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:
Nov. 25, 2003
Filed:
Jun. 28, 1999
Applicant:
Inventors:
Dale H. Nelson, Shillington, PA (US);
Tseng-Nan Tsai, Allentown, PA (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/500 ;
U.S. Cl.
CPC ...
H04B 1/500 ;
Abstract
Sampling noise in an analog signal output from a codec, such as a speech codec, is reduced using linear interpolation. The output of a codec is input into two sample and hold circuits. The circuits generate two output signals (i.e. voltages) for each input signal. One of the output signals represents an interpolated signal located midway between an historical output signal and input signal. The generation of interpolated output signals reduces sampling noise.