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6212170 |
Method for managing status and dual information of clock distributor
A control device manages status and dual information of respective boards in a clock distributor for use in a CDMA base station controller. The device forms a TD-bus communication path and an...
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6208621 |
Apparatus and method for testing the ability of a pair of serial data transceivers to transmit serial data at one frequency and to receive serial data at another frequency
An apparatus and method are presented for testing the ability of a pair of serial data transceivers to transmit serial data at one frequency and to receive serial data at another frequency. A...
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6198726 |
Plural-line terminating apparatus and OAM processing method thereof
In a method of executing OAM processing in a plural-line terminating apparatus, a physical layer terminator converts a line signal to cells and adds a line identifier onto each cell header, the...
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6192034 |
System and method for network integrity management
A system and method for network integrity management are provided. A plurality of network elements (108) and software elements (114) are interconnected in a network. Each network element (108) and...
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6188876 |
System and method for remote monitoring of RF units in base station of wireless communication network
The present invention relates to a system and a method for monitoring and controlling RF signal processing units in a wireless communication network, and, more particularly, system and method for...
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6185419 |
Communications system and method for testing of a communications apparatus
The present invention concerns a communications system (KS) comprising a communications apparatus and a test apparatus (TV) for testing of the communications apparatus, as well as a method for...
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6167033 |
Multiple-party network communication system and method of troubleshooting thereof
The present invention provides a multiparty network communication system, which is constructed by connecting system users in serial. Various types of information are packed and encoded according to...
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6157615 |
Method for controlling a test for an ATM exchange
A method for controlling a test for an ATM exchange in which a number of test cell generating devices to be activated is limited in association with a load applied to a central processing device so...
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6154448 |
Next hop loopback
In a telecommunications network, broken connections can be detected and located through a next hop loopback technique. The next hop loopback technique involves the generation, transmission, and...
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6147972 |
Method and system for achieving cell diagnosis of continuity in cell exchange
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...
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6144674 |
Hitless clock recovery in ATM networks
A method of generating timing signals for constant bit rate data received over an asynchronous data network carrying, comprises recovering clock signals from at least two separate sources,...
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6140920 |
Optical transmission system element test
A field replaceable element of an optical transmission system includes an operating unit (1), a self test means (2), and non volatile memory (3) for storing self test results on-board. Parameters...
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6128284 |
SDH-communication-network/already existing communication network monitoring and integrating apparatus and its method
An SDH/PDH monitoring and integrating apparatus collects control data generated in a monitoring unit employed in each PDH radio apparatus in a PDH communication network, transforms the control data...
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6125107 |
Dual-band RF test interface circuit
A test equipment interface circuit capable of acting as an interface between a wireless transceiver and a piece of test equipment for both high frequency band signals and low frequency band signals...
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6125458 |
Fault management system for a telecommunications network
There is described a method of operating a fault management system for an access network which forms part of a public telecommunications network. In the access network, terminating lines in the...
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6122256 |
Fail-safe communications network for use in system power control
A communications network includes a primary node and one or more secondary nodes, each node having first and second ports. The primary node periodically polls the network in opposite directions to...
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6108309 |
SONET network element simulator
A network simulator for use as a testing tool for a network management system includes an input device for inputting data containing network elements, their attributes, and information about their...
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6104702 |
Apparatus and method for extending operation of non-intrusive monitors in SDH
A method and apparatus for monitoring signals communicated over a signal path from a source to a destination with the signals containing a set of data representing a data signal type comprises a...
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6081535 |
STM-16 network-node interface in an ATM switch and the fault diagnosing method thereof
The invention is to provide an STM-16 Network-Node Interface(NNI) which is capable of exactly checking whether a fault is generated on any station when the VC-4 AU received from a remotely located...
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6081509 |
Simulator for multiple network interface units
A special network interface unit (NIU) for a communication system, called a super NIU, simulates operations of multiple NIUs, called virtual NIUs, for such purposes as testing other components of...
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6075773 |
Multi-user LAN packet generator
A packet generating Ethernet testing device is provided with a microprocessor for generating packets. A packet memory is provided which stores the generated Ethernet packets. A packet forwarding...
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6072776 |
Fault self-supervising system of cell processor
There is provided a fault self-supervising system of cell processor to execute fault supervising for internal circuit in the cell processor during the in-service period while the ordinary operation...
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6069873 |
Closed-loop automated testing of system equipment and management
An automated closed-looped test system and method for testing network devices such as CPE and system network managers is arranged as a modular, comprehensive test system which seamlessly integrates...
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6061332 |
System and method for the automated configuration of network elements in a telecommunications network
A system and method for configuring network elements. A routing network enables one or more controllers to connect to any network element within a service provider's network via craft interface...
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6055225 |
Ring architecture for quad port bypass circuits
A floating clock data recovery circuit may be positioned anywhere in a chain of nodes. An N+1 length series of port bypass circuits are connected such that the output port of one is connected to...
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6052584 |
CDMA cellular system testing, analysis and optimization
Testing a CDMA cellular communication system involves placing stationary load box test units about a selected cell and transmitting predetermined signals from the test units. The signals include...
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6049529 |
Integration of a path verification message within a signal
A path verification message is integrated into a signal, or data stream, that traverses along a path connecting two end nodes of a distributed restoration network within a telecommunications...
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6046984 |
Pruning of short paths in static timing verifier
A conservative algorithm for pruning data paths during logic circuit timing verification is disclosed. It uses the correlation between delays on data paths and clock paths in order to prune...
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6044063 |
Unsigned integer comparator
An unsigned integer comparator for use when comparing an n-bit received signal (such as an address) with an n-bit known signal ("comparison address"). The first stage of the comparator may be...
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6041041 |
Method and system for managing data service systems
A scheme is described for a data service system having a number of modules. Some of the modules are interdependent. To measure the status of an individual module, the scheme first collects...
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6026076 |
Detecting digital multiplexer faults
Apparatus and a method for testing tiered digital multiplexing apparatus. To test a primary train of tiered demultiplexers, a data path assurance train of demultiplexers and a selector is used to...
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6023581 |
Program debugging support device
A program debugging support device is connected to a first computer and a second computer through a network. A datagram is sent from a client program operating on the first computer to the...
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6016559 |
Multifunctional intergrated electronic product and method for preventing operation failure of the same
A multifunctional integrated electronic product including a main microcomputer and a sub microcomputer configured as master and slave, respectively, is capable of preventing a malfunction caused by...
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6014084 |
Electronic self-locating system and method
A method and an apparatus for automatically locating detectors in an ambient condition monitoring system incorporate a normally closed contact for open circuiting the associated communication link....
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6005844 |
Information collection device and method for use with communications networks
A storage unit includes an alarm state/timer table, an alarm state table, an alarm state OR-representation table, an alarm state change OR-representation table, an alarm state latch circuit, and a...
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6005696 |
Backhauling test procedures for communications networks
A communications network having a plurality of distributed offices includes a test center at a central location for testing line and/or trunk circuits (`links`) throughout the communication...
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5991274 |
Method for testing the conformity of an algorithm called GCRA for discriminating data cells, and an apparatus for executing the method
A generic cell rate monitoring algorithm (GCRA) which is implemented in an ATM network element must be tested during operation. The method uses a second GCRA of the same kind which is synchronized...
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5991269 |
Wireline modem, communication system and method of setting-up such
To avoid spurious energy radiation from a wireline communication resource (42-44) supporting data over voice, such as in xDSL, modems (40, 46) supporting a multi-carrier transmission scheme...
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5987320 |
Quality measurement method and apparatus for wireless communicaion networks
An quality testing apparatus and method for providing an objective and real-time evaluation of voice quality in a wireless communication system. The system under evaluation would include a...
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5986350 |
Power supply system for vehicle
A power supply system having a primary control power line for supplying electric power to control systems indispensable to driving the vehicle from an electric power source. The power supply system...
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5978375 |
Telecommunication system and a method for transferring microcells therein
A telecommunication system has a sending entity, a receiving entity, and an ATM link between the sending and receiving entities for transferring ATM cells on specific separate ATM connections. The...
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5974363 |
Self-testing of smart line cards
Automatic testing a group of line circuits on a smart line card served by a central switch over a PCM bus is localized by using the microprocessor/DSP that provides codec functions for the group of...
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5974030 |
Subscriber multiplexer, a telephone system and a method for communicating the condition of a subcriber interface
A subscriber multiplexer includes a receiver for receiving signals transmitted from subscriber interfaces a feeder and for feeding those signals further to a telephone exchange via a respective PCM...
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5974046 |
Maintenance method for subscriber lines of broadband network termination apparatus in an asynchronous transfer mode permanent virtual connection switching system
A maintenance method for a subscriber line of a B-NT in an ATM PVC switching system which is capable of more expanding a maintenance range of an OAM cell loopback function disclosed in the article...
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5974045 |
OAM processing device in an ATM network
An OEM processing device for supporting operations, administration, and maintenance (OAM) in an ATM network, whose control circuit has a simplified configuration that avoids duplexity of common...
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5968187 |
Computer system and method including a portable portion that has a capability to diagnose and perform analysis for a stationary position and for a portable portion
Disclosed is a computer system and method in which a portable portion has the capability to diagnose and perform analysis for the stationary portion and for the portable portion. The computer...
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5970052 |
Method for dynamic bandwidth testing
A method for dynamic bandwidth testing of a link between two computer subsystems useful for determining the amount of data which can be buffered in a transmission line by delay, in which at each...
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5970051 |
Reduction of errors in D4 channel bank by multiframe comparison of transmit enable lead to determine whether analog channel unit is installed in D4 channel bank slot
The problem of digital data corruption heat occurs when an analog card is inserted into a card/time slot of a D4 channel bank is effectively remedied by sampling and analyzing the channel bank's...
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5956323 |
Power conservation for pots and modulated data transmission
Methods and apparatus for conserving power in terminal units that transmit and receive modulated data over a communications loop that is shared with voiceband telephone equipment are disclosed. The...
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5954796 |
System and method for automatically and dynamically changing an address associated with a device disposed in a fire channel environment
A computer system with a plurality of devices compatible with the Fibre Channel Protocol, which computer system is provided with the capability to dynamically alter the configuration of the...
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