公开(公告)号：US10118819B2

公开(公告)日：2018-11-06

申请号：US15410394

申请日：2017-01-19

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Alberto Cattani ,  Alessandro Gasparini ,  Federico Guanziroli ,  Pierangelo Confalonieri

IPC: B81B7/00 ,  B81B3/00 ,  B81B7/04 ,  H04R3/00 ,  H04R3/12 ,  H04R19/00

Abstract: A system for driving a MEMS array having a number of MEMS structures, each defining at least one row terminal and one column terminal, envisages: a number of row driving stages, each for supplying row-biasing signals to the row terminal of each MEMS structure associated to a respective row; a number of column driving stages, each for supplying column-biasing signals to the column terminal of each MEMS structure associated to a respective column; and a control unit, for supplying row-address signals to the row driving stages for generation of the row-biasing signals and for supplying column-address signals to the column driving stages for generation of the column-biasing signals. The control unit further supplies row-deactivation and/or column-deactivation signals to one or more of the row and column driving stages, for causing deactivation of one or more rows and/or columns of the MEMS array.

公开(公告)号：US09604842B2

公开(公告)日：2017-03-28

申请号：US14675230

申请日：2015-03-31

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Alberto Cattani ,  Alessandro Gasparini ,  Federico Guanziroli ,  Pierangelo Confalonieri

IPC: B81B7/04 ,  B81B7/00 ,  B81B3/00

CPC classification number: B81B7/008 ,  B81B3/00 ,  B81B7/04 ,  B81B2201/0257 ,  B81B2207/03 ,  B81B2207/053 ,  H04R3/007 ,  H04R3/12 ,  H04R19/005 ,  H04R2201/003

Abstract: A system for driving a MEMS array having a number of MEMS structures, each defining at least one row terminal and one column terminal, envisages: a number of row driving stages, each for supplying row-biasing signals to the row terminal of each MEMS structure associated to a respective row; a number of column driving stages, each for supplying column-biasing signals to the column terminal of each MEMS structure associated to a respective column; and a control unit, for supplying row-address signals to the row driving stages for generation of the row-biasing signals and for supplying column-address signals to the column driving stages for generation of the column-biasing signals. The control unit further supplies row-deactivation and/or column-deactivation signals to one or more of the row and column driving stages, for causing deactivation of one or more rows and/or columns of the MEMS array.