Abstract: Disclosed is a method and apparatus for providing visual guidance to a user capturing images of a three-dimensional object. In one embodiment, the operations implemented may include: generating a virtual registered sphere comprising a plurality of contiguous patches, wherein each of the plurality of patches corresponds to a continuous range of image capture angles; rendering at least a portion of the virtual registered sphere in an image capture camera view; determining whether images of the three-dimensional object have been captured to a predetermined satisfactory degree from a particular range of image capture angles associated with a particular patch; and assigning a color to the particular patch based at least in part on the determination of whether images of the three-dimensional object have been captured to the predetermined satisfactory degree from the particular range of image capture angles associated with the particular patch.

Abstract: A receiver receives packets without prior knowledge of their bandwidths. The receiver calculates a first auto-correlation function for a first channel, a second auto-correlation function for a second channel, and a dot product of the first auto-correlation function and the second auto-correlation function. A packet is detected and its bandwidth classified based at least in part on the dot product.

Abstract: Aspects of the present disclosure provide example preamble formats with repeated signal (SIG) fields that may help provide backwards compatibility and help address the effects of larger delay spreads in various wireless bands (e.g., WiFi bands).

Abstract: Methods, systems, computer-readable media, and apparatuses for position determination are presented. In some embodiments, a method for position determination includes selecting at least one of a plurality of access points based on a measure of response time variability associated with the at least one access point. The method further includes sending, from a device, a communication to the selected at least one access point. The method also includes receiving, from the selected at least one access point, a response to the communication. The method additionally includes calculating a distance from the device to the selected at least one access point based on a round trip time associated with the response to the communication.

Abstract: One feature pertains to a multi-chip package that includes a substrate and an electromagnetic interference (EMI) shield coupled to the substrate. At least one integrated circuit is coupled to a first surface of the substrate. The EMI shield includes a metal casing configured to shield the package from radio frequency radiation, a dielectric layer coupled to at least a portion of an inner surface of the metal casing, and a plurality of signal lines. The signal lines are coupled to the dielectric layer and electrically isolated from the metal casing by the dielectric layer. At least one other integrated circuit is coupled to an inner surface of the EMI shield, and at least a portion of the inner surface of the EMI shield faces the first surface of the substrate. The signal lines are configured to provide electrical signals to the second circuit component.

Abstract: Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a station includes a first receiver and a low power circuit including a second receiver. The second receiver may be configured to consume less power than the first receiver. The second receiver receives short paging messages from another wireless device, such as an access point. The paging messages may trigger transitions of the first receiver from inactive doze or sleep states to active awake states based on Traffic Information Maps. Once in the awake state, the first receiver receives messages. This enables the first receiver to reduce the time spent awake, thereby reducing power consumption. A system and method for identifying and managing paging modes is described herein.

Abstract: Systems, methods, devices, and computer program products are described for mitigating macrocell interference during femtocell discovery in a wireless communications system. In one example, a mobile device may be camped on a macrocell. A femtocell transmits out-of-band (OOB) discovery signals to, or receives OOB band discovery signals from, the mobile device to facilitate presence detection. The femtocell may also be configured to use various techniques to transmit in-band beacon bursts (e.g., low or high power beacon bursts) to the mobile device in the macrocell frequency range to trigger the mobile device to perform an inter-frequency scan for cell reselection. The femtocell may transmit communications signals to the mobile device in a femtocell frequency range (different from the macrocell frequency range) after the mobile device has discovered and selected the femtocell.

Abstract: A method for communicating data is provided. In the method, an encoder receives an input bit stream. The encoder generates, based on the input bit stream, a first output bit stream based on at least a first polynomial and a second output bit stream based on at least a second polynomial. The first and second polynomials are each different from each other. The encoder forms a first packet of code symbols, having a first code rate, based on bits from the first output bit stream. A transmitter transmits the first packet. A receiver receives a first negative acknowledgment indicating unsuccessful decoding of the first packet after said transmitting of the first packet. The encoder punctures bits from the second output bit stream and forms a second packet of code symbols having a second code rate. The second code rate is different from the first code rate. The transmitter transmits the second packet in response to the receiver receiving the first negative acknowledgment.

Abstract: Various methods of authenticating an access terminal are presented in the case where the access terminal is roaming within a visited network. An access terminal sends a device authentication message to a visited validation server or a home validation server, where the device authentication message includes an access terminal identifier and authentication data generated at least in part using the validation key. In some embodiments, the authentication data may include a digital signature by a validation key associated with the access terminal identifier. Such a signature can be authenticated by either the visited validation server or the home validation server. In other embodiments, the authentication data may include an access terminal authentication token sent to the visited validation server.

Abstract: A video encoder may encode video data by adaptively selecting between one-eighth-pixel and one-quarter-pixel precision motion vectors, and signal the selected precision. In one example, an apparatus includes a video encoder to encode a block of video data using a one-eighth-pixel precision motion vector when use of the one-eighth-pixel precision motion vector is determined to be preferable for the block over a one-quarter-pixel precision motion vector, and to generate a signal value indicative of the use of the one-eighth-pixel precision motion vector for the block, and an output interface to output the encoded block and the signal value. A video decoder may be configured to receive the signal value and the encoded block, analyze the signal value to determine whether the block was encoded using one-eighth-pixel precision or one-quarter-pixel precision, and decode the block based on the determination.

Abstract: Systems and methods for symbol detection using sub-constellations are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users, a first detection unit configured to detect first components of user symbols for the plurality of users based on the received symbols and a computation unit configured to compute a portion of the received symbols due to the first components of the user symbols. The apparatus further comprises a second detection unit configured to detect second components of the user symbols based on the received symbols with the computed portion removed and a combining unit configured to detect the user symbols by combining the first components of the user symbols with the respective second components of the user symbols.

Abstract: The subject matter disclosed herein relates to wireless communication of messages between a wireless access point and one or more mobile stations. Example embodiments may comprise wireless communication of messages of variable length partitioned among one or more beacon signals transmitted from the wireless access point.

Abstract: An embodiment is directed to displaying information to a user of a communications device. The communications device receives a query including a social parameter, a temporal parameter and a spatial parameter relative to the user that are indicative of a desired visual representation of a set of data objects. The communications device determines degrees to which the social, temporal and spatial parameters of the query are related to each of the set of data objects in social, temporal and spatial dimensions, respectively. The communications device displaying a first visual representation of at least a portion of the set of data objects to the user based on whether the determined degrees of relation in the social dimension, temporal dimension and spatial dimension satisfy the respective parameters of the query.