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Topcon Positioning Systems Inc patents


Recent patent applications related to Topcon Positioning Systems Inc. Topcon Positioning Systems Inc is listed as an Agent/Assignee. Note: Topcon Positioning Systems Inc may have other listings under different names/spellings. We're not affiliated with Topcon Positioning Systems Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "T" | Topcon Positioning Systems Inc-related inventors


Methods and receivers for processing gnss signals

A method for receiving and processing satellite navigation signals includes receiving the navigation signals; converting the navigation signals into digital signals; providing a clock signal to all channels that process the digital signals; generating frequency division signals; selecting a channel frequency division signal from the frequency division signals based on... Topcon Positioning Systems Inc

Methods for modeling multipath reflections of gnss signals using a test installation and apparatuses for implementing test methods

A test installation for simulating multiple reflections of GNSS signals, the installation including a bottom screen that is reflective in the radio frequency spectrum; a top screen above the bottom screen, wherein the top screen is partly transparent in a radio frequency spectrum, and wherein the top screen is substantially... Topcon Positioning Systems Inc

Impedance helical antenna forming pi-shaped directional diagram

A quadrifilar helix antenna includes a cylindrical support extending along an antenna axis; a plurality of spiral conductors wrapped helically on the cylindrical support and along the antenna axis from a feed end to a remote end; a circular ground plane perpendicular to the antenna axis; and each of the... Topcon Positioning Systems Inc

Agricultural crop analysis drone

A method and system utilizing one or more agricultural drones in combination with agricultural equipment, e.g., an agricultural boom sprayer, to evaluate the crops being farmed, and to improve the real-time delivery and dispensing of liquid from the sprayer including monitoring and verifying that the liquid is being dispensed correctly... Topcon Positioning Systems Inc

Broadband helical antenna with cutoff pattern

A broadband quadruple helical circularly-polarized antenna for receiving circularly polarized GNSS signals includes a dielectric cylinder oriented along a vertical axis; four spiral conductors wrapped around the cylinder; the four spiral conductors divided into an upper longitudinal section and a lower longitudinal section; and inductors connecting corresponding spiral conductors of... Topcon Positioning Systems Inc

Three dimensional laser measuring system and method

A laser measuring system is provided by combining N-beams, angle based modulation and a laser receiver and laser transmitter configured with corner reflectors for signal shift measuring to facilitate full three dimensional positioning.... Topcon Positioning Systems Inc

Method of reducing inter-channel biases in glonass gnss receivers

The present invention discloses methods of accuracy improving for code measurements in GLONASS GNSS receivers. One component of error budget in code measurements of GLONASS receivers is caused by a difference in signal delays arising in the receiver analog Front End and antenna filter on different channel frequencies specific to... Topcon Positioning Systems Inc

Navigation receiver with an adaptive system for tracking carrier phases received from a constellation of navigation satellites

A system for estimating carrier phases of radio signals in a satellite navigation system receiver for coordinate determination includes a complex of reference signals (CRS), wherein, in each jth satellite channel, a digital reference signal RefSigj, represents an output phase and frequency-controlled oscillation of a corresponding numerically-controlled oscillator (NCOj) for... Topcon Positioning Systems Inc

Ground planes for reducing multipath reception by antennas

The antenna system can provide a positioning accuracy of +/−1 mm, an order of magnitude improvement over previous designs.... Topcon Positioning Systems Inc

Method and identification and compensation for inversion of input bit stream in ldpc decoding

Method of identification and compensation for inversion of the input bit stream when decoding LDPC codes includes obtaining a code word of the LDPC code from a demodulator output and writing the code word into a buffer memory, decoding the code word, calculating a syndrome for each iteration when decoding,... Topcon Positioning Systems Inc

Monitoring and control display system and method using multiple displays in a work environment

A method and system is provided for controlling a display in a machine operating in a work area whereby a plurality of views are displayed on a screen with each of the plurality of views corresponding to a plurality of functions and having one or more of the views independently... Topcon Positioning Systems Inc

Digital system for estimating signal non-energy parameters using a digital phase locked loop

A digital system of measuring parameters of the signal (phase, frequency and frequency derivative) received in additive mixture with Gaussian noise. The system is based on the use of variables of a PLL for calculating preliminary estimates of parameters and calculating the corrections for these estimates when there is a... Topcon Positioning Systems Inc

Digital system for estimating signal non-energy parameters using a digital phase locked loop

A digital system of measuring parameters of the signal (phase, frequency and frequency derivative) received in additive mixture with Gaussian noise. The system is based on the use of variables of a PLL for calculating preliminary estimates of parameters and calculating the corrections for these estimates when there is a... Topcon Positioning Systems Inc

Point cloud based surface construction

A method and apparatus for filtering point cloud data obtained using a plurality of sensors generates data representative of a surface and for use with a specific type of sensor. The filtering allows certain machines and sensor types to be used to acquire point cloud data and different sensor types... Topcon Positioning Systems Inc

Point cloud based surface construction

A method and apparatus for filtering point cloud data obtained using a plurality of sensors generates data representative of a surface and for use with a specific type of sensor. The filtering allows certain machines and sensor types to be used to acquire point cloud data and different sensor types... Topcon Positioning Systems Inc

Method and determining direction of the beginning of vehicle movement

A method of movement mode determination comprising measurement of vehicle's position and orientation and calculation of movement parameters, a compass on the vehicle, is azimuthally oriented along the prevailing and is mostly used movement direction (“forward” direction), a movement vector measurement unit, is used for measuring the azimuth of movement... Topcon Positioning Systems Inc

Method and device for measuring the current signal-to-noise ratio when decoding ldpc codes

A method for measuring a signal-to-noise ratio when decoding Low Density Parity Check (LDPC) codes is provided. The method includes receiving from an input of a demodulator an input code word with “strong” or “weak” solutions, decoding the input code word in a LDPC decoder using a predetermined dependence of... Topcon Positioning Systems Inc

Agricultural crop analysis drone

A method and system utilizing one or more agricultural drones in combination with agricultural equipment, e.g., an agricultural boom sprayer, to evaluate the crops being farmed, and to improve the real-time delivery and dispensing of liquid from the sprayer including monitoring and verifying that the liquid is being dispensed correctly... Topcon Positioning Systems Inc








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