Systems, apparatuses, and methods estimate the distance between a player and a ball by transmitting a chirp (sweep signal) to a radio tag located on the ball. During the chirp, the frequency of the transmitted signal is changed in a predetermined fashion. The radio tag doubles the transmitted frequency and returns the processed signal to a transceiver typically located on the player. The currently transmitted frequency is then compared with the received frequency to obtain a difference frequency from which an apparatus may estimate the distance. The apparatus may simultaneously receive the processed signal from the radio tag while transmitting the sweep signal.

Athletic Performance Monitoring Systems and Methods in a Team Sports Environment

Systems and techniques for the collection and display of athletic information. Athletic data relating to a single person or group of people is collected at a central location, and subsequently displayed at a desired remote location so that the person or people can review and critique their performance. In addition, athletic data for multiple persons can be collected at a central location, and subsequently displayed to a user at a desired remote location, so that the user can compare his or her athletic activities to others.

Interactive Athletic Equipment System

Multiple aspects of systems and methods for voice control and related features and functionality for various embodiments of media playback devices, networked microphone devices, microphone-equipped media playback devices, and speaker-equipped networked microphone devices are disclosed and described herein, including but not limited to designating and managing default networked devices, audio response playback, room-corrected voice detection, content mixing, music service selection, metadata exchange between networked playback systems and networked microphone systems, handling loss of pairing between networked devices, actions based on user identification, and other voice control of networked devices.

Voice control of a media playback system

Example embodiments may relate systems, methods, apparatuses, and computer readable media configured to correlate image data of a user performing physical activity with data collected during the user's performance. Data may include sensor data measuring, force, acceleration, speed, and/or processed sensor data from one or more sensors. Certain embodiments may determine whether the user is within a performance zone based on user attributes. Correlation of the image data with physical activity data may be based, at least in part, whether the user is within a performance zone.

Selecting And Correlating Physical Activity Data With Image Data

Activity metrics may be recorded with granularity to allow a user to view performance information specific to particular times of an activity session. Accordingly, in one example, activity metrics may be detected and recorded for a minimum time unit that may be automatically defined or defined by a user. The metrics may then be conveyed to a user through a display or through audible content. Users may be able to select portions of the activity session to store based on the granular performance information. Content files such as audio or video or athletic performance data files may be cropped based on the selected portions.

Systems and methods for time-based athletic activity measurement and display

Systems, apparatuses and methods are described for automatically managing a plurality of virtual assistants that may be simultaneously available on the same device and wherein each assistant may be preferred for a particular task. Selected assistants may be activated by substituting their key phrase when another was actually uttered.

Speaker command and key phrase management for muli -virtual assistant systems

Techniques are provided for tracking objects in an encoded video stream based on data directly extracted from the video stream, thus eliminating any need for the stream to be fully or partially decoded. Extracted motion vector and DC coefficient data can be used to provide a rough estimation of which macro-blocks are be associated with a background motion model and which macro-blocks correspond to a foreground object which is moving with respect to the background motion model. Macro-blocks which are associated with a moving foreground object can be grouped based on connectivity and a similarity measure derived from the extracted DC coefficient data. The grouped macro-blocks can be tracked from frame to frame to identify and eliminate groups having only negligible motion. The resulting validated macro-block groups will correspond to a rough object mask associated with a moving region in the analyzed frame.

Object tracking in encoded video streams

Various embodiments of methods and apparatus to remove or reduce phase noise in a baseband signal at a receiver are generally described herein. Other embodiments may be described and claimed.

Multicarrier receiver and method with phase noise reduced signal

One or more system, apparatus, method, and computer readable media is described for improving the quality of static image frames having a relatively long residence time in a frame buffer on a sink device. Where a compressed data channel links a source and sink, the source may encode additional frame data to improve the quality of a static frame presented by a sink display. A display source may encode frame data at a nominal quality and transmit a packetized stream of the compressed frame data. In the absence of a timely frame buffer update, the display source encodes additional information to improve the image quality of the representation of the now static frame. A display sink device presents a first representation of the frame at the nominal image quality, and presents a second representation of the frame at the improved image quality upon subsequently receiving the frame quality improvement data.

Static frame image quality improvement for sink displays

One or more system, apparatus, method, and computer readable media is described below for wireless display synchronization of audio and video data streams received through a direct wireless link between a content source and sink. In some embodiments, the presentation time stamp (PTS) associated with the encoding of a digital audio and digital video data stream into a compressed packetized data stream at the source is utilized as a control point for synchronization of the digital audio and video stream payloads presented at the sink. In some embodiments, one or more wireless display-synchronized PTS values are determined based on a feedback signal indicative of display synchronization error. A source including an optical camera may generate audio/video (A/V) streams that encoded and packetized by a multiplexer with wireless display-synchronized PTS values. In further embodiments, a media sync user input interface is provided at one or more of the source and sink.

Sean J. Lawrence

Papers

Speaker command and key phrase management for muli -virtual assistant systems

Object tracking in encoded video streams

Multicarrier receiver and method with phase noise reduced signal

Static frame image quality improvement for sink displays

Distributed media stream synchronization control