Abstract: The present invention provides a transmission apparatus including transmitting side line interfaces which convert packet format data sent from an asynchronous network to a SONET/SDH frame format and then transmit the data, multiple receiving side line interfaces which receive the SONET/SDH frame format data and convert the data to packet format data and a circuit switching section which performs circuit switching. The transmitting side line interfaces include a variable length frame mapping section which converts the packet format data to variable length frame format data and a time division multiplexing mapping section which converts the variable length frame format data to the SONET/SDH frame format data. The receiving side line interfaces include a variable length frame demapping section which reconverts the SONET/SDH frame format data to variable length frame format data.

Abstract: An outer solid rubber sheet layer having a maximum thickness dispersion value of 0.04 mm is adhered to an inner resin seamless film layer with low stretchability forming a seamless adhered one piece two layer cylinder. The cylinder is formed by placing the two layers between an outer casing mold and a core mold and applying a pneumatic pressure to the cylinder outside of the core mold for vulcanizing and adhering the rubber to the resin film.

Abstract: The objective of the present invention is to provide a method and apparatus for manufacturing an intermediate transfer belt and a fixing belt with high quality used in copying machines, printers and the like. An unvulcanized rubber is formed into a sheet and adhered to a resin film with low stretchability forming a seamless laminate. The laminate is formed into a cylindrical form where the solid rubber sheet is arranged outside of the resin film or vice versa. The cylindrical composite is placed between an outer casing mold and a core mold. A pneumatic pressure is applied to the cylindrical composite outside of the core mold for vulcanizing the rubber and adhering the rubber to the resin film so as to form a laminated cylinder into one piece.

Abstract: An information distribution apparatus for a CATV system which apparatus is capable of transmitting an identical program directed to a plurality of set-top boxes with the use of a single communication path between a distribution control section and an information distributing section. When distribution of identical information is requested from a plurality of set-top boxes, path identification number decision unit determines an identification number of a single communication path for these set-top boxes. Distribution information transmitting unit transmits the requested distribution information to the information distributing section via the communication path with the thus-determined identification number. In the information distributing section, set-top box identifying unit identifies individual set-top boxes to which the distribution information is to be distributed, based on the identification number of the communication path used for transmission by the distribution information transmitting unit.

Abstract: In a subscriber testing system, a V5 interface protocol is used as a communication protocol. A switch includes a processing unit for transmitting to a communication node a piece of test specifying information, inputted from a maintenance/operation terminal, for indicating a subscriber test for a subscriber's line and subscriber circuit that correspond to an accommodated subscriber by use of specifying information of a message type based on the V5 interface protocol. The communication node includes a processing unit for making a testing device execute the subscriber test on the basis of the test specifying information received via a logical link from the switch, and sending test result information for informing of a result of the test back to the switch by use of specifying information of a message type based on the V5 interface protocol.

Abstract: An ATM cell bridge apparatus and a cell bridging method as well as an information transmission system having a cell bridge apparatus by which a cell can be outputted in accordance with a priority degree even during multicast processing. The ATM cell bridge apparatus includes a buffer unit for storing cell data of input cells, a buffer control unit for controlling writing and reading out of the cell data into and from the buffer unit, a cell production control unit for managing multicast information of the cell data read out from the buffer unit by the buffer control unit and producing a cell to be outputted from header information of the cell data, and a cell outputting unit for outputting the cell produced by the cell production control unit and issuing a cell data readout request to the buffer control unit.

Abstract: In an access network system for performing a maintenance management of an access line, a processor stores an allocation status of a bearer channel to be managed, and a system manager determines an availability status of the access line based on the allocation status. Also, the processor determines the availability status based on the allocation status and loop open/close information of a PSTN/ISDN user line. Furthermore, the system manager 25 activates a test portion based on the availability status.

Abstract: Line states are detected accurately to efficiently test subscriber lines, thereby improving the reliability and quality of maintenance and operation. Line monitoring means monitors line states based on at least one of loop information of lines and status information of bearer channels. Subscriber line testing means conducts subscriber line testing in accordance with the line states.

Abstract: An information distribution apparatus for a CATV system which apparatus is capable of transmitting an identical program directed to a plurality of set-top boxes with the use of a single communication path between a distribution control section and an information distributing section. When distribution of identical information is requested from a plurality of set-top boxes, path identification number decision unit determines an identification number of a single communication path for these set-top boxes. Distribution information transmitting unit transmits the requested distribution information to the information distributing section via the communication path with the thus-determined identification number. In the information distributing section, set-top box identifying unit identifies individual set-top boxes to which the distribution information is to be distributed, based on the identification number of the communication path used for transmission by the distribution information transmitting unit.

Abstract: The invention provides an ATM cell bridge apparatus and a cell bridging method as well as an information transmission system having a cell bridge apparatus by which a cell can be outputted in accordance with a priority degree of it even during multicast processing and the burden to a transmission source is moderated by intra-port multicast on an ATM transmission apparatus and besides the transmission efficiency of cells having high priority degrees is raised.

Abstract: Line states are detected accurately to efficiently test subscriber lines, thereby improving the reliability and quality of maintenance and operation. Line monitoring means monitors line states based on at least one of loop information of lines and status information of bearer channels. Subscriber line testing means conducts subscriber line testing in accordance with the line states.

Abstract: A method of manufacturing a shoe according to the present invention comprises a step of cutting a columnar raw material 1 to a given length to provide a disc-shaped raw material 2, a step of forming on one end face of the disc-shaped raw material a spherical sliding surface 10 which is to be disposed in sliding contact with a spherical surface on a piston, and a step of forming a thermal sprayed layer 6 on the other end face of the disc-shaped raw material by a rapid gas H.V.O.F. spraying process, the thermal sprayed layer serving as a flat plate-shaped sliding surface 9 which is to be disposed in sliding contact with a swash plate. A shoe which is provided with the thermal sprayed layer 6 exhibits an increased seizure resistance in comparison to a conventional shoe which is formed with a sintered layer, and can be manufactured inexpensively.

Abstract: A process for preparing a ketone, an alcohol and/or a hydroperoxide is provided by reacting a hydrocarbon with molecular oxygen in the presence of a cyclic N-hydroxyimide and a compound of a transition metal, in which an oxygen-containing gas is supplied in a reaction system and at the same time a gas containing 1 to-about 8.59, by volume of oxygen is discharged from the reaction system. This process is excellent in productivity and safety and produces the desired products at a high selectivity.

Abstract: A method of manufacturing a shoe including cutting a columnar raw material to a given length to provide a disc-shaped raw material, forming on one end face of the disc-shaped raw material a spherical sliding surface which is to be disposed in sliding contact with a spherical surface on a piston, and forming a thermal sprayed layer on the other end face of the disc-shaped raw material. The thermal sprayed layer serves as a flat plate-shaped sliding surface which is to be disposed in sliding contact with a swash plate. A shoe which is provided with the thermal sprayed layer exhibits an increased seizure resistance in comparison to a conventional shoe which is formed with a sintered layer, and can be manufactured inexpensively.

Abstract: A semiconductor device includes a high-frequency-use semiconductor chip having high frequency circuit blocks. The semiconductor chip is mounted on a circuit substrate and electrical connectors are provided for electrically connecting each one of the high frequency circuit blocks in the semiconductor chip to the circuit substrate. The electrical connectors situated adjacent to each other are provided such that the distance between first contacts at which the electrical connectors are electrically connected to the respective high frequency circuit blocks is smaller than the distance between second contacts at which the electrical connectors are electrically connected to the circuit substrate.

Abstract: The objective of the present invention is to provide method and apparatus for manufacturing an intermediate transfer belt and a fixing belt with high quality used in copying machines, printers and the like.

Abstract: A process for preparing a ketone, an alcohol and/or a hydroperoxide is provided by reacting a hydrocarbon with molecular oxygen in the presence of a cyclic N-hydroxyimide and a compound of a transition metal, in which an oxygen-containing gas is supplied in a reaction system and at the same time a gas containing 1 to 10% by volume of oxygen is discharged from the reaction system. This process is excellent in productivity and safety and produces the desired products at a high selectivity.

Abstract: In a subscriber testing system, a V5 interface protocol is used as a communication protocol. A switch includes a processing unit for transmitting to a communication node a piece of test specifying information, inputted from a maintenance/operation terminal, for indicating a subscriber test for a subscriber's line and subscriber circuit that correspond to an accommodated subscriber by use of specifying information of a message type based on the V5 interface protocol. The communication node includes a processing unit for making a testing device execute the subscriber test on the basis of the test specifying information received via a logical link from the switch, and sending test result information for informing of a result of the test back to the switch by use of specifying information of a message type based on the V5 interface protocol.

Abstract: A stent having a cylindrical shape includes frame-like unexpandable portions incapable of being expanded in a circumferential direction, and frame-like expandable portions capable of being expanded in the circumferential direction. The unexpandable portions and the expandable portions are alternately connected together in the circumferential direction.

Abstract: A gyrotron system comprises an electron gun that produces an electron beam, a magnetic field generating unit comprising a permanent magnet and two electromagnets and capable of generating an axial magnetic field that drives electrons emitted from the electron gun for revolving motion, a cavity resonator that causes cyclotron resonance maser interaction between the revolving electrons and a high-frequency electromagnetic field resonating in a natural mode, a collector for collecting the electron beam traveled through the cavity resonator, and an output window through which a high-frequency wave produced by the cyclotron resonance maser interaction propagates. The gyrotron system can be fabricated at a comparatively low cost, is easy to operate, has a comparatively small size and is capable of operating at a comparatively low running cost.