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US 11,239,796 B2Granted
Drift compensation
AssigneesSTMicroelectronics S.r.l., STMicroelectronics (Grenoble 2) SAS
InventorsDaniele Mangano, Benoit Marchand, Santo Leotta, Hamilton Emmanuel Querino De Carvalho
Life of this patent
Estimating the term…
Abstract
An embodiment of the present disclosure relates to a device comprising an electronic circuit; an oscillation circuit comprising a quartz crystal, configured to provide a clock signal to the electronic circuit; and a heater configured to increase the temperature of the quartz crystal.
Claims20
A device comprising:
- an electronic circuit;
- an oscillation circuit comprising a quartz crystal, and configured to provide a clock signal to the electronic circuit;
- a heater configured to increase a temperature of the quartz crystal;
- an antenna;
- and
- a control circuit configured to:
- enable a power amplifier of the electronic circuit;
- and
- after a delay with respect to an instant from which the power amplifier is enabled, enable a passage of signals from the electronic circuit to the antenna.
6 more elements
A method of controlling a device comprising an electronic circuit, the method comprising:
- preheating, with a heater, a quartz crystal of an oscillation circuit providing a clock signal to the electronic circuit;
- and
- enabling an emission of signals as a temperature of the quartz crystal decreases, the enabling comprising:
- enabling a power amplifier of the electronic circuit;
- and
- after a delay with respect to an instant from which the power amplifier is enabled, enabling a passage of signals from the electronic circuit to an antenna.
3 more elements
A method of controlling a device comprising an electronic circuit, the method comprising:
- preheating, with a heater, a quartz crystal of an oscillation circuit providing a clock signal to the electronic circuit;
- enabling an emission of signals as a temperature of the quartz crystal decreases;
- and
- controlling capacitances of first and second variable capacitors coupled in series with the quartz crystal to be above 50% of maximum capacitances of the first and second variable capacitors, respectively.
1 more element
Dependencies are inferred from the claim text.