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. 19, 2022
Filed:
Aug. 21, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Teruo Jo, Tokyo, JP;
Hiroshi Yamazaki, Tokyo, JP;
Munehiko Nagatani, Tokyo, JP;
Hiroshi Hamada, Tokyo, JP;
Hideyuki Nosaka, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A wide-band analog input signal is converted into a digital output signal on the basis of a band division method without the need for filter circuits. An analog processing block A(j=2 to N, where N is an integer) down-converts an analog input signal Susing a cutoff frequency fj-of a channel CHand A/D-converts an analog signal Sacquired as a result. A digital processing block Bdoubles the signal strength of a first digital signal Sacquired by A, subtracts a third digital signal Sof the channel CHfrom a second digital signal Sacquired as a result, up-converts the acquired third digital signal Susing the cutoff frequency f, and outputs the result to an adder as a channel output signal Sof a corresponding channel CH.