Ultrasonic data converter

• US 3,134,099 A
• Filed: 12/21/1962
• Issued: 05/19/1964
• Est. Priority Date: 12/21/1962
• Status: Expired due to Term

• Current Assignee: Paul W. Woo
• Original Assignee: Paul W. Woo
• Inventors: Woo, Paul W.
• Application Number:
  US04/246,557
• Time in Patent Office: 515 Days
• US Class Current: 341/5
• CPC Class Codes: G06F 3/0433 in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member
• CPC Class Codes: G06K 15/22 using plotters
• CPC Class Codes: G08C 21/00 Systems for transmitting the position of an object with respect to a predetermined reference system, e.g. tele-autographic system
• CPC Class Codes: H03M 1/00 Analogue/digital conversion; Digital/analogue conversion conversion of analogue values to or from differential modulation H03M3/00
• CPC Class Codes: H03M 1/22 pattern-reading type
• CPC Class Codes: Y10S 367/907 Coordinate determination

Claims

1. APPARATUS FOR CONVERTING GRAPHICAL INFORMATION INTO DIGITAL INFORMATION COMPRISING:

A SHEET OF ISOTROPIC MATERIAL;

DRIVER MEANS COUPLED TO SAID SHEET AND ADAPTED TO CREATE TRAVELING MECHANICAL DISTURBANCES IN SAID SHEET;

SENSING MEANS PLACED IN CONTACT WITH SAID SHEET AND ADAPTED TO SENSE SAID TRAVELING MECHANICAL DISTURBANCES, SAID SENSING MEANS INCLUDING MEANS FOR EMITTING A SIGNAL INDICATIVE OF THE SENSING OF A MECHANICAL DISTURBANCE IN SAID SHEET;

AND ELECTRONIC DIGITIZING MEANS CONNECTED TO SAID DRIVER MEANS AND SAID SENSING MEANS FOR DIGITALLY REPRESENTING THE ELAPSED TIME INTERVAL BETWEEN THE CREATION OF SAID MECHANICAL DISTURBANCES BY SAID DRIVER MEANS AND THE SENSING OF SAID MECHANICAL DISTURBANCES BY SAID SENSING MEANS.