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. 14, 1989
Filed:
Jun. 29, 1987
Donald J Girard, Cambridge, OH (US);
NCR Corporation, Dayton, OH (US);
Abstract
A multiple mode switching device is disclosed which is capable of interconnecting either one of a first or second apparatus, such as a controller, to a third apparatus such as a modem or a business terminal, and which is capable of operating in a first mode in which either the first apparatus or the second apparatus can be manually selected for connection to the third apparatus; in a second mode in which either the first apparatus or the second apparatus can request connection to the third apparatus and will retain such connection as long as needed; and in a third mode in which a selected one of the first apparatus and the second apparatus has priority and will always obtain and retain connection to the third apparatus when needed. First and second manually controlled switches are provided for selecting the mode and the desired apparatus in the manual mode. Logic circuitry is provided for controlling the operation of the switching device in the second and third modes of operation.