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:
Mar. 10, 2015
Filed:
Mar. 04, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Noriyuki Tokuhiro, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A semiconductor apparatus includes a phase detecting unit that continuously detects a first delay amount during a read operation, based on a phase difference between an external clock signal and an internal clock signal; a generating unit that generates a second control signal by delaying a first control signal by a second delay amount that when added to the first delay amount, the sum is a specific time period, a valid time period of the first control signal starts when the read operation starts and is at least to equal a read time for one data signal and less than the specific time period that is from the start of the read operation until output of a received data signal; and a delay control unit that delays the data signal by the first delay amount detected at a start of a valid time period of the generated second control signal.