Abstract: There is provided a system and method for providing privacy viewing of an output from a electronic display, including a first polarizer configured to polarize a display signal at a first polarization angle; a second polarizer configured to polarize a noise signal at a second polarization angle orthogonal to the first polarization angle; a combiner configured to combine the polarized display signal and the polarized noise signal, and a third polarizer configured to receive the output of the electronic display and polarize the combined polarized display and noise signal at the first polarization angle. The system includes first and second polarization rotators configured to rotate the first and second polarization angles of the combined polarized display and noise signals prior to being output by the electronic display and prior to being received by the third polarizer.

Abstract: An adaptive modulation coding method includes obtaining an estimated signal-to-interference-plus-noise ratio (SINR) and a packet error rate (PER) of a communication link of a user terminal; setting a first adjustment amount of the SINR of the communication link according to the PER of the communication link; calculating an effective SINR of the communication link according to the estimated SINR of the communication link and the first adjustment amount of the SINR of the communication link; and determining a modulation coding scheme of the communication link according to the effective SINR of the communication link.

Abstract: A travel reporter system is used to report abnormal travel events. In use, a sensor mounted on a vehicle obtains real-time data about an object near the vehicle. The object has an object type which is identified by processing the real-time data with an object recognition subsystem of the travel reporter system. An event evaluation subsystem of the travel reporter system processes the real-time data and the object type in order to determine that the object is associated with an abnormal travel event. The abnormal travel event has an event type which is processed by an event notification subsystem of the travel reporter system in order to select a first information consumer type. The event notification subsystem reports the abnormal travel event to information consumers having the first information consumer type.

Abstract: There is provided a system and method for providing privacy viewing of an output from a electronic display, including a first polarizer configured to polarize a display signal at a first polarization angle; a second polarizer configured to polarize a noise signal at a second polarization angle orthogonal to the first polarization angle; a combiner configured to combine the polarized display signal and the polarized noise signal, and a third polarizer configured to receive the output of the electronic display and polarize the combined polarized display and noise signal at the first polarization angle. The system includes first and second polarization rotators configured to rotate the first and second polarization angles of the combined polarized display and noise signals prior to being output by the electronic display and prior to being received by the third polarizer.

Abstract: A method, system, and computer program product for enablement of a phone conversation. The method includes receiving a combined signal including an interference signal and a first voice signal from a first user having a communication with a second user. The interference signal can be used to prevent the first voice signal from being overheard by people near the first user. The first voice signal can be extracted from the combined signal based at least in part on the interference signal and transmitting the extracted first voice signal to the second user. The system and computer program product are also provided.

Abstract: A method and system for handing off a terminal among a plurality of wireless access points (APs) connected to a central management AP. The method comprising: receiving network condition information of a terminal communicatively connected to a first wireless AP among the plurality of wireless APs. Determining a second wireless AP the plurality of wireless APs to which the terminal is to be handed off based on the network condition information of the terminal. The second wireless AP is virtually connected to the terminal. Submitting a handoff request to the second wireless AP. Notifying the terminal to hand off to the second wireless AP in response to receiving a handoff response from the second wireless AP.

Abstract: An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.

Abstract: A method and system for handing off a terminal among a plurality of wireless access points (APs) connected to a central management AP. The method comprising: receiving network condition information of a terminal communicatively connected to a first wireless AP among the plurality of wireless APs. Determining a second wireless AP the plurality of wireless APs to which the terminal is to be handed off based on the network condition information of the terminal. The second wireless AP is virtually connected to the terminal. Submitting a handoff request to the second wireless AP. Notifying the terminal to hand off to the second wireless AP in response to receiving a handoff response from the second wireless AP.

Abstract: A method for processing interference in wireless communication at a base station, wherein at least some of a plurality of (Radio Frequency) RF channels in the base station operates at a current operating frequency point assigned to the base station includes detecting interference of one or more candidate frequency points by using at least one RF channel, wherein the one or more candidate frequency points are different from the current operating frequency point; reporting result of detecting interference of the one or more candidate frequency points to a resource manager; and in response to the resource manager assigning one of the one or more candidate frequency points to the base station, notifying a user to switch from the current operating frequency point to the assigned candidate frequency point.

Abstract: A travel reporter system is used to report abnormal travel events. In use, a sensor mounted on a vehicle obtains real-time data about an object near the vehicle. The object has an object type which is identified by processing the real-time data with an object recognition subsystem of the travel reporter system. An event evaluation subsystem of the travel reporter system processes the real-time data and the object type in order to determine that the object is associated with an abnormal travel event. The abnormal travel event has an event type which is processed by an event notification subsystem of the travel reporter system in order to select a first information consumer type. The event notification subsystem reports the abnormal travel event to information consumers having the first information consumer type.

Abstract: A travel reporter system is used to report abnormal travel events. In use, a sensor mounted on a vehicle obtains real-time data about an object near the vehicle. The object has an object type which is identified by processing the real-time data with an object recognition subsystem of the travel reporter system. An event evaluation subsystem of the travel reporter system processes the real-time data and the object type in order to determine that the object is associated with an abnormal travel event. The abnormal travel event has an event type which is processed by an event notification subsystem of the travel reporter system in order to select a first information consumer type. The event notification subsystem reports the abnormal travel event to information consumers having the first information consumer type.

Abstract: A method for signal modulation includes determining at least one guard band between at least two continuous available sub-bands among multiple available sub-bands that can be used by a communication entity and are discrete; and using the at least one guard band in signal modulation for the communication entity.

Abstract: A method for signal modulation includes determining at least one guard band between at least two continuous available sub-bands among multiple available sub-bands that can be used by a communication entity and are discrete; and using the at least one guard band in signal modulation for the communication entity.

Abstract: A travel reporter system is used to report abnormal travel events. In use, a sensor mounted on a vehicle obtains real-time data about an object near the vehicle. The object has an object type which is identified by processing the real-time data with an object recognition subsystem of the travel reporter system. An event evaluation subsystem of the travel reporter system processes the real-time data and the object type in order to determine that the object is associated with an abnormal travel event. The abnormal travel event has an event type which is processed by an event notification subsystem of the travel reporter system in order to select a first information consumer type. The event notification subsystem reports the abnormal travel event to information consumers having the first information consumer type.

Abstract: A method for signal modulation includes determining at least one guard band between at least two continuous available sub-bands among multiple available sub-bands that can be used by a communication entity and are discrete; and using the at least one guard band in signal modulation for the communication entity.

Abstract: An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.

Abstract: An anti-interference method and device for a wireless communication system. The method includes: receiving a RF signal; analyzing the RF signal to obtain the power variation characteristic of the RF signal; and determining a gain control method according to the power variation characteristic of the RF signal. The anti-interference methods and devices according to the embodiments of the present invention can ensure the communication quality of the wireless communication system in a case that there is strong burst interference.

Abstract: A method for signal modulation includes determining at least one guard band between at least two continuous available sub-bands among multiple available sub-bands that can be used by a communication entity and are discrete; and using the at least one guard band in signal modulation for the communication entity.

Abstract: This invention relates to wireless signal process, and discloses a method for interference process of an interference signal in an OFDM based wireless communication system, comprising: receiving an interference signal; performing time domain and frequency domain analyses on the interference signal to obtain interference characteristics of the interference signal; determining an interference category of the interference signal according to the interference characteristics of the interference signal; and performing interference process on the interference signal in view of the interference category of the interference signal. The method for interference signal process of this invention is effective to both homogeneous network interference and heterogeneous network interference, so that frequency spectrum sharing of homogeneous networks and existing heterogeneous networks can be realized.

Abstract: Synchronization method and apparatus for a wireless wide band system in an interference environment. The method includes: obtaining interference information of a network; selecting at least one channel based at least in part on the interference information; and transmitting resource information through the at least one channel, wherein the resource information indicates a resource allocation determined at least in part on the interference information; and wherein a position of the at least one channel is indicated by a synchronization sequence. The present invention also provides another method and apparatus for synchronization.