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:
Jul. 10, 1978
Jacob Tellerman, Bayside, NY (US);
Temposonics, Incorporated, Plainview, NY (US);
Abstract
An ultrasonic waveguide provides the encoding of magnetic keys on a keyboard. The magnetic keys couple their respective magnetic fields to an ultrasonic waveguide producing signals in a given time relation to permit encoding by depressed keys. Since the necessary information appears essentially on two wires, the system is basically a very reliable solid state system where all basic signal processing takes place in an 'integral' ultrasonic waveguide component. Potential simplicity, low cost construction, very high reliability, makes the application very suitable in keyboards for computers, data processing equipment, teletype equipment, computer time sharing stations, computerized reservation stations, display consoles, etc.