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:
May. 05, 2026
Filed:
Oct. 03, 2024
Mitsubishi Electric Corporation, Tokyo, JP;
Shinji Takezoe, Tokyo, JP;
Koji Tsutsumi, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A variable attenuator includes n attenuation resistor circuits and m adjustment resistor circuits connected in parallel to a signal line, the n attenuation resistor circuits are on-off controlled by corresponding attenuation amount control signals, each of the n attenuation resistor circuits being with a different attenuation amount, the adjustment resistor circuits correspond to k attenuation resistor circuits, and are on-off controlled by a signal of a logical product of k attenuation amount control signals for performing on-off control corresponding to each of the selected k attenuation resistor circuits, and when being on-controlled by a signal of a logical product of the k attenuation amount control signals, attenuation amount of the adjustment resistor circuits are made equal to a sum of attenuation amounts when the k attenuation resistor circuits controlled by the corresponding k attenuation amount control signals are independently on-controlled.