US 11,681,888 B2
Sensor device, method of forming a sensor device, chip card and method of forming a chip card
Frank Pueschner, Kelheim (DE); Walther Pachler, Graz (AT); Josef Gruber, Sankt Ruprecht an der Raab (AT); Jens Pohl, Bernhardswald (DE); Stephan Rampetzreiter, Graz (AT); Thomas Spoettl, Mintraching (DE); and Peter Stampka, Burglengenfeld (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Oct. 21, 2020, as Appl. No. 17/75,730.
Claims priority of application No. 10 2019 128 464.3 (DE), filed on Oct. 22, 2019.
Prior Publication US 2021/0117743 A1, Apr. 22, 2021
Int. Cl. G06K 19/07 (2006.01); G06K 19/077 (2006.01); G06V 40/13 (2022.01)
CPC G06K 19/0718 (2013.01) [G06K 19/07701 (2013.01); G06K 19/07756 (2013.01); G06K 19/07775 (2013.01); G06V 40/1306 (2022.01)] 15 Claims
OG exemplary drawing
 
1. A sensor device, comprising:
a first chip configured as a fingerprint sensor;
an antenna coupled with the fingerprint sensor for inductive coupling of the fingerprint sensor with a booster antenna; and
a second chip;
wherein the second chip is configured for contactless communication with an apparatus outside the sensor device, wherein the antenna is connected in an electrically conducting manner to the second chip;
wherein the second chip is a security controller, in which a reference fingerprint for user authentication is stored;
wherein the first chip is configured to detect with the fingerprint sensor a user fingerprint and to send a signal representing the detected user fingerprint to the second chip; and wherein the second chip is configured to authenticate the user based on the detected user fingerprint and the reference fingerprint.