Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7711093 | Telecommunications test plugs having tuned near end crosstalk A set of telecommunications test plugs. A first test plug has a first test plug printed circuit board having circuit traces for establishing first predefined near end crosstalk between at least two of pairs of wires. The first predefined near end crosstalk is at a f... | 05/04/2010 |
| 7474737 | Telecommunications test plugs having tuned near end crosstalk A set of telecommunications test plugs. A first test plug has a first test plug printed circuit board having circuit traces for establishing first predefined near end crosstalk between at least two of pairs of wires. The first predefined near end crosstalk is at a f... | 01/06/2009 |
| 7321944 | User programming system using web server for private branch exchange A user programming system using a web server for a PBX is provided. A user program is loaded in the web server via a LAN interface. When necessary, a client accesses the web server by a general web browser and updates the user program on line or off line. ... | 01/22/2008 |
| 7304865 | Bridged parallel distributing frame A distributing frame (for example, FIG. 11) comprising a first distribution portion having a first series of verticals, and a first series of horizontal shelves; a second distribution portion having a second series of verticals, and a second series of horizon... | 12/04/2007 |
| 7298829 | Communications devices including test circuits and related circuits and methods A communications device can include first and second input terminals configured to provide coupling with respective first and second conductors of a communications line, and first and second signal conductors respectively coupled with the first and second input term... | 11/20/2007 |
| 7295655 | Systems and methods for determining the status of telephone lines Systems and methods for detecting a status of a telephone line. Some of the systems include a telecommunications system which comprises a dial tone tester integrated with a demarcation device. Such dial tone testers can include a visual device or an audible device i... | 11/13/2007 |
| 7283617 | Methods and test sets for testing multi-line telecommunications service Methods and test sets allow multi-line telecommunications services to be tested. The methods and test sets utilize multiple connections so that test connections to multiple lines can be made at once. Multiple test clips may be used where two clips are attached to tw... | 10/16/2007 |
| 7239687 | Telecommunications When delivering a broadband service, such as xDSL, without inband POTS, it is necessary to separate the analogue POTS signal and the xDSL signal from each other at both the CO (Central Office) and the CP (Customer's Premises). This can be achieved by using an active... | 07/03/2007 |
| 7218716 | Apparatus and method for switching incoming calls through to subscribers of a telecommunications network A switchboard apparatus and method for a telecommunications system, for switching incoming calls through to subscribers, with an input device for entering connection data of a required subscriber, a condition device for determining the telephone condition of the req... | 05/15/2007 |
| 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 |
| 7190767 | Telecommunications line test extension apparatus A method, apparatus and system is provided for testing a communications line. The method comprises removing a repeater from an access case connected to a telecommunications line, connecting a test adapter to the access case and a test extension apparatus to the test... | 03/13/2007 |
| 7177396 | Apparatus for management and remote control of electrical characteristics of wire pairs connected to a telephone exchange An apparatus for the management and the remote and/or automatic control of electric characteristics and signal transmissivity of the metallic line pairs connected to a telephone exchange, including measurement means and means able to connect said measurement means t... | 02/13/2007 |
| 7158614 | Metallic test access for xDSL connectors A metal port block is used on an intermediate distributor or vertical terminal block in a connection architecture to obtain a metal contact of the combined voice and data signals, which can subsequently be monitored by a test rack, without needing to disconnect or r... | 01/02/2007 |
| 7127042 | Device for providing dual monitoring of digital equipment A performance monitoring access device for a DSX system is disclosed herein. The monitoring device provides connection locations for readily connecting digital equipment to performance monitoring equipment. The monitoring devices allows for dual performance monitori... | 10/24/2006 |
| 7037814 | Single mask control of doping levels In an integrated circuit, dopant concentration levels are adjusted by making use of a perforated mask. Doping levels for different regions across an integrated circuit can be differently defined by making use of varying size and spacings to the perforations in the m... | 05/02/2006 |
| 7003085 | Customer service process for remotely assisting users of telephone and modem systems Systems and methods for remotely diagnosing, trouble shooting, and/or programming an end user telephone by a customer service representative using a telephone and modem system in communication with the user's telephone and modem system during a live telephone call b... | 02/21/2006 |
| 6970534 | Methods and test sets for testing multi-line telecommunications service Methods and test sets allow multi-line telecommunications services to be tested. The methods and test sets utilize multiple connections so that test connections to multiple lines can be made at once. Multiple test clips may be used where two clips are attached to tw... | 11/29/2005 |
| 6836536 | Clamp device integrating test device for telephone and network cables A clamp device includes a clamp body comprising a clamp head, a stationary holding part extending downwardly from one end of the clamping head, and a driving handle pivotally installed on one side of the clamping head, and an telephone and network cable test device,... | 12/28/2004 |
| 6813339 | Telecommunications line test extension apparatus An apparatus is provided for testing a communications line. The apparatus comprises a spool having at least eight terminals, and a length of wire wound on the spool. The wire has at least four subpairs of wires, each of which has opposite ends. A first end of each o... | 11/02/2004 |
| 6751253 | Communication port-powered digital communication interface for upgrading software-reconfigurable test set A digital communication interface for downloading software for upgrading the functionality of a telephone craftsperson's butt-in test set is configured to be powered externally by respectively different voltages ported from the host computer and the test set. Digita... | 06/15/2004 |
| 6556661 | In-line telephony data protector with line condition announce A data protector for telephony test equipment, comprising a relay for selectively connecting the telephony test equipment to a telecommunication line, and electronic circuitry. The electronic circuitry includes a detector portion adapted for detecting sig... | 04/29/2003 |
| 6519322 | Apparatus and method for testing subscriber loop interface circuits A method and apparatus for internally testing portions of a subscriber loop interface circuit. Testing may be conducted on a semiconductor circuit including the subscriber loop interface circuit. The portion of the subscriber loop interface circuit being ... | 02/11/2003 |
| 6516053 | System and method for testing telecommunication service installations A modular telecommunication test system is presented including a portable computer system and at least one portable telecommunication test module located external to the computer system. The portable computer system stores a telecommunication test applica... | 02/04/2003 |
| 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 |
| 6453014 | Test access and performance monitoring system and method for cross-connect communication network A system and method for accessing a number of communication lines by one or more testing devices is disclosed. Each of the communications lines is coupled through the system and includes a first termination at a first telecommunications termination site a... | 09/17/2002 |
| 6418195 | Apparatus for communicating a diagnostic device with a telecommunications system through a remote network unit An apparatus communicates a diagnostic device with a telecommunications service source, or alternatively with a telecommunications service subscriber device, through a remote network unit. The apparatus includes a test plug structure receivable in operati... | 07/09/2002 |
| 6385300 | Modular test instrument A modular test instrument comprises a base unit and one of a selection of application modules, neither being capable of performing end-user functions without the other. When physically assembled to one another, the base unit and application module compris... | 05/07/2002 |
| 6307469 | Remote detection device The present invention provides a remote detection device including a conventional measurement device, such as a thermostat, having an internal contact which is wired in series with a resistor and two wires of a standard telephone line. When the measuremen... | 10/23/2001 |
| 6219406 | Back wiring board and aggregated device A back wiring board which connects a printed board package to testers and an aggregated device of back wiring boards. A receiving portion receives a test demand signal from an external controller, a selector selects and connects one of the testers connect... | 04/17/2001 |
| 6185083 | Protected telecommunication test adapter module A protected telecommunications test adapter for use in troubleshooting telephone networks. The test adapter plugs into an industry standard panel and provides access to the network wiring via an RJ11 connector or clip posts. The test adapter has a surge p... | 02/06/2001 |
| 6055299 | Connector block with built-in array test feature A connector block including a built in test device for testing a pair of wires connected to the block. The connection block includes a first terminal that is connected to a first one of the pair of wires and a second terminal that is connected to a second... | 04/25/2000 |
| 5895294 | Plug module for DSX telecommunications jack module In accordance with the present invention, plugs are provided for insertion into the conventional "310" or bantam styles of DSX telecommunications jacks to permit monitoring of both transmit and receive circuit paths without injecting noise into those circ... | 04/20/1999 |
| 5835567 | Telephone line circuit testing jumper plug A testing device to close a circuit between first or second sections of a pair of lines within a connector block in which the first and second sections of each line are normally connected by pairs of connector parts with which the sections of the lines ar... | 11/10/1998 |
| 5592528 | Battery charging and signalling interconnect arrangement for craftsperson's To prevent entry of contaminants into a craft unit, each of a telephone signal connector (RJ11 jack) and DIN-type digital signalling link connector is replaced with a sealed, multi-pin plug/receptacle type connector which integrates the routing of both te... | 01/07/1997 |
| 5553136 | Modular device for telephone network interface apparatus A modular device for connecting telephone company wiring and subscriber telephone wiring in a telephone network interface apparatus, the modular device having a replaceable protection and/or electronics unit, a plug-actuated switchable socket or a switch ... | 09/03/1996 |
| 5418834 | Maintenance termination units This invention describes a maintenance termination unit often used in telephone lines and particularly the triggering circuit for use in such units. The triggering circuit uses two complementary transistors Q1, Q2 and a diode Z1 along with a resistor R an... | 05/23/1995 |
| 5404388 | Digital measurement of amplitude and phase of a sinusoidal signal and detection of load coil based on said measurement In digital measurement of the amplitude and phase of a sinusoidal signal of known frequency by the least square error method, the sampling frequency and sample size are carefully selected to satisfy a certain relationship. Under these conditions, the meas... | 04/04/1995 |
| 5276727 | Remote maintenance method and device thereof in private branch exchange system A method and device for maintaining a PBX system by connecting the PBX system with a remote maintenance center 220 through a public switch telephone network (PSTN), a method for transmitting a state information of the PBX system to the remote maintenance ... | 01/04/1994 |
| 5261061 | Remote maintenance and administration method in a switchboard system There is disclosed a method capable of maintaining and administering remotely a switchboard at each site with a computer in the remote switching operation center which gets through a public switching telephone network (PSTN). The improvement allows that a... | 11/09/1993 |
| 5228072 | Multiwire-pair telecommunications test system A dual unit diagnostic system for testing the physical status of a multi-pair cable. Each unit comprises connectors which are connectable to the cable wire pairs, and switches that are connected to the connectors, and are also activatable to provide disti... | 07/13/1993 |
