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. 10, 1987
Filed:
Dec. 24, 1985
James B Black, Phoenix, AZ (US);
GTE Communications Systems, Phoenix, AZ (US);
Abstract
An interface circuit for transmitting data messages between a CENTREX equipped central office exchange and a remotely located attendant console. The interface circuit includes control and sense decoding circuitry arranged to output control signals to the interface circuit and transfer control signals and data messages to the CENTREX. Sequential memory connected to the control and sense decoding circuitry receives and stores from the CENTREX data messages responsive to an enabling signal from the CENTREX. The control and sense decoding circuitry signals a controller connected to the sequential memory that data messages have been loaded in the sequential memory. The controller then transfers the data messages out of the sequential memory and processes the received data messages, storing the data messages in a temporary memory. The controller transfers the data messages from the temporary memory to sending circuitry which transmits the data messages to the attendant console.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile