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:
Apr. 22, 1986
Filed:
Mar. 30, 1984
Nicholas J Carter, Shelton, CT (US);
Francisco A Middleton, Newtown, CT (US);
Santanu Das, Shelton, CT (US);
ITT Corporation, New York, NY (US);
Abstract
A combined telecommunications and data communications system includes a digital switching network for allowing connections between one or more of a plurality of ports. The system described includes a tone module at one port which module includes a tone bus which can be connected to a plurality of other ports each associated with a terminal module. In the system a poll originating module is coupled to a given port of the switching network. The poll originating module can initiate a broadcast mode by transmitting a polling signal. Upon implementing the broadcast mode the switching network connects the polling originator module to the tone module. The tone module then transmits the polling signal during the broadcast mode to a plurality of ports. The polling request is decoded at each of the ports by means of a terminal interface module. In this manner each port will recognize a polling request and contain separate circuitry to respond to such a request through the switching network.