Abstract: Compact folded lens systems are described that may be used in small form factor cameras. Lens systems are described that may include four lens elements with refractive power, with a light folding element such as a prism, located between a first lens element on the object side of the lens system and a second lens element, that redirects the light refracted from the first lens element from a first axis onto a second axis on which the other lens elements and a photosensor are arranged. The lens systems may include an aperture stop located behind the front vertex of the lens system, for example at the first lens element, and an optional infrared filter, for example located between the last lens element and a photosensor.

Abstract: One embodiment of the present disclosure is directed to a wearable electronic device. The wearable electronic device includes an enclosure having a sidewall with a button aperture defined therethrough, a display connected to the enclosure, a processing element in communication with the display. The device also includes a sensing element in communication with the processing element and an input button at least partially received within the button aperture and in communication with the sensing element, the input button configured to receive two types of user inputs. During operation, the sensing element tracks movement of the input button to determine the two types of user inputs.

Abstract: A method for producing an optical apparatus includes providing a pair of glass wafers. One or more diffractive optical elements (DOEs) are formed on one or more of the glass wafers. A spacer is positioned between the glass wafers so as to define a cavity containing the DOEs, and a hermetic seal that bonds the glass wafers together and seals the cavity is formed.

Abstract: Connector tongues that may provide a high signal quality or signal integrity to allow high speed data transfers, may be reliably manufactured, and may be durable and have good wear performance. One example may provide a connector tongue having contacts and traces formed on a printed circuit board. Using a printed circuit board for pathways through a connector tongue may provide low impedances for power traces, matched impedances for differential signal pairs, and shielding. This may provide a connector tongue that may provide a high signal quality or signal integrity to allow high speed data transfers. These and other examples may provide a connector tongue that is durable and has good wear performance by including side retention features on each side of the printed circuit board. The side retention features may be metallic, ceramic, or other durable material.

Abstract: A voltage regulator circuit is disclosed. In one embodiment, a low drop-out (LDO) voltage regulator includes a voltage loop and a current loop. The current loop includes a source follower coupled to an output node of the LDO voltage regulator, the source follower being implemented with a PMOS transistor. The current loop also includes a current mirror coupled between a first branch of the current loop and a second branch of the current loop. The source follower is implemented in the second branch of the current loop. The voltage loop includes an amplifier circuit having an inverting input coupled to the output node, and a non-inverting input coupled to receive a reference voltage. The output of the amplifier is coupled to the gate terminal of the PMOS transistor of the current mirror.

Abstract: Aspects of the subject technology relate to electronic devices with displays. A display may include display control circuitry including an internal oscillator and one or more counters. The counters may be used to calibrate a display line time to a system line time to ensure that each displayed frame is synchronized with received display data frames from system circuitry for the electronic device. The counters may include a first counter that maintains a current-row count during operation of a current row of display pixels during a current display frame and a second counter that maintains a current-frame count that indicates a number of counts accumulated during the current display frame. The current-row count and the current-frame count may be referenced to the system line time during operation of each pixel row to remove any errors accumulated during operation of the previous pixel rows.

Abstract: Described herein is a feedstock comprising BMG. The feedstock has a surface with an average roughness of at least 200 microns. Also described herein is a feedstock comprising BMG. The feedstock, when supported on a support during a melting process of the feedstock, has a contact area between the feedstock and the support up to 50% of a total area of the support. These feedstocks can be made by molding ingots of BMG into a mole with surface patterns, enclosing one or more cores into a sheath with a roughened surface, chemical etching, laser ablating, machining, grinding, sandblasting, or shot peening. The feedstocks can be used as starting materials in an injection molding process.

Abstract: Mobile devices such as cellular telephones are provided that communicate with wireless networks. Cellular telephone network equipment may communicate with a cellular telephone over a data connection. The cellular telephone may have an internet protocol (IP) address that allows data to be provided to the cellular telephone over the data connection. To conserve resources and release unused IP addresses, the cellular telephone network equipment may deactivate inactive data connections after a period of inactivity. A baseband processor within a mobile device may periodically send User Datagram Protocol (UDP) keep-alive packets over the data connection to ensure that the data connection remains active. The keep-alive packets may be directed to a packet sink server or may be associated with a black hole route. An applications processor in the telephone may remain in sleep mode during keep-alive packet transmission to conserve power.

Abstract: An electronic device presents a first portion of structured content on a display. The structured content includes a plurality of sections and the first portion includes content from a first section of the plurality of sections. The device detects a contact on the touch-sensitive surface, detects an increase in a characteristic intensity of the contact, and detects a movement of the contact. In response to detecting the increase in the characteristic intensity of the contact and the movement of the contact: in accordance with a determination that the characteristic intensity of the contact increases above an intensity threshold, the device translates the structured content to display a start of a second section; and in accordance with a determination that the characteristic intensity of the contact does not increase above the intensity threshold, the device translates the structured content in accordance with a magnitude of the movement of the contact.

Abstract: Systems, methods, and computer-readable medium are provided for managing user information. For example, data of the user may be stored in a memory. A request for a user to authorize access of at least a portion of the data may be provided. The authorization may be for an application to access the portion of the data. In some examples, a response to the request may be received, and an indication that the request was provided to the user may be provided without indicating whether the user denied the request.

Abstract: The present disclosure relates to music user interfaces. A device, including a display and a rotatable input mechanism, is described in relation to accessing and playing music. In some examples, a user can provide input through the rotatable input mechanism to access a landing screen of a music application. The landing screen concurrently displays an affordance for accessing playlists, an affordance for a list of artists, and an affordance for accessing a list of songs.

Abstract: A method and device for providing a reminder to a user of a mobile device are provided. The method includes receiving a request to establish a first geographical area for the mobile device for triggering a first location-based reminder, the request including a flag indicating that other sensor information is to be used to determine when to provide the first location-based reminder to the user. A location of the mobile device is monitored to identify whether the first geographical area is triggered by the mobile device crossing a first boundary of the first geographical area. After the mobile device crosses the first boundary the first location-based reminder is identified and a state of the mobile device is determined. The first location-based reminder is provided to the user based on the state of the mobile device being included in a list of trigger states.

Abstract: An electronic device can include a key and/or a keyboard system. In one embodiment, magneto-rheological materials are employed to provide a variable response keyboard of an electronic device.

Abstract: A voltage of a first pin that is one of several pins of an external connector of a system is measured, while the first pin is un-driven except for being pulled to ground through a first resistance, and a second pin of the external connector is being used as a power supply rail of the system. The measured voltage is compared to a short circuit threshold and in response to that threshold being exceeded, the power supply voltage on the second pin is reduced. In such an embodiment, no test stimulus needs to be applied to any of the pins of the external connector. Other embodiments are also described and claimed.

Abstract: Managing orthogonal frequency division multiple access (OFDMA) uplink acknowledgements is described herein. An example system can include an interface circuit to generate a physical layer convergence protocol data unit (PPDU) including a physical layer preamble, a first sub-channel field corresponding to a first station, and a second sub-channel field corresponding to a second station. The first sub-channel field can carry a first unicast trigger corresponding to the first station, and the second sub-channel field can carry a second unicast trigger corresponding to the second station. The interface circuit can also transmit the PPDU to the first and second stations.