanning system for film recorder

A battery cleaning system and process are provided, that make it possible to clean high capacity (12 to 72) volt acid storage batteries using appropriate cleaning solutions and liquids while recovering, cleaning and recycling the washing waste liquids, and minimizing the volume of liquid that has to be discarded.

Environmentally-friendly battery cleaning system

A printing system employs a rotating drum for carrying a photosensitive printing medium in the form of a discontinuous sheet, there being a clamp carried by the drum and rotating therewith for holding ends of the sheet to secure the sheet to the drum. The system includes a print head having a laser beam which is spatially and temporally modulated for gray-scale printing of individual pixels of an image. The head is scanned parallel to an axis of the drum. A servomechanism responsive to angular orientation of the drum produces a linear scan during rotation of the drum. An optical system within the head provides a common path through a common objective lens for both a write laser beam and for a focus laser beam of an automatic focusing apparatus which positions the objective lens rapidly by a dither motion to compensate for undulations in the surface of the print medium. The objective lens is carried at a reference position during passage of the clamp, the reference position being updated periodically by measurements of focus.

Dynamic focusing system for use with discontinuous medium

Growing community of inventors

Westford, MA, United States of America

Robert Francis Hartmann