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US 8,136,987 B2Granted
Ratio meter for temperature sensor
AssigneeIntel Corporation
InventorsKosta Luria, Joseph Shor, Dadashev Oleg
Life of this patent
Estimating the term…
Abstract
In some embodiments, a new DTS implementation, which employs the conventional Vbe/ΔVbe temperature dependent principles but substitutes a voltage-to-frequency (V/F) based ratio meter for the DAC based approach. This new approach can result in a more simplified circuit that may be more variation tolerant and can require less power and area.
Claims20
A chip comprising:
- at least one voltage-to-frequency (V/F) converter to receive first and second parameter dependent signals;
- and
- a circuit to yield a number or count corresponding to a value for the parameter, the value corresponding to the first and second parameter dependent signals.
A circuit comprising:
- a first counter to count a ratio value;
- and
- a second counter comprising a stop count bit to stop the first counter at a constant count of the second counter.
A computer system, comprising:
- a processor having at least one temperature sensor having an oscillator based ratio meter to provide a digital value corresponding to a temperature within the processor.
Dependencies are inferred from the claim text.