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:
Jan. 12, 2021
Filed:
Sep. 26, 2018
Applicant:
Nagoya Institute of Technology;
Inventor:
Akihiko Yoneya, Aichi, JP;
Assignee:
NAGOYA INSTITUTE OF TECHNOLOGY, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/00 (2006.01); H03M 7/36 (2006.01);
U.S. Cl.
CPC ...
H03M 7/3026 (2013.01);
Abstract
What is provided is a subtractor, as a re-quantization device, which is configured to detect re-quantization noise, a discrete time filter which is configured to perform frequency weighting on the detected re-quantization noise, an adder which is configured to add an additional signal to quantization noise, and an additional signal selector which is configured to select a value at the present time of a column of an additional signal for minimizing the magnitude of quantization noise having been subjected to frequency weighting evaluated one sampling or more later.