摘要:
A mobile station and unattached work area is used with an electronic pen, which includes a transmitter, such as an acoustic transmitter. The mobile station includes a receiver that receives signals from the transmitter and orientation sensors that detect movement of the mobile station. The position of the receiver is calibrated with respect to the unattached work area. Data from the orientation sensors is received when the mobile station, and thus, the receiver is moved with respect to the work area. A transformation matrix is generated based on the data from the orientation sensors, which can be used to correct for the movement of the receiver. The position of the transmitter in the electronic pen is calculated and mapped based on received signals and the transformation matrix and the mapped position is then displayed.
摘要:
A method calibrates a spread spectrum receiver having a received signal strength below a noise floor. The method includes estimating an input noise power, and measuring a noise power output from the receiver. The method also includes comparing the estimated input noise power with the measured output noise power to determine at least one calibration value. The method further includes calibrating the receiver based upon the at least one calibration value.
摘要:
An antenna array may stagger the signal of one or more beams within a single base station sector. The time-delayed beams may have a watermark within the signal they are carrying. The receiving unit then may identify the beam as a time-delayed beam and compensate for the delay using stored data. The receiving unit may transmit the beam identification information to the base station and receive the time delay data.
摘要:
In an embodiment, a mobile device includes a sensor processor system, an application processor system and a power management controller that controls power being applied to the application processor system. The sensor processor system monitors sensors connected to the mobile device. The sensor processor system detects a pre-defined gestures and an environmental condition or event based on the monitoring. The pre-defined gesture corresponds to one or more actions initiated by a user of the mobile device (e.g., the user jogs with the mobile device, places the mobile device in his/her pocket or backpack, etc.). The sensor processor system selects a power profile to be applied to the application processor system based on the detection, and instructs the power management controller to apply the selected power profile to the application processor system.
摘要:
The subject matter disclosed herein relates to a system and method for acquiring signal received from satellite vehicles (SVs) in a satellite navigation system. In one example, although claimed subject matter is not so limited, information processed in acquiring a signal from a first SV may be used in acquiring a signal from a second SV.
摘要:
A method for measuring positional changes of an object, including rotation about any or all of three axes, using linear accelerometers. There is disclosed a method of using a linear accelerometer to integrate two 3D linear accelerometers in order to measure and supply for further use six-dimensional information, that is, translation in three dimensions and rotation about three axes. Two linear accelerometer sensors are used to determine all but rotation about an imaginary axis between the accelerometers. Output from a third accelerometer may be used to generate the data needed to determine rotation about the imaginary axis. The need for a gyroscope for detecting changes in heading (i.e., yaw or azimuth) may therefore be avoided.
摘要:
The subject matter disclosed herein relates to the control and utilization of multiple sensors within a device. For an example, motion of a device may be detected in response to receipt of a signal from a first sensor disposed in the device, and a power state of a second sensor also disposed in the device may be changed in response to detected motion.
摘要:
An implementation of a system and method for using sensors such as one or more gyroscopes and/or accelerometers to sense input is provided. For example, one or more of such sensors may be use to provide virtual buttons at various areas on the housing of a mobile device, detect a force against the housing, or to detect relative movement of the mobile device.
摘要:
Methods, apparatuses, systems, and computer-readable media for integrating sensation functionalities into social networking services and/or applications are presented. According to one or more aspects, a computing device may receive a status update associated with a social networking service, and the status update may include haptic data. Subsequently, the computing device may cause haptic feedback to be provided to at least one user of the social networking service, based at least in part on the haptic data and the at least one user's relationship with a sender of the status update within the social networking service. In at least one arrangement, first haptic feedback is provided to the user if the user is within a first group of users, and second haptic feedback different from the first haptic feedback is provided to the user if the user is within a second group of users different from the first group of users.
摘要:
Signal acquisition assistance data is obtained for receiving devices such as wireless position assisted location devices seeking signals from any source, such as satellite vehicles and base stations. The data may be obtained from previously acquired data, based upon evaluation of changes in parameters such as time and location that may jeopardize validity. In some cases the data may be adjusted for the changes in parameters. Refined data may be calculated by a receiver using partial measurements of signal sets, particularly if the acquisition assistance data provided by a remote entity includes more distinct parameters than have typically been provided. New data need not be obtained until the validity of previous data expires due to limitations upon temporal extrapolation using Doppler coefficients, unless mobile station movement that cannot be compensated is detected, and jeopardizes validity of the previous data.