公开(公告)号：EP3300389A1

公开(公告)日：2018-03-28

申请号：EP16190647.4

申请日：2016-09-26

Applicant: STMicroelectronics (Research & Development) Limited

Inventor： ALEXANDROPOULOS, Alexios

IPC: H04R3/12 ,  H04R29/00 ,  H04S7/00 ,  G01S17/36

CPC classification number: H04S7/303 ,  G01S17/36 ,  G01S17/48 ,  G01S17/66 ,  G01S17/89 ,  H04R3/12 ,  H04R29/002 ,  H04R29/008 ,  H04R2203/12 ,  H04R2499/15 ,  H04S3/002

Abstract: A loudspeaker system has a loudspeaker arrangement configured to generate N audio signals. A time-of-flight sensor arrangement is configured to detect a location of a user. A controller is configured to use information from said time-of-flight sensor arrangement about the location of said user to control said delay such that said N audio signals constructively interfere at said location of said user.

Abstract translation: 扬声器系统具有配置成生成N个音频信号的扬声器装置。 飞行时间传感器装置被配置为检测用户的位置。 控制器被配置成使用来自所述飞行时间传感器装置的关于所述用户的位置的信息来控制所述延迟，使得所述N个音频信号在所述用户的所述位置处建设性地干扰。

公开(公告)号：EP3588703A1

公开(公告)日：2020-01-01

申请号：EP18179161.7

申请日：2018-06-21

Applicant: STMicroelectronics (Research & Development) Limited

Inventor： LEE, Denise ,  STORM, Graeme ,  VENUGOPALAN NAIR JALAJAKUMARI, Aravind ,  ALEXANDROPOULOS, Alexios

IPC: H01S5/042 ,  H01S5/0683 ,  H01S5/183 ,  H02M3/00

Abstract: A driver circuit for a laser diode configured to pass a current, said circuit comprising: a charge-pump configured to generate an output boosted positive supply rail voltage; at least one switch configured to couple the output of the charge-pump to a terminal of the laser diode and to isolate the positive supply rail from the terminal of the laser diode when the charge-pump is enabled.