Apple Inc.

Benjamin M Oztalay

Victor H Yin

Jun Qi

Hung Sheng Lin

Florence W Ow

Rong Liu

Wenyong Zhu

Chenhua You

Moshe H Malkin

Joshua A Spechler

Tavys Q Ashcroft

Ziruo Hong

Ling Han

Janos C Keresztes

Arash Mehrabi

Corey S Provencher

Sherry Cao

Michael F Jean

Jose V Santos Martinez

Atul A Salvekar

Brian D Mariner

Shaofeng Liu

Bo Zhou

Andrew H Jones

Jeremy L Britt

An electronic device may have a camera. The camera may capture still and moving images. A camera status indicator may be included in the electronic device. The camera status indicator may emit light to indicate when the camera is in use capturing video or other images. The camera status indicator may have multiple light-emitting devices such as light-emitting diodes or lasers. The light-emitting devices may have different colors. Clear encapsulant may cover the light-emitting devices. A white polymer wall or other light recycling structure may run along an outer peripheral edge of the encapsulant. A light diffusing coating layer may coat an outer surface of the clear encapsulant. Light reflections from the status indicator may be reduced in captured images.

Electronic device with camera status indicator

A wireless power transmitting device transmits wireless power signals to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data packets to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data packets. The data receiver may be configured to demodulate the received data packets. The data packets may include at least preamble bits, start bits, and data bits encoded as biphase half-bit signals in accordance with a predefined wireless power transfer protocol. During demodulation, the receiver may perform preamble detection, start bit detection, and data bit detection by comparing the input signals to corresponding reference patterns using a maximum likelihood sequence detection scheme. Phase recovery may be employed throughout to help provide immunity to phase change.

Methods and apparatus for performing demodulation using maximum likelihood sequence matching in a wireless charging device

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San Francisco, CA, United States of America

Benjamin M Oztalay