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. 27, 1990
Filed:
Dec. 05, 1988
Robert A Curtis, Hudson, MA (US);
Digital Equipment Corporation, Maynard, MA (US);
Abstract
A pass-through and isolation switch for connecting a terminal to a computer and for disconnecting the terminal from the computer without disrupting any sessions which may have been opened on the computer by the terminal. The switch includes a first gate and a second gate for switching in and out balanced termination loads across corresponding input terminals of the switch depending on the state of a control signal. And it includes a third gate and a fourth gate for preventing or allowing the passage of signals between the terminal and the computer, also depending upon the state of the control signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile