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. 23, 2003
Filed:
Oct. 15, 1999
Applicant:
Inventors:
Joshua L. Koslov, Hopewell, NJ (US);
Frank Anton Lane, Medford Lakes, NJ (US);
Assignee:
Hitachi America, Ltd., Tarrytown, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/10 ;
U.S. Cl.
CPC ...
H04B 1/10 ;
Abstract
Methods and apparatus for implementing digital resampling circuits which create one or more bitstreams which include samples at desired rates, from an input bitstream having a fixed sample rate, are described. The resampling circuits of the present invention achieve the desired sample rates by performing digital interpolation on samples included in the input signal. The interpolation is performed using a filter, e.g., an all-pass infinite impulse response filter which produces an output as a function of a controllable signal delay.