Abstract: A ceramic electronic device includes: a multilayer chip in which each of internal electrode layers and each of dielectric layers are alternately stacked, wherein the multilayer chip has a first capacity region having a first electrostatic capacity C1 and a first inductance L1 and a second capacity region having a second electrostatic capacity C2 and a second inductance L2, wherein the first electrostatic capacity C1, the first inductance L1, the second electrostatic capacity C2 and the second inductance L2 satisfy (C1·L1)/(C2·L2)<0.5 or 1.9<(C1·L1)/(C2·L2).

Abstract: A ceramic electronic device includes: a multilayer chip in which each of internal electrode layers and each of dielectric layers are alternately stacked, wherein the multilayer chip has a first capacity region having a first electrostatic capacity C1 and a first inductance L1 and a second capacity region having a second electrostatic capacity C2 and a second inductance L2, wherein the first electrostatic capacity C1, the first inductance L1, the second electrostatic capacity C2 and the second inductance L2 satisfy (C1·L1)/(C2·L2)<0.5 or 1.9<(C1·L1)/(C2·L2).

Abstract: A ceramic electronic device includes: a multilayer chip in which each of internal electrode layers and each of dielectric layers are alternately stacked, wherein the multilayer chip has a first capacity region having a first electrostatic capacity C1 and a first inductance L1 and a second capacity region having a second electrostatic capacity C2 and a second inductance L2, wherein the first electrostatic capacity C1, the first inductance L1, the second electrostatic capacity C2 and the second inductance L2 satisfy (C1·L1)/(C2·L2)<0.5 or 1.9<(C1·L1)/(C2·L2).

Abstract: Provided is an inspection device for contact strip that enables proper quality control of a collector head using a split-type contact strip. Disclosed is an inspection device for a collector head having an overhead contact line contact assembly that includes a contact strip, including electrically-conductive strip pieces aligned in a series and in a longitudinal direction, and springs elastically supporting the contact strip. The inspection device for a collector head includes a measurer of rigidity of the overhead contact line contact assembly in a thickness direction of the contact strip at multiple points on an axis parallel to the juxtaposition direction of the strip pieces; and a determiner of an abnormality in the collector head by comparison of measurement data of rigidity distribution at the multiple points based on measurement results from the measurer with reference data of rigidity distribution prepared beforehand.

Abstract: According to one embodiment, a telephone system includes a transmitter, a detector, a notification module and a controller. The transmitter transmits an outgoing request from a first server apparatus to a second server apparatus. The detector detects a response from the second terminal apparatus, at the second server apparatus. The notification module analyzes media information received at the second server apparatus from the second terminal apparatus and required to achieve peer-to-peer communication, and notifies the media information to the first server apparatus, when the detector detects the response from the second terminal apparatus. The controller causes the first server apparatus to perform the peer-to-peer communication between the first terminal apparatus and the second terminal apparatus based on the media information notified from the second server apparatus.

Abstract: An object of the present invention is to realize a structure able to well retain contact performance between an overhead line and a slider 7b, across the entire lengthwise direction of the slider 7b. The slider 7b formed of slider elements 34a and 34b divided in the crosswise direction of a vehicle, is supported on the upper surface of a slider support body 9. A center support member 12 forming the slider support body 9 is elastically deformed downward in a concaved shape across the longitudinal direction, due to a load applied due to contact between the overhead lines and the slider 7b. Also, together with this, both ends of the center support member 12 are supported on a shoe body 3a so as to allow free oscillation via the respective end section support members 13.

Abstract: According to one embodiment, a communication system includes a first terminal to be connected to a first communication network, assigned a terminal ID and driven by power supplied from a battery, a server apparatus to be connected to a second communication network differing from the first network, to periodically confirm presences of the first terminal and a second terminal to be connected to the second communication network, and to communication-connect between the first and the second terminals in the case of presences thereof, and a controller which makes the server apparatus monitor that the first terminal is present on the first communication network by a second period longer than a first period monitoring that the second terminal is present on the second communication network.

Abstract: An object of the present invention is to realize a structure able to well retain contact performance between an overhead line and a slider 7b, across the entire lengthwise direction of the slider 7b. The slider 7b formed of slider elements 34a and 34b divided in the crosswise direction of a vehicle, is supported on the upper surface of a slider support body 9. A center support member 12 forming the slider support body 9 is elastically deformed downward in a concaved shape across the longitudinal direction, due to a load applied due to contact between the overhead lines and the slider 7b. Also, together with this, both ends of the center support member 12 are supported on a shoe body 3a so as to allow free oscillation via the respective end section support members 13.

Abstract: A main equipment is used in a network telephone system including telephone terminals and the main equipment. The telephone terminals are connected to a communication network to transmit voice packets. The main equipment connects the telephone terminals to one another through the communication network to cause the telephone terminals to communicate with each other. The main equipment includes a communication unit and a detection unit. The communication unit transmits connection confirmation signals to the telephone terminals at different timings, respectively. The connection confirmation signals are defined by a communication protocol on the communication network. The connection confirmation signals are used to confirm connection between the telephone terminals and the main equipment. The detection unit detects presence of one telephone terminal when the one telephone terminal sends back a response signal in response to the transmission of the connection confirmation signals.

Abstract: According to one embodiment, a telephone system provided with a plurality of telephone exchange apparatuses, wherein each telephone exchange apparatus accommodates a plurality of telephone terminals, includes a route creating unit configured to derive a first communication route being established between a first telephone terminal accommodated in a first telephone exchange apparatus and a second telephone terminal accommodated in a second telephone exchange apparatus, in response to a communication request, a receiving unit configured to receive a switching request from either one of the first and second telephone terminals to switch the first communication route to another communication route, and a determination unit configured to determine a second communication route, based on predetermined conditions for selecting a route, when receiving the switching request, wherein, the first and second telephone exchange apparatuses switch the first communication route to the second communication route based on the d

Abstract: According to one embodiment, a communication system includes a first terminal to be connected to a first communication network, assigned a terminal ID and driven by power supplied from a battery, a server apparatus to be connected to a second communication network differing from the first network, to periodically confirm presences of the first terminal and a second terminal to be connected to the second communication network, and to communication-connect between the first and the second terminals in the case of presences thereof, and a controller which makes the server apparatus monitor that the first terminal is present on the first communication network by a second period longer than a first period monitoring that the second terminal is present on the second communication network.

Abstract: According to one embodiment, a telephone system includes a memory which stores a group table in which a plurality of groups divided and configured by using terminal IDs corresponding to the plurality of interface units are associated with interface units belonging to the groups, and a controller which refers to the group table when connection requests arrive from the IP networks or IP telephone terminals via the control channels and also when the communication channels are selected, preferentially selects idle communication channels in the group to which the control channels with the connection requests arrived thereat based on the reference result, and connects the IP networks or the IP telephone terminals that are request origins via the selected communication channels.

Abstract: A main equipment is used in a network telephone system including telephone terminals and the main equipment. The telephone terminals are connected to a communication network to transmit voice packets. The main equipment connects the telephone terminals to one another through the communication network to cause the telephone terminals to communicate each other. The main equipment includes a communication unit and a detection unit. The communication unit transmits connection confirmation signals to the telephone terminals at different timings, respectively. The connection confirmation signals are defined by a communication protocol on the communication network. The connection confirmation signals are used to confirm connection between the telephone terminals and the main equipment. The detection unit detects presence of one telephone terminal when the one telephone terminal sends back a response signal in response to the transmission of the connection confirmation signals.

Abstract: A telephone exchange apparatus includes a first interface to connect a circuit line being connected at least one of terminal and transmitting a corresponding speech signal, a plurality of second interfaces to connect a communication network including a plurality of speech channels allowing a transmission of a plurality of speech packets and at least one of control channel allowing a transmission of a plurality of control packets, a exchanger which connects between the first interface and at least one of the second interfaces according to a call setting request, and a controller which controls to forward an incoming call to another second interface, when the incoming call arrives through the control channel of the connection network and there exists no available communication channels, in each the second interfaces.

Abstract: A personal computer having a speech recognition board and speech synthesis board are connected to a key service unit via a control information communication path and media information communication path. Upon executing an exchange service, it is checked if that exchange service uses media information. When the service uses media information, up and down channels are set on the media information communication path, and voice guidance and a voice dial signal for voice dialing are transferred via these channels, thus making the personal computer execute speech recognition required for voice dialing and a search process of a callee telephone number on the basis of the recognition result.