David G Harper

US Patent:

49186000, Apr 17, 1990

Filed:

Aug 1, 1988

Appl. No.:

7/226721

Inventors:

David T. Harper - Dallas TX
Darel A. Linebarger - Plano TX

Assignee:

Board of Regents, University of Texas System - Austin TX

International Classification:

G06F 1206

US Classification:

364200

Abstract:

Conflict-free vector access of any constant stride is made by preselecting a storage scheme for each vector based on the accessing patterns to be used with that vector. A respective storage scheme for each vector, for example, is selected to provide conflict-free access for a predetermined stride S. The respective storage scheme involves a rotation or permutation of an addressed row of corresponding memory locations in N parallel modules in main memory. The amount of rotation or permutation is a predetermined function of the predetermined stride S and the row address. The rotation is performed by modulo-N addition, or the permutation is performed by a set of exclusive-OR gates. For a system in which N is a power of 2 such that n=log. sub. 2 N, the predetermined stride S is factored into an odd component and an even component that is a power of 2. The factorization is easily performed by a shift and count procedure, a shifter and counter, or a priority encoder.

US Patent:

20150121732, May 7, 2015

Filed:

Nov 5, 2013

Appl. No.:

14/072173

Inventors:

- St. Paul MN, US
AUDREY A. SHERMAN - Saint Paul MN, US
MICHAEL A. MEIS - Stillwater MN, US
KEVIN R. SCHAFFER - Woodbury MN, US
PATRICK A. THOMAS - Lake Elmo MN, US
JOHN C. SCHULTZ - Afton MN, US
MICHAEL H. HANSBERRY - Minneapolis MN, US
WILLIAM J. BRYAN - Mahtomedi MN, US
DAVID A. HARPER - Saint Paul MN, US

Assignee:

3M INNOVATIVE PROPERTIES COMPANY - St. Paul MN

International Classification:

G09F 13/14
G09F 13/04

US Classification:

40582, 40541

Abstract:

Hybrid signage capable of self illumination and having an active backlight. The signage includes a turning film having a structured surface for redirecting light in order to passively illuminate a printed graphic or shaped sign when the backlight is off. In the shaped sign, the shape provides the content, such as letters, to be conveyed to the viewer instead of a graphic. The signage can be actively illuminated when the backlight is on to supplemental the passive illumination.

Address:

3749 123 Ln NW, Minneapolis, MN 55433

VIN:

3MEHM02127R636926

Make:

FORD

Model:

MILAN

Year:

2007

Address:

9761 Bending Oak Dr, Midlothian, VA 23112

VIN:

3N1AB61E97L614847

Make:

NISSAN

Model:

SENTRA

Year:

2007