| Patent Number |
Title Of Patent |
Date Issued |
| D553105 |
Housing for fiber sub-system |
October 16, 2007 |
|
| D461797 |
Housing for telecommunications module |
August 20, 2002 |
|
| 7454012 |
Managing power in a line powered network element |
November 18, 2008 |
| A system for managing power from a power source for at least one line powered network element in an access network is provided. The system includes a power manager that establishes at least one power criterion for the at least one network element. Further, the system includes a power |
| 7443789 |
Protection switching mechanism |
October 28, 2008 |
| A system and method for protection switching in a transmission network is described. A protection switching mechanism comprises a multiplexer, a transmission path for each output of the multiplexer and a remote circuit. The multiplexer has an input coupled to receive an input signal |
| 7436161 |
Circuit and method for reducing the size and cost of switch mode power supplies |
October 14, 2008 |
| An improved circuit and method for decreasing the size and cost of switch mode power supplies is disclosed. In one illustrative example, a feedback circuit for a switch mode power supply is disclosed that includes two error amplifiers. The input of a first error amplifier is coupled to a |
| 7433165 |
Auto-resetting span-power protection |
October 7, 2008 |
| Systems and methods for auto-resetting span power protection are provided. In one embodiment, a method for deactivating a protective device is provided. The method comprises determining when an overload condition occurs on a communication medium; when the overload condition occurs, d |
| 7385991 |
Ingress cell processing at a user-network interface |
June 10, 2008 |
| A method for processing cells at a user-network interface with automatic identification of virtual circuit identifiers and a testing function is provided. The method includes distinguishing the source of the cell. When the cell is from a first source, the method tests the cell against at |
| 7352946 |
Fiber sub-system for a shelf |
April 1, 2008 |
| A fiber sub-system is provided. The fiber sub-system comprises a fiber optic transmission module, one or more contact boards adapted to couple to shelf interface connectors, and a midplane adapted to couple with the one or more contact boards and the fiber optic transmission module e |
| 7340051 |
Power ramp-up in a line-powered network element system |
March 4, 2008 |
| A method of ramping up a power supply that supplies power on a communication medium. The method includes supplying power on the communication medium with the power supply operating at a first set point, determining if an overload condition exists, and, if the overload condition does |
| 7330543 |
Termination for a line card in a telecommunication system |
February 12, 2008 |
| A system of terminating signals in a telecommunication system is disclosed. In one embodiment a line card comprises functional circuitry, line card connector contacts and a termination resistor. The functional circuitry is used to interface first type ports with second type ports. Th |
| 7330423 |
High-speed digital subscriber line (HDSL) packet abort retry during channel blocking |
February 12, 2008 |
| An apparatus and method is described that allows for improved transmission of EOC data over the EOC channels of communication devices and links, reducing the number of dropped EOC packets and increasing the bandwidth and robustness of the EOC channel. The improved device apparatus and |
| 7299285 |
Resource sharing with database synchronization |
November 20, 2007 |
| A system uses a resource locking token to allow various processes to have exclusive access to a system resource. The process that receives the token then requests that a local database be updated/synchronized with a master database. The process continues checking the synchronization |
| 7298121 |
Circuit and method for increasing the stability of switch-mode power supplies |
November 20, 2007 |
| An improved circuit and method for increasing the stability of switch-mode power supplies via frequency fold-back is disclosed. For example, a circuit for increasing the stability of a switch-mode power supply using the compensation signal to control the frequency of the oscillator is |
| 7274731 |
Non-chronological system statistics |
September 25, 2007 |
| A communications device apparatus and method is detailed that allows for improved system statistics gathering of network communication links, dataports, and system status. The improved communications device apparatus and method utilizes a relative time reference or clock for the dete |
| 7272002 |
Auxiliary cooling methods and systems for electrical device housings |
September 18, 2007 |
| Methods and systems for auxiliary cooling of electrical device housings are provided. In one embodiment, an electronics device enclosure system is provided. The system comprises a housing, wherein the housing encloses one or more electronic devices; a backplane situated within the housin |
| 7254217 |
Fault characterization using information indicative of echo |
August 7, 2007 |
| A fault associated with a communication medium is analyzed by correlating a first set of information indicative of echo associated with the communication medium with a second set of information indicative of echo. The fault is characterized based on the correlation between the first set |
| 7239627 |
Digital subscriber line services |
July 3, 2007 |
| A system for extending the effective distance of digital subscriber line service is provided. The system includes a central office terminal having a data interface and a plurality of line units. The system further includes at least one communication link, coupled to one of the plurality |
| 7237206 |
Message passing in a graphical user interface |
June 26, 2007 |
| A graphical user interface element such as a window or a screen is displayed on an output device by sending a single message indicating that the graphical user interface element should be displayed. The message is received, and all the components of the graphical user interface element |
| 7237204 |
Change detection in a graphical user interface |
June 26, 2007 |
| A first process communicates to a second process what data will be used to display a graphical user interface element such as a window or screen. The second process determines if the data used to display the graphical user interface element has changed, and, if the data used to display t |
| 7190783 |
Integrated digital subscriber line transceiver |
March 13, 2007 |
| An integrated digital subscriber line transceiver includes a single integrated circuit that has a digital signal processing engine, a time division multiplexing framer (for example, a T1/E1 framer), and a static random access memory. The integrated circuit also includes a microproces |
| 7188268 |
Method and apparatus for synchronous loading and out-of-phase unloading of data registers |
March 6, 2007 |
| An output of a first data register is coupled to an input of a second data register. The same periodic clock signal clocks both data registers. A controller monitors the clock signal, a first load signal and a read signal. The controller generates a guard band signal using the clock |
| 7177267 |
Hardware monitoring and configuration management |
February 13, 2007 |
| A transmission system is provided. The system includes a hardware monitor adapted to collect performance information about associated hardware components, a system information database adapted to refresh based on the collected performance information and to generate system status inf |
| 7173941 |
Resilient detection of repeaters |
February 6, 2007 |
| An apparatus and method are detailed that allows for improved detection of communication devices and/or doublers in an associated physical communication links, in particular on HDSL communication links. The improved device apparatus and method additionally allows for the communicatio |
| 7170894 |
Establishment of an end to end virtual connection |
January 30, 2007 |
| A method for establishing an end-to-end virtual circuit is provided. The method includes establishing a permanent virtual circuit between customer premises equipment and a digital subscriber line access multiplexer. The method further includes embedding information for a permanent virtua |
| 7169288 |
Methods and systems of cathodic protection for metallic enclosures |
January 30, 2007 |
| Systems and methods of cathodic protection. The system includes a metallic housing, a backplane situated within the metallic housing, a cathodic protection card coupled to the backplane and a permanent anode, external to the metallic housing, coupled to the cathodic protection card throu |
| 7152312 |
Method for transmitting current through a substrate |
December 26, 2006 |
| A method for transmitting high-frequency current through a substrate is provided. The method comprises receiving the high-frequency current at a via passing through at least one conductive plane disposed within the substrate and coupled to the via with one or more tabs which span a gap |
| 7142592 |
Determining speed of a digital signal in a serial transmission line |
November 28, 2006 |
| A device for determining speeds of a digital signal in a serial transmission line. The device comprises a first and second counter and a logic circuit. The first counter is adapted to count the duration of a first pulse in a first byte of the digital signal in the transmission line. |
| 7142538 |
Message-based communication over bus between cards in an electronic module |
November 28, 2006 |
| A method for communicating between cards in an electronic module is provided. The method includes generating a message for transmission at a first card. The message is transmitted over a bus to a second card by-passing an IP stack at the first card. A queue at the second card is moni |
| 7139177 |
Printed circuit board with void between pins |
November 21, 2006 |
| A circuit board includes at least one insulator layer and a plurality of conductors over which a plurality of signals is carried. A plurality of terminals is coupled to at least a subset of the plurality of conductors. A void is formed in the circuit board between at least two terminals. |
| 7133367 |
Embedded cell loopback method and system for testing in ATM networks |
November 7, 2006 |
| The present invention relates to a method and apparatus for testing components in ATM networks utilizing loop-back based ATM layer testing. The method and apparatus utilize interfaces and identifier codes to send and loop-back test cells along portions of virtual channels to test the |
| 7119702 |
Audible relay emulator |
October 10, 2006 |
| A device to audibly verify the activation of a solid state relay. The device includes an audio output device that is coupled to the solid state relay to produce a sound when the solid state relay is activated. The sound produced by the audio output devices emulates the sound of an el |
| 7118697 |
Method of molding composite objects |
October 10, 2006 |
| Methods for molding a surround over a liner to form a composite shell are provided. The liner is placed in a mold and molten surround material is injected into the mold so as to surround the liner. A surface of a protrusion of the liner abuts the mold so that the surface is exposed and |
| 7113591 |
Current sense circuit in a line powered network element |
September 26, 2006 |
| Managing line power for network elements in an access network. In one embodiment a current sense system in a line power network is disclosed. The current sense system includes a power supply, a splitter and a sense circuit. The power supply is adapted to supply output current to a tw |
| 7106573 |
Protection circuit for a digital subscriber line device |
September 12, 2006 |
| A protection circuit for a DSL transceiver unit includes a capacitor connected in series between a first and second portion of a primary winding of a transformer. The first and second portions are coupled to first and second lines, respectively, of a twisted-pair telephone line. A fi |
| 7088742 |
Concurrent transmission of traffic from multiple communication interfaces |
August 8, 2006 |
| Line termination units having dual ports for accepting communication traffic of two different types facilitate the concurrent transmission of voice traffic, serial data traffic and packetized data traffic across a telecommunication transport system, such as a DSL (digital subscriber |
| 7057475 |
Ferrite choke |
June 6, 2006 |
| An apparatus to filter noise from being induced into a power line. In one a ferrite choke is disclosed that filters noise from being induced into a power line. The ferrite choke includes a tube of ferrite, a supply power line and a return power line. The tube of ferrite is made of a sing |
| 7051249 |
Analyzing a bit error rate of a communication link |
May 23, 2006 |
| A bit error rate or other performance characteristic of a communication link is monitored using a state machine. The state machine includes at least three states -- for example, a NO ALARM state, an ALARM DETECTION state, and an ALARM state. A sliding window is used to determine when to |
| 6998964 |
Splitter |
February 14, 2006 |
| A splitter for enabling a power signal and a communication signal to be transmitted over a common communication link is provided. The splitter includes a line port adapted to be coupled to a communication line, a power port adapted to be coupled to a power supply to receive a power s |
| 6992404 |
Line powering of auxiliary equipment |
January 31, 2006 |
| A remote assembly is provided. The remote assembly includes multiple line powered remote units, an input power sharing circuit adapted to receive power from each of the multiple line powered remote units and provide a variable output voltage to power auxiliary equipment and a control |
| 6990110 |
Automatic permanent virtual circuit connection activation for connection oriented networks |
January 24, 2006 |
| A method of automatic permanent virtual circuit connection activation is provided. The method includes detects initiation of communication between a first and a second network element at a first reference point. The method further receives at least one virtual circuit identifier of the |
| 6988207 |
Scan insertion testing of ASICs |
January 17, 2006 |
| A circuit that uses a bi-directional buffer as follows: First a tri-state output buffer is connected to a functional clock and a bi-directional port is connected to a test clock. The bi-directional buffer is configured to receive control signals to selectively block and unblock the t |
| 6978395 |
Protection switching of interface cards in communication system |
December 20, 2005 |
| A communication system includes primary and secondary interface cards. A switching circuit allows both of the interface cards to selectively communicate over a medium without inducing reflection. Further, an automatic detection system is provided to allow a management circuit to iden |
| 6977540 |
High-speed isolated port |
December 20, 2005 |
| A port isolator apparatus includes an optical isolator circuit that electrically isolates an input circuit from a high-speed output circuit. The input circuit uses a transistor to control the current flow of a data signal into the optical isolator. The optical isolator generates, from th |
| 6973600 |
Bit error rate tester |
December 6, 2005 |
| A device apparatus and method are detailed that allow for improved bit error rate (BER) testing, configuration, and operation of a communication device and associated physical communication link, in particular on a HDSL communication device and link. The improved communication device app |
| 6967585 |
Input voltage sense circuit in a line powered network element |
November 22, 2005 |
| Methods and systems of monitoring voltage input to network elements are provided. One method includes receiving an input voltage for a line-powered network element, applying the input voltage across a primary winding of a flyback power converter during an on-time of a primary switch, |
| 6958552 |
Failsafe power oring with current sharing |
October 25, 2005 |
| A current sharing circuit provides redundant power supplies with current sharing through the use of multiple feedback loops and existing circuit diodes to generate shared load current within predefined load voltage regulation requirements. A method of sharing current allows adjustment of |
| 6954577 |
System and devices for routing and managing data cables from a telecommunications enclosure |
October 11, 2005 |
| A system for managing and routing one or more data cables is disclosed. This system comprises a telecommunications enclosure and a cable routing station. The telecommunications enclosure has an external surface that houses at least one data cable. The cable routing station is coupled to |
| 6954531 |
Software controlled ring voltage generator |
October 11, 2005 |
| A ring voltage generator uses values stored in random access memory to generate a train of pulses used to drive a voltage waveform to ring a telephone ringer. The values are stored in RAM, and are programmable by a user without requiring a change in the ring voltage generator design. |
| 6898543 |
In-system testing of an oscillator |
May 24, 2005 |
| Testing an oscillator and other electronic devices on a circuit board. One method of the present invention comprises powering the oscillator. Providing test instructions to a microprocessor on the circuit board to place the microprocessor in a test mode. Receiving a clock signal from the |
| 6895089 |
Pots splitter with line impedance matching |
May 17, 2005 |
| Resistance in parallel with inductors in a series leg of the low-pass filter facilitates changing input and output resistance of the filter with little or no change in the reactance of the inductors. Furthermore, the reactance of the capacitors in the shunt legs of the filter will be |
