Title:
SIGNAL GENERATION CIRCUIT, CONTROL CIRCUIT, STORAGE MEDIUM, AND SIGNAL GENERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/188116
Kind Code:
A1
Abstract:
A signal generation circuit (1) includes: a first-stage error-feedback-type input signal quantization circuit (3-1) that uses a difference between an output signal of a first quantizer and a first input signal as an input signal to a first filter and uses an output signal from the first filter as an input signal to the first quantizer; a signal distribution unit (5) that uses a difference between the input signal to the first quantizer and the output signal from the first quantizer as a second input signal and distributes the second input signal to two or more input signal quantization circuits (3-2 to 3-N); and the two or more second-stage error-feedback-type input signal quantization circuits (3-2 to 3-N) each uses a difference between an output signal of a second quantizer and the second input signal as an input signal to a second filter and uses an output signal from the second filter as an input signal to the second quantizer. A first output signal from the input signal quantization circuit (3-1) and second output signals from the two or more input signal quantization circuits (3-2 to 3-N) are synthesized and output.
Inventors:
HAYAMA MICHIYA (JP)
YAMAGUCHI SHUHEI (JP)
YAMAGUCHI SHUHEI (JP)
Application Number:
PCT/JP2022/016017
Publication Date:
October 05, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03M3/02
Domestic Patent References:
| WO2022054200A1 | 2022-03-17 |
Foreign References:
| JP2017529023A | 2017-09-28 | |||
| JPH05152967A | 1993-06-18 |
Other References:
MCCUE JAMIN J.; DUPAIX BRIAN; DUNCAN LUCAS; PATEL VIPUL J.; QUACH TONY; KHALIL WALEED: "A time-interleaved multi-mode ΔΣ RF-DAC for direct digital-to-RF synthesis", 2015 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS SYMPOSIUM (RFIC), IEEE, 17 May 2015 (2015-05-17), pages 103 - 106, XP032818592, DOI: 10.1109/RFIC.2015.7337715
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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