Computing system

• US 3,150,372 A
• Filed: 06/23/1959
• Issued: 09/22/1964
• Est. Priority Date: 06/23/1959
• Status: Expired due to Term

• Current Assignee: Edward J. Groth Jr
• Original Assignee: Edward J. Groth Jr
• Inventors: Groth, Edward J. Jr.
• Application Number:
  US03/822,341
• Time in Patent Office: 1,918 Days
• US Class Current: 342/458
• CPC Class Codes: G01S 1/02 using radio waves G01S19/00 takes precedence
• CPC Class Codes: G01S 5/10 Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements , e.g. omega or decca systemsG01S5/12 takes precedence ; beacons and receivers cooperating therewith G01S1/306, G01S1/308
• CPC Class Codes: G01S 5/14 Determining absolute distances from a plurality of spaced points of known location

Claims

1. A COMPUTING SYSTEM FOR DETERMINING THE POSITION OF A STATION FROM TRANSMISSIONS RECEIVED FROM THREE KNOWN STATIONS HAVING TRANSMITTERS CONTROLLED BY THE SAME TIME REFERENCE MEANS AND WHICH TRANSMISSIONS ARE INDIVIDUALLY DERIVED BY RECEIVER MEANS AT THE STATION WHOSE POSITION IS TO BE LOCATED, SAID SYSTEM INCLUDING IN COMBINATION, FIRST, SECOND AND THIRD TIME INTERVAL DETECTORS, MEANS APPLYING THE TRANSMISSIONS FROM THE THREE KNOWN STATIONS INDIVIDUALLY TO SAID DETECTORS, A SECOND TIME REFERENCE MEANS COUPLED TO SAID DETECTORS AND APPLYING THE SAME REFERENCE THERETO, WHEREBY SAID DETECTORS PROVIDE OUTPUTS REPRESENTING THE TIME INTERVAL OF THE RECEIVED TRANSMISSIONS WITH RESPECT TO SAID SECOND TIME REFERENCE MEANS AND SUCH OUTPUTS FORM MEASURES OF THE RANGES FROM THE KNOWN STATIONS TO THE RECEIVING STATION, A TRIANGULATION COMPUTER COUPLED TO SAID FIRST AND SECOND DETECTORS FOR DETERMINING THE POSITION OF THE RECEIVING STATION FROM THE RANGE OUTPUTS OF SAID FIRST AND SECOND DETECTORS, MEANS COUPLED TO SAID TRIANGULATION COMPUTER AND TO SAID THIRD DETECTOR PROVIDING AN ERROR SIGNAL REPRESENTING THE ERROR IN THE DETERMINED POSITION, AND MEANS CONTROLLING SAID SECOND TIME REFERENCE MEANS IN RESPONSE TO SAID ERROR SIGNAL WHEREBY THE REFERENCE THEREFROM CHANGES TO REDUCE SAID ERROR SIGNAL.