公开(公告)号：EP3022683A1

公开(公告)日：2016-05-25

申请号：EP14825944.3

申请日：2014-07-14

申请人： The Regents of the University of California

发明人： LU, Yipeng ,  HORSLEY, David ,  TANG, Hao-Yen ,  BOSER, Bernhard

IPC分类号： G06K9/00

CPC分类号： G06K9/0002

摘要： MEMS ultrasound fingerprint ID systems are provided. Aspects of the systems include the capabilty of detecting both epidermis and dermis fingerprint patterns in three dimensions. Also provided are methods of making and using the systems, as well as devices that include the systems.

公开(公告)号：EP3103191B1

公开(公告)日：2018-07-11

申请号：EP15746509.7

申请日：2015-02-05

申请人： The Regents of the University of California

发明人： BOSER, Bernhard ,  PRZYBYLA, Richard ,  TANG, Hao-Yen

IPC分类号： G01S7/52

CPC分类号： H03L7/093 ,  G01S7/52004 ,  H03H11/30 ,  H03K3/0231 ,  H03K5/2481 ,  H03L7/00

摘要： An apparatus and method for frequency tuning/tracking between an electrical subsystem and a mechanical transducer subsystem is presented. An electromechanical transducer generates acoustic pulses as it is driven by a transmit signal from an electrical subsystem. As the transmit signal goes inactive, the settling behavior of the transducer is registered from which the difference in frequency between the resonance of the electromechanical transducer and the transmit signal frequency is determined and utilized for locking the electrical subsystem to the mechanical transducer subsystem by either tuning operating frequency of the electrical subsystem, or the mechanical transducer, to keep them matched (locked).

公开(公告)号：EP3103191A1

公开(公告)日：2016-12-14

申请号：EP15746509.7

申请日：2015-02-05

申请人： The Regents of the University of California

发明人： BOSER, Bernhard ,  PRZYBYLA, Richard ,  TANG, Hao-Yen

IPC分类号： H03B5/30 ,  H03L7/06

CPC分类号： H03L7/093 ,  G01S7/52004 ,  H03H11/30 ,  H03K3/0231 ,  H03K5/2481 ,  H03L7/00

摘要： An apparatus and method for frequency tuning/tracking between an electrical subsystem and a mechanical transducer subsystem is presented. An electromechanical transducer generates acoustic pulses as it is driven by a transmit signal from an electrical subsystem. As the transmit signal goes inactive, the settling behavior of the transducer is registered from which the difference in frequency between the resonance of the electromechanical transducer and the transmit signal frequency is determined and utilized for locking the electrical subsystem to the mechanical transducer subsystem by either tuning operating frequency of the electrical subsystem, or the mechanical transducer, to keep them matched (locked).

摘要翻译： 用于电子系统和机械换能器子系统之间的频率调谐/跟踪的装置和方法。 机电换能器基因率的声脉冲，因为它是由发射信号从电气子系统驱动。 由于发射信号变为无效，换能器的沉降行为被登记从该机电换能器的谐振和发送信号的频率之间的频率差被确定性开采和用于由任一调谐电气子系统锁定到机械换能器子系统 操作该电气子系统，或机械换能器的频率，以保持它们匹配（锁定）。