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. 04, 1979
Filed:
Mar. 27, 1978
Edwin M Schaefer, III, North Aurora, IL (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
An output timing arrangement for single-wall magnetic domain apparatus for ensuring the concurrence of a domain-generated output signal and the output strobe. Voltages generated at the detector array of the apparatus by its in-plane rotating drive field are employed prior to readout to control the timing of the strobe signal. More specifically, the voltages generated by the rotating field at the second harmonic frequency of its fundamental frequency are filtered out to generate timing data indicative of the precise time at which a domain-generated signal may be expected during a subsequent readout operation. The occurrence of the output strobe signal is thus caused to track variations in the phase angle of the rotating field, which variations in the past frequently affected the strobe timing and hence the reliability of readout.