Abstract: A congestion control system appropriately controls congestion of cells independently of the configuration of source and destination terminal units in, for example, an ATM switching unit, and shortens the time taken from the generation of congestion to the start of control. A buffer for switching the cells in a switch device adds to the cells transmitted through the switch device an EFCI for use in notifying the destination terminal unit of the congestion state of the cells. An output line device detects together with a VPI/VCI the EFCI added to the cell to be output from the switch device to the destination terminal unit. The output line device transmits to the switch device the VPI/VCI corresponding to the detected EFCI and an RM cell in which backward congestion indication is set.

Abstract: A communication monitoring and controlling apparatus for easily collecting monitoring information is connected to an existing network composed of a plurality of communication equipment. A management information collecting unit collects management information of each of the communication equipment. The management information is in an existing network management information format. A format converting unit converts the management information in the existing network management information format into management information in a new-type network management information format. The new-type network management information format is a format used by the new-type network, and handles the existing network composed of the communication equipments as one network element. The converted management information is transmitted to at least one operation system of the new-type network by a transmitting unit.

Abstract: Disclosed are a method for enabling information to be provided by calling from an information provider (IP) while preserving user anonymity, and a service server for implementing the same. A user dials a special number followed by an IP number for connection to the IP, and when connected, hears about the contents and fees of information; when the connection with the IP is cut off, a connection between the service server and the user is made to inquire whether he has the intention of entering into a contract. When the user confirmed his intention to enter into the contract, a user number is assigned to the user, and the assigned number is stored in the service server and, at the same time, reported to the IP. The IP can provide information, while preserving the anonymity of the user, by dialing a special number followed by the user number.

Abstract: According to a network system of the present invention, a protocol information requesting unit of call-out terminal requests, when setting a call between terminal devices having different signaling protocols, an ATM switch to supply signaling protocol information used by a call-in terminal. A protocol information supplying unit of the ATM switch reads protocol information corresponding to the protocol information of the call-in terminal from a first protocol information storage unit, and supplies the call-out terminal with this piece of protocol information. A protocol changing unit in the call-out terminal changes the signaling protocol used by the call-out terminal to the signaling protocol used by the call-in terminal. There comes a status wherein the two signaling protocols become coincident.

Abstract: There is provided in accordance with the present invention an operation system for monitoring transmission devices, comprising: a memory storing an alarm monitoring program including, a manager process for receiving a first autonomous alarm notification transmitted from the transmission devices, a MIB management process for transmitting the first autonomous alarm notification transmitted from the manager process and storing the first autonomous alarm notification to a database, and a monitoring process for receiving the first autonomous alarm notification transmitted from the MIB management process and monitoring the first autonomous alarm notification, and the MIB management process further including, a re-transmission thread for storing the first autonomous alarm notification in the database; and a response reception thread for receiving the first autonomous alarm notification transmitted from the manager process and for transmitting the first autonomous alarm notification to the re-transmission thread and

Abstract: A cell flow rate control method for an ATM switch can cope with various UPC forms while using the same hardware arrangement. The cell flow rate control method includes the steps of preparing a conformance condition table in which are stored conformance conditions for each connection determined for each cell loss priority in an ATM cell; and employing, for each cell loss priority, a plurality of conformance test components in accordance with the conformance condition stored in the conformance condition table.

Abstract: In a cell exchange, cell diagnosis of continuity with respect to an individual part operating in a band width for a speed faster than a cell feeding speed is enabled by using cell test equipment with a low cell feeding speed. The method of cell diagnosis of continuity for this purpose comprises a step of setting a plurality of paths between a diagnosed unit to which the cell diagnosis of continuity is applied and the cell test equipment; a step of almost substantially concentrating cells sent from the cell test equipment through a plurality of paths at the diagnosed unit; and a step of returning cells concentrated at the diagnosed unit to the cell test equipment via one of a plurality of paths.

Abstract: Disclosed are an exchange which performs call connection control for subscribers in a plurality of areas having different toll numbers, and a method of controlling connection of calls in this exchange. A telephone number translation table is created in accordance with a telephone number structure comprising an internal toll number and internal local office numbers, wherein the internal toll number is a string of numerals shared by toll numbers in the plurality of areas, and the internal local office numbers are numbers obtained by adding a number, which is not shared by the toll numbers in the plurality of areas, onto the beginning of local office numbers that follow the unshared number. The exchange performs switching service control using the telephone number translation table.

Abstract: Nested APS is implemented in a simple configuration for synchronous transmission systems such as SONET and SDH. Bits 5 to 8 of the received K1 byte are compared with line numbers of lines terminated at the receiving node, and when they do not match, the received K1 byte is sent via a first selection circuit for further transmission. At the same time, the K2 byte incoming from the opposing direction is redirected via second selection circuit for transmission.

Abstract: In a system in which terminals having mutually differing communication attributes perform communication so as to bridge one or a plurality of networks, to provide a method for automatic capture of a communication attribute converting apparatus in a switching apparatus for the control of automatic capture and control of communication attributes of the terminals, if there is a communication attribute converting apparatus which is capable of converting the communication attributes in a station containing a calling terminal, the convertible communication attributes are entered into the information elements of a call setting message of a call setting message and the message is sent to the station containing the receiving terminal.

Abstract: A jaw assembly for use on a slideway of a machine table includes one or more guide rods over which a vise jaw freely slides. No fasteners or mounting members are required to mount and demount the jaw from the assembly. Before the jaw is tightened to apply a clamping force, it is held in an unbiased condition without the need for biasing springs.

Abstract: A terminal management unit for executing control for connection to an operator when a communication apparatus is busy is provided in a network, and terminals connected to the network are registered as operator terminals in a master list possessed by the terminal management unit If the communication apparatus is busy when an incoming call from a caller arrives at the communication apparatus, the terminal management unit stores the telephone number of the caller in a registration list on the originating side. The terminal management unit subsequently refers to the master list, periodically calls the operator terminals and, when an operator terminal responds, calls the caller, which has been registered in the registration list on the originating side, and connects the caller to this operator terminal.

Abstract: A ring transmission system of a bi-directional line switched ring (BLSR) type comprising nodes (A) to (F) connected by ring transmission lines RL, wherein the nodes (A) to (F) have modified squelch tables [A] to [F] and squelch decision units. The ring topology is built by transmitting a ring topology frame and inserting the ID of each node in that frame. Each of the nodes creates a modified squelch table comprised of modified node IDs given to the nodes in a rising order of connection starting from itself using itself as "0" or another reference value. Whether or not to perform a squelch operation is determined by comparing the magnitude of the modified node IDs of the nodes which signals cannot reach at the time of occurrence of a failure and the modified node IDs in the modified squelch table. This enables the squelch processing to be performed at a high speed.

Abstract: An add drop multiplexing (ADM) apparatus has a simple and compact structure. The ADM apparatus has high-order interfaces connected to a high-order network, path setting units each for setting a path for a signal according to path data and inserting or dropping the signal to or from the high-order network, a first path protection switch for selecting one of the signals dropped by the path setting units, low-order interfaces each for receiving the selected signal and transmitting the same to a low-order network, and a second path protection switch for receiving low-order signals from the low-order interfaces and transferring one of them to the path setting units so that the path setting units may insert the signal into the high-order network.

Abstract: A lamina-shaped borepiece (4) for a self-boring fastening element (1) is provided at its front side with cutting edges (5,6) flanked by grooves (7,8) that extend approximately parallel thereto. Indents (9,10) with set-back cutting edges (11,12) are provided in the area of both front cutting edges (5,6), so that a kind of stepped borer is created. The indents (9,10) are formed in the area of the axial extension of the grooves (7,8).

Abstract: In a communication processing system, a message provided with an originating address and a destination address is transmitted via a network from a communications system identified by the originating address to a communications system identified by the destination address. When a message is received, an address defined as the destination address for the message received by the communications system and a receiving address indicated by a management unit are respectively replaced with an address defined as a new originating address and an address defined as a new destination address so that the communications system recognizes that the message is transmitted from a communications system identified by the address defined as the new originating address and the message should be received by the communications system identified by the address defined as the new destination address.

Abstract: A maintenance device for flat filter head valves, comprising a metallic structure (1) having an upper flange (2), which is supported and connected by structural components (5) on a support frame (6), from which derive four supporting legs (7) having respective wheels (8) in the lower ends thereof. The device is formed as a small car (11) to be positioned over tracks (10) at the time the component to be subjected to maintenance procedures is removed, and it can be removed from the work area (T) of base structure (9) later on.

Abstract: A weighted pet bowl with a minimally small footprint is formed from inner and outer shells stamped from stainless steel sheets. Each shell includes a rim that extends outwardly around the top of the bowl. The rims are crimped together around their outer edges to form a peripheral lip or bead which provides a convenient finger grip for securely gripping the bowl. A flowable material such as sand is provided in an internal cavity defined between the shells to serve as ballast and prevent a pet from tipping over the bowl.

Abstract: A chewable pet toy is provided with an outer shell molded from a durable semi-rigid material such as vinyl plastic. The shell partially covers an inner bladder formed of a less durable and softer material such as latex rubber. The bladder can be held within the sleeve with a simple resilient interference fit.

Abstract: A waveguide-type variable-sensitivity semiconductor photodetector has a waveguide photodetector area and an optical attenuation area formed on an n-InP substrate. The optical attenuation area includes a GaInAs optical waveguide layer having a bandgap energy of 0.85 eV, a pair of upper and lower cladding layers each having a bandgap energy of 1.35 eV and an intermediate layer disposed at the heterojunction interface between the optical waveguide layer and the upper cladding layer and having a bandgap energy of 1.0 eV. A pile-up of halls at the heterojunction interface is prevented by the intermediate layer to improve the linearity of the output optical signal to the input optical signal.