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:
Nov. 26, 1996
Filed:
Feb. 22, 1995
Fujitsu Limited, Kanagawa, JP;
Abstract
A clock change circuit contains: a clock gate unit for receiving first and second clock signals, and detecting a timing at which both the first and second clock signals are at an inactive level to output an active timing signal indicating the timing; a delay unit for inputting a select control signal and the timing signal, and outputting a delayed select control signal the state of which is changed to the same state of the select control signal after the active timing signal is received from the clock gate unit; and a select unit for inputting the first and second clock signals, and selects one of the first and second clock signals according to the delayed select signal to output the selected clock signal.