Fingerprint sensing device and operation method thereof
AssigneeEgis Technology Inc.
InventorsYao-Li Huang, Yu-Hsuan Lin, Chung-Yi Wang
Life of this patent
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Abstract
A fingerprint sensing device and an operation method thereof are provided. The fingerprint sensing device includes a driver integrated chip and a fingerprint sensor. The driver integrated chip is coupled to a host processor. The fingerprint sensor is coupled to the driver integrated chip and the host processor. The fingerprint sensor obtains a fingerprint image during a period when the host processor is in the sleep mode. The driver integrated chip performs a fingerprint verification on the fingerprint image, and the driver integrated chip determines to wake up the host processor according to whether the fingerprint image passes the fingerprint verification.
Claims23
A fingerprint sensing device, comprising:
- a driver integrated chip, coupled to a host processor;
- and
- a fingerprint sensor, coupled to the driver integrated chip and the host processor, and configured to obtain a fingerprint image during a period when the host processor is in a sleep mode,
- wherein the driver integrated chip performs a fingerprint verification on the fingerprint image and the driver integrated chip determines whether to wake up the host processor according to whether the fingerprint image passes a fingerprint verification,
- wherein when the host processor is not fully awakened, the driver integrated chip drives a display panel to display a standby screen, and when the host processor is fully awakened, the driver integrated chip switches the standby screen to an operating screen.
An operation method of fingerprint sensing device, wherein the fingerprint sensing device comprises a fingerprint sensor and a driver integrated chip, wherein the operation method comprises:
- obtaining, through the fingerprint sensor, a fingerprint image during a period when a host processor is in a sleep mode;
- performing, through the driver integrated chip, a fingerprint verification on the fingerprint image;
- determining, through the driver integrated chip, whether to wake up the host processor according to whether the fingerprint image passes the fingerprint verification,
- when the host processor is not fully awakened, driving, through the driver integrated chip, a display panel to display a standby screen;
- and
- when the host processor is fully awakened, switching, through the driver integrated chip, the standby screen to an operating screen.
Dependencies are inferred from the claim text.