The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 1976
Filed:
Mar. 20, 1975
James Thomas Carlo, Richardson, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A parallel access magnetic bubble memory system comprising a planar thin film optical waveguide for the propagation of linearly polarized light along a first axis and a coupler for coupling light into the guide. Detectors are positioned along the axis of the waveguide. Magnetic bubbles are moved from memory storage locations past respective detectors on respective second axes each transverse the first axis. Each of the detectors includes a coupler for coupling light out of the waveguide. The passage of magnetic bubbles past each respective detector will modulate the polarized light by the fringing fields of the bubbles and provide discrete light output signals from the respective detectors thereby indicating the passage of these bubbles.