公开(公告)号：EP2598255A2

公开(公告)日：2013-06-05

申请号：EP11744096.6

申请日：2011-07-12

申请人： Koninklijke Philips Electronics N.V.

发明人： KLEE, Mareike ,  MAUCZOK, Ruediger ,  BOOTS, Henri Marie Joseph ,  DE WILD, Nico Maris Adriaan ,  SREEDHARAN NAIR, Biju Kumar ,  WUNNICKE, Olaf ,  PASVEER, Willem Franke ,  VAN DE LAGEMAAT, Dirk ,  DIRKSEN, Peter

IPC分类号： B06B1/06

CPC分类号： H03H3/02 ,  B06B1/06 ,  B06B1/0622 ,  B06B1/0688 ,  H03H9/172

摘要： The present invention relates to a transducer (11) comprising - a membrane (31) configured to change shape in response to a force, the membrane (31) having a first major surface (16) and a second major surface (17), - a piezoelectric layer (18) formed over the first major surface (16) of the membrane (31), the piezoelectric layer (18) having an active portion, - first and second electrodes (19) in contact with the piezoelectric layer (18), wherein an electric field between the first and second electrodes (19) determines the mechanical movement of the piezoelectric layer (18), -support structures (40) at the second major surface (17) of the membrane (15) on adjacent sides of the active portion of the piezoelectric layer (18), at least part of the support structures (40) forming walls perpendicular, or at least not parallel, to the second major surface (17) of the membrane (31), so as to form a trench (41) of any shape underlying the active portion, so that an ultrasound transducer is obtained with a high output pressure at the support side than at the opposite side. The invention also relates to a method of forming such a transducer, and an array comprising at least one transducer of the like.

公开(公告)号：EP2404360A2

公开(公告)日：2012-01-11

申请号：EP10707133.4

申请日：2010-02-23

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： ERDMANN, Bozena ,  LELKENS, Armand ,  PASVEER, Willem ,  WAFFENSCHMIDT, Eberhard ,  HILGERS, Achim ,  SREEDHARAN NAIR, Biju Kumar

IPC分类号： H02J17/00

摘要： System for configuring and powering a wireless batteryless device, the system comprising: - a wireless batteryless device (A) comprising : - a built-in harvester (12) for harvesting energy from a first energy source, for example ambient energy, - means for communicating wirelessly, - and an external device (B) comprising : - a second power source (16), - means (17) for converting energy supplied by the second power source into energy suitable for being harvested in the harvester of the batteryless device, - means (18) for wirelessly supplying the batteryless device with the converted energy via the built-in harvester, and - means for communicating with the batteryless device. The invention also relates to an external device therefore, and a method for configuring and powering a batteryless device.

摘要翻译： 系统配置以及无线无电池设备，所述系统包括供电： - 无线电池设备（A），包括： - 一个内置的收集器（12），用于收集能量从第一能量源，例如环境能量的装置， - 用于 无线通信 - 和外部装置（B）包括： - 第二电源（16）， - 用于把由第二电源供给的能量转化为能量适于在电池设备的收获机正在收获装置（17）， - 装置（18），用于经由转换的能量无线供给电池设备内置的收割机，以及 - 装置，用于与所述电池设备通信。 本发明因此涉及到外部设备。因此，和用于配置和无电池装置供电的方法。

公开(公告)号：EP2269092A1

公开(公告)日：2011-01-05

申请号：EP09732632.6

申请日：2009-04-09

申请人： Koninklijke Philips Electronics N.V.

发明人： FILIPPI, Alessio ,  SREEDHARAN NAIR, Biju Kumar ,  PASVEER, Willem Franke ,  VAN BERKEL, Teun Martinus Johannes

IPC分类号： G01S13/00

CPC分类号： G01S13/003 ,  G01S7/354 ,  G01S13/886 ,  H05B37/0227 ,  Y02B20/44

摘要： A passive detector (10) includes a receiver (11) configured to collect passive radiation (12) in an environment, where detailed information about a portion of the passive radiation is estimated as a baseline of the passive energy. The passive energy is generated by a passive source unrelated to the detector. A monitor (24) is configured to measure a fluctuation in the baseline. A decision module (34) is coupled to the monitor to determine whether the fluctuation represents a presence or motion in the environment. Detection methods are also disclosed.

摘要翻译： 被动检测器（10）包括被配置为在环境中收集被动辐射（12）的接收器（11），其中关于被动辐射的一部分的详细信息被估计为被动能量的基线。 无源能量由与检测器无关的被动源产生。 监视器（24）被配置为测量基线中的波动。 决定模块（34）耦合到监视器以确定波动是否表示环境中的存在或运动。 还公开了检测方法。