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. 03, 1981
Filed:
Mar. 14, 1979
Norman R Buck, Sioux Falls, SD (US);
David J Hanson, Apple Valley, MN (US);
Vital Signs, Inc., Minnetonka, MN (US);
Abstract
The present invention is a telephone set for use in a telephone network in which a central switch gear is connected to incoming telephone lines and to a plurality of telephone stations. The switch gear serves to establish communication between selected stations and/or the incoming lines. The switch gear further has a memory and capability to receive command signals from the individual telephone set, and transmit confirmation signals to the set and perform selected functions in response to the command signals. The telephone itself has a plurality of manually actuated switches (51-56), each of which corresponds to a selected function. The set also has a programmable microprocessor (10) that automatically scans the switches, detects an actuated switch and generates a command signal corresponding to a selected function. The set has apparatus (440) for transmitting the command signals to the switch gear and apparatus (460-467) for receiving confirmation signals from the switch gear and transmitting the confirmation signals to the microprocessor. Finally, the telephone set has apparatus for transmitting and receiving voice communications.