摘要:
Methods of and systems for estimating the probability of movement of access points in a WLAN-based positioning system are provided. Disclosed are methods to quantify the probability that a particular location estimate of a mobile device made by a Wi-Fi based positioning system is correct to within an arbitrary accuracy. Implementations use observed access point cluster size, age information for access point location determination, and/or the probability that one or more access points detected by the mobile device have relocated based on historic information about the movement of a collection of access points to make the probability determinations.
摘要:
The invention provides a realistic drum experience in a video game. It operates in the context of a video game platform in communication with a display and a drum controller having at least one cymbal and at least one drum pad. It involves determining if a cue to be displayed on the display in a particular sub-lane should be a cue indicating a cymbal input or a cue indicating a pad input. Then, the cue is displayed in the particular sub-lane, indicating the cymbal input or pad input (dependent on the previous determination). Then, input is received from the player via the drum controller; and the input is given a first score if the input was a cymbal input associated with the particular sub-lane and the input is given a second score if the input was an input other than a cymbal input associated with the particular sub-lane.
摘要:
Devices and methods are provided for directionally receiving and/or transmitting acoustic waves and/or radio waves for use in applications such as wireless communications systems and/or radar. High directional gain and spatial selectivity are achieved while employing an array of receiving antennas that is small as measured in units of the wavelength of radio waves being received or transmitted, especially in the case of spatially oversampled arrays. Frequency/wavenumber, multi-dimensional spectrum analysis, as well as one-dimensional frequency spectrum analysis can be performed.
摘要:
A system and method are described for selecting and identifying a unique object or feature in the system user's three-dimensional (“3-D”) environment in a two-dimensional (“2-D”) virtual representation of the same object or feature in a virtual environment. The system and method may be incorporated in a mobile device that includes position and orientation sensors to determine the pointing device's position and pointing direction. The mobile device incorporating the present invention may be adapted for wireless communication with a computer-based system that represents static and dynamic objects and features that exist or are present in the system user's 3-D environment. The mobile device incorporating the present invention will also have the capability to process information regarding a system user's environment and calculating specific measures for pointing accuracy and reliability.
摘要:
A method of segmenting relative user preferences into fine-grain and coarse-grain collections is provided. The method includes providing a set of content items having associated descriptive terms. The method also includes receiving user search input and, in response thereto, presenting a subset of content items. The method includes receiving user selection actions and analyzing the selections to learn the user's preferred descriptive terms. The method includes expressing the learned preferred descriptive terms as a segmented probability distribution function having at least one fine grain segment and at least one coarse grain segment. In response to subsequent search input, the method calls for selecting and ordering a collection of content items by promoting the ranking of content items associated with the learned preferred descriptive terms of the user according to the differentiation provided by the segmented probability distribution function.
摘要:
A sequential planetary stack transmission system is provided. The system includes a stack of planetary gear sets, each gear set including a sun gear engageable with a rotatable central shaft, and freely rotatable concentrically about the central input or output shaft when not engaged with the central shaft. A plurality of planet gears engage with the sun gear, and a ring gear engages with the planet gears. The ring gears form a ring gear barrel rotatable as a unit concentrically with respect to the central shaft. A shifting assembly within the hollow central shaft engages sequentially with the sun gears to provide a desired gear ratio. The planetary stack assembly and the shifting assembly are disposed within a case. The system is suitable for a variety of applications, and is particularly suitable for bicycles.
摘要:
Under one aspect, a system generates dynamic call models within a network, allowing different user entities (UEs) to have different service experiences. The network includes application servers (ASs) and a switch that receives and then forwards UE service requests. The system includes storage media storing hierarchically organized data, which defines potential call models that map potential UE service requests onto ASs. At least two potential call models map a specified potential UE service request onto different ASs that can provide different service experiences. The system includes control logic for providing session control, which receives UE service requests from the switch, receives the hierarchically organized data from the storage media, generates a call model for each UE based on potential call models defined by the hierarchically organized data and on the requested service, and invokes a specified AS based on the generated call model.
摘要:
In one aspect, the present disclosure relates to a dimmable beacon light source for a light based positioning system. In some embodiments, the light source includes a dimmer control switch configured to generate a dimmer signal having a desired light output level, a dimmable driver for controlling the light output of the light source, and a modulator for receiving the dimmer signal from the dimmer control switch, generating a digital pulse recognition signal by controlling the frequency of the dimmer signal to a desired frequency value, and transmitting the digital pulse recognition signal to the dimmable driver to drive the light output of the light source. In some embodiments, the digital pulse recognition signal is a pulse width modulated signal. In some embodiments, the digital pulse recognition signal has a duty cycle based on the dimmer signal.
摘要:
A method for processing a personal health record (PHR) which includes a plurality of events each having a time stamp. The method includes creating a plurality of event-concept pairs by mapping each of the plurality of events in the PHR to a corresponding health concept, assigning to each of the plurality of event-concept pairs the time stamp of the event corresponding to the event-concept pair, identifying associations among the plurality of event-concept pairs, identifying an associative subset of event-concept pairs among the plurality of event-concept pairs, and linking a plurality of members of the associative subset of event-concept pairs to form a thread, in which the thread presents a relationship among the plurality of members of the associative subset of event-concept pairs.