The various implementations described herein include methods, devices, and systems for calibrating LED(s). In one aspect, an electronic device includes: a plurality of light emitting diodes (LEDs); one or more processors; and memory storing a plurality of color correction matrices, each color correction matrix of the plurality of color correction matrices corresponding to an LED of the plurality of LEDs and generated based on a desired color value for the corresponding LED, wherein the electronic device is configured to relay status of the electronic device via the plurality of LEDs operating in conjunction with the plurality of color correction matrices.

A semiconductor device and its manufacturing method are presented. The manufacturing method includes providing a substrate structure; forming a first metal layer on the substrate structure; forming a second metal layer on the first metal layer; forming a first oxide layer on the second metal layer at a first temperature; and conducting the remaining manufacturing processes including thermal processes at a second temperature that is higher than the first temperature. This method reduces the concentration of the first metal diffused into the surface of the second metal layer during the thermal processes, thus reducing the amount of the oxide of the first metal formed on the surface of the second metal layer. Therefore, it is beneficial to the establishment of metal wire connections.

Systems and methods for assessing the visual acuity of person using a computerized consumer device are described. The approach involves determining a separation distance between a human user and the consumer device based on an image size of a physical feature of the user, instructing the user to adjust the separation between the user and the consumer device until a predetermined separation distance range is achieved, presenting a visual acuity test to the user including displaying predetermined optotypes for identification by the user, recording the user's spoken identifications of the predetermined optotypes and providing real-time feedback to the user of detection of the spoken indications by the consumer device, carrying out voice recognition on the spoken identifications to generate corresponding converted text, comparing recognized words of the converted text to permissible words corresponding to the predetermined optotypes, determining a score based on the comparison, and determining whether the person passed the visual acuity test.

An integrated circuit, a circuit assembly and a method for operation the integrated circuit are disclosed. In embodiments the integrated circuit includes at least one supply voltage terminal configured to receive a supply voltage for operation the integrated circuit, at least one input terminal configured to receive an analog input signal corresponding to an audio signal, at least one output terminal configured to provide an analog output signal and a signal strength detector configured to detect a signal strength of the analog input signal provided at the at least one input terminal, wherein the integrated circuit is configured to amplify an audio signal based on the detected signal strength and to output a corresponding amplified signal at the at least one output terminal, wherein the integrated circuit comprises a signaling circuit configured to indicate an amplification setting of the integrated circuit at the at least one supply voltage terminal.

A sensing device includes a micro-electromechanical sensor, a source follower and an amplifier. The source follower includes a first output module including a first transistor and a second transistor. The micro-electromechanical sensor is configured to generate an input signal. A first terminal of the first transistor is configured to receive a first reference voltage. A second terminal and a control of the first transistor are electrically connected to the first output terminal and to a first current source respectively. A first terminal and a second terminal of the second transistor are electrically connected to the second terminal and the control terminal of the first transistor respectively. A control terminal of the second transistor is configured to receive the input signal. A first input terminal and a second input terminal of the amplifier are electrically connected to a first output terminal configured to receive a common-mode voltage respectively.

A carrier substrate and a method for making a carrier substrate are disclosed. In an embodiment a carrier substrate includes a substrate body having a multilayer structure, electrical connection pads on a top surface of the substrate body, an organic cushion layer on the top surface of the substrate body, electrically conductive elongated parts arranged on top of the cushion layer, wherein each conductive elongated part is contacted to a respective electric connection pad and a solder pad located at an end of each elongated part distant from the respective connection pad.

An audio/video recording and communication device configured as a doorbell has a housing with a support structure and a removable faceplate. A flexible translucent membrane of the faceplate supports a button aligned with a mechanical switch when the removable faceplate is attached to the housing such that a plurality of light emitting elements are positioned around the mechanical switch transmit light through the translucent membrane. A removable battery casing is configured to hold at least one battery and has a release button physically coupling with a detent of the support structure to retain the removable battery casing within the support structure. The removable battery casing may be removed from the device for recharging without removing the device from a surface on which it is mounted.

Functional jewelry is disclosed. A bracelet includes a plurality of light-emitting diodes (LEDs), a main control unit, and positional and situational sensors, typically including an accelerometer, as well as a decorative, interchangeable fascial layer. The bracelet may also include sensors such as capacitive touch sensors, a microphone, and a color sensor. A radio transceiver within the bracelet is adapted to implement a protocol such as BLUETOOTH 4.0, and is adapted to allow the bracelet to communicate in peer-to-peer or master-slave mode. Two users can pair their bracelets in person, usually with a gestural trigger, for shared light displays, multi-player games, and other types of interactions. Larger groups can pair temporarily and contextually for multi-user displays and interactions, in an ad hoc network with distributed functions. Real-world interactions are communicated to a social network with profiles linked to the individual bracelets.

A noise detector, a method of detecting an event at a location, and an analysis/alert engine. In one embodiment, the method includes: (1) deriving a raw signal from noise proximate the noise detector and (2) generating a noise score from the raw signal, the noise score being insufficient to reproduce a content of the raw signal, (3) detecting a number of wireless devices at the location, and (4) determining occurrence of an event at the location based on the noise score and the number of wireless devices detected.

An MEMS optical microphone, including: a shell including an inner cavity and a sound inlet that communicates the inner cavity with outside; an MEMS module including a diaphragm suspended in the inner cavity, when an acoustic pressure is applied, an aperture is formed in the diaphragm, and the size of the aperture increases or decreases with the magnitude of the acoustic pressure applied to the diaphragm; an optoelectronic module including an electromagnetic radiation source and a sensor, the electromagnetic radiation source and the sensor are arranged on opposite sides of the diaphragm, and a light beam emitted by the electromagnetic radiation source passes through the aperture and reaches the sensor; and an integrated circuit module electrically connected with the MEMS module and the optoelectronic module. Advantages of high sensitivity and flat frequency response can be achieved, which provides the potential to further improve the performance of the device.