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:
May. 06, 1980
Filed:
Dec. 02, 1977
Peter Vadasz, Budapest, HU;
Szabolcs Tokes, Budapest, HU;
Attila L Markus, Budapest, HU;
Karoly Balazs, Budapest, HU;
Endre Polya, Budapest, HU;
Andras Taller, Solymar, HU;
Andras Podmaniczky, Budapest, HU;
MTA Szamitastechnikai es Automatizalasi Kutato Intezet, Budapest, HU;
Abstract
A laser-operated apparatus for data and signaling recording makes use of a laser-beam source whose laser beam is directed at the Bragg angle into a tellurium dioxide monocrystal provided with an array of ultrasonic transducers, each of which is energized independently by at least one amplitude modulated very high frequency carrier. The individual transducer segments generate respective beams within the body of the crystal which, upon emerging, represent individual information channels which are separately controllable to provide the data and information recordal.