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公开(公告)号：US10462578B2
公开(公告)日：2019-10-29
申请号：US15589203
申请日：2017-05-08
Applicant: Intel Corporation
Inventor： Kevin R. Hoskins , Arun P. Jose , David Harkness , Georgios C. Dogiamis , Rajashree Raji Baskaran
Abstract: A piezoelectric contact microphone with a mechanical vibration conduction interface provides an improved mobile electronic device microphone. In an embodiment, the mechanical vibration conduction interface is placed on a bone structure and conducts vibration from the bone structure to the piezoelectric contact microphone. Because of the direct contact, this use of piezoelectric contact microphone reduces or eliminates interferences effects due to wind and other airflow over the microphone. The mechanical vibration conduction interface materials and structure are selected to provide effective transmission of vibration from the bone structure to the piezoelectric element within the piezoelectric contact microphone. This piezoelectric contact microphone enables mobile electronic devices to provide improved voice communication, voice transcription, and voice command recognition in the presence of wind noise and other noise.
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公开(公告)号：US20180191267A1
公开(公告)日：2018-07-05
申请号：US15397599
申请日：2017-01-03
Applicant: Intel Corporation
Inventor： Kamyar Keikhosravy , Shahriar Mirabbasi , David Harkness , Hamid Abdollahi
IPC: H02M7/219
CPC classification number: H02M7/219 , H02M2007/2195 , Y02B70/1408
Abstract: Embodiments include apparatuses, methods, and systems for an alternating current (AC) to direct current (DC) converter including a synchronous rectifier to convert an AC input signal to a DC output signal. The AC to DC converter may further include a feedback circuit coupled to an output terminal of the synchronous rectifier to sample the DC output signal and to generate a digital signal to represent a voltage of the DC output signal and a controller coupled to receive the digital signal from the feedback circuit. The controller may compare the digital signal to a threshold, and based on the comparison, control an adjustment of the voltage of the DC output signal. Additional embodiments may also be described.
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公开(公告)号：US20180324530A1
公开(公告)日：2018-11-08
申请号：US15589203
申请日：2017-05-08
Applicant: Intel Corporation
Inventor： Kevin R. Hoskins , Arun P. Jose , David Harkness , Georgios C. Dogiamis , Rajashree Raji Baskaran
CPC classification number: H04R17/02 , H04R1/265 , H04R1/46 , H04R2410/07 , H04R2499/11
Abstract: A piezoelectric contact microphone with a mechanical vibration conduction interface provides an improved mobile electronic device microphone. In an embodiment, the mechanical vibration conduction interface is placed on a bone structure and conducts vibration from the bone structure to the piezoelectric contact microphone. Because of the direct contact, this use of piezoelectric contact microphone reduces or eliminates interferences effects due to wind and other airflow over the microphone. The mechanical vibration conduction interface materials and structure are selected to provide effective transmission of vibration from the bone structure to the piezoelectric element within the piezoelectric contact microphone. This piezoelectric contact microphone enables mobile electronic devices to provide improved voice communication, voice transcription, and voice command recognition in the presence of wind noise and other noise.
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