Class 379/23 - Of line signalling

Subclass of Class 379 - Telephonic communications
Definition: Subject matter which evaluates the transmission or operation
No. of patents: 36
Last issue date: 08/12/2008

Number	Title	Issue Date
7412035	External detection of optional telephone services on a telephone line Determining whether a call forward busy service is enabled on a telephone line includes placing a first test call across a network to the telephone line. First signaling data is received through the network in response to the first test call. The first signaling dat...	08/12/2008
7400710	MIMO dynamic PSD allocation for DSL networks A system and method for multiple inputs, multiple outputs (MIMO) PSD allocation in a DSL system is disclosed. In some embodiments, the method may comprise monitoring system performance by performing a multi-ended line test (MELT), processing the MELT and allocating ...	07/15/2008
7362850	Method and arrangement for estimation of line properties The length and attenuation of a signal line between a transmitter and a customer premises equipment is to be estimated. A frequency dependent line input impedance (Zin(f)) as seen from the transmitter, is measured and an absolute impedance value (œ Z	04/22/2008
7346149	Method and apparatus for reversibly correcting nonlinear impairments in a communications channel In a transmission line, nonlinear impairments resulting from imperfect splices are mitigated by providing a bias current that shifts the operating points of these impairments resulting in improved stability, conductivity and linearity. ...	03/18/2008
7300174	Multicolor light source and backlight module using the same A backlight module (20) includes a light guide plate (200) and a light source (10). The light guide plate includes a light incident surface (220) opposite to the light source. The light source includes a plurality of multicolor based LEDs...	11/27/2007
7302379	DSL system estimation and parameter recommendation Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol, users and/or the like. The operational data collected from the system can include performance-charact...	11/27/2007
7200205	Interface device for testing a telecommunication circuit An interface device and method for testing a telecommunication circuit by utilizing a test cord that has a first end that is integrated with the interface device and a second end that terminates with a test connector. Upon insertion of the test connector into a test...	04/03/2007
7158615	External detection of optional telephone services on an unknown telephone line Determining whether a call forward busy service is enabled on a telephone line includes placing a first test call across a network to the telephone line. First signaling data is received through the network in response to the first test call. The first signaling dat...	01/02/2007
7076031	System and method for telephone signal collection and analysis An apparatus, system, and method for telephone signal collection, processing, and analysis is provided. The apparatus includes a portable field unit for capturing telephone signal data including (a) a connection interface for connecting to the telephone line and rec...	07/11/2006
7072305	Method and apparatus for analyzing a communications network link A method and system for testing at least one link in a communications network. The system includes first and second analyzer units that are configured to test an existing link in the network. Alternatively, the first and second analyzer units may be configured to es...	07/04/2006
7027809	Systems and methods for providing visibility to SS7 integrated on-line networks A system and method capture data from an SS7 network and pair each invoke message with its corresponding response message. Each message is stored in a daily file as well as in a table dedicated for that particular message type. A separate file is also maintained on ...	04/11/2006
7013467	System and method for managing computer system resources using command control vectors A system, method and computer program product for processing multiple tasks using a single copy of a data object employs command control vectors (CCVs) for representing tasks. A CCV includes pointers to method objects that store instructions for processing tasks and...	03/14/2006
6950498	External detection of optional telephone services A method to determine telephone services enabled on a telephone line that is registered to receive services from an online service provider includes determining whether a telephone line registered to receive services from an online service provider is occupied. One ...	09/27/2005
6785532	Power line communications An apparatus for coupling signals to a transmission line, such as a power line (120). The apparatus comprises an input for receiving a wanted signal; a first coupler for coupling the wanted signal (Vmain) onto the line at a first position (Y); a ca...	08/31/2004
6263048	Testing of digital subscriber loops using multi-tone power ratio (MTPR) waveform The performance of digital subscriber loops is tested through transmission, reception and analysis of a multi-tone power ratio (MTPR) waveform, containing plural discrete tones having equal spectral spacings and notches periodically distributed among the ...	07/17/2001
6215856	Dual mode monitor module A method and apparatus for monitoring telecommunication lines. A switch is disposed between the telecommunication lines to be monitored and a jack which is connectable to a signal monitoring device. The switch is positionable into a neutral position for p...	04/10/2001
5912946	Method for detecting improper delivery of parameters, in an initial address message, from an interconnecting switch A method for detecting improper delivery of parameters in an initial address message (IAM), such as a calling party number (CPN), for calls set up to a switch over SS7 trunk groups connected to other carriers is described. When a call originates from a sw...	06/15/1999
5867558	Method for remote collection of signaling messages for routing analysis and trouble detection A method for monitoring the signaling network in a telecommunication system comprises extending a copy of each signaling message processed by a particular signal transfer point to an interface unit. The interface unit relays "of interest" messages to a si...	02/02/1999
5787147	Test message generator in a telecommunications network A test message is constructed using a set of predefined natural language message types and keywords. The constructed test message is then interpreted during run-time and converted to a properly formatted Transaction Capable Application Part (TCAP) message...	07/28/1998
5732124	Apparatus and method for detecting the status of a PCM channel An apparatus and method are provided for determining the activity status of a PCM channel in a telecommunications system. The method (600-680) and apparatus (400) utilize a codec (220) within the PCM channel which converts an analog signal to a digital si...	03/24/1998
5726972	Location identification in a communications signalling network A monitor probe for a communications signalling network, such as an SS7 network, is arranged to determine its own location on the signalling network by watching for a particular type of message which carries the required information in its routing label. ...	03/10/1998
5715293	Method and apparatus for monitoring telecommunication signals A method and apparatus for monitoring telecommunication signals carried by a telecommunication network (10) including a signal transfer point device (12) for routing data, clock and control signals over a link (14) and a link monitor (16) operable for mon...	02/03/1998
5596568	Apparatus for protecting a telecommunications network from false alarm conditions due to T1 line signal interruption An apparatus continuously monitors the T1 output signal from a customer telecommunications equipment to a telecommunications network and provides a substitute input signal to the network whenever the T1 output signal from the customer equipment is interru...	01/21/1997
5546574	Peer-to-peer data concurrence processes and apparatus Data concurrence processes and systems for maintaining concurrence of parallel sets of data stored in telecommunication Network Elements. According to a preferred embodiment of such processes, a Network Element such as a Service Node sends a Request Messa...	08/13/1996
5521902	Location identification in a communications signalling network A monitor probe for a communications signalling network, such as an SS7 network, is arranged to determine its own location on the signalling network by watching for a particular type of message which carries the required information in its routing label. ...	05/28/1996
5504800	Cellular automated test set A cellular automated test set for testing cellular telephones consists of a RF interface coupled to an RF input/output of the cellular telephone and a transmitter-receiver coupled at an RF input/output of the transmitter-receiver to the RF interface. The ...	04/02/1996
5448624	Telephone network performance monitoring method and system The present invention automatically initiates a telephone call to a given destination. At the same time, the progress of the call is monitored. The time of a ring back and voice answer received from the destination are recorded to an output file. At the e...	09/05/1995
5392328	System and method for automatically detecting root causes of switching connection failures in a telephone network An operating system is provided for an analog switching machine having switch fabric formed by multiple line and trunk link networks having interconnected switch stages with each switch stage having multiple grid connections and makes post-connection cont...	02/21/1995
5375159	System and method for remote testing and protocol analysis of communication lines In a switched telecommunications network having multiple SPC switches connected to one another by trunks and connected to signal transfer points (STPs) by common channel signal (CCS) links, dual port protocol analyzer and control (DIAC) devices are situat...	12/20/1994
5222083	Call progress monitoring Method for use in developing, testing, debugging, and/or troubleshooting a call progress monitoring (CPM) detection system which is utilized, for example, by a voice messaging system (VMS). One embodiment of the present invention which is utilized in conj...	06/22/1993
5134643	Method and system for testing mobile communication systems A method and system for testing a mobile communication system which includes a base station radio unit for making a line connection with an arbitrary one of a plurality of mobile stations, a line control unit which is coupled to the base station radio uni...	07/28/1992
5103473	Telephone system communication mechanism employing central office sleeve lead A data communication and sleeve lead control apparatus provides auxilary signalling between a no-test trunk control unit, and another unit such as a pair gain unit which is coupled with the link between the control unit and the no-test trunk, while mainta...	04/07/1992
4756017	Telephone test device The device is inserted at the jack between the tip-ring signals of a telephone company's line and the customer's telephone lines and equipment to isolate the location of telephone problems. A first tri-color light emitting diode shows either "off" or "gre...	07/05/1988
4314110	System for the testing of telephone switching systems A system for generating calls in order to test telephone switching systems by simulating traffic loads has line interface circuits which send calls independently and in selected sequence on any number of a group of lines into the telephone switching syste...	02/02/1982
4165450	Telephone signalling test system Telephone signalling test apparatus is provided for monitoring telephone lines under live traffic conditions. The apparatus is modular with a main frame having a line interface and central control and storage unit, as well as numerical display....	08/21/1979
3968335	Dial tone speed monitor Apparatus for connection to the line finder group busy signal leads of telephone office equipment to determine when each line finder group is and is not busy, make an averaging determination of the busy conditions and generate signals indicating this aver...	07/06/1976

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Class 379/23 - Of line signalling