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. 28, 1989
Filed:
Nov. 18, 1985
Andrew M Gorniak, Oxford, CT (US);
Michael J Fargano, Silverton, NJ (US);
General DataComm, Inc., Middlebury, CT (US);
Abstract
An intelligent synchronous modem and data communication systems utilizing the intelligent synchronous modem are provided. The modem comprises: at least one connector having a first and a second port for primary and secondary channels of communication with a host computer, wherein the primary communication channel is for communication of synchronous data and the secondary communication channel is for communication of asynchronous data; a microprocessor for recognizing and executing commands of the host computer, wherein the commands are in the form of asynchronous data received over the secondary communication channel and interface means for interfacing the microprocessor with telephone lines, wherein synchronous data received by the microprocessor is sent to the interface means. The data communication system of the invention comprises: a host computer including asynchronous and synchronous communication ports, wherein the host computer is arranged to send command mode data through the asynchronous port, and data mode data through the synchronous port; and intelligent synchronous modem as described above; at least one cable for connecting the synchronous port of the host computer with said synchronous port of the modem, and for connecting the asynchronous port of the host computer with the asynchronous port of the modem; and code/decode means for coding data received from the host computer into a synchronous format, and for decoding synchronous format data received from a second computer into data understandable by the host computer. Preferably, the modem of the invention is arranged to permit the conversion of the modem from an intelligent synchronous modem into an intelligent asynchronous modem through the use of data path logic circuitry which is controlled by the microprocessor of the modem.