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US 2022/0034976 A1Published application
Frequency detection on sensor integrated circuits
AssigneeAllegro MicroSystems, LLC
InventorJan Palascak
Life of this patent
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Abstract
According to an embodiment of the present disclosure, an integrated circuit includes: at least one sensing element configured to generate a sensed signal responsive to an electrical or magnetic phenomenon; an analog-to-digital converter configured to convert the sensed signal into a digital signal; and a digital processor configured to detect a target frequency of the electrical or magnetic phenomenon by iteratively applying a first real-valued coefficient to samples of the digital signal using real-valued arithmetic.
Claims22
An integrated circuit comprising:
- at least one sensing element configured to generate a sensed signal responsive to an electrical or magnetic phenomenon;
- an analog-to-digital converter configured to convert the sensed signal into a digital signal;
- and
- a digital processor configured to detect a target frequency of the electrical or magnetic phenomenon by iteratively applying a first real-valued coefficient to samples of the digital signal using real-valued arithmetic and using a second real-valued coefficient.
1 more element
A method comprising:
- receiving a sensed signal generated by a sensing element on an integrated circuit, the sensed signal responsive to an electrical or magnetic phenomenon;
- converting, by an analog-to-digital converter on the integrated circuit, the sensed signal into a digital signal;
- and
- detecting, by a digital processor on the integrated circuit, a target frequency of the electrical or magnetic phenomenon by iteratively applying a first real-valued coefficient to samples of the digital signal using real-valued arithmetic and using a second real-valued coefficient.
1 more element
Dependencies are inferred from the claim text.