US 12,126,364 B2
Delta-sigma modulation apparatus, delta-sigma modulation method, and recording medium
Masaaki Tanio, Tokyo (JP); Naoto Ishii, Tokyo (JP); and Kazushi Muraoka, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Aug. 4, 2022, as Appl. No. 17/881,152.
Claims priority of application No. PCT/JP2021/030240 (WO), filed on Aug. 18, 2021; and application No. 2022-103703 (JP), filed on Jun. 28, 2022.
Prior Publication US 2023/0054311 A1, Feb. 23, 2023
Int. Cl. H03M 3/00 (2006.01); H04B 1/04 (2006.01)
CPC H03M 3/344 (2013.01) [H04B 1/0475 (2013.01); H03M 3/43 (2013.01); H03M 3/458 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A delta-sigma modulation apparatus comprising:
a memory configured to store an instruction; and
at least one processor configured to execute the instruction,
wherein the processor is configured to
perform delta-sigma modulation; and
approximate transmission characteristics of at least part of a transmission process, and
wherein the processor is further configured to
perform the delta-sigma modulation on a first signal as an input signal and output a second signal;
output, using the second signal and a third signal generated through a transmission process of the second signal, a fourth signal that is an approximated value of a signal which is generated through at least part of the transmission process; and
perform the delta-sigma modulation on the first signal using the fourth signal and output the second signal.