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:
Jun. 07, 1988
Filed:
Oct. 09, 1987
Daniel Norwich, Tampa, FL (US);
Telecredit, Inc., Los Angeles, CA (US);
Abstract
A system incorporating a cluster of several telephone stations or terminals to interface with one or more frequently called remote data stations for economy of dial-up connection in accommodating communication with multiple terminals of the cluster during a single call to a remote station. With a call from one terminal to a remote data station, a transmit-receive unit interfaces the cluster with the data station setting the terminals in the cluster in a polling sequence to accommodate additional communications. The system preserves an 'off-hook' state polling the individual terminals in the cluster to accommodate further communication from the cluster terminals to the central data station. Polling is facilitated by a cluster counter in the transmit-receive unit coordinated with logic indicating the state of each terminal in the cluster.