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:
Dec. 06, 1977
Filed:
Jul. 30, 1976
Peter K George, Placentia, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
There is described an improved switching device for use in magnetic bubble domain systems. In this device, chevron propagation paths are utilized. A pair of substantially parallel conductors are interconnected at appropriate locations via the chevrons in the respective propagation paths. The pair of conductors permits reduced amplitude requirements in the control current signal. In addition, a return path for the current signal is provided to simplify interconnection in major/minor loop chip configurations. The chevrons are arranged such that the apex of one chevron group is contained between the pair of conductor lines. The ends of adjacent chevron groups in another propagation path are disposed between the pair of conductor lines. Consequently, the magnetic bubble domain 'sits' on the chevron ends longer whereby wider phase margins during a transfer operation are achieved. Annihilation of magnetic bubble domains can be achieved by reversing the current direction.