Abstract: In an isolator, frequency mixers are connected to each other in tandem, a local oscillator is connected to both of the frequency mixers and configured to input a local signal with the same frequency to both of the frequency mixers, the frequency of the signal input to one of the frequency mixers is up-converted by the local signal, then input to the other of the frequency mixers and down-converted, a phase delayer is configured to delay the phase of the signal with the frequency up-converted by the frequency mixer, and a phase shifter is configured to convert the phase of the local signal to cause the phase difference between the two frequency mixers.

Abstract: A control device that controls a communication system in which a network device and a virtual network device on a cloud communicate with each other through a tunnel, the control device including: a calculation unit that calculates a predicted value of the number of future setting entries in the virtual network device; an autoscale execution unit that executes scale-out or scale-in of the virtual network device on the basis of a result of comparison between the predicted value and a threshold; and a control unit that performs routing control between an application and the virtual network device in a service platform on the cloud.

Abstract: A device with buttons includes: a display unit that is configured to perform predetermined display; and a plurality of buttons that are positioned on a lower side of the display unit. An area of a button to be most frequently used is the largest among areas of the plurality of buttons.

Abstract: [Object] To provide a temperature control apparatus that has a high degree of freedom in designing a heat exchanger and that is excellent in versatility in terms of the temperature of a circulating liquid even when a high-temperature circulating liquid is used. [Solution] A temperature control apparatus 1 includes a circulation circuit 12 that delivers a circulating liquid from the main tank 5 to a load that is external and returns the circulating liquid received from the load to the main tank again, a cooling circuit 25 that cools the circulating liquid delivered from a sub-tank 20 with a heat exchanger 33 and returns the circulating liquid to the sub-tank again, and a control unit 40 that controls the flow rate of the circulating liquid flowing through the cooling circuit. The sub-tank is connected to the main tank so as to be capable of leading excessive circulating liquid out of the main tank.

Abstract: There is provided a head-rest of a car sheet which is configured to includes: a skin configured to cover a surface of the head-rest; a foamed material filled in the head-rest covered by the skin; and a stay extending to an outside from the skin in which the foamed material is filled, wherein the head-rest has a gate shape by indenting a center portion of a lower surface of the head-rest, and a groove portion is formed at the indented center portion of the gate shape by making end portions of the skin abut against each other, and members which are softer than the skin are seamed to the respective end portions of the skin which abut against each other in the groove portion.

Abstract: There is provided a head-rest of a car sheet which is configured to includes: a skin configured to cover a surface of the head-rest; a foamed material filled in the head-rest covered by the skin; and a stay extending to an outside from the skin in which the foamed material is filled, wherein the head-rest has a gate shape by indenting a center portion of a lower surface of the head-rest, and a groove portion is formed at the indented center portion of the gate shape by making end portions of the skin abut against each other, and members which are softer than the skin are seamed to the respective end portions of the skin which abut against each other in the groove portion.

Abstract: A low-noise wide band amplifier is realized utilizing a superconductor-insulator-superconductor (SIS) junction, quasiparticle frequency mixers connected in tandem or in cascade, a first quasiparticle mixer performs first frequency mixing with use of a first local signal having a frequency not less than twice a frequency of an input signal to the first quasiparticle mixer, a second quasiparticle mixer performs second frequency mixing with use of a second local signal having a frequency not more than twice a frequency of an input signal to the second quasiparticle mixer, and signal amplification is performed through frequency conversion by extracting, from among a plurality of signals generated with the first and the second frequency mixing, a signal in a frequency band not more than a frequency band of the signal before the first frequency mixing and the second frequency mixing, using a transmission line or a filter.

Abstract: A low-noise wide band amplifier is realized utilizing a superconductor-insulator-superconductor (SIS) junction, quasiparticle frequency mixers connected in tandem or in cascade, a first quasiparticle mixer performs first frequency mixing with use of a first local signal having a frequency not less than twice a frequency of an input signal to the first quasiparticle mixer, a second quasiparticle mixer performs second frequency mixing with use of a second local signal having a frequency not more than twice a frequency of an input signal to the second quasiparticle mixer, and signal amplification is performed through frequency conversion by extracting, from among a plurality of signals generated with the first and the second frequency mixing, a signal in a frequency band not more than a frequency band of the signal before the first frequency mixing and the second frequency mixing, using a transmission line or a filter.

Abstract: A foaming die device for forming a headrest is provided, which comprises a lower die having a first protrusion and an upper die having a second protrusion. The lower and upper dies are used for accommodating a trim cover assembly with a headrest stay portion extending outwardly through a stay passage hole formed in the trim cover assembly. The first and second protrusions are adapted to press and turn over a projected area created about the stay passage hole into the inside of that trim cover assembly. Also, a foaming process for forming the headrest, using this foaming die device, is provided, in which the projected area is turned over by the first and second protrusions into the trim cover assembly when placing the trim cover assembly in the dies. Hence, conventional preliminary steps using cylindrical stick to turn over the projected area into the trim cover assembly are eliminated.

Abstract: A foaming die device for forming a headrest is provided, which comprises a lower die having a first protrusion and an upper die having a second protrusion. The lower and upper dies are used for accommodating a trim cover assembly with a headrest stay portion extending outwardly through a stay passage hole formed in the trim cover assembly. The first and second protrusions are adapted to press and turn over a projected area created about the stay hole into the inside of that trim cover assembly. Also, a foaming process for forming the headrest, using this foaming die device, is provided, in which the projected area is turned over by the first and second protrusions into the trim cover assembly when placing the trim cover assembly in the dies. Hence, conventional preliminary steps using cylindrical stick to turn over the projected area into the trim cover assembly are eliminated.

Abstract: A foaming die device for forming a headrest is provided, which comprises a lower die having a first protrusion and an upper die having a second protrusion. The lower and upper dies are used for accommodating a trim cover assembly with a headrest stay portion extending outwardly through a stay passage hole formed in the trim cover assembly. The first and second protrusions are adapted to press and turn over a projected area created about the stay hole into the inside of that trim cover assembly. Also, a foaming process for forming the headrest, using this foaming die device, is provided, in which the projected area is turned over by the first and second protrusions into the trim cover assembly when placing the trim cover assembly in the dies. Hence, conventional preliminary steps using cylindrical stick to turn over the projected area into the trim cover assembly are eliminated.

Abstract: In a radio paging system and a radio paging method, in which all transmitters are simply synchronized with each other with a satisfactory precision. A central exchange and each transmitter are each provided with a GPS clock for measuring time according to a current time transmitted from the GPS clock. An encoder of the central exchange adds to a message received from a network a real time, which is information to specify time to send the message from each transmitter, according to the current time measured by the GPS clock thereof and then distributes the message to the transmitters. A synchronizing section of each transmitter sends from a transmitting unit the message distributed from the central exchange to a receiver at a time specified by the real time added to the message according to the current time measured by the GPS clock thereof.

Abstract: A radio communication system including a network connecting apparatus for establishing communication between a mobile subscriber terminal and another subscriber terminal and a plurality of radio base stations. At least one wired communication line connects the network connecting apparatus to the plurality of radio base stations, and further control signal communication is enabled at least between the plurality of radio base stations and the network connecting apparatus. The radio communication system enables a wider service area with a smaller number of communication lines.

Abstract: The detection of any transmission error having developed between a central station and a transmitting station, and the start of a counterplan to the transmission error are realized by a simple construction. The central station transmits messages to which error correcting codes for correcting the transmission errors of the respective messages are affixed, to receivers via the transmitting stations through radio communications. Each of the receivers corrects the transmission error which has developed in relation to the message received through the radio communications, by the use of the error correcting code affixed to the particular message.

Abstract: A testing system connects a subscriber line to be tested by way of a semiconductor switch of a type driven by a constant current to a test equipment to test a subscriber line and a terminal equipment. The test system includes a compensation circuit having means for measuring a constant current component contained in a current flowing through the semiconductor switch into a test line, and means for drawing a constant current component to drive the switch through the test line on the basis of the measuring result to supply the current component obtained by subtracting the constant current component from the current flowing through the test line to the testing equipment.

Abstract: A system for testing subscriber lines and terminals by leading the subscriber line to the testing system through an associated semiconductor switch of a type driven by a constant current. The system includes a circuit for varying a current fed through the switch from the subscriber line to be tested, a circuit for measuring current values corresponding to the circuit states of the circuit, and a circuit for determining on the basis of the measured values derived from the measuring circuit a current value from which the constant current component for driving the switch is eliminated.

Abstract: A ringing control apparatus comprises a bidirectional switching circuit connected in series to a ringing source, which generates an alternating current of a large amplitude, for delivering to a called subscriber the AC signal as an interrupted ringing signal, a phase detector circuit in the form of a zero level detector for detecting the phase of the AC signal generated from the ringing source, and a control circuit for generating a signal for turning on and off the switching circuit in synchronism with the output signal of the phase detector circuit. The delivery of the ringing to the called subscriber is started at a point of time when the ringing voltage comes to a zero level and is stopped at a point of time when the ringing current comes to a zero level, thereby to prevent generation of a surge voltage.

Abstract: A speech path system for a telephone exchange having crosspoint switches of a speech path network comprising semiconductor switching devices of four or more layers, including a memory circuit for storing the operating conditions of said switching devices, a drive circuit of a high A.C. impedance for actuating said switching devices in response to output signals from said memory circuit, a subscriber D.C. loop detection circuit of a high impedance provided at a subscriber terminal of said speech path network, and a speech current supply circuit with speech current switching means and a supply current detection circuit provided at a trunk terminal of said speech path network.