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, 2000
Filed:
Mar. 13, 1998
Applicant:
Inventor:
Constantin Michael Melas, Los Gatos, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ; H03H / ; G11B / ;
U.S. Cl.
CPC ...
375340 ; 375232 ; 360 65 ;
Abstract
A method and apparatus for the recovery of information via asynchronous signal sampling of coded analog waveforms by double interpolating values into the train of asynchronously sampled signals prior to the train being applied to a synchronous detector. The double interpolation includes averaging successive sample signals and midpoint interpolating them between the sample, and then interpolating signals between the sample signals and midpoint signals closest to predicted synchronous points. This double interpolation facilitates low sampling rates while still effectuating accurate synchronous digital detection.