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JPH0423355U |
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JPH0457590A |
PURPOSE: To prevent a transmission enable range between a network terminator(NT) and a terminal equipment(TE) from being limited by providing an equalizer to a reception side of the NT and the TE respectively. CONSTITUTION: A line output...
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JPH0437388A |
PURPOSE: To easily realize communication using a D-channel between TEs connected on one and a same line without intervention of an exchange by providing a circuit extracting a specific frame into a network NT and inserting the frame into...
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JPH0421299A |
PURPOSE: To accommodate an ISDN-S point subscriber interface as an extension to a small sized line repeater by taking note that a communication protocol of the ISDN-S point subscriber interface is similar to a communication protocol of a...
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JPH0420058A |
PURPOSE: To surely test a subscriber's bus between a network terminator and a connection terminal without much labor and time for test by checking whether or not the identification of a test code is displayed on an identification result ...
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JPH0413397A |
PURPOSE: To eliminate need for provision of a network terminator in matching with a bus connection form and for manual setting a type of the bus connection form by identifying from which subscriber terminal equipment belonging to which o...
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JPH03296359A |
PURPOSE: To omit an expensive transformer, to attain economical constitution and to facilitate circuit integration by utilizing a termination resistor of a transmission line and a reception line and feeding power to a terminal equipment....
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JPH03289732A |
PURPOSE: To terminate a call at a normal terminal by returning a response while delaying it only for time set in advance from an abnormal time when the call is terminated through one line to plural terminals, confirming the response from...
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JPH03123354U |
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JPH03283896A |
PURPOSE: To perform simultaneous communication by the subscribers ≥3 at two kinds of terminals in common to a subscriber by forming a communication line of duplex loop among the subscribers ≥3. CONSTITUTION: Each loop circuit 14 sets...
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JPH03283994A |
PURPOSE: To eliminate need for revision of software in connection control such as bypassing, manual operation and arrangement of plural communication controllers, to quicken the processing and to reduce the installation cost by receiving...
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JPH03280744A |
PURPOSE: To attain feeding to an ISDN terminal even when no feeding function exists in a network terminator by providing the feeder feeding the ISDN terminal via an S interface. CONSTITUTION: A network terminator 2 not having a feeding f...
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JPH03280797A |
PURPOSE: To regulate the receipt of malicious calls by storing set regulation through an incoming call regulation setting circuit, detecting it, transmitting a signal for rejecting the receipt of a call and disconnecting a digital commun...
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JPH03280745A |
PURPOSE: To attain feeding to an ISDN terminal even when no feeding function exists in a network terminator by providing the feeder feeding the ISDN terminal via an S interface at TE side. CONSTITUTION: A network terminator 2 not having ...
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JPH03274988A |
PURPOSE: To facilitate data communication even for a user provided with a small scale of equipment by informing it to all terminal equipments on a subscriber's line that local communication is finished after the changeover of a local com...
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JPH03270544A |
PURPOSE: To prevent occurrence an unbalanced state in the balanced feeding system by feeding power with closing of an open close contact after a data signal/feeding common use contact is in contact with a data signal/feeding common use p...
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JPH0369223B2 |
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JPH03243036A |
PURPOSE: To simplify this composite terminal adaptor without connecting a bus line by selecting the port of a service terminal and connecting an interface part to the selected port. CONSTITUTION: An ISDN network interface part 2 receives...
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JPH03241939A |
PURPOSE: To relieve the load of a subscriber exchange side or the like at a network side by providing an extension virtual path identifier to a header of a communication cell for extension addressed in a same subscriber's equipment, iden...
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JPH0366869B2 |
PURPOSE:To prevent answers given from a terminal equipment which is in capable of composite communication by providing an identifier adding means which adds a call identifier for composite communication to the transmission signal, a disc...
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JPH03229553A |
PURPOSE: To avoid wasteful receiving processing at ISDN terminal equipment at the time of the incoming of a call transferred in the form of broadcasting by making only the ISDN terminal equipment to which a TEI value is assigned continue...
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JPH03229599A |
PURPOSE: To switch communication to a spare channel circuit connection part without interrupting the processing of a D channel by delivering always the transmission reception data of the D channel to a B1 or a B2 channel circuit connecti...
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JPH03217197A |
PURPOSE: To detect the abnormality of a user terminal line terminal equipment at a station line terminal board by parallelly connecting the station line terminal board to a loop at the input/output terminal of the user terminal line term...
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JPH0359633B2 |
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JPH03192891A |
PURPOSE: To attain inter-extension connection without drive of an exchange by adding an extension connection controller to be connected to a network terminator and connecting subscriber lines and at least a line for a transmission signal...
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JPH03171947A |
PURPOSE: To connect plural ISDN terminals to an arbitrary place of a subscriber's bus of a long distance by allowing plural ISDN terminals to execute a communication to a network by a multi-access format. CONSTITUTION: As for a D-bit fro...
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JPH03155248A |
PURPOSE: To evade a state where the function of an integrated services digital network(ISDN) is lost due to a re-call by an invalid call by displaying busy when a bit representing the busy is detected with B1 and B2 bit serial-parallel c...
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JPH03145893A |
PURPOSE: To constitute a common subscriber network with one kind of common subscriber terminal equipments by allocating a different terminal equipment identification information signal to each of plural common subscriber terminal equipme...
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JPH03145855A |
PURPOSE: To reply a call in a proper form independently of the arrangement of ISDN terminal equipments of a called party and number of persons able to reply the call by applying call waiting display to an idle ISDN terminal equipment thr...
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JPH03141797A |
PURPOSE: To use a terminal connected to an extension passive bus as an ISDN terminal to attain communication with line wire by sending data to a subscriber's private passive bus when a specified destination to be transmitted is the line ...
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JPH0338799B2 |
An electronic key telephone system in which three or more key telephone instruments are interconnected or connected to an exchange line, as required, by way of a central control unit, each instrument being connected to the central unit b...
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JPH03132236A |
PURPOSE: To enable the exchange of data with transmission bearer matched with a terminal attribute for the terminal of a communicated party by converting the bearer between packet exchange type data and line exchange type data by using t...
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JPH03123197A |
PURPOSE: To make it unnecessary to prepare a switching circuit in each ISDN terminal equipment by providing the ISDN multipoint feeding system with a normal feeding DC power supply, switching circuits and a switching control means. CONST...
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JPH03117125A |
PURPOSE: To decrease the control software quantity of a terminal interface equipment by providing an exclusive channel for transmitting only control information transmitted and received directly between equipments connected as two termin...
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JPH03104470A |
PURPOSE: To attain a simple and easy collision test to confirm access contention control of a D-channel by providing a logic fixed means deciding a bit of a D-channel transmission data looped back to an echo channel as the occurrence of ...
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JPH0399552A |
PURPOSE: To inexpensively give the variety of service for various purposes by sending the signal of a channel to a personal computer and displaying the presence or the absence of the signal and supplying the signal on a bus wiring and th...
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JPH0396194A |
PURPOSE: To make a feeding circuit small by providing a mirror circuit between a DC power supply and a midpoint of a line connection winding of two transformers of a network terminator and setting a feeding current within a mirror settin...
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JPH0370391A |
PURPOSE: To simplify a terminal as a slave terminal by comparing a caller number which is received at the time of termination from the communication network with information stored in a caller number information memory and finding the sl...
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JPH0320117B2 |
A telephone system with central processor control has telephones which include respective data circuits e.g. microprocessors which scan respective data keys associated with each telephone. The central processor may then scan the telephon...
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JPH0360564A |
PURPOSE: To prevent wear of a battery by deciding a call request from a terminal side equipment according to the result of count by a timer.counter, stopping power supply to an interface circuit in the case of a consecutive fault or a pe...
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JPH0355995A |
PURPOSE: To save labor of checking the operating state of non-automatic TEI and the value of non-automatic TEI in operation by reading and displaying the value of a terminal equipment identifier used by an ISDN basic access terminal equi...
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JPH0352494A |
PURPOSE: To facilitate the maintenance/test job for a digital subscriber line by adding a digital pull-in circuit to a subscriber accommodation equipment of an exchange station to pull control information on an optional digital subscribe...
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JPH0315397B2 |
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JPH0341861A |
PURPOSE: To display and recognize a communication charge for each terminal equipment by adding and storing a communication charge corresponding to a subaddress to a memory corresponding to the subaddress of each terminal equipment. CONST...
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JPH0340635A |
PURPOSE: To utilize various services offered in an analog telephone network with an ISDN terminal equipment by connecting the ISDN terminal equipment to the analog telephone network in addition to an analog telephone network terminal equ...
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JPH0340535A |
PURPOSE: To connect a transmission line between a network terminating equipment and an ISDN terminal equipment similarly to a wired line even in the case of using the line as a wireless line by allowing the ISDN terminal equipment to dec...
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JPH0335687A |
PURPOSE: To simplify system configuration by unifying a network termination device(NT) and a terminal equipment(TE). CONSTITUTION: For a TE integral type NT 10, a T line (transmission line) and an R line (reception line) are connected to...
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JPH0322696A |
PURPOSE: To allow a called subscriber to identify a caller subscriber by providing a function registering a call tone change object subscriber on request from a terminal subscriber and a function analyzing received information and contro...
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JPH031639A |
PURPOSE: To attain mutual D-channel communication by providing a reception circuit outputting the content of a frame to the user application when the address of a terminal equipment receiving a frame is an address to its own terminal equ...
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JPH02260996A |
PURPOSE: To possess an individual terminal incoming function and to attain extension speaking by providing a sub-address processing part in a control part, comparing an extension number stored into a sub-address storing part with receive...
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