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:
Sep. 19, 1978
Filed:
Dec. 03, 1976
Applicant:
Inventors:
Thomas M Frey, Brighton, NY (US);
Stephen F Pond, Fairport, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G11B / ;
U.S. Cl.
CPC ...
346 741 ; 360 70 ;
Abstract
Constant wavelength magnetic imaging is provided by generating a signal having a frequency proportional to the speed of a rotational recording member, multiplying that frequency up to a higher, desired recording frequency, and phase-locking the higher frequency signal to the unmultiplied lower frequency, thus synchronizing the recording frequency with the motor speed.