Abstract: An electronic component achieves significantly improved adhesion strength between an external electrode and a substrate body and includes an insulative substrate body, at least one groove disposed in at least one main surface of the substrate body, at least one external electrode disposed on the at least one main surface of the substrate body, wherein a portion of the at least one external electrode is disposed in at least a portion of the groove.

Abstract: A communications apparatus, enabling an efficient data transfer without an environmental restriction, notifies a transmission-side apparatus (200) connected via a network (300) of data amount in a window size, and receives data as large as the window size, the data which is transmitted from the transmission-side apparatus (200). The communications apparatus includes: a receiving buffer memory (120) having a region for storing a data packet transmitted from the transmission-side apparatus (200); a communications protocol processing unit (130) notifying the transmission-side apparatus (200) of the window size larger than a capacity of the receiving buffer memory (120), receiving the data packet transmitted from the transmission-side apparatus (200) according to the notified window size, and storing the received data packet in the receiving buffer memory (120); and a central controlling unit (140) retrieving the data packet stored in the receiving buffer memory (120) and processing the retrieved data packet.

Abstract: Each of PLC modems 11 through 14 that perform communication using a PLC network 1 manages a priority management table that contains, for each of a plurality of data exchanged using a common transmission line, (i) a main priority (original), (ii) a main priority (changed), and (iii) a sub-priority. For example, when the PLC modem 11 detects congestion, the PLC modem 11 searches its priority management table for a stream that has the same main priority (original) as and a lower sub-priority than data transmitted by the PLC modem 11. The PLC modem 11 then transmits, to the PLC modem that transmits the stream found as a result of the above search, a notification signal notifying that the data transmitted by the PLC modem 11 has a high sub-priority.

Abstract: There is provided 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: Provided is a communication terminal device that reduces, in a network using a power line, the percentage of bands consumed for transmission of control packets in the bands consumed for all the communication, so as to ensure transmission of data intended to be transmitted. A PLC terminal F701 connected to the network of power line communication transmits, when having determined that the terminal does not receive from the network a beacon for a predetermined period of time, a beacon request packet to the network, using a modulation method having the lowest communication speed among the modulation methods that can be used in the network.

Abstract: A communication apparatus and a communication method capable of avoiding the transmission rate from being unnecessarily suppressed so as to improve the communication rate between devices, for example, in a home network. A communication apparatus (100) comprises a congestion control determining part (104) that determines, based on IP addresses of the communication apparatus (100) and a communication apparatus (500) on the other end of communication, which are information about the positions of those communication apparatuses on a network, whether a congestion control is necessary in the network when the communication apparatus (100) implements a transmission to the communication apparatus (500) on the other end of communication; and a transmission rate control part (101) that controls the data transmission rate in accordance with the necessity of the congestion control.

Abstract: A communication apparatus of the present invention is used in the network where data communication is performed, and includes: a priority data information holding section for holding, in advance, QoS setting information corresponding to domain names, which QoS setting information is necessary to perform QoS setting for data communicated in the network; a control packet snooping section for snooping on a DNS packet received from a DNS server, and obtaining a domain name contained in the DNS packet; and a priority control setting section for, when QoS setting information corresponding to the obtained domain name is contained in the QoS setting information held in the priority data information holding section, performing, based on the QoS setting information, QoS setting for data communication performed by a communication apparatus which is the transmission source of the DNS packet.

Abstract: To provide a communication apparatus which is capable of voluntarily controlling, according to its own reception capability, data transmission traffic, while reducing the burden for the control. The communication apparatus includes: a communication unit (35) which receives data; an ACK generating unit (45) which generates an ACK packet and transmit the ACK packet to a transmitting side apparatus (38), the ACK packet indicating a response to the transmitting side apparatus (38), the response corresponding to the data received by the communication unit (35); and a window updating notification generating unit (46) which generates a window updating notifying packet and transmit the window updating notifying packet to the transmitting side apparatus (38) irrespective of a result of the data reception by the communication unit (35), the window updating notifying packet requesting the transmitting side apparatus (38) to transmit data.

Abstract: A communication apparatus for communicating by commonly sharing a transmission channel with another communication apparatus which performs a data transmission, comprising: a transmitting unit which transmits first data at first timing and second data at second timing subsequent to the first timing to the transmission channel; and an information adding unit which adds time slot information to the first data, the time slot information indicating a time slot during which the second data is transmitted prior to the data transmission performed by the other communication apparatus.

Abstract: A microcomputer comprises: a memory which stores a predetermined program; a CPU which reads the program stored in the memory based on a predetermined instruction to perform a predetermined calculation; and a read controller which controls reading of the program from the memory, and the microcomputer further comprises: a plurality of memory areas disposed in the memory and having distinction bits; distinction unit for distinguishing the memory areas using the different distinction bits; and read access controller for prohibiting the reading from the memory area in which another program is stored based on a distinction result of the distinction unit.

Abstract: A microcomputer comprises: a memory which stores a predetermined program; a CPU which reads the program stored in the memory based on a predetermined instruction to perform a predetermined calculation; and a read controller which controls reading of the program from the memory, and the microcomputer further comprises: a plurality of memory areas disposed in the memory and having distinction bits; distinction unit for distinguishing the memory areas using the different distinction bits; and read access controller for prohibiting the reading from the memory area in which another program is stored based on a distinction result of the distinction unit.