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. 19, 2002
Filed:
Sep. 12, 2000
Hitachi, Ltd., Tokyo, JP;
Abstract
When there is a difference in the lengths of the passages among the parallel data wirings or a difference in the load capacitances inclusive of parasitic elements, a difference in the propagation time among the data becomes no longer negligible. At the time of transmitting data at high speeds in a short period, in particular, the setup time for receiving the data and the holding time are no longer maintained, and the data are not normally transmitted. In a data transmitter provided to address this problem, the receiver for receiving parallel data is provided with a simultaneous arrival judging circuit for comparing phases of part or whole bits of the received data, and with a timing adjusting mechanism for adjusting phases among the parallel bits at a point of receiving data in the receiver based on the judged results of the simultaneous arrival judging circuit, so that the data bits arrive simultaneously at the receiver. Even when there is a difference in the lengths of the paths or in the load capacities, therefore, the setup time for receiving data and the holding time are maintained.