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:
Mar. 07, 2023
Filed:
Jan. 18, 2022
Nec Corporation, Tokyo, JP;
Shinichi Hori, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A digital modulator according to the present disclosure includes a polar converter that generates a phase signal and an amplitude signal from a baseband signal, an RF phase signal generator that generates an RF phase signal on the basis of the phase signal, a rectangulating unit that generates a rectangular RF phase signal by converting the RF phase signal into a rectangular shape, a time interleaver that time interleaves the amplitude signal and outputs first and second time interleaved signals, a ΔΣ modulator that ΔΣ modulates the first and second time interleaved signals on the basis of the rectangular RF phase signal and outputs first and second ΔΣ modulated signals, and a selector that selects and outputs one of the first and second ΔΣ modulated signals on the basis of the rectangular RF phase signal.