Delta-sigma modulation apparatus, delta-sigma modulation method, and recording medium
AssigneeNEC Corporation
InventorsMasaaki TANIO, Naoto ISHII, Kazushi MURAOKA
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Abstract
A delta-sigma modulation apparatus performs delta-sigma modulation on a first signal as an input signal and outputs a second signal, outputs, 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 performs the delta-sigma modulation on the first signal using the fourth signal and outputs the second signal.
Claims19
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.
A delta-sigma modulation method comprising:
- performing delta-sigma modulation on a first signal as an input signal, and outputting a second signal;
- outputting, 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
- performing the delta-sigma modulation on the first signal using the fourth signal, and outputting the second signal.
A non-transitory computer-readable recording medium on which a program is recorded, the program causing a processor to execute:
- performing delta-sigma modulation on a first signal as an input signal, and outputting a second signal;
- outputting, 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
- performing the delta-sigma modulation on the first signal using the fourth signal, and outputting the second signal.
Dependencies are inferred from the claim text.