公开(公告)号：US11882404B2

公开(公告)日：2024-01-23

申请号：US17605809

申请日：2020-04-22

Applicant: ams AG

Inventor： Martin Muenzer ,  Peter Trattler

IPC: H04R23/00 ,  G10K15/04 ,  H04R1/02 ,  G01J1/42

CPC classification number: H04R23/008 ,  G10K15/046 ,  H04R1/028 ,  G01J1/4204 ,  H04R2499/11 ,  H04R2499/15

Abstract: A mobile communications device that does not have a physical opening on the screen for audio is operable to transmit a signal to which a photoacoustic effect can be employed by interaction with water vapor in an ear of a user so as to generate audio in the ear or the immediate vicinity of the user's ear. Related methods, apparatuses, systems, techniques and articles are also described.

公开(公告)号：US20210135023A1

公开(公告)日：2021-05-06

申请号：US16638625

申请日：2018-07-27

Applicant: ams AG

Inventor： Martin MÜNZER ,  Peter Trattler

IPC: H01L31/0216 ,  H01L31/107 ,  G01S7/486

Abstract: The semiconductor device comprises an emitter of electromagnetic radiation, a photodetector enabling a detection of electromagnetic radiation of a specific wavelength, a filter having a passband including the specific wavelength, the filter being arranged on the photodetector, the emitter and/or the filter being electrically tunable to the specific wavelength, and a circuit configured to determine a time elapsed between emission and reception of a signal that is emitted by the emitter and then received by the photodetector.

公开(公告)号：US09148914B2

公开(公告)日：2015-09-29

申请号：US13874351

申请日：2013-04-30

Applicant: ams AG

Inventor： Michael Böhm ,  Peter Trattler ,  Mario Manninger

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

Abstract: In one embodiment a current source comprises an input (In) for receiving a brightness signal (Sb), and an output (Out) for providing a driving current (Id) for at least one light-emitting diode, LED, wherein the current source (CS) is configured to extract a first and a second current value (idac_high, idac_low) from the brightness signal (Sb), to derive a duty cycle value (Smod) from the brightness signal (Sb) and to modulate the driving current (Id) as a function of the duty cycle value (Smod) in a pulse-width modulation comprising the first and the second current values (idac_high, idac_low). Furthermore, a method for providing a current is described.

Abstract translation: 在一个实施例中，电流源包括用于接收亮度信号（Sb）的输入（In）和用于为至少一个发光二极管LED提供驱动电流（Id）的输出（Out），其中电流源 （CS）被配置为从亮度信号（Sb）提取第一和第二电流值（idac_high，idac_low），以从亮度信号（Sb）导出占空比值（Smod），并且调制驱动电流 Id）作为包括第一和第二电流值（idac_high，idac_low）的脉冲宽度调制中的占空比值（Smod）的函数。 此外，描述了提供电流的方法。