Abstract: A throughput estimation system according to the present invention comprises, in a space in which a first communication device that generates a beacon is installed, a radio wave receiver having a plurality of antennas that receive the beacon transmitted from the first communication device, and a processor that processes a reception measurement result from the radio wave receiver. On the basis of beacon reception power received by each of the plurality of antennas and the number of the plurality of antennas that detected the beacon, the processor estimates the throughput between the first communication device and a second communication device assumed to be installed in the vicinity of the site at which the beacon was received within the space.

Abstract: A radio wave measurement method used in a transmitter and a receiver, includes transmitting a radio wave from the transmitter, receiving the radio wave by the receiver through a scatterer, measuring, a plurality of times, reception qualities of the radio waves received by the reception antenna of the main reception surface and received respectively by the reception antennas of the plurality of sub-reception surfaces while changing a position of the receiver, and determining a position of the receiver when the reception quality of the radio wave corresponding to the reception antenna of the main reception surface and the reception qualities of the radio waves corresponding to the plurality of sub-reception surfaces satisfy a predetermined condition as a measurement position used for derivation of a material constant of the scatterer.

Abstract: A radio wave measurement method used in a transmitter and a receiver, includes transmitting a radio wave from the transmitter, receiving the radio wave by the receiver through a scatterer, measuring, a plurality of times, reception qualities of the radio waves received by the reception antenna of the main reception surface and received respectively by the reception antennas of the plurality of sub-reception surfaces while changing a position of the receiver, and determining a position of the receiver when the reception quality of the radio wave corresponding to the reception antenna of the main reception surface and the reception qualities of the radio waves corresponding to the plurality of sub-reception surfaces satisfy a predetermined condition as a measurement position used for derivation of a material constant of the scatterer.

Abstract: Sensing device (2) is to be mounted in a storage unit. Sensing device (2) includes: a plurality of sensors (4) to be provided on a predetermined surface of the storage unit; a determiner that determines an inner state of the storage unit, based on sensing results of the plurality of sensors (4); and a report unit that reports a determination result of the determiner.

Abstract: A network operation management system includes: an imaging unit configured to capture a video image in a predetermined sight of the area; a wireless management unit configured to obtain operational information of the wireless terminal, and to manage the obtained operational information in association with an obtained date; and a video image management unit configured to receive a video image and a captured date captured by the imaging unit, and to manage the video image in association with the captured date. The video image management unit obtains the operational information and the obtained date from the wireless management unit, manages the video image associated with a captured date which matches with the obtained date, in association with the operational information, and extracts the video image and the operational information associated with a predetermined date.

Abstract: A network operation management system includes: an imaging unit configured to capture a video image in a predetermined sight of the area; a wireless management unit configured to obtain operational information of the wireless terminal, and to manage the obtained operational information in association with an obtained date; and a video image management unit configured to receive a video image and a captured date captured by the imaging unit, and to manage the video image in association with the captured date. The video image management unit obtains the operational information and the obtained date from the wireless management unit, manages the video image associated with a captured date which matches with the obtained date, in association with the operational information, and extracts the video image and the operational information associated with a predetermined date.

Abstract: In response to a video and audio bandwidth allocation request command signal and an audio bandwidth allocation request command signal from a source device, a coordinator device allocates a first reservation period for transmitting AV stream data from the source device to a sink device and a second reservation period for transmitting audio stream data from the source device to a sink device within a predetermined frame period, and transmits a beacon signal including information on allocation of the first reservation period and the second reservation period.

Abstract: A source device combines right-eye video frame data with left-eye video frame data into combined video frame data every video frame. Then, the source device generates a plurality of packets by dividing the combined video frame data into packets so as to insert information on a horizontal position for a horizontal display time interval and information on a vertical position for a vertical display time interval of a first pixel of the combined video frame data stored in the packets, into a header of each packet for transmitting the combined video frame data, as information for identifying right-eye video frame data and left-eye video frame data.

Abstract: A wireless node device receives data island packets from an HDMI device with a time cycle, and prohibits wireless transmission of a data island notification message when a video output format and an audio output format included in the data island packet are the same as a video output format and an audio output format included in the data island packet, respectively.

Abstract: A source device transmits an output format notify message for video data to a sink device before transmitting the video data to the sink device, the output format notify message including a 3D field storing data for identifying whether the video data to be transmitted is two-dimensional video data or three-dimensional video data transmitted using frame packing. In response to this, the sink device identifies a type and a format structure of the video data, and decodes the received video data based on the identified type and format structure of the video data.

Abstract: A source device counts a clock CLKpixel for pixel data using a transmitting counter, adds a counted value Csource(t) of the transmitting counter at a timing of transmitting a video packet Pvideo to the sink device to a header part of the video packet Pvideo as a time stamp value Csource(t), and transmits the video packet Pvideo to the sink device. The sink device receives the video packet Pvideo, extracts the time stamp value Csource(t) from the header part of the video packet Pvideo, generates a fixed reference clock CLKref based on the counted value Csource(t) of the transmitting counter using a first PLL, circuit, and generates the clock CLKpixel for the pixel data of the source device based on the reference clock CLKref using a second PLL circuit.

Abstract: A sink device transmits a video information message to the source device, the video information message including video format information identifiers for identifying video formats supported by the sink device, which are selected from among a plurality of video format information identifiers for identifying video formats each including a resolution of the video data and a type of the video data, and a three-dimensional transmission method for three-dimensional video data when the type of the video data is the three-dimensional video data including first and second video frame data.

Abstract: In a wireless communication system including a source device for wirelessly transmitting a video signal, and a sink device for receiving the wirelessly transmitted video signal and displaying the received video signal on a display, the sink device reads out EDID information from a ROM and wirelessly transmits a wireless data signal including the EDID information to the source device. The source device wirelessly receives the wireless data signal including the EDID information and wirelessly transmitted from the sink device, and wirelessly transmits the video signal to the sink device based on the EDID information.

Abstract: A wireless node device determines an origination port number, communicates with the wireless node device to exchange a destination port number determined by the wireless node device and the origination port number determined by the wireless node device, and associates the origination port number with the destination port number. Further, the wireless node device input formats supported by the wireless node device, reserves wireless resources for wirelessly transmitting the content data, determines one of the obtained input formats as an output format and notifies the wireless node device of the determined output format, and wirelessly transmits the content data to the wireless node device through a pair of ports indicated by the origination port number and the destination port number associated with each other.

Abstract: When a wired interface circuit receives a CEC message destined for a node device connected through a wireless transceiver circuit, a CEC controller of a wireless node device outputs an ACK for the received CEC message from the wired interface circuit, and transmits a wireless data packet containing contents of the CEC message from the wireless transceiver circuit. The CEC controller also waits for the wireless interface transceiver circuit to receive a wireless ACK packet for the transmitted wireless data packet.

Abstract: A sink device wirelessly transmits a device capability response message to a source device. The device capability response message includes a video information message including at least one video format identification code (VIC) for identifying a video format of video data, which the sink device can display, and a coded video information message including compressing parameters for compressing video data. The VIC includes a VIC for 4k2k video data having 3840 or 4096 effective horizontal pixels and 2160 effective vertical pixels.

Abstract: In a wireless communication system including a source device and a sink device for wirelessly transmitting and receiving a CEC message specified in an HDMI standard, a CEC controller of the source device generates and outputs a CEC frame including the CEC message. A controller generates a wireless data packet including the CEC message in the generated CEC frame. A wireless transceiver circuit wirelessly transmits a wireless signal including the generated wireless data packet to the sink device, and receives a wireless signal including a wireless ACK packet and wirelessly transmitted from the sink device in response to the wireless data packet in the wirelessly-transmitted wireless signal.

Abstract: A source device combines right-eye video frame data with left-eye video frame data into combined video frame data every video frame. Then, the source device generates a plurality of packets by dividing the combined video frame data into packets so as to insert information on a horizontal position for a horizontal display time interval and information on a vertical position for a vertical display time interval of a first pixel of the combined video frame data stored in the packets, into a header of each packet for transmitting the combined video frame data, as information for identifying right-eye video frame data and left-eye video frame data.

Abstract: An audio frame format includes a channel field indicating a number of audio multi-channels, an ignore bit indicating whether or not an audio sample is present in a predetermined region of a packet format, and an A channel audio sample field for transmitting the audio sample. Further, the audio frame format includes a B channel audio sample field for transmitting the audio sample, and a payload of the packet that includes a repetition of an audio frame.

Abstract: An adapter device connected to a source device wirelessly receives an EDID response message signal including data on a plurality of video display formats and a plurality of audio output formats of the sink device from an adapter device.