Flow speed detection circuit and associated chip and flow meter
AssigneeShenzhen Goodix Technology Co., Ltd.
InventorJung-Yu Chang
Life of this patent
Estimating the term…
Abstract
The present application discloses a flow speed detection circuit and a related chip and flow meter. The flow speed detection circuit includes: a transmitter, configured to provide a front signal and a main signal to a first transducer, wherein the first transducer transforms the front signal and the main signal into a transduced signal to a second transducer, the second transducer transforms the transduced signal into a receiving front signal and a receiving main signal to a receiver; and the receiver includes: a front signal detection circuit, configured to enable the main signal processing circuit after the receiving front signal; and the main signal processing circuit, configured to determine the flow speed based on the receiving main signal after being enabled.
Claims18
A flow speed detection circuit, coupled to a first transducer and a second transducer that are external to the flow speed detection circuit, wherein a distance between the first transducer and the second transducer is greater than zero, and a fluid having a flow speed sequentially flows past the first transducer and the second transducer, wherein the flow speed detection circuit comprises:
- a transmitter, coupled to the first transducer, and configured to provide a front signal and a main signal to the first transducer, wherein the first transducer transforms the front signal and the main signal into a transduced signal to the second transducer, and the second transducer transforms the transduced signal into a receiving front signal and a receiving main signal to a receiver;
- and
- the receiver, coupled to the second transducer, wherein the receiver comprises:
- a front signal detection circuit, configured to enable a main signal processing circuit after receiving the receiving front signal;
- and
- the main signal processing circuit, configured to determine the flow speed based on the receiving main signal after being enabled.
A chip, comprising:
- a flow speed detection circuit, coupled to a first transducer and a second transducer that are external to the flow speed detection circuit, wherein a distance between the first transducer and the second transducer is greater than zero, and a fluid having a flow speed sequentially flows past the first transducer and the second transducer, wherein the flow speed detection circuit comprises:
- a transmitter, coupled to the first transducer, and configured to provide a front signal and a main signal to the first transducer, wherein the first transducer transforms the front signal and the main signal into a transduced signal to the second transducer, and the second transducer transforms the transduced signal into a receiving front signal and a receiving main signal to a receiver;
- and
- the receiver, coupled to the second transducer, wherein the receiver comprises:
- a front signal detection circuit, configured to enable a main signal processing circuit after receiving the receiving front signal;
- and
- the main signal processing circuit, configured to determine the flow speed based on the receiving main signal after being enabled.
Dependencies are inferred from the claim text.