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. 26, 1999
Filed:
Dec. 06, 1996
Shinichi Katakura, Tokyo, JP;
Akira Nagumo, Tokyo, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
Data are transmitted from a control device through an interface cable to a set of driver devices in synchronization with an external clock signal, or a complementary pair of external clock signals. The signal line or lines carrying the external clock signal or signals are terminated at both ends by resistors with resistance values matching the characteristic impedance of the interface cable. Each driver device has a comparator that compares the external clock signal with a regulated reference voltage, or compares the two complementary external clock signals with each other, and thereby generates an internal clock signal. The driver devices receive the data in synchronization with these internal clock signals.