公开(公告)号：US10157114B2

公开(公告)日：2018-12-18

申请号：US15204574

申请日：2016-07-07

Applicant: Google LLC

Inventor： Yuan-Jen Chang ,  Chia Hang Yeh

IPC: G06F11/273 ,  G06F11/22 ,  G01M99/00

Abstract: Systems for testing a computer keyboard are provided. In some implementations, the system comprises: a plurality of elongate members, each having a first end and a second end; a support structure having a first surface, a second surface, and a plurality of apertures that pass through the support structure from the first surface to the second surface such that the plurality of apertures corresponds to a layout of keys of a computer keyboard, wherein a longitudinal axis of each of the plurality of elongate members is aligned with the plurality of apertures; and a roller that moves under a subset of apertures during operation of the system and contacts the elongate member thereby causing the elongate member to be displaced by at least a first amount such that the second end of the elongate member protrudes at least a second amount from the surface of the support structure.

公开(公告)号：US20240103593A1

公开(公告)日：2024-03-28

申请号：US18264355

申请日：2021-03-03

Applicant: GOOGLE LLC

Inventor： Chia-Hang Yeh ,  Yuan-Jen Chang

IPC: G06F1/26 ,  H04B3/54

CPC classification number: G06F1/26 ,  H04B3/54

Abstract: A power adapter can include a power input node, a communication channel node, an output node, a low-pass filter, a modulator, and a high-pass filter. The low-pass filter can include a low-pass input node coupled to the power input node and a low-pass output node coupled to the output node. The modulator can include a modulator input node coupled to the communication channel node and a modulator output node. The modulator can be configured to modulate data received from the communication channel node onto a signal having a higher frequency than a data-carrying signal carrying the data received from the communication channel node and output the modulated data to a high-pass input node of a high-pass filter. The high-pass filter can include the high-pass input node coupled to the modulator output node and a high-pass output node coupled to the output node.