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. 18, 1997
Filed:
Dec. 27, 1996
Hiroyuki Tanaka, Kawasaki, JP;
Masahide Kanegae, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An apparatus for connecting and disconnecting a plurality of drives connected in parallel with respect to a data transmission line in a magnetic disk system, etc., to and from the data transmission line under an active state, has data communication terminals provided for each of the drives, so as to be connected to the data transmission line and disconnected from the data transmission line; and units for fixing the levels at the data communication terminals when the data communication terminals are open. Preferably, the units for fixing the levels includes resistors connected between the data communication terminals and a ground, the resistance of each of the resistors being determined not to disturb an impedance of the data transmission line.