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:
Dec. 23, 1980
Filed:
Sep. 16, 1977
Fritz Giebler, Munich, DE;
Edmund Gensthaler, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A key-operated arrangement for teleprinters as a keyboard for encoding characters and data arranged in matrix fashion in rows and columns. Along with the keyboard an addressable fixed-value store is provided. A scanning device periodically scans the keyboard and fixed-value store and produces a coded character from the store when a signal is present which is provided by operation of a contact on the keyboard. At least one additional matrix column is arranged on the keyboard for special functions. A mode register connected via a column selector to the additional matrix column stores signals arriving from the scanning device and converts them into control signals which appear in parallel at outputs of the mode register.