Methods and devices for a remote control device for a display device are disclosed. In one embodiment, the remote control device may comprise a plurality of light sources that each has a light profile angled in a predetermined degree different from other light sources. In another embodiment, the remote control device may comprise a controller; and a plurality of optical detectors coupled to the controller. Each optical detector may generate a pair of electrical signals in response to incident light from a plurality of light sources located on a display device and the controller may calculate the position of the remote control device based on the electrical signals.

The present invention relates to a method and system for determining location and position for the effective use thereof in a location-based service by precisely determining information on the location and position of a user terminal, such as a smartphone, to provide the determined location and position to the user terminal using a georeferenced reference image DB preconstructed on a server on a network or on the user terminal, and images captured by a camera of the user terminal.

A positioning method and a corresponding terminal and system. A terminal acquires positioning information of the terminal, and sends the acquired positioning information to a first transmission node, the positioning information comprising at least one type of the following information: signal strength information, a subframe or subframe set index, channel characteristic information, access point information and environment characteristic information. The first transmission node transmits the positioning information to a positioning service system, and the positioning service system acquires the positioning information reported by the terminal and determines a geographic position of the terminal according to the positioning information. The present invention can satisfy related enhanced positioning demands.

A system and method for locating objects using radio frequency identifiers is provided. Each object to be located by the user has an object unit attached thereto with a RFID transponder. The user carries a proximity unit with a RFID transponder and warning devices. The method comprises: -a controller receives the instruction to locate a specific object; the controller obtains RFID readings, from the main intermediate units associated with location areas, with information about the object units detected; -determining the location area of the object to be located; -sending information to the user about the location area; -detecting the presence of the proximity unit carried by the user when it is within the location area; -repeatedly obtaining, using readings of the RFID signal strength, information about the distance between the proximity unit and the object unit, reporting it to the user using warning devices.

An apparatus for detecting a position of a train, the apparatus includes a reader. The reader electrically irradiates beams along a plurality of directions toward a tag, combines signals received from the tag and obtains a beam direction information toward the tag, and then detects the position of the train using the beam direction information and a tag information of the tag.

A user equipment (UE) provides to a location server a recommendation or request for positioning technologies and methods that may be appropriate for the environment in which the UE is located. The UE may provide the recommendation or request may be a priority list of one or more specific positioning technologies, one or more specific methods of a positioning technology, a combination thereof. The UE based prioritization for positioning may be provided unsolicited or requested by the location server. The UE based prioritization for positioning may be provided as part of a message used in current positioning protocols, such as Long Term Evolution (LTE) Positioning Protocol (LPP), e.g., by ranking information elements (IEs) associated with each positioning technology and method in the body of the message or as part of a common IE.

A technique for updating a positioning configuration in a positioning system comprising a plurality of anchor nodes for determining positions of tag devices within a localization area using radio technology is disclosed. A method implementation of the technique comprises determining (S202) an updated positioning configuration for at least one of a set of tag devices and a set of anchor nodes of the positioning system based on predefined positioning requirements that depend on a zone of the localization area in which the set of tag devices is currently located, and applying (S204) the updated positioning configuration to the at least one of the set of tag devices and the set of anchor nodes.

A positioning system uses radio wave strengths of radio waves received from first and second wireless transmission terminals movable through an indoor space to locate positions of the terminals. The positioning system includes plural wireless receivers disposed in the indoor space, and a position estimating component that estimates the positions of the terminals based on positions of the receivers using first and second position estimation data in a limited range of the reception data generatable by the receivers. The receivers detect the radio wave strengths and can generate reception data including information relating to the radio wave strengths. At least one of the position estimating component and the receivers acquires the first and second position estimation data limited to first and second set regions suited to the first and second wireless transmission terminals from the reception data receivable relating to the first and second wireless transmission terminals, respectively.

Various wireless systems may benefit from suitable sharing of antennas and related equipment. For example a various avionics systems may benefit from systems and methods for providing a distance measurement equipment L-band shared antenna. Circuitry can include an interface to a bottom omni-directional antenna. The circuitry can also include a radio frequency splitter in switchable communication with the interface to the bottom omni-directional antenna. The circuitry can further include an interface between the radio frequency splitter and a distance measurement equipment receiver. The circuitry can additionally include an interface between the radio frequency splitter and a surveillance receiver.

Systems and methods are provided for firearm monitoring, including a server device running application software that receives signals from firearms regarding usage thereof and a controller running application software configured to communicate with a connected device via a communication interface, detect a jamming signal that inhibits communication with the connected device, stop, in response to detecting the jamming signal, communication with the connected device, and harvest, in response to detecting the jamming signal, power from the jamming signal via a wireless-energy harvesting mechanism having a receiving antenna configured to receive the jamming signal, a rectifier configured to convert the received signal to direct current, and a DC-DC converter configured to alter voltage of the direct current to a desired voltage.