Abstract: A first power receiving apparatus observes a power transfer signal from a power supply apparatus, and detects whether power transfer is being performed between the power supply apparatus and a second power receiving apparatus. When the power transfer is being performed between the power supply apparatus and the second power receiving apparatus, a waveform of the signal is deformed with a predetermined pattern. The second power receiving apparatus detects deterioration in power which is received from the power supply apparatus and detects whether the waveform of the signal changes with the predetermined pattern within a predetermined time after detecting the power deterioration. When detecting the change in the waveform of the signal with the predetermined pattern, the second power receiving apparatus determines that the first power receiving apparatus is in a power suppliable range of the power supply apparatus.

Abstract: A communication apparatus includes first communication means having a first communication function for wirelessly communicating with a partner apparatus, and second communication means having an electric power supply function for wirelessly supplying electric power to the partner apparatus and a second communication function for wirelessly communicating with the partner apparatus. The second communication function is for transmitting specific data sequence to the partner apparatus in response to reception of specific data from the partner apparatus, and the electric power supply function is for supplying electric power to the partner apparatus in a case of receiving from the partner apparatus, with the first communication means, a signal indicating that the partner apparatus has received the data sequence.

Abstract: An apparatus includes a recognition unit configured to recognize a function included in a communication partner and a determination unit configured to determine processing, which the communication partner performs on transmission data, according to the recognized function and a type of the transmission data.

Abstract: An apparatus includes a recognition unit configured to recognize a function included in a communication partner and a determination unit configured to determine processing, which the communication partner performs on transmission data, according to the recognized function and a type of the transmission data.

Abstract: By controlling a plurality of communication apparatuses, when determining the communication channel used by each apparatus, conducting determination of channel allocation priority order of communication apparatuses, based on the extracted load information of the communication apparatus. Based on the determined channel allocation priority order, setting the communication channels as they should be set, in case the other communication apparatus can not conduct communication in the channels the aforementioned channel is set, the channel is allocated as the channel used by the communication apparatus.

Abstract: A wireless communication apparatus that transmits data in certain communication interval to a receiving apparatus, using one or more communication channels among a plurality of adjacent communication channels, is provided. The apparatus includes: a setting unit configured to set the one or more communication channels for transmitting the data; a transmission unit configured to transmit the data using the one or more set communication channels; and a detection unit configured to detect interference with other wireless communication apparatuses, when the transmission unit transmits the data using the one or more set communication channels; wherein the setting unit changes the number of the one or more communication channels based on a time duration that the data transmission has been restrained due to the detected interference, and the communication interval.

Abstract: The disclosure relates to a wireless power transfer system composed of a power transmission apparatus including power transmission elements configured to transmit power and a power reception apparatus including power reception elements configured to receive the power. The wireless power transfer system communicates information related to the power transmission elements or the power reception elements between the power transmission apparatus and the power reception apparatus and selects a combination of the power transmission element and the power reception element used for wireless power transfer among plural combinations of the power transmission elements and the power reception elements by using the communicated information.

Abstract: The present invention provides an antenna in which first and second conductors each having a first width are spirally arranged on first and second planes, respectively, such that a conductor-to-conductor distance is equal to a second width, and an inter ends of spirals of the first and second conductors are connected with a conductor. In this antenna, the direction in which the spiral of the first conductor runs from its outer end to its inter end and the direction in which the spiral of the second conductor runs from its inter end to its outer end correspond to each other, the first width is greater than or equal to the second width, and the first and second conductors are alternately arranged in at least a portion thereof as viewed in a radius direction from an axis of the spiral.

Abstract: A loop antenna includes a parasitic element arranged at a position almost concentric to a loop element and having an opening portion smaller than the half perimeter of the loop element at a position opposite to the feeding point of the loop element.

Abstract: An information communication device has a storage medium that stores information to determine a target information communication device on a network. A selection unit selects at least one protocol from plural protocols for obtaining information on other information communication devices on the basis of the stored information. A generating unit generates a list of information communication devices that have the at least one selected protocol as target information communication devices which a user can select on the network.

Abstract: A loop antenna includes a parasitic element arranged at a position almost concentric to a loop element and having an opening portion smaller than the half perimeter of the loop element at a position opposite to the feeding point of the loop element.

Abstract: A method of communication in a communication apparatus includes steps of suppressing communication with a first communication device, which has been connected to a first communication interface, in accordance with data from the first communication device; establishing communication with a second communication device by a second communication interface; removing suppression of communication with the first communication device after communication with the second communication device has been established; and communicating data between the first and second communication devices via the first communication and second communication interfaces.

Abstract: A wireless communication apparatus recognizes whether an information input apparatus is in a wirelessly communicable state at periods shorter than a disconnection waiting time in an information transfer protocol which transfers information between the information input apparatus and an information output apparatus. If the wireless communication apparatus recognizes that the information input apparatus is not in the wireless communicable state, it permits and expedites processing of a request for connection with the information output apparatus sent from another information input apparatus over a wireless network.

Abstract: A determination is made as to whether a communication apparatus is a data sender or a data recipient and, based on the results of the determination, it is determined whether the apparatus constructs a network or joins a constructed network.

Abstract: An apparatus includes a recognition unit configured to recognize a function included in a communication partner and a determination unit configured to determine processing, which the communication partner performs on transmission data, according to the recognized function and a type of the transmission data.

Abstract: By controlling a plurality of communication apparatuses, when determining the communication channel used by each apparatus, conducting determination of channel allocation priority order of communication apparatuses, based on the extracted load information of the communication apparatus. Based on the determined channel allocation priority order, setting the communication channels as they should be set, in case the other communication apparatus can not conduct communication in the channels the aforementioned channel is set, the channel is allocated as the channel used by the communication apparatus.

Abstract: A wireless communication apparatus that transmits data in certain communication interval to a receiving apparatus, using one or more communication channels among a plurality of adjacent communication channels, is provided. The apparatus includes: a setting unit configured to set the one or more communication channels for transmitting the data; a transmission unit configured to transmit the data using the one or more set communication channels; and a detection unit configured to detect interference with other wireless communication apparatuses, when the transmission unit transmits the data using the one or more set communication channels; wherein the setting unit changes the number of the one or more communication channels based on a time duration that the data transmission has been restrained due to the detected interference, and the communication interval.

Abstract: A wireless communication apparatus having a wired interface for wired connection to a terminal device and a wireless unit for connection to a terminal device wirelessly discriminates the state of power supply at start-up and, based upon the result of discrimination, relays data communication between the terminal device connected to the wired interface and another terminal device connected by the wireless unit.

Abstract: After a first wireless terminal device transitions to a Direct Link Protocol mode, the terminal device transmits an ICMP_echo_request signal directly to a second wireless terminal device and, upon receiving an ICMP_echo_reply signal from the second wireless terminal device within a fixed period of time, counts up the number of times there is a reply. If the ICMP_echo_reply signal is not received within a fixed period of time, then the first wireless terminal device counts up the number of non-replies. As a result, the first wireless terminal device can readily judge whether it is capable of communicating directly with the second wireless terminal device in the Direct Link Protocol mode.

Abstract: To determine an appropriate transmission rate more efficiently in communication which uses multiple-input multiple-output technique, a communication apparatus which selects one of a plurality of transmission rates determined by a set of modulation schemes for streams and communicates with an external device using the MIMO technique of performing transmission using a plurality of streams includes a change unit which changes the transmission rate, and a determination unit which determines, based on a transmission power to be allocated to each stream and the modulation scheme of each stream, the transmission rate to be changed by the change unit so as to make the power per bit of each stream at the transmission rate after change remain unchanged or increase.