Kenneth W Powell

US Patent:

53509099, Sep 27, 1994

Filed:

Oct 14, 1992

Appl. No.:

7/960656

Inventors:

Kenneth E. Powell - Boca Raton FL
Deborah A. Mallory - Lantana FL

Assignee:

International Business Machines Corp. - Armonk NY

International Classification:

G06K 710

US Classification:

235472

Abstract:

An apparatus for scanning bar code data recorded on a target includes a source emitting a beam of radiation, and optics for deflecting the beam of radiation along an axis normal to the beam. The apparatus further includes an electronic shutter element defining a plurality of adjacent regions, each region independently capable of assuming a substantially transparent state, and, digital logic, for causing the adjacent regions of the shutter element to assume substantially transparent states in a sequential, directional manner along the axis to affect directional transmission of less than all of the deflected beam onto the target. The apparatus further includes a detector for sensing the presence of radiation reflected from the target, and, optics for converting the radiation reflected from the target into a beam and for focussing the beam onto the detector.

US Patent:

44866534, Dec 4, 1984

Filed:

Oct 28, 1981

Appl. No.:

6/315761

Inventors:

Kenneth E. Powell - Boca Raton FL

Assignee:

International Business Machines - Armonk NY

International Classification:

G06K 708

US Classification:

235449

Abstract:

The invention is directed to circuitry for reproducing the data on a magnetic stripe recorded. A security access card is manually passed through a card-reading device at an uneven low velocity, storing the data in one half cycle of operation in uniform number of data storage cells despite the unevenness of speed, and reading out the data at a predetermined rate, during the other half cycle of operation for delivery to a data processing unit.