Abstract: To enable a risk of collision between moving objects such as a pedestrian and a vehicle to be quickly and accurately determined in a roadside device, when the roadside device receives a message including state information indicating that a pedestrian is in a risky state from a pedestrian terminal, the roadside device acquires position information of a vehicle present around the pedestrian in the risky state based on a result of detecting vehicles on roads by a radar, determines a risk of collision between the pedestrian in the risky state and the vehicle based on the position information of the vehicle, and when the risk of collision exists, transmits a message including alarm information indicating that the risk of collision exists to the terminal.

Abstract: This application provides a display method and a device and relates to the field of communications technologies, so as to display different content on a terminal and an external display apparatus. A specific solution includes: displaying, by the terminal, a first screen, and instructing the external display apparatus to display a first desktop including a first application but not including a second application, where the first screen is different from the first desktop; and displaying, by the terminal in response to a first input of a user on the first screen, a second screen including the first application and the second application on the terminal, and instructing the external display apparatus to display a second desktop including the first application and the second application.

Abstract: A temperature detecting and controlling integration device for the micro speaker is provided. After the filter receives an input signal, the power amplifier adjusts the power amplification, and the multi-frequency detection signal is generated with the waveform generator. The extracted signal is generated to drive the micro speaker to emit a sound signal. Afterwards, the voltage signals are extracted at two ends of the coil and the temperature signal is obtained by converting, capturing, and integrating to pass the temperature value to the external device, and the temperature value of the non-linear temperature-controlling unit is analyzed to adjust the compensation gain in real time. The smoothly control of speaker temperature and stable playback of the sound signals is played that can be achieved.

Abstract: A temperature detecting and controlling integration device for the micro speaker is provided. After the filter receives an input signal, the power amplifier adjusts the power amplification, and the multi-frequency detection signal is generated with the waveform generator. The extracted signal is generated to drive the micro speaker to emit a sound signal. Afterwards, the voltage signals are extracted at two ends of the coil and the temperature signal is obtained by converting, capturing, and integrating to pass the temperature value to the external device, and the temperature value of the non-linear temperature-controlling unit is analyzed to adjust the compensation gain in real time. The smoothly control of speaker temperature and stable playback of the sound signals is played that can be achieved.

Abstract: An object detection apparatus includes: capture region extraction circuitry receives measurement information generated by a radar apparatus using reflected waves from each object and uses the measurement information to extract second unit regions as first capture regions from among first unit regions, the first unit regions being regions into which a measuring range of the radar apparatus has been divided, the second unit regions being regions in which each object has been captured; preliminary grouping circuitry that forms a preliminary group including a second capture region that is present within a determined range; feature quantity acquisition circuitry that calculates a feature quantity that represents an association between the preliminary group and the second capture region; discrimination circuitry that discriminates a type of each object that belongs to the second capture region; and object determination circuitry that groups the second capture region according to the type to detect that object.

Abstract: Frequency analysis of each of a plurality of reception antennas and each of reception signals received by the plurality of reception antennas is performed, a power spectrum is calculated for each of the reception antennas, a standard deviation indicating a degree of conformity in a peak of the power spectrum among the plurality of reception antennas is calculated, the power spectra are corrected with use of the standard deviation, a peak is detected based on the corrected power spectra, and a target object is detected based on the detected peak.

Abstract: A temperature detecting and controlling integration device for the micro speaker is provdied. After the filter receives an input signal, the power amplifier adjusts the power amplification, and the multi-frequency detection signal is generated with the waveform generator. The extracted signal is generated to drive the micro speaker to emit a sound signal. Afterwards, the voltage signals are extracted at two ends of the coil and the temperature signal is obtained by converting, capturing, and integrating to pass the temperature value to the external device, and the temperature value of the non-linear temperature-controlling unit is analyzed to adjust the compensation gain in real time. The smoothly control of speaker temperature and stable playback of the sound signals is played that can be achieved.

Abstract: An object detection device includes a sub-cluster generating circuitry which, in operation, divides a cluster generated by a cluster generator into one or more first sub-clusters each corresponding to a part of an object having a different traveling direction or traveling speed from a main part of the object and a second sub-cluster corresponding to the main part of the object; and a speed calculating circuitry which, in operation, uses one or more capture points belonging to the second sub-cluster and calculates a traveling speed of the object.

Abstract: A capture point calculating portion calculates a local maximum point of the intensity of reflection from power profile information. The maximum point calculated by the capture point calculating portion is used as a capture point at which a target object is captured. A capture region calculating portion calculates at least one or more capture regions, each including a capture point. If a plurality of capture regions are calculated, a capture region grouping portion determines whether or not to perform grouping of the capture regions based on a predetermined condition. An object determining portion determines the type of the object (for example, a large vehicle, a small vehicle, a two-wheel vehicle, and a pedestrian) based on the capture region obtained as a result of grouping.

Abstract: A transmission apparatus includes a first transmission section for transmitting communication data using a first communication path in which band control is performed using a dedicated band and an undedicated band; a second transmission section for transmitting communication data using a second communication path in which priority control is performed depending on the priority of communication data; a switching control section for performing switching between the transmission using the first transmission section and the transmission using the second transmission section; and a parameter setting section for setting communication parameters for performing communication using the second communication path in the case that switching is performed from the transmission using the first transmission section to the transmission using the second transmission section.

Abstract: An object detection device includes first information generation circuitry second information generation circuitry, region calculation circuitry, measured value interpolation circuitry, and object determination circuitry. The measured value interpolation circuitry which, in operation, calculates a first interpolated measured value of the first target object region using the second measured value of the second target object region or calculates a second interpolated measured value of the second target object region using the first measured value of the first target object region. The object determination circuitry which, in operation, determines the target object using a combination of the first measured value and the first interpolated measured value or a combination of the second measured value and the second interpolated measured value.

Abstract: A capture region calculation unit calculates a capture point having the local highest reflection intensity in power profile information and calculates a capture region surrounding the capture point. An edge calculation unit calculates the edges of one or more objects from image data. A marker calculation unit calculates a marker from the capture region. A component region calculation unit calculates component regions by extending the marker using the edges. A grouping unit groups component regions belonging to the same object, of the component regions. The object identification unit identifies the types of one or more objects (e.g., large vehicle, small vehicle, bicycle, pedestrian, flight object, bird) on the basis of a target object region resulting from the grouping.

Abstract: A wireless communication apparatus which communicates with at least one wireless station apparatus by utilizing EDCA mechanism includes the following elements. A first channel state determining unit determines a usage state of a communication channel used between the wireless communication apparatus and the wireless station apparatus in a contention period of the communication channel. A first terminal occupation time calculating unit calculates, on the basis of the usage state, a different-terminal occupation time in the contention period of the communication channel. A first traffic measuring unit measures an amount of data received from the wireless station apparatus in the different-terminal occupation time. A first parameter adjusting unit adjusts an EDCA parameter set used in the EDCA mechanism, on the basis of the different-terminal occupation time and the amount of received data. A parameter updating unit updates the EDCA parameter set to an adjusted EDCA parameter set.

Abstract: An object detecting device includes the following elements. Pair formation circuitry forms one or more pairs of each of the one or more first group and an associated second group selected as one or more pairing target groups by selecting from among the one or more second groups. Object region calculation circuitry calculates, on the coordinate system, one or more target object regions for each of the one or more pairs. Object recognition circuitry recognizes, on the coordinate system, each of the one or more target objects based on each of the one or more target object regions.

Abstract: An object detection apparatus includes: capture region extraction circuitry receives measurement information generated by a radar apparatus using reflected waves from each object and uses the measurement information to extract second unit regions as first capture regions from among first unit regions, the first unit regions being regions into which a measuring range of the radar apparatus has been divided, the second unit regions being regions in which each object has been captured; preliminary grouping circuitry that forms a preliminary group including a second capture region that is present within a determined range; feature quantity acquisition circuitry that calculates a feature quantity that represents an association between the preliminary group and the second capture region; discrimination circuitry that discriminates a type of each object that belongs to the second capture region; and object determination circuitry that groups the second capture region according to the type to detect that object.

Abstract: There is provided a wireless communication device that may prevent a degradation of QoS of communications caused by a schedule change. A wireless communication device in a wireless communication system that transits and receives a traffic stream using a millimeter wave includes a schedule generator, a transmitter, and a receiver, the schedule generator generating a schedule for at least one wireless station, which communicates with the wireless communication device, to transmit a plurality of traffic streams, the transmitter transmitting the generated schedule to the wireless station using a broadcast frame, the receiver receiving QoS requests transmitted by the respective wireless stations, each of the QoS requests including a current MCS index and a range of available MCS indexes for transmitting a traffic stream.

Abstract: A method for preparing a grounding substrate for a semiconductor device, the method including: 1) polishing the surface of a matrix of a grounding substrate to remove a carbon layer therefrom, and washing the surface of the matrix with anhydrous ethanol; 2) providing a cold spray system including a spraying device, a spray chamber, and a special fixture disposed in the spray chamber; and disposing the matrix on the special fixture; 3) using the cold spray system to spray a compressed gas carrying aluminum powder on the surface of the matrix at the supersonic speed to form an aluminum coating, thus obtaining the grounding substrate; 4) disposing the grounding substrate in a heat treatment furnace, raising the temperature therein to between 100 and 500° C., and maintaining the temperature for between 1 and 5 hrs; and 5) wet polishing the grounding substrate.

Abstract: There is provided a wireless communication device that may prevent a degradation of QoS of communications caused by a schedule change. A wireless communication device in a wireless communication system that transits and receives a traffic stream using a millimeter wave includes a schedule generator, a transmitter, and a receiver, the schedule generator generating a schedule for at least one wireless station, which communicates with the wireless communication device, to transmit a plurality of traffic streams, the transmitter transmitting the generated schedule to the wireless station using a broadcast frame, the receiver receiving QoS requests transmitted by the respective wireless stations, each of the QoS requests including a current MCS index and a range of available MCS indexes for transmitting a traffic stream.

Abstract: A standby method for a handheld mobile terminal includes acquiring a physical state parameter of the terminal when it is determined that a handheld mobile terminal is in a no-operation state. It can be judged whether the physical state parameter satisfies a corresponding preset standby condition. The terminal is controlled to immediately enter a standby state when the physical state parameter satisfies the corresponding preset standby condition.

Abstract: A transmission apparatus includes a first transmission section for transmitting communication data using a first communication path in which band control is performed using a dedicated band and an undedicated band; a second transmission section for transmitting communication data using a second communication path in which priority control is performed depending on the priority of communication data; a switching control section for performing switching between the transmission using the first transmission section and the transmission using the second transmission section; and a parameter setting section for setting communication parameters for performing communication using the second communication path in the case that switching is performed from the transmission using the first transmission section to the transmission using the second transmission section.