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Class 340/870.1 - For radio sonde


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein the telemetering is used in a balloon-borne
No. of patents: 58
Last issue date: 08/23/2011


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NumberTitleIssue Date
6262672Reduced cost automatic meter reading system and method using locally communicating utility meters
A low cost and easy to assemble communicating utility meter provides selectable measurement, calibration, display, and communications means so as to be re-configurable based on several factors including; harmonic content of the power signal measured, LCD ...
07/17/2001
6184798Unidirectional telemetry system
A telemetry system comprises a plurality of beacons. Each beacon repetitively transmits a packet having a first predetermined time duration. The beacon transmits the packet a first predetermined number of iterations. A monitoring receiver observes for the...
02/06/2001
5694323Monitoring system with particular application to monitoring a cash-basis operation
The invention enables an operation to be monitored directly by a single person at a monitoring site. Certain predefined activities at one or more operating sites are automatically monitored. Information regarding these activities is conveyed to the monito...
12/02/1997
5612667In-vehicle barometric pressure detection system
In a vehicular warning system for sensing the approach of severe weather, a pressure sensor generates a first signal representative of the barometric pressure. A computer, coupled to the pressure sensor through the electrical system of the vehicle, genera...
03/18/1997
5608390Synchronous telemetry channel
The invention concerns pen-based computers, wherein a pen, or stylus, is positioned on a display of the computer, and produces a signal which allows the computer to detect the position of the stylus. The stylus produces a second signal, which is used as a...
03/04/1997
5402116Atmospheric pressure calibration systems and methods
Systems are provided to derive a value of barometric pressure at a defined location in the atmosphere at a computed geometric height. By using the geometric height in a look-up table of pressure/height values representing a standard atmospheric profile, a...
03/28/1995
5173690Passive ranging system utilizing range tone signals
A passive ranging system for determining the slant range from a ground station to a drifting radiosonde. In one embodiment, the ground station receives meteorological data ranging and internal temperature signals from the radiosonde. The data signals are ...
12/22/1992
5107261Passive ranging system for radiosondes
A passive ranging system for determining the slant range from a ground station to a drifting radiosonde. In one embodiment, the ground station receives meteorological data ranging and internal temperature signals from the radiosonde. The data signals are ...
04/21/1992
5055849Method and device for measuring velocity of target by utilizing doppler shift of electromagnetic radiation
A method for measuring the velocity (v) of a moving target (A). Radio signals are transmitted by means of radio transmitter-receiver arrangements of both the measuring station (B) and the target station (A) and received at the opposite stations (A,B), the...
10/08/1991
4704609General purpose sensor scanning apparatus
A scanning device is capable of monitoring a plurality of sensors each of which generate a voltage representative of the parameter being monitored. Multiplexers are provided for continually scanning the sensor channels and displaying the appropriate measu...
11/03/1987
4618776Light and weather resistance sensing system with a sensed signal transmission channel
A light and weather resistance testing apparatus (9) is provided with a sensor (1) located in the plane of the testing samples (14). The sensor (1) uses a transmitter (4) for wireless transmission of signals representing radiation received to an antenna (...
10/21/1986
4611206Apparatus for detecting quantities of rotary member
This invention relates to apparatus for detecting quantities of a rotary member, such as a field system, characterized in that channel identification signals and measurement data after analog-to-digital conversion are combined and then changed into a seri...
09/09/1986
4481514Microprocessor based radiosonde
A radiosonde for measuring atmospheric parameters, such as pressure, temperature, and humidity, includes a microprocessor interfaced with an analog-to-digital converter, which, in turn, receives sequential input signals representing the sensed atmospheric...
11/06/1984
4480334Radiosonde housing
A housing for electrical components and equipment sent aloft with a weather balloon to measure atmospheric parameters comprises a light-weight polystyrene case that serves as a shipping container and flight package. The housing also includes an air duct a...
10/30/1984
4295139Method for transmitting airport weather information
A method for providing real-time weather and other information about an airport to an aircraft. The method comprises the steps of generating a signal representing instantaneous weather information, determining a real-time weather information value from th...
10/13/1981
4112753Meteorological measuring apparatus
A radiosonde is conformable for use either as a disposable sonde in which the device will ascend vertically to a predetermined altitude and when the balloon from which it is suspended bursts at a maximum altitude the sonde will automatically flip over and...
09/12/1978
4074241Radiosonde circuitry for impedance measurement of an Al2 O3 absolute water vapor sensor
An improved circuit permits measurement of the impedance of an Al2 Ob.3 water vapor sensor used with conventional radiosonde telemetry systems. The circuit includes an oscillator, an output pulse shaper and a voltage regulator. The oscillator ...
02/14/1978
4025913Electrical field sensing and transmitting apparatus
A pair of conductive spherical shells are carried by a balloon or other means into an electrical field which induces equal and opposite charges on the shells. Rotation of the shells causes the charges to alternate. The alternating sinusoidal charge is app...
05/24/1977
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