AI Patent Summary

Patent Document
#US5899570A
United States Patent 115
Abstract
A time-based digital temperature sensing system has a first oscillator which is temperature sensitive. The first oscillator has a temperature coefficient which allows the first oscillator to generate an output signal which varies linearly as a function of temperature. A second oscillator is provided and is used to generates a reference clock signal. The outputs from the first and the second oscillator are coupled to a timer. The timer has a clock input coupled to an output of the second oscillator and an enable input coupled to an output of the first oscillator. From these input signals, the timer generates a number indicative of a length of time the timer is enabled by the first oscillator. The number is proportional to a current temperature of a material that is being monitored by the temperature sensing system.
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CPC G01K7/00
Confidence: High
Official Definition
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
PHYSICS > MEASURING; TESTING > MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
AI Technology & Product Mapping
Technology Domain:
Thermal Sensing & Instrumentation
Product Category:
Digital Temperature Sensors & Measurement ICs
Plain-English Summary:
Measuring temperature using electrical or magnetic components that change directly with heat.
Relation to Claims:
The patent relates to an electric temperature sensing system utilizing a temperature-sensitive oscillator.
CPC G01K7/16
Confidence: Medium
Official Definition
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
PHYSICS > MEASURING; TESTING > MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
AI Technology & Product Mapping
Technology Domain:
Thermal Sensing & Instrumentation
Product Category:
Resistive Temperature Sensors
Plain-English Summary:
Measuring temperature using resistors whose electrical resistance varies with temperature.
Relation to Claims:
The patent's temperature-sensitive oscillator functions via circuit elements whose characteristics vary with temperature.
CPC G01K7/18
Confidence: Medium
Official Definition
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
PHYSICS > MEASURING; TESTING > MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
AI Technology & Product Mapping
Technology Domain:
Thermal Sensing & Instrumentation
Product Category:
Precision Temperature Probes & Sensors
Plain-English Summary:
Measuring temperature using linear resistance elements, such as platinum resistance thermometers.
Relation to Claims:
The patent mentions a first oscillator generating an output signal that varies linearly as a function of temperature.
CPC G01K7/20
Confidence: Medium
Official Definition
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
PHYSICS > MEASURING; TESTING > MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
AI Technology & Product Mapping
Technology Domain:
Analog & Mixed-Signal Circuitry
Product Category:
Temperature Sensor Conditioning Circuits
Plain-English Summary:
Measuring temperature using linear resistance elements connected within specialized circuits like bridge circuits.
Relation to Claims:
The system utilizes specific circuitry coupling oscillators to timers for temperature conversion.
CPC G01K7/203
Confidence: High
Official Definition
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit in an oscillator circuit
PHYSICS > MEASURING; TESTING > MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
AI Technology & Product Mapping
Technology Domain:
Time-Based Sensor Architectures
Product Category:
Time-to-Digital Temperature Sensors
Plain-English Summary:
Measuring temperature using linear resistance elements integrated directly into an oscillator circuit.
Relation to Claims:
Directly maps to the patent's core disclosure of a time-based digital temperature sensing system using a temperature-sensitive first oscillator coupled with a reference oscillator and timer.