公开(公告)号：US20040222074A1

公开(公告)日：2004-11-11

申请号：US10841180

申请日：2004-05-07

Applicant: STMicroelectronics S.A.

Inventor： Guillaume Bouche ,  Daniel Saias

IPC: H01H057/00

CPC classification number: H01H59/0009 ,  H01H61/02 ,  H01H2001/0063 ,  H01H2001/0068 ,  H01H2061/006

Abstract: A multiposition microswitch that includes a cavity, a mobile portion made of a deformable material extending above the cavity, at least three conductive tracks extending on the cavity bottom, and a contact pad on the lower surface of the mobile part. The mobile part is capable of deforming, under the action of a stressing mechanism, from an idle position where the contact pad is distant from the conductive tracks to an on position from among several distinct on positions. The contact pad electrically connects, in each distinct on position, at least two of the at least three conductive tracks, at least one of the conductive tracks connected to the contact pad in each distinct on position being different from the conductive tracks connected to the contact pad in the other distinct on positions.

Abstract translation: 一种多位微动开关，其包括空腔，由空腔上方延伸的可变形材料制成的移动部分，在空腔底部延伸的至少三个导电轨道，以及在所述移动部件的下表面上的接触垫。 移动部件能够在应力机构的作用下从接触垫远离导电轨道的空闲位置变形到几个不同的位置之间的打开位置。 接触焊盘在每个不同的位置上电连接至少三个导电轨道中的至少两个，至少一个导电轨道在每个不同的位置上连接到接触焊盘，其不同于连接到触点的导电轨迹 垫在另一个不同的位置。

公开(公告)号：US20040257480A1

公开(公告)日：2004-12-23

申请号：US10814621

申请日：2004-03-31

Applicant: STMicroelectronics S.A.

Inventor： Pierre Busson ,  Daniel Saias ,  Frederic Paillardet ,  Franck Montaudon

IPC: H04N005/50

CPC classification number: H04N5/4446 ,  H03D3/007 ,  H03D7/161 ,  H04L2027/0016 ,  H04L2027/0024 ,  H04N5/4401 ,  H04N5/455 ,  H04N21/426 ,  H04N21/6112

Abstract: A dual-conversion tuner firstly upconverts so as to place itself outside the receive band and then downconverts with zero intermediate frequency. A filter of the surface acoustic wave type is disposed between the two frequency transposition stages of the tuner. After baseband filtering, the signals are digitized then processed in a digital block comprising a channel decoding module. With the exception of the surface acoustic wave filter, the components are entirely embodied in integrated fashion.

Abstract translation: 首先将双转换调谐器上变频，将其自身置于接收频带外，然后以零中频下变频。 表面声波型滤波器设置在调谐器的两个频率转置级之间。 在基带滤波之后，信号被数字化，然后在包括信道解码模块的数字块中进行处理。 除了表面声波滤波器之外，组件完全以整体方式体现。