Apple Inc.

Invensense, Inc.

Pablo Moreno Galbis

Hopil Bae

Sunmin Jang

Mahdi Farrokh Baroughi

Xiang Lu

Stanley Bo-Ting Wang

Stanley B Wang

Young Don Bae

Nikhil Acharya

Hari P Paudel

Yaser Azizi

Ce Zhang

Shengzhe Jiao

Xia Li

Wei Hsin Yao

Paolo Sacchetto

Derek Keith Shaeffer

Seung Bum Rim

Chen Chen

Wei Xiong

Henry C Jen

Majid Gharghi

Du Chen

Haitao Li

Yongjie Jiang

Le Jin

Feng Yu

Pradeep Shettigar

Haojiang Zhou

Ling Zhang

Dongwon Kwon

Jeongsup Lee

SeyedAli TaheriTari

Jialin Liu

Arjunsimha Chaturbhuj

Ruofan Zhang

Mohammadhasan Fayazi

A display system may include a plurality of light emitting diodes to emit light, where each of the light emitting diodes are connected in parallel and a plurality of first switches respectively coupled to the plurality of light emitting diodes. A first switch of the plurality of first switches is coupled in parallel to a first light emitting diode. The first switch may short the first light emitting diode of the plurality of light emitting diodes through a defined resistor having a defined value that therefore draws a defined short circuit current.

Systems and methods for mitigating micro-LED failures

Electronic devices, displays, and methods are provided for operating an electronic display in coexistence with sensors that could be adversely impacted by the operation of the electronic display. An electronic device may include an electronic display and a sensor. The electronic display may display image content by light emission during an emission period and periodically enter a quiet period in which the light emission of the electronic display is turned off. The sensor may perform sensing operations during the quiet period without interference from the operation of the electronic display.

Electronic display timing to mitigate image artifacts or manage sensor coexistence

To reduce image artifacts induced by temperature variations associated with display pixels of an electronic display, processing circuitry may process temperature sensing data to obtain an average temperature and a temperature distribution of the electronic display. Based on the processed temperature data, the processing circuit may adjust a reference voltage applied to the display pixels to compensate for the average temperate. To further correct for the image artifacts, the processing circuitry may transform image data to luminance domain. Based on the processed temperature data, the processing may adjust luminance vales of the image data to compensate for the temperature distribution.

Two-dimensional temperature sensing and compensation

A start-up speed enhancement circuit and method for lower-power regulators is provided herein. Operations of a method can comprise detecting a condition of a power regulator being a start-up condition and applying a first current and a second current to the power regulator based on the start-up condition. The method can also comprise determining the condition of the power regulator changes from the start-up condition to an operation condition. Further, the method can comprise stopping application of the second current to the power regulator based on the condition being the operation condition.

Start-up speed enhancement circuit and method for lower-power regulators

A bias current circuit is disclosed. The bias current circuit includes a number of current sources that can selectively be coupled to a bias current node or an auxiliary node. The bias current may be provided through the bias current node. During a trimming operation, a control circuit may selectively couple particular ones of the current sources to the bias current node, in accordance with a desired bias current. Other ones of the current sources may be coupled to the auxiliary node, through which an auxiliary current is provided. Upon completing the trimming operation, the control circuit may cause the auxiliary current to be reduced to zero.

Method and apparatus for bias current trimming

A circuit includes a sensor and a half-bridge circuit. The sensor includes a first sensor capacitor and a second sensor capacitor, where capacitances of the first sensor capacitor and the second sensor capacitor change in opposing directions responsive to receiving a physical signal. The sensor generates a plurality of sensor signals according to the physical signal, the plurality of signals including a common mode injection and a plurality of differential signals. The half-bridge circuit includes a first half-bridge capacitor and a second half-bridge capacitor, where capacitances of the first half-bridge capacitor and the second half-bridge capacitor compensate for the common mode injection of the plurality of sensor signals. The sensor and the half-bridge circuit are coupled to a plurality of sense nodes configured to output the plurality of differential signals.

Half-bridge circuit for a sensor

Growing community of inventors

San Mateo, CA, United States of America

Pablo Moreno Galbis