Abstract: A method performed by an information terminal is provided. Profile information of an electrical device connected to a storage battery pack is received from the storage battery pack. The profile information includes device identification information of the electrical device and an item of state information indicating a state of the electrical device. A value of the item of state information of the electrical device is received from the storage battery pack. When a first instruction that causes the item of state information and the value of the item of state information to be displayed is received, a first display screen is displayed on the display of the information terminal. The first display screen depicts the item of state information and the value of the item of state information by using the received profile information and the received value of the item of state information.

Abstract: A method performed by an information terminal is provided. Profile information of an electrical device connected to a storage battery pack is received from the storage battery pack. The profile information includes device identification information of the electrical device and an item of state information indicating a state of the electrical device. A value of the item of state information of the electrical device is received from the storage battery pack. When a first instruction that causes the item of state information and the value of the item of state information to be displayed is received, a first display screen is displayed on the display of the information terminal. The first display screen depicts the item of state information and the value of the item of state information by using the received profile information and the received value of the item of state information.

Abstract: A storage battery pack includes: a secondary battery; a connector that is detachably connected to electrical devices that operate with power of the secondary battery; a storage that stores different profile information for each of the electrical devices, the profile information including device identification information identifying the electrical devices and item of state information indicating state of the electrical device; a first communicator that receives, from an electrical device connected to the connector, the device identification information and value of the item of state information of the electrical device; a specifier that specifies the profile information corresponding to the electrical device connected to the connection device by using the device identification information of the electrical device connected to the connector; and a second communicator that transmits, to an external information device, the profile information specified by the specifying device and the value of the item of state

Abstract: In a method, when a first information terminal, which is provided with a wireless communication device capable of communicating with a first wireless communication device provided in a storage battery pack and which retains first identification information indicating a user of the storage battery pack, comes into close proximity with the first wireless communication device (S11), the first information terminal is registered in registration information as a first type of information terminal capable of altering the registration information, the registration information being stored in a storage device provided inside or outside of the storage battery pack, and being of information terminals capable of acquiring information relating to the storage battery pack stored in the storage device (S12).

Abstract: A battery pack has a communicator storing various communication protocols. When new hardware is connected thereto, the battery pack sequentially transmits a respective communication request signal to request communication with the hardware using a stored communication protocol, and establishes communication. The battery pack transmits the communication request signal using a standard such as a compatibility priority among communication protocols, a frequency priority for communication protocols used according to a history record, a communication speed priority for communication protocols, and so on, thereby achieving quick establishment of communication.

Abstract: In a method, when a first information terminal, which is provided with a wireless communication device capable of communicating with a first wireless communication device provided in a storage battery pack and which retains first identification information indicating a user of the storage battery pack, comes into close proximity with the first wireless communication device (S11), the first information terminal is registered in registration information as a first type of information terminal capable of altering the registration information, the registration information being stored in a storage device provided inside or outside of the storage battery pack, and being of information terminals capable of acquiring information relating to the storage battery pack stored in the storage device (S12).

Abstract: A storage battery pack includes: a secondary battery; a connector that is detachably connected to electrical devices that operate with power of the secondary battery; a storage that stores different profile information for each of the electrical devices, the profile information including device identification information identifying the electrical devices and item of state information indicating state of the electrical device; a first communicator that receives, from an electrical device connected to the connector, the device identification information and value of the item of state information of the electrical device; a specifier that specifies the profile information corresponding to the electrical device connected to the connection device by using the device identification information of the electrical device connected to the connector; and a second communicator that transmits, to an external information device, the profile information specified by the specifying device and the value of the item of state

Abstract: A battery pack has a communicator storing various communication protocols. When new hardware is connected thereto, the battery pack sequentially transmits a respective communication request signal to request communication with the hardware using a stored communication protocol, and establishes communication. The battery pack transmits the communication request signal using a standard such as a compatibility priority among communication protocols, a frequency priority for communication protocols used according to a history record, a communication speed priority for communication protocols, and so on, thereby achieving quick establishment of communication.

Abstract: A communication apparatus which, in an ad-hoc network, when receiving control packets from a plurality of terminals, can determine whether or not there is a collision among the control packets, and, based on the determination, can be prevented from continuing to be out of the network due to a collision among the control packets transmitted from the plurality of terminals. In the communication terminal, a communication section receives a control packet which periodically comes up on a communication path.

Abstract: A frequency band is divided into N subchannels. Sub-channels are first allocated for a power line communication system having a higher priority, such as public communication or the like. Sub-channels for a power line communication system having a relatively low priority, such as in-home communication or the like, are allocated from free subchannels. In this case, the subchannels used by the power line communication system having the high priority are limited to a plurality of consecutive subchannels from an upper side or a lower side of the frequency band.

Abstract: A terminal of the present invention comprises a control frame detection portion of detecting a control frame issued from a control station, a control frame memory portion of storing control information contained in the control frame, a substitute frame issuance determination portion of determining to issue a substitute frame when the control frame is not detected until a predetermined first time period is elapsed, and a substitute frame issuance portion of creating a frame which is the same as or equivalent to the control frame, as the substitute frame, based on the control information stored in the control frame memory portion when the substitute frame issuance determination portion determines to issue the substitute frame, and issuing the created substitute frame.

Abstract: A coexistence controller which performs management and control of time division for coexistence, is provided in a power line communication modem which has a function as a QoS controller for a QoS type communication system and a power line communication modem for a best-effort type communication system. In the QoS type communication system, by controlling allocation of a communication band in accordance with priorities given to the communication systems by cooperation of the coexistence controller and the QoS controller, the power line communication systems having different schemes can coexist.

Abstract: A communication system includes a synchronizing signal generator that generates a synchronizing signal based on a timing of an alternating waveform in a power line, a data communicating circuit that performs the data communication, and a communication controller that controls to acquire a transmitting right utilizing a timing of the synchronizing signal and to control the communication circuit in accordance with whether or not the communication apparatus acquires the transmitting right.

Abstract: A communications device 100, which performs data communication, includes an AC cycle sensor 30 which is connected to a power line 106 supplied with an a.c. voltage and generates a synchronous signal SS at timing of an a.c. voltage waveform AC of the power line 106; a data communicator 10 for performing data communication; and a communications controller 20 which performs communication of a control signal including information showing at least one of a communications device and a communications standard and controls the data communicator 101. When the a.c. voltage supplied to the power line 106 is an N-phase and when the cycle of the a.c. voltage waveform is T, data communication to be performed in a communication period subsequent to the period is controlled on the basis of the control signal included in the period of T/2M on condition that M is a natural multiple of N.

Abstract: A communication apparatus, which is capable of allowing a plurality of communication systems respectively having different types of communication modes to coexist with one another on a single communication medium, satisfying Qos requirements with the use of only a simple configuration thereof, and minutely setting an exclusive use rate of a medium, is provided. A coexistence signal cycle T 209 is divided into M time periods by a communication slot unit 207 which is constituted of N communication slots. At least one communication slot in the communication slot unit 207 is defined as a “D-Slot” which can obtain a communication right M/X times during the coexistence signal cycle T 209, and remaining communication slots other than the D-Slot in the communication slot unit 207 is defined as “S-Slots” which can obtain the communication right M times during the coexistence signal cycle T 209.

Abstract: A communication system (1) is provided with a plurality of communication apparatuses (11-15) for performing communication by using a power line (4), the communication system sharing the power line with other communication systems (2, 3). In the communication system, at least one of the plurality of communication apparatuses has: an region detecting device (101) for detecting a communicable region that can be used by the communication system, from a plurality of communicable regions divided at least by time; a declaring device (104) for declaring at least one portion of the detected communicable region, as a communicable region that is used by the communication system, to the other communication systems; and a notifying device (105) for notifying the plurality of communication apparatuses of the declared communicable region, each of the plurality of communication apparatuses performing communication in the notified communicable region.

Abstract: A coexistence controller which performs management and control of time division for coexistence, is provided in a power line communication modem which has a function as a QoS controller for a QoS type communication system and a power line communication modem for a best-effort type communication system. In the QoS type communication system, by controlling allocation of a communication band in accordance with priorities given to the communication systems by cooperation of the coexistence controller and the QoS controller, the power line communication systems having different schemes can coexist.

Abstract: A terminal for performing multiple access transmission suitable to a transmission path having varied characteristics includes a transmission/reception section, a control unit, a transfer management section, and an external interface section. Specifically, the terminal refers to an IGMP (MLD) message received by the transmission/reception section to classify a transmitter host and a relay device of the message based on a characteristic of the transmission path, and performs a multiple access transmission of a multicast packet in a form suitable to the characteristic of the transmission path.

Abstract: A terminal of the present invention comprises a control frame detection portion of detecting a control frame issued from a control station, a control frame memory portion of storing control information contained in the control frame, a substitute frame issuance determination portion of determining to issue a substitute frame when the control frame is not detected until a predetermined first time period is elapsed, and a substitute frame issuance portion of creating a frame which is the same as or equivalent to the control frame, as the substitute frame, based on the control information stored in the control frame memory portion when the substitute frame issuance determination portion determines to issue the substitute frame, and issuing the created substitute frame.

Abstract: A coexistence controller which performs management and control of time division for coexistence, is provided in a power line communication modem which has a function as a QoS controller for a QoS type communication system and a power line communication modem for a best-effort type communication system. In the QoS type communication system, by controlling allocation of a communication band in accordance with priorities given to the communication systems by cooperation of the coexistence controller and the QoS controller, the power line communication systems having different schemes can coexist.