Robert L Peacock

US Patent:

20070044355, Mar 1, 2007

Filed:

Sep 1, 2005

Appl. No.:

11/217897

Inventors:

Robert Shofner - Canton OH, US
Robert Peacock - Akron OH, US
James Maloney - North Canton OH, US

International Classification:

G09F 21/06

US Classification:

040212000

Abstract:

A large-scale high-visibility, color LED display sign intended for viewing from a long distance is described wherein power is managed by dividing the display sign into two or more distinct sections and providing power to each section from a respective separate power source. As a result, the amount of current drawn from any one source is reduced, thereby reducing require conductor sizes, circuit breaker trip limits, etc. Additionally, in applications where two or more power sources are available, this permits the distribution of the power load from the sign across the multiple sources without requiring bulky, complex and expensive power sharing apparatus. The sign's computer interface electronics are operated (scanned) directly by bus-connected interface circuitry. This eliminates the need for an external image buffer memory, since the computer's local memory acts as an image buffer. The computer serially transmits pixel data to the display via the interface mechanism. The display data is held in shift registers that receive the serial data. When the data for any given section of the sign is completely shifted in, a strobe is generated to transfer the pixel data to the display. Because of the direct bus-connected nature and direct computer control of the scanning action of the sign's interface circuitry, considerable interface circuitry is eliminated and data transfer operations at the full speed of the computer system.

US Patent:

20130027279, Jan 31, 2013

Filed:

Jul 27, 2011

Appl. No.:

13/191837

Inventors:

Robert Herman Peacock - Akron OH, US

International Classification:

G09G 5/00

US Classification:

345 13

Abstract:

A high-visibility display system includes two or more sign sections with each sign section being supplied with display data by a single computer transmitting the display data concurrently.