Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7593511 | Method for training line drivers in a communication system A method for training line drivers in a communication system; each driver coupled with at least one communication line configured for communicating with subscriber equipment using at least one tone-set; includes the steps of: (a) selecting a test driver; (b) selecti... | 09/22/2009 |
| 7360153 | Method and apparatus for importing digital switching system data into a spreadsheet program A method and apparatus for importing digital switching system data into a spreadsheet program. Via the switch data examiner of the present invention, raw data from a digital switch/switching system such as the 5ESS® is converted by the switch data examiner to a for... | 04/15/2008 |
| 7305045 | Low voltage swing pad driver and receiver Low voltage swing pad driver and receiver. A transmitter portion and a receiver portion are implemented within various devices that communicate using low voltage swing pads communicatively coupled via a trace. The transmitter portion of one device generates a curren... | 12/04/2007 |
| 7174162 | Portable radio communication apparatus The present invention aims at providing a portable radio communication apparatus in which forming of a message is easy. The portable radio communication apparatus is provided with a novel pre-message memory formed of a ROM or the like stored in which are fixed messa... | 02/06/2007 |
| 7110534 | Terminal blocks and methods for making and breaking connections in a telecommunication conductor In embodiments of the present invention, telecommunications terminal blocks are provided for making and breaking connections between a first telecommunications conductor, a second telecommunications conductor and a service wire. The terminal block includes a housing... | 09/19/2006 |
| 7103149 | Optical transport concentrator audit system and method The present invention is a system and method that facilitates audits of network device (e.g., an optical network concentrator) characteristics and operations and presents results in a convenient and user friendly format. The present invention automated network commu... | 09/05/2006 |
| 7027587 | System and method for deriving sealing current An adaptive unit that taps into an existing POTS line, DLC POTS line, DLC channel unit designed for sealing current outputs, or AC-DC transformer designed for sealing current output, to provide sealing current to a DSL circuit thereby avoiding having to deploy a sep... | 04/11/2006 |
| 6965609 | Configurable basic rate interface A network device with a configurable interface. The device has at least two communication ports. An interface in communication with the ports is configurable as to the network layer, or layer 2 and 3, and the physical layer, or layer 1. The inte... | 11/15/2005 |
| 6944132 | Transmission apparatus, order wire transmission system and order wire monitoring method An order wire monitoring method monitors form a monitoring control terminal a quality of an order wire line which couples transmission apparatuses via multiplexed lines which multiplex and transmit main and order wire signals. A transmission apparatus which is to tr... | 09/13/2005 |
| 6912269 | Test unit for use at a network interface device A test unit provides testing capability at a network interface device (NID). The test unit may be remotely activated so that testing is initiated upon activation from a remote site. In one embodiment, a characteristic signal is sent over a telephone line toward the ... | 06/28/2005 |
| 6904130 | Test unit for interface between telephone company demarcation point device and customer's telephone system A test unit for determining whether a local telephone company demarcation point device is providing telecommunication signals to one of a plurality of telephone lines of a telephone system includes: a demarcation point connector that is configured to interface with ... | 06/07/2005 |
| 6891851 | Method and apparatus for communicating maintenance messages and/or test messages of digital subscriber line services A subscriber's data circuit between channel bank and the customer premises carries fractional T1 bandwidth on a digital subscriber line (DSL) circuit. For example, for an ISDN rate digital subscriber line (IDSL), the circuit between the network termination at the cu... | 05/10/2005 |
| 6847702 | Systems and methods for enhanced reliability in a communication system Disclosed are systems and methods for transferring data between servers and subscribers. A central office employs DSL circuit cards. Each DSL circuit card encodes a digital signal using a discreet multitone technology (DMT) scheme, and sends an encoded signal on a s... | 01/25/2005 |
| 6819745 | Method and apparatus of testing a POTS circuit and DSL circuit through a splitter A simple means is provided to test the cross connect wiring of a communications system which uses a POTS splitter to separate broadband and narrow band signals. A suitable frequency test signal such as 1 KHz tone is fed at sufficient amplitude to the broadband port ... | 11/16/2004 |
| 6704324 | Apparatus and method for transmission of voice band signals over a DSL line Apparatus and method for providing simultaneously multiple telephone-type services to any/all POTS-type devices on a single wire pair at a user premises. The present invention provides for the ability to add separately addressable POTS devices on a single... | 03/09/2004 |
| 6683951 | Method and apparatus for providing service to VODSL derived telephone lines during power interruptions An apparatus and method for maintaining access to lifeline services through telephone sets provided with telephone service from a voice over digital subscriber loop (VoDSL) transceiver during power interruptions are described. All telephone sets associate... | 01/27/2004 |
| 6665085 | Simultaneous voice and data communication for diagnostic procedures in a printing or copying machine A system for conveying diagnostic data from a machine, such as a digital copier or printer, to a remote specialist allows simultaneous transfer of diagnostic data and live voice data through the same communication channel. A distinct sequence of steps bet... | 12/16/2003 |
| 6587544 | Method for measuring a load impedance Method for measuring a load impedance (ZL) of a load circuit which is connected to an SLIC circuit (6) of an analog terminal connection of a terminal device, having the following steps: specifically a digital toll signal (x1) is gene... | 07/01/2003 |
| 6549610 | Subscriber circuit having splitter disconnection function A subscriber circuit allowing a reliable and proper subscriber line test is disclosed. The subscriber circuit includes a splitter and a feeder for feeding a current to subscriber equipment through a subscriber line. A path selector is provided to select o... | 04/15/2003 |
| 6535581 | Bypass for telephone system splitter In a telephone communication system employing a lower spectral band and a higher spectral band for communication of voice and video, wherein the system includes a first line for carrying signals at both the first and the second spectral bands and a second... | 03/18/2003 |
| 6519323 | Test unit for use at a network interface device A test unit provides testing capability at a network interface device (NID). The test unit may be remotely activated so that testing is initiated upon activation from a remote site. In one embodiment, a characteristic signal is sent over a telephone line ... | 02/11/2003 |
| 6504906 | Telephone micro-tester and transport system A telephone micro-tester and transport system for testing smaller remote SLC customer's lines and terminal equipment is provided. A micro-tester is located at a remote terminal for measuring and storing signatures of test performed on the SLC customer's l... | 01/07/2003 |
| 6470073 | Service state administration for a communications apparatus A communications system includes a switch having communications resources such as cards containing multiple devices, each containing multiple ports. The switch also contains an administrative agent that maintains hierarchical state information for each re... | 10/22/2002 |
| 6453016 | Method and apparatus for detecting and locating a fault in a telecommunications environment The invention presented herein is directed to a remotely addressable maintenance unit (RAMU) working in conjunction with a test head at the central office for detecting and locating faults in digital subscriber loop (DSL) and/or plain old telephone system... | 09/17/2002 |
| 6400802 | Method and apparatus for performing transmission line testing A method and apparatus for testing and measuring transmission line parameters, such as the post-dial delay, the line rate, the noise level and the signal level, among others. The method comprises the step of enabling an echo canceler present in the transm... | 06/04/2002 |
| 6343114 | Remotely addressable maintenance unit The invention presented herein is directed to a remotely addressable maintenance unit (RAMU) working in conjunction with a test head at the central office for detecting and locating faults in digital subscriber loop (DSL) and/or plain old telephone system... | 01/29/2002 |
| 6278769 | Signaling method for invoking a test mode in a network interface unit A network interface device intended to be placed approximate to the customers equipment and remote from a central office of a telephone company ("TELCO"). The purpose of the network interface device is to allow the twisted pair transmission line between t... | 08/21/2001 |
| 6246749 | Network interface unit and module A network interface module 50 is provided for mounting in a network interface unit 31. The module 50 is located in an accessible subscriber section 34. A circuit board 44 is located in a inaccessible service provider section 32. The two sections of the un... | 06/12/2001 |
| 6091950 | System and method for the control of a cellular radiocommunications network by means of a set of protocol analyzers and mobile stations A system and method control a cellular radiocommunications network, in particular according to the GSM standard. The system of control includes fixed means for the recording and time-stamping of signalling information travelling through at least one inter... | 07/18/2000 |
| 6091803 | Architecture for robust voice CTI A computer controlled telephone apparatus comprised of a processor controlled telephone set, apparatus for interfacing the telephone set to a telephone network, a computer for interfacing the telephone set, comprising a stored telephony service program fo... | 07/18/2000 |
| 5999593 | System and method for automatic PBX detection In a telephone network including a PBX connected between a central/public office switch and one or more terminals where a computer telephony interface is connected to the PBX, a system operatively associated with the computer telephony interface and respo... | 12/07/1999 |
| 5848127 | Two-wire channel unit with loopback test capability A two-wire channel unit or line card for use in a digital loop carrier (DLC) telephone system is disclosed. The channel unit is provided with a loopback test capability by using relays to open-circuit or short-circuit the input terminals of the hybrid cir... | 12/08/1998 |
| 5838766 | System and method for providing shared resources to test platforms A test system for testing a plurality of switches. A test platform requests the resources required for performing a test. A central configuration queue manager (CQM) determines whether the requested resources are available and allocates the resources to t... | 11/17/1998 |
| 5805668 | Electronic switching system for testing the status of subscriber components contained therein A novel system includes a first interfacing unit connected to a sending subscriber for converting analog subscriber information transmitted from the sending subscriber via a first subscriber line to digital subscriber information to provide it to a first ... | 09/08/1998 |
| 5761273 | Analog self-test circuitry for a trunk interface An integrated circuit is provided for a trunk interface which can test a trunk interface card. Switching circuitry couples tip and ring leads to signal detection circuitry which detects the typical ring and lead signal information. During testing, a test ... | 06/02/1998 |
| 5734696 | Testing telecommunications equipment A system for testing telecommunications equipment located at two sites includes a set of test instruments located at each site, a local test controller located at each site for controlling the test instrument at that site, and a master test controller con... | 03/31/1998 |
| 5712898 | D4 channel bank with multi-mode formatted, performance-monitoring communication bus A performance monitoring arrangement conducts auxiliary in-band communications between a line interface unit and one or more channel units of a D4 channel bank without interrupting transmission of digital data to and from a customer premises. During a fir... | 01/27/1998 |
| 5621782 | Test interface adapter emulating on test trunk interface for non-standard central office switch A test interface adapter allows a line-conditioning or test device, such as a direct access test unit (DATU), that is normally interfaced with a standard central office switch via a no-test trunk, to be coupled to and communicate with the respective ports... | 04/15/1997 |
| 5579368 | Device for monitoring a switch A switch sentry device (22) having a digital telephony switch (SCX, 16), a device (24) for processing information, a device (24, 34) for simulating a call from the processing device (24) to the switch (SCX, 16), a device (SCX, 16) responsive to the call s... | 11/26/1996 |
| 5406564 | Communication line backup system A communication line backup system provides a backup line for backing up a communication line which connects first and second subscriber terminals. The communication line backup system includes a first backup unit which is coupled to the first subscriber ... | 04/11/1995 |
