Detection system, sensor and microcomputer
AssigneeRenesas Electronics Corporation
InventorsTadashi IMOKAWA, Norio Okada
Life of this patent
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Abstract
The present disclosure is aimed at correcting a frequency of a clock signal of a sensor based on a clock signal input from a microcomputer. A detection system includes a sensor and a microcomputer. The sensor is configured to be able to output sampling data generated by performing analog/digital conversion on an analog signal sampled based on a clock signal. The microcomputer generates a clock signal and outputs the clock signal to the sensor, and reads out the sampling data from the sensor. The sensor corrects the frequency of the clock signal based on the clock signal.
Claims20
A detection system comprising:
- a sensor configured to be able to output sampling data, which is a digital signal generated by performing analog/digital conversion on an analog signal indicating a detection result, the analog signal being sampled based on a first clock signal;
- and
- a microcomputer configured to generate a second clock signal and output the second clock signal to the sensor, and read out the sampling data from the sensor,
- wherein the sensor corrects a frequency of the first clock signal based on the second clock signal.
A sensor configured to be able to output sampling data, which is a digital signal generated by performing analog/digital conversion on an analog signal indicating a detection result, the analog signal being sampled based on a first clock signal, wherein
- the sensor corrects a frequency of the first clock signal based on a second clock signal generated by a microcomputer, and
- the sampling data is read out by the microcomputer.
A microcomputer configured to generate a second clock signal and output the second clock signal to a sensor configured to be able to output sampling data, which is a digital signal generated by performing analog/digital conversion on an analog signal indicating a detection result, the analog signal being sampled based on a first clock signal, the microcomputer being further configured to be able to read out the sampling data from the sensor,
- wherein a frequency of the first clock signal is corrected by the sensor based on the second clock signal.
Dependencies are inferred from the claim text.