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:
Jan. 18, 1983
Filed:
May. 05, 1980
Sidney I Soclof, San Gabriel, CA (US);
Michael T Elliott, Carbon Canyon, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
A device for reading information representing magnetization patterns on a medium by means of a time-of-flight magnetotransistor detector. The time-of-flight magnetotransistor detector consists of a bipolar transistor implemented on a semiconductor surface which is in a magnetic flux coupling with a plurality of magnetization patterns. Such magnetization patterns which may be generated by a magnetic bubble domain on an adjacent bubble domain device or by a magnetized region on an adjacent media such as a magnetic tape or disk. The magnetotransistor detector consists of an emitter region, an elongated base region, and a collector region, and a twin-lead thin-film transmission line in capacitive coupling with the base region of the magnetotransistor. The presence of a magnetic field in the base region creates a Hall voltage which produces a pulse on the transmission line.