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:
Jan. 15, 2013
Filed:
May. 25, 2010
Atsushi Uchida, Kawasaki, JP;
Yuji Hanaoka, Kawasaki, JP;
Terumasa Haneda, Kawasaki, JP;
Yoko Kawano, Kawasaki, JP;
Emi Narita, Kawasaki, JP;
Atsushi Uchida, Kawasaki, JP;
Yuji Hanaoka, Kawasaki, JP;
Terumasa Haneda, Kawasaki, JP;
Yoko Kawano, Kawasaki, JP;
Emi Narita, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An asynchronous interface circuit for transferring a data stream between different clock domains, the asynchronous interface circuits includes a data holding circuit for sequentially receiving and transferring data of the data stream in synchronism with a first clock signal, and holding the received data until an input of a next data, an asynchronous memory for sequentially receiving the data held in the data holding circuit in synchronism with the first clock signal and for outputting the data in the order of inputting in synchronism with a second clock signal. The asynchronous interface circuit further includes a monitor for detecting an operating state of the asynchronous memory, and a selector for selecting one of the data output from the asynchronous memory and the data output from the data holding circuit on the basis of a detecting result of the monitor.