Title:
INTERFACE CIRCUIT, SIGNAL PROCESSING DEVICE, AND SIGNAL PROCESSING PROGRAM
Document Type and Number:
Japanese Patent JP2020178288
Kind Code:
A
Abstract:
To provide an interface circuit, a signal processing device, and the like for using a unipolar AD converter that AD-converts a unipolar voltage without reducing and converting an input voltage of both polarities in a predetermined range.SOLUTION: An interface circuit 10 includes conversion means that separates an input signal that is a processing target by an AD converter 11 that performs AD conversion on a unipolar signal, and has a bipolar value into a signal having a positive region and a signal having a negative region, inverts a signal having one polarity to the other polarity, and performs conversion into two signals having the same polarity and unipolarity, and further includes a reconstruction processing unit 12 that reconstructs two unipolar signals into the original bipolar signals on the basis of the result of AD conversion of the two unipolar signals converted by the interface circuit 10 by the AD converter 11.SELECTED DRAWING: Figure 1
Inventors:
SASADA ICHIRO
Application Number:
JP2019080424A
Publication Date:
October 29, 2020
Filing Date:
April 19, 2019
Export Citation:
Assignee:
SASADA JIKI KEISOKU KENKYUSHO KK
International Classes:
H03M1/12; H03G11/02
Attorney, Agent or Firm:
Yasuo Hirai