| 摘要 |
The present invention provides an electric field-type fingerprint identification apparatus and a state control method and a prosthesis identification method thereof. The electric field-type fingerprint identification apparatus comprises a signal collection module and a signal processing method. When a measurement state signal processing unit is electrically connected to a signal collection unit, a to-be-measured state signal processing unit is at least electrically connected to at least one signal collection unit peripheral to a measurement state signal collection unit. Charging and discharging processes of a sensing capacitor that is electrically connected to the measurement state signal processing unit and the to-be-measured state signal processing unit are coordinated to suppress charge and discharge capacity of a parasitic capacitance between the measurement state signal collection unit and the to-be-measured state signal collection unit. The present invention is simple in structure and saves component costs; a problem of mutual interference between signal collection units is avoided; and the fingerprint identification apparatus can apply to various application requirements. The present invention can also identify a fingerprint of a prosthesis finger, improving security and reliability of the fingerprint identification apparatus. |
