US 10,769,314 B2Granted

Fingerprint sensing integrated circuit device

AssigneeElan Microelectronics Corporation

InventorsChia-Hsing Lin, Yi-Hsin Tao, I-Hau Yeh

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Abstract

A fingerprint sensing integrated circuit device includes a fingerprint sensing device, an encryption unit, a multiplexer and a transmission interface. The encryption unit is connected to the fingerprint sensing device. The multiplexer has an output end, a first input end and a second input end. The first input end of the multiplexer is connected to the fingerprint sensing device. The second input end of the multiplexer is connected to the encryption unit. The multiplexer connects the output end to the second end according to a selection signal. The transmission interface is connected to the output end of the multiplexer.

Claims8

Dependent claims

A fingerprint sensing integrated circuit device, comprising:

a fingerprint sensing device configured to detect a fingerprint and generate fingerprint data;
an encryption unit, connected to the fingerprint sensing device and configured to encrypt the fingerprint data and output encrypted fingerprint data;
a multiplexer comprising an output end, a first input end and a second input end, the first input end connected to the fingerprint sensing device, the second input end connected to the encryption unit, wherein the multiplexer selectively outputs one of the fingerprint data and the encrypted fingerprint data, wherein the multiplexer connects the output end to the second input end according to a first selection signal in a normal operation mode, and wherein the multiplexer connects the output end to the first input end according to a second selection signal in a test operation mode;
and
a transmission interface, connected to the output end of the multiplexer.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/891,341Filed 7 Feb 2018
Priority: TW 106123898 A18 Jul 2017
Published: US 2019/0026534 A124 Jan 2019
Granted: 8 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06F 21/32
User authentication: using biometric data, e.g. fingerprints, iris scans or voiceprints
G06F 21/6209
Protecting access to data via a platform, e.g. using keys or access control rules: to a single file or object, e.g. in a secure envelope,…
G06F 21/85
Protecting input, output or interconnection devices: interconnection devices, e.g. bus-connected or in-line devices
G06V 40/13
Fingerprints or palmprints: sensors therefor

Family

US 2019/0026534 A1Pre-grant publication · published 24 Jan 2019
US 10,769,314 B2This patent

From the US filing history. Foreign family members aren’t listed.

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