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:
Sep. 15, 2026
Filed:
Mar. 18, 2025
Seiko Epson Corporation, Tokyo, JP;
Jun Uehara, Fujimi, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A phase interpolation circuit configured to generate an interpolation clock signal obtained by performing phase interpolation between clock signals includes a current source circuit that is disposed between a power supply node and a node and supplies the node with a current that flows when one of the clock signals is active and a current that flows when the other of the clock signals is active, a discharging transistor that is disposed between the node and the power supply node and is turned on when the clock signals are inactive, a current control circuit configured to set a current ratio between the currents based on a phase interpolation signal that instructs a ratio of phase interpolation between the clock signals, and an output circuit configured to output an interpolation clock signal based on a signal at the node.