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:
Sep. 11, 1984
Filed:
Mar. 19, 1981
Kenneth Konetski, Bethel, CT (US);
David M Moon, New Milford, CT (US);
General DataComm Industries, Inc., Danbury, CT (US);
Abstract
A method and apparatus are described for automatically placing a modem in the answer or originate mode of operation without the use of a ring detector or a manually operated answer/originate mode selection switch. A timer and two latches are connected in the modem in such a fashion that when the modem is switched into operation it is in the originate mode. For a period of time determined by the timer, the modem looks for the receipt of an answer tone from a remotely located modem. If the answer tone is detected within this time, the modem remains in the originate mode and completes a handshaking sequence with the remote modem. If, however, the answer tone is not received, the modem automatically switches to the answer mode of operation and transmits an answer tone as part of the handshaking sequence.