U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "

Mark Twain ; Christmas greetings, 1890

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 342/451 - By computer


Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter including the use of a device capable of
No. of patents: 322
Last issue date: 05/29/2012


              8    
NumberTitleIssue Date
4703444Systems for determining distances to and locations of features on a golf course
A golfer wishing to know the distance to a specified feature on a golf course, operates a portable interrogation unit, to enter a request for the distance to the location of the feature. Transmitters located to define a triangle encompassing a substantial...
10/27/1987
4698781Systems for determining distances to and locations of features on a golf course
A golfer wishing to know the distance to a specified feature on a golf course, such as the pin on the next green, operates a portable interrogation unit, which transmits an interrogation signal including a request for the distance to the location of the s...
10/06/1987
4672382Position measuring system
An improved position measuring system for determining a vehicle's position by receiving radio waves emitted from satellites is shown. The system adopts successive approximation using a convergent computation, in which initially estimated values are comput...
06/09/1987
4670757Bistatic object location method
A method for passively locating in range and azimuth both active, such as radar, and passive objects. The present invention uses existing direction finding equipment located on a platform, such as an aircraft or ship. At the platform, the invention includ...
06/02/1987
4622458Trajectory acquisition and monitoring system
The system includes a plurality of mobile optical-electronic data acquisition stations for individual training on particular mobile targets. These stations are linked through an information exchange and distribution system with a common center cooperating...
11/11/1986
4613866Three dimensional digitizer with electromagnetic coupling
A three dimensional digitizer is provided for determining and digitizing the coordinates of a three dimensional object. A hand-held stylus is used for tracing and determining points of interest on the surface of the object. A plurality of antennas for rad...
09/23/1986
4584584Method of measuring range and altitude
A method is disclosed to measure the range and altitude of a radio frequency signal jamming source carried on an airborne platform, signals from such source traveling to a pair of airborne observation points over a direct path and an indirect path, such m...
04/22/1986
4571684Map display system for vehicles
In a map display system for vehicles, spot coordinates are preliminarily stored which represent map forming spots and are provided with a coordinate origin of a specified spot, and display coordinates indicating map changing frames are also preliminarily ...
02/18/1986
4533918Pilot assistance device
A device working in conjunction with commercial-grade radar equipment for accurately pinpointing the location of a target or a topological feature with a precision greatly superior to the specified resolution of the radar equipment. This high precision is...
08/06/1985
4525717Position display instrument
A position display instrument for light spot display on a map of the position of vehicles, in particular aircraft or helicopters. The instrument comprises a flat map holder for accommodating and holding map sheets in an exact position, a light transmitter...
06/25/1985
4514810Navigator for vehicles
A vehicle navigator is disclosed, in which in response to a storage command signal generated by the turning on of a storage switch, the present position data of a vehicle corresponding to the present cursor position is stored in a memory. In response to a...
04/30/1985
4513377Vehicle-mounted navigator
In a vehicle-mounted navigator, a control unit reads map data from a memory unit and displays a corresponding road map on a CRT display unit. In response to signals from a distance sensor and a direction sensor, the present position in relation to the run...
04/23/1985
4511973Navigator for vehicles
In a navigator for use on a road vahicle, a memory is responsive to an external switch operation to preliminarily store any specific point on a map and a controller is responsive to the generation of a move command to move a cursor indicative of the prese...
04/16/1985
4504913Electronic navigator for automotive vehicles
An automotive navigator using a microcomputer displays a car position by a cursor on a road map displayed on a CRT screen. The navigator uses a cassette tape which stores a plurality of road map data and several kinds of reduced map data and expanded map ...
03/12/1985
4502123Navigation system for use with an automobile and reading unit for the system
In a navigation system arranged to display a road map in accordance with road map information from a cassette tape, and the present location of a motor vehicle equipped with the navigation system, a cassette tape distinguishing circuit is provided to a ca...
02/26/1985
4499468Range-only multistatic radar system
A range-only multistatic radar system has a plurality of radar stations located in a square grid pattern. Each radar station has a plurality of low power pulsed transmitters and receivers that operate on omnidirection whip antennae. Echo information recei...
02/12/1985
4484284Apparatus for visually indicating a current travel route of a vehicle
A visual travel route indicating apparatus for use in an automotive vehicle. The apparatus comprises a distance sensor for detecting a current distance of travel of the vehicle, a gas rate sensor for detecting a current azimuthal deviation generated durin...
11/20/1984
4470119Mobile navigator
A mobile navigator comprises a distance detector for generating a running distance signal, an azimuth detector for generating a progression azimuth detecting signal, a CRT display for indicating the current position of an automotive vehicle, a microcomput...
09/04/1984
4445120Radiosonde
An apparatus and method of measuring elevation of vehicles, such as radiodes, aircraft, or re-entry vehicles, is provided by identifying the specific geographic location of the vehicle in question and its difference from the geographic location of a refe...
04/24/1984
4442432Electronic navigation method and system
A method and system for navigation is disclosed comprising a plurality of transmitters, pairs of which are excited from a common frequency source, and a receiver responsive to and deployed within the wave fields created by the transmitters. The receiver i...
04/10/1984
4438438Method for displaying a battle situation
A method for displaying a battle situation under consideration and indication of the movement and position of friendly forces and with the position and motion behavior of targets being derived from angle and distance information, wherein: the display take...
03/20/1984
4428057Electronic chart system
An electronic chart system in which charts of the earth are stored in digital representation and communicated to the operator by a visual display. Through the use of a Loran-C receiver or the like, the system additionally plots the carrier's position on t...
01/24/1984
4398198Pulse-hyperbolic location system using three passive beacon measurements
A radar system is used to locate a vehicle's position on a predetermined X, Y grid, which could be latitude and longitude. Several paths of different lengths link the vehicle with a master station which transmits cyclically recurring pulses. Equipment on ...
08/09/1983
4396885Device applicable to direction finding for measuring the relative orientation of two bodies
A magnetic coupling device in which two assemblies of three coils are attached respectively to two mechanically independent bodies and form a radiator assembly and a sensor assembly. Each assembly defines a cartesian coordinate frame and is associated wit...
08/02/1983
4360876Cartographic indicator system
An indicator system satisfies multiple flight-mission requirements by providing an aircraft pilot with a visual display consisting of a movable map and navigational data. The map is stored in video form in a high-capacity compact mass memory consisting of...
11/23/1982
4352167Method of locating sound generation within enclosure
A number of sound detectors are provided on an external enclosure of a pressure vessel of a nuclear reactor. Output signals produced from the individual detectors are combined into a pattern in terms of time difference of the detector output signals relat...
09/28/1982
4350984Method of position fixing active sources utilizing differential doppler
A method of position fixing an active transmitter source. At least two passive receivers are utilized to position fix at least one active transmitter source by obtaining the difference of the doppler frequencies received at the passive receivers, the rece...
09/21/1982
4346384Remote object position and orientation locator
Apparatus for determining the position and orientation of a remote object relative to a reference coordinate frame is disclosed. A plurality of radiating means having orthogonal components are centered about the origin of the reference coordinate frame. M...
08/24/1982
4328548Locator for source of electromagnetic radiation having unknown structure or orientation
Apparatus for determining the position of a source of electromagnetic radiation relative to a remote object is disclosed. A multicomponent radiating means of unknown orientation is provided having components centered about the origin of the source. A plur...
05/04/1982
4315263Navigational systems using phase encoded angular coordinates
This invention generally relates to navigation systems which seek to position in real time with appropriate accuracy one or more mobile platforms in reference to a known system of coordinates by the emission of signals into a propagation medium and proces...
02/09/1982
4305077System for measuring current position and/or moving direction of vehicle
A reference station is provided at a fixed position. The station is adapted to transmit a scanning signal the transmitting direction of which is scanned in succession in different directions, a positional information signal representative of the position ...
12/08/1981
4281327Range corrector circuit for a bistatic passive radar display
The range corrector circuit uses two counters, one for the apparent range (Ra) and one for the correct range (Rc), and a random access memory (RAM). The Rc counter is continuously incremented linearly and the Ra...
07/28/1981
4275399Apparatus for determining the direction of arrival of applied energy
Apparatus is provided comprising two antennas generally oriented in non-parallel directions such that their effective apertures are different relative to received radiation, each antenna being individually connected to two integrated optica spectrum analy...
06/23/1981
4253150Pictorial navigation computer
An on-board computer for movable craft which will control various operational functions and provide the pilot with continuous navigational information. The computer continuously determines the position of the craft with respect to the earth's surface and ...
02/24/1981
4086632Area navigation system including a map display unit for establishing and modifying navigation routes
An area navigation system including a map display unit for entering navigation information to form or modify a programmed navigational route is disclosed. The map display unit is connected to an area navigation computer to supply a cartographic display of...
04/25/1978
4068237System for locating a radar transmitter
A system for obtaining the range and bearing of the location of any radar transmission with a minimum of received data (one pulse). Three receiving systems spaced apart from each other receive signals from the radiating source. Solving three simultaneous ...
01/10/1978
4067015System and method for tracking a signal source
A system for tracking moving signal sources is disclosed which is particularly adaptable for use in tracking stage performers, although a wide range of other uses is possible. A miniature transmitter is attached to the person or object to be tracked and e...
01/03/1978
4060809Tracking and position determination system
A method and apparatus for tracking and position determination includes generating carrier waves in transmitters; radiating said carrier waves; receiving said radiated carrier waves; imparting or simulating a motion, or motions, to radiators, reflectors o...
11/29/1977
4008470Passive ranging system
A passive ranging system for determining the range of a target radar by uizing the scan characteristics of the target radar. Receivers are placed on each of two aircraft flying in a specified formation. One aircraft relays detected pulse amplitude envelo...
02/15/1977
3982246General method of geometrical passive ranging
1. A passive ranging system for use by a fighter in determining the dista along the line of sight between the fighter and a target travelling at constant speed; comprising in combination: a search and track system operable to generate signals proportiona...
09/21/1976
              8    
 
Sign InRegister
Username  
Password   
forgot password?