# US 9,753,049 B1 · Collinear system to determine its own displacement from its own motion > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,753,049 B1 - Document ID: US9753049B1 - Status: Granted - Kind: B1 - Application number: 14/477,945 - Filed: 2014-09-05 - Granted: 2017-09-05 - Earliest claimed: 2013-09-06 - Assignees: Non-Inertial Technology, LLC - Applicants: Non-Inertial Technology, LLC - Inventors: Val Parker - Web page: https://patentgrep.com/patent/US9753049B1 ## CPC - G01P 3/36: Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light (G01P3/68 takes precedence; gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams G01C19/64) - G01B 11/14: for measuring distance or clearance between spaced objects or spaced apertures (G01B11/26 takes precedence; rangefinders G01C3/00) - G01C 21/12: executed aboard the object being navigated; Dead reckoning - G01P 3/68: using optical means, i.e. using infrared, visible, or ultraviolet light (G01P3/80 takes precedence {; by reflection of waves G01S17/58}) - G01P: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B5/02, A61B8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L3/00; vehicle lighting systems adapted to indicate speed B60Q1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C23/00; measuring velocity of sound G01H; measuring velocity of light G01J7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V; {measuring or recording the speed of trains B61L23/00; speed indicators incorporated in motor vehicles B60K35/00; measuring frequency or phase G01R; traffic control G08G}) - G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) ## Abstract A light beam or other electromagnetic medium is emitted, guided, and received, all within a unitary system frame. The beam retains its characteristics regardless of position or motion of the frame in which it propagates. The beam retains its position in space relative to the detection of motion of the frame. Because the frame and the beam emitted within it are in the same frame of reference, characteristics of their motion are compared to determine parameters including system velocity and planetary velocity which is useful in navigation. Position, orientation, displacement, velocity of an object in motion, and changes in these parameters relative to previous values thereof, are derived from information provided within and directly by the motion of the unitary system itself. ## Claims ### Claim 1 A self-contained system to detect and determine, from within the system itself, parameters including position, orientation, and velocity of said system relative to previous data thereof, said system including: an electromagnetic emitter to emit electromagnetic energy along an optical axis; a forward electromagnetic receiver on said optical axis at a fixed distance forward of said emitter to receive electromagnetic energy therefrom; a rearward electromagnetic receiver on said optical axis at a fixed distance rearward of said emitter to receive electromagnetic energy therefrom; a forward light guide physically connected to said emitter and said forward electromagnetic receiver to carry electromagnetic energy along said optical axis from said emitter to said forward electromagnetic receiver; and a rearward light guide physically connected to said emitter and said rearward electromagnetic receiver to carry electromagnetic energy along said optical axis from said emitter to said rearward electromagnetic receiver, wherein elapsed times of electromagnetic energy travel from said emitter to said receivers are correlative to the velocity of said system. ### Claim 2 (depends on 1) A system as defined in claim 1 wherein the forward light guide, the rearward light guide, or each of the forward light guide and the rearward light guide includes an optical element on said optical axis between said emitter and said forward or rearward electromagnetic receiver, respectively, to alter characteristics of electromagnetic energy therein. ### Claim 3 (depends on 2) A system as defined in claim 2 wherein characteristics of said electromagnetic energy at said receivers are correlative to the velocity of said system. ### Claim 4 (depends on 2) A system as defined in claim 2 wherein the optical element included in the forward light guide, the rearward light guide, or each of the forward light guide and the rearward light guide extends travel time of the electromagnetic energy from said emitter to said forward or rearward electromagnetic receiver, respectively. ### Claim 5 (depends on 1) A system as defined in claim 1 wherein said optical axis is collinear with the direction of movement of said system. ### Claim 6 (depends on 1) A system as defined in claim 1 wherein said optical axis is directed at an angle from the direction of movement of said system. ### Claim 7 (depends on 1) A system as defined in claim 1, further including a data processing apparatus communicatively connected to the forward electromagnetic receiver and the rearward electromagnetic receiver and configured by a program to determine the velocity of said system based on the elapsed time of electromagnetic energy travel. ### Claim 8 (depends on 1) A system as defined in claim 1 further comprising a recombiner optically coupled to the forward electromagnetic receiver and the rearward electromagnetic receiver to recombine first electromagnetic energy and second electromagnetic energy for determination of the elapsed times, the first electromagnetic energy emitted by the emitter through the forward light guide to the forward electromagnetic receiver and then transmitted from the forward electromagnetic receiver to the recombiner, and the second electromagnetic energy emitted by the emitter through the rearward light guide to the rearward electromagnetic receiver and then transmitted from the rearward electromagnetic receiver to the recombiner. ### Claim 9 (depends on 1) A system as defined in claim 1 further comprising means to compare characteristic information from electromagnetic energy emitted by the emitter through the forward and rearward light guides to the forward and rearward electromagnetic receivers, respectively, to determine the elapsed times. ### Claim 10 (depends on 1) The system as defined in claim 1, wherein the forward light guide is at an angle with respect to the rearward light guide.