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:
Aug. 22, 1989
Filed:
Nov. 17, 1987
Paul B Gerhart, Horsham, PA (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
In order to prevent `jabber`, the uncontrolled transmission of messages on a communication channel, an antijabber timing unit is frequently used to determine whether a message on the communication channel exceeds the maximum permitted length of time. The present invention provides testing apparatus to determine when the antijabber timing unit is functioning accurately. In addition, protection is provided so that the testing apparatus does not compromise the function of the antijabber timing unit during subsequent message transmission. The antijabber timing unit is also used as part of the enable function for the transmission of messages over a channel to prevent the failure of a single component from resulting in inadvertent transmission of information.