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. 20, 1977
Filed:
Mar. 11, 1976
Harry G Derks, Holland, MI (US);
Fleetwood Furniture Company, Zeeland, MI (US);
Abstract
A wireless electrical teaching system includes an instructor operated console with a plurality of lesson sources and means for transmitting the lesson source information to students, each having a transceiver unit which can be used to select one of the desired lesson sources. The console includes means for generating a unique student identification code transmitted on a common carrier frequency for all students but identifying an individual student for purposes of monitoring the student's progress during a lesson or for intercommunications between the instructor and a student. Each of the student transceivers include code detecting means responsive only to the unique code indentifying the student for generating a control signal which actuates a student transmitter for transmitting the student's voice back to the instructor during a monitoring mode of operation. The console also includes an intercom transmission circuit and a circuit for modifying the student code. The student's transceiver includes control means for automatically muting the lesson source when a modified code is received and tuning the student receiver to the intercom transmission circuit pemitting intercommunications between the instructor and the student at the same adjustable audio level as the lesson source selected by the student.