Patent ID: 9734418
Date: 2017-08-15
CPC Classifications: G06K

Claim:
1. A handheld electronic device, comprising: a camera module, configured to take pictures; a flashlight module, configured to generate at least a first light having a first spectrum and a second light having a second spectrum; and a processor, configured to: wherein the first reference signature has a first texture pattern, the second reference signature has a second texture pattern, and the first texture pattern is different from the second texture pattern, and wherein the identity authentication result is a positive match when the first biological characteristic image(s) substantially match the first reference signature, the second biological characteristic image(s) substantially match the second reference signature and an order of the first biological characteristic image(s) and the second biological characteristic image(s) obtained in the stream of biological characteristic images matches the order of the first reference signature and the second reference signature arranged in the sequence of reference signatures.