Radar navigational display apparatus with a plurality of sweep voltages

• US 3,114,908 A
• Filed: 05/19/1959
• Issued: 12/17/1963
• Est. Priority Date: 05/19/1959
• Status: Expired due to Term

• Current Assignee: William M. Hall
• Original Assignee: William M. Hall
• Inventors: Hall, William M.
• Application Number:
  US03/814,221
• Time in Patent Office: 1,673 Days
• US Class Current: 342/184
• CPC Class Codes: G01S 7/06 Cathode-ray tube displays or other two dimensional or three-dimensional displays

Claims

1. A RADAR DISPLAY SYSTEM FOR USE ON A MOVABLE VEHICLE COMPRISING:

A RADAR RECEIVER;

A MEMORY TUBE HAVING A STORAGE SURFACE ADAPTED TO BE SCANNED BY AN ELECTRON BEAM;

MEANS FOR IMPRESSING THE OUTPUT OF SAID RECEIVER UPON THE INPUT CIRCUIT OF SAID MEMORY TUBE;

A CATHODE RAY DISPLAY TUBE COUPLED TO THE OUTPUT CIRCUIT OF SAID MEMORY TUBE AND SAID RECEIVER;

AND MEANS FOR PROVIDING A PLURALITY OF SWEEP VOLTAGES IN SAID TUBES, SAID MEANS INCLUDING MEANS FOR SELECTIVELY APPLYING SAID SWEEP VOLTAGES TO SAID TUBES, A FIRST SWEEP VOLTAGE BEING EFFECTIVE TO CAUSE THE ORIGIN OF ITS SWEEP TO REMAIN CENTERED AND SHOW ALL OBJECTS AT THEIR RELATIVE BEARINGS, A SECOND SWEEP VOLTAGE BEING EFFECTIVE TO CAUSE THE ORIGIN OF ITS SWEEP TO MOVE IN ACCORDANCE WITH A HEADING AND SPEED OF SAID VEHICLE AND SHOW ALL OBJECTS AT THEIR RELATIVE BEARING, A THIRD SWEEP VOLTAGE BEING EFFECTIVE TO CAUSE THE ORIGIN OF ITS SWEEP TO REMAIN CENTERED AND SHOW ALL OBJECTS AT THEIR TRUE BEARING, AND A FOURTH SWEEP VOLTAGE BEING EFFECTIVE TO CAUSE THE ORIGIN OF ITS SWEEP TO MOVE IN ACCORDANCE WITH THE TRUE HEADING AND SPEED OF SAID VEHICLE AND SHOW ALL OBJECTS AT THEIR TRUE BEARING.