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:
Jul. 04, 1978
Filed:
Oct. 04, 1976
Applicant:
Inventor:
Dale P Dolby, Los Altos, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360108 ; 360 84 ; 360109 ; 360130 ;
Abstract
A rotating transducing head drum, upon each revolution, carries of plurality N>3 of peripherally mounted transducer heads in K>2 successive sets each of P>1 successive sweeps across the surface of a record medium; a plurality of at least P rotating transformer halves is coupled to said heads, each head in a set to a different transformer half; and a plurality P of stationary transformer halves is provided to transmit and receive signals from the rotating halves. The number of rotating transformer halves can be as great as N, but still only P stationary halves are required.