Eugene F O'Donnell

US Patent:

6837584, Jan 4, 2005

Filed:

May 17, 2002

Appl. No.:

10/150349

Inventors:

Valter Drazic - Betton, FR
Eugene Murphy O'Donnell - Hamilton IN, US

Assignee:

Thomson Licensing S.A. - Boulogne-Billancourt

International Classification:

G03B 2122
G03B 2100
G03B 2114
G03B 2128
G03B 2156

US Classification:

353 74, 353 76, 353 77, 353 31, 353 82, 353 98, 348235, 359460

Abstract:

A method and apparatus for producing an apparent increase in display brightness in an RPTV engine without an actual increase in total light output. Light is generated with an illumination source and optically processed to produce a light beam of rectangular format. The light beam is formed intentionally to have an intensity that is non-uniform, varying from a peak intensity at a center of the beam to a minimum intensity at a periphery of the beam. The optical processing step can include varying the intensity to selectively produce an illumination profile that decreases by at least about 30% to 70% from the peak intensity to the minimum intensity. The optical processing step can further include projecting the light beam through an integrator that is configured to produce an illumination profile that is at least partially controlled by a length of the integrator. The integrator can be configured so that a decrease in length will result in reduced uniformity.

US Patent:

20040051815, Mar 18, 2004

Filed:

Dec 4, 2002

Appl. No.:

10/297312

Inventors:

Edward Hall - Fort Wayne IN, US
Eugene O'Donnell - Fishers IN, US
Edward Maexner - Indianapolis IN, US

International Classification:

H04N005/50

US Classification:

348/731000, 348/714000

Abstract:

A television receiver comprising a tuner, a microprocessor, a communications bus and a rewritable memory, e.g., an electrically erasable programmable read only memory (EEPROM). The memory is programmed to contain the tuner parameters for a tuner. The memory can be programmed to be matched with a tuner such that, on the manufacturing floor, the tuner from each manufacture is supplied with a matched memory for the television chassis that the tuner and memory are going to be placed within. The tuner parameters are recalled by the microprocessor and used to facilitate tuning of the tuner in a conventional manner.