Allan S Brown

US Patent:

20120099641, Apr 26, 2012

Filed:

Oct 22, 2010

Appl. No.:

12/910728

Inventors:

TYRONE D. BEKIARES - CHICAGO IL, US
ALLAN G. BROWN - OSWEGO IL, US
ROBERT J. NOVORITA - ORLAND PARK IL, US
SCOTT J. PAPPAS - LAKE ZURICH IL, US
STEVEN D. TINE - BUFFALO GROVE IL, US

Assignee:

MOTOROLA, INC. - Schaumburg IL

International Classification:

H04N 7/12

US Classification:

37524002, 375E07076

Abstract:

A policy enforcement device performs a method for adjusting video compression parameters for encoding source video based on a viewer's environment. The method includes: receiving, from a video receiving device, a video stream identifier indicating a video stream and a source of the video stream, wherein the video receiving device is remote from the source of the video stream; receiving an indication of environmental conditions of a viewer of the video stream using the video receiving device; determining a set of video compression parameters based on the indication of environmental conditions of the viewer; sending the set of video compression parameters to the identified source of the video stream to enable encoding of the video stream to a different compression level.

US Patent:

56082967, Mar 4, 1997

Filed:

Apr 16, 1996

Appl. No.:

8/639042

Inventors:

Allan E. Brown - Palatine IL

Assignee:

Philips Electronics North America Corp. - New York NY

International Classification:

H05B 3702

US Classification:

315289

Abstract:

An ignition scheme for starting a high intensity discharge lamp requiring energy in the form of ignition pulses to be provided to the lamp prior to and substantially throughout the glow load of the lamp. An ignitor includes a bilateral switching device such as, but not limited to, a SIDAC having a breakover voltage corresponding to the lamp voltage during the lamp glow mode. The ignition scheme substantially eliminates the lamp remaining in its glow mode for a prolonged period of time thereby minimizing the possibility of lamp destruction from damage to the lamp electrodes.

US Patent:

50327674, Jul 16, 1991

Filed:

Jul 6, 1990

Appl. No.:

7/549340

Inventors:

Robert A. Erhardt - Chicago IL
Allan E. Brown - Lake Zurich IL

Assignee:

North American Philips Corporation - New York NY

International Classification:

H05B 4114

US Classification:

315219

Abstract:

An improved power supply for one or more electric discharge lamps includes a high frequency oscillator-inverter circuit coupled to the output of a full-wave rectifier circuit via a transformer primary winding (25). The rectifier circuit is energized from a low frequency source of AC voltage. The oscillator-inverter circuit supplies high frequency oscillations to the lamp via a frequency-dependent ballast coupling circuit. A regenerative power supply is coupled to the transformer primary winding by means of a secondary winding (62) of the transformer thereby to charge a capacitor (49) operative as a switchable auxiliary supply voltage for the oscillator-inverter circuit. Improved start-up operation is achieved by winding the transformer (25, 62) so as to provide a polarity inversion for the supply of electric energy to the regenerative power supply.

US Patent:

54536669, Sep 26, 1995

Filed:

Jul 29, 1994

Appl. No.:

8/283110

Inventors:

Allan E. Brown - Palatine IL

Assignee:

Philips Electronics North America Corporation - New York NY

International Classification:

H05B 4116

US Classification:

315247

Abstract:

A ballast for lighting a high intensity discharge lamp having a power factor correction scheme. The power factor correction scheme includes a triac. To prevent the triac from damage when the lamp is not lit and power line transients are present, the triac is turned ON. The triac is also turned ON whenever the lamp is lit.