| Patent Number |
Title Of Patent |
Date Issued |
| 6282683 |
Communication system with multicarrier telephony transport |
August 28, 2001 |
| The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data |
| 6279158 |
Dynamic bandwidth allocation |
August 21, 2001 |
| The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data |
| 6278498 |
Apparatus and method for combining digital and analog television signals |
August 21, 2001 |
| An adjacent channel combiner combines an analog television channel with an upper adjacent digital television channel using practical filter designs. An aural signal of the analog television channel is combined after both a visual signal and a digital signal have been combined. A directio |
| 6275990 |
Transport of payload information and control messages on multiple orthogonal carriers spread thr |
August 14, 2001 |
| A bidirectional multipoint-to-point communications system for sending payload information over a distribution network is provided. The system includes a head-end terminal coupled to the distribution network to a plurality of service units. The head-end terminal includes a head-end co |
| 6266690 |
Enhanced service platform with secure system and method for subscriber profile customization |
July 24, 2001 |
| An enhanced telephone service system including a subscriber service manager and a customization module. The subscriber service manager is configured to receive subscriber transaction-ID requests, supply transaction identifiers and respond to queries for subscriber profile data. The c |
| 6263141 |
Optical fiber cable management device including storage tray |
July 17, 2001 |
| An optical fiber cable management device includes a housing and rotatable trays. The trays include a base, and various upstanding wall portions for defining cable guideways. Inner walls include curved segments. Four crescent shapes are provided for cable winding and cable protection. |
| 6249434 |
Surface mounted conduction heat sink |
June 19, 2001 |
| A system and method for conducting heat from electrical devices mounted on a circuit board is disclosed. A heat sink for conducting the heat is provided that includes a pair of substantially parallel vertical legs and a horizontal member coupled between the pair of substantially parallel |
| 6246807 |
Optical circulator |
June 12, 2001 |
| An optical circulator has a single focusing element to couple light between the circulator components and two optical fibers. The optical elements The input face of the first birefringent element of the circulator is adapted for the non-parallel light paths resulting from the single focu |
| 6242363 |
Method of etching a wafer layer using a sacrificial wall to form vertical sidewall |
June 5, 2001 |
| One embodiment of the invention is a method for forming a raised structure on a semiconductor wafer. In the method, a patterned masking layer is formed over a wafer layer. The patterned masking layer typically includes a first mask covering a first region of the wafer layer and at least |
| 6234836 |
Telecommunications jack assembly |
May 22, 2001 |
| The present disclosure relates to an insert for a jack. The insert includes a connector mount having a main body including a first side positioned opposite from a second side. The connector mount also includes a snap-fit connection structure positioned at the main body for securing the |
| 6233221 |
System and method for a ring network with virtual path connections |
May 15, 2001 |
| A network element for a virtual path ring network is provided. The network element includes a first ring interface module with a ring input and a ring output. Further, the network element includes a second ring interface module with a ring input and a ring output. A first bus is coupled |
| 6231380 |
Bulkhead connector system including angled adapter |
May 15, 2001 |
| An angled mounting plate is provided for mounting a connector at a bulkhead in an angled manner, such as for a coaxial or triaxial connector system. The angled mounting plate mounts to a yoke mounted around the connector. The yoke includes identical mounting halves held in place by faste |
| 6229863 |
Reducing waiting time jitter |
May 8, 2001 |
| Circuits and methods are described which reduce waiting time jitter at a synchronizer/multiplexer by using a "sub-bit" comparison of a clock associated with an unsynchronized data stream and a clock associated with a synchronized data stream to generate a threshold level for use in d |
| 6229855 |
Adaptive transmitter for digital transmission |
May 8, 2001 |
| A method for controlling the power and/or frequency output of a digital data network's transmitters is described. The method controls the transmitter power and/or frequency output by using line loss information as well as the noise margin at both the central office and remote site si |
| 6229640 |
Microelectromechanical optical switch and method of manufacture thereof |
May 8, 2001 |
| A MEMS-based optical switch having improved characteristics and methods for manufacturing the same are provided. In accordance with one embodiment, an optical switch includes a single comb drive actuator having a deflecting beam structure and a mirror coupled to the actuator. The mirror |
| 6223909 |
Cable management rack for telecommunications equipment |
May 1, 2001 |
| The present disclosure relates to a rack for mounting telecommunication chassis each adapted for receiving cross-connect modules. The rack includes a frame defining a bay formed between two spaced-apart, vertical end walls. The bay is sized for receiving the telecommunication chassis. |
| 6215938 |
Fiber optic cabinet and tray |
April 10, 2001 |
| A fiber optic cabinet has internal aligned guides on opposite sides of an axis opening. A splice tray has a planar tray base with a tray axis orthogonal to the base. The base has a peripheral edge sized for opposite portions of the peripheral edge to be slidably engaged with opposing one |
| 6215279 |
Power circuit with double current limiting |
April 10, 2001 |
| A method for controlling a power supply is provided. The method includes sensing a total current output by the power supply and sensing a charging current drawn from the power supply by a back-up power source. When the charging current exceeds a selected limit, a signal is provided to re |
| 6208796 |
Fiber optic module |
March 27, 2001 |
| A fiber optic module includes front adapters for connection to fiber optic connectors, and rear adapters for connection to fiber optic connectors. The module includes two circuits having passive optical couplers inside, and adapters exposed along the front and the rear of the module. The |
| 6208345 |
Visual data integration system and method |
March 27, 2001 |
| A visual data integration system architecture and methodology is disclosed. The system architecture includes a transport framework that represents a technology-independent integration mechanism that facilitates the exchange of technology-dependent data between disparate applications. A v |
| 6201919 |
Fiber distribution frame |
March 13, 2001 |
| A fiber distribution frame includes a support structure having a wall with a plurality of bulkhead assemblies secured to the wall. Each of the assemblies has opposing and spaced-apart slide plates. A connector support rod is positioned between the slide plates. The rod is slidably connec |
| 6192181 |
Optical cable exit trough |
February 20, 2001 |
| A cable exit trough is mountable to a lateral trough section either during initial assembly of the cable routing system, or at a later date. The exit trough includes a bracket portion mountable to the top edge of one of the sides of the lateral trough section. Two lead-ins are provided t |
| 6186798 |
High density patching system |
February 13, 2001 |
| The present disclosure relates to high density patching system. The system includes a card housing having a front end positioned opposite from a rear end. The card housing includes top and bottom walls extending between the front and rear ends. The top and bottom walls define opposing se |
| 6182185 |
Port switches |
January 30, 2001 |
| A port switch includes n bidirectional communication ports and a router having n inputs connected to the n ports respectively and n outputs connected to the n ports respectively and including a staging RAM and a switch responsive to data in the staging RAM for connecting the ith router |
| 6177783 |
Current balancing for voltage regulator having inputs from multiple power supplies |
January 23, 2001 |
| A voltage regulator is provided. The voltage regulator comprises a first voltage-controlled current regulator having a first power input and at least one additional voltage-controlled current regulator having at least one other power input. The first and the at least one additional v |
| 6167174 |
Multiple port, fiber optic isolator |
December 26, 2000 |
| A multiport isolator provides optical isolation between pairs of optical fibers so that light may pass from a first fiber to a second fiber of the pair, but not from the second fiber to the first fiber. The multiport isolator has first and second coupling modules to couple light from |
| 6160946 |
Outside plant fiber distribution apparatus and method |
December 12, 2000 |
| An outside plant fiber distribution apparatus includes a frame member and a plurality of fiber optic modules mounted to the frame member. The frame member includes upper and lower module mounting brackets. Each module includes a front and two mounting flanges, each mountable to one of th |
| 6157646 |
Circuit and method for service clock recovery |
December 5, 2000 |
| A circuit and method for synchronizing a service clock at a destination node with a service clock at a source node for circuit emulation service over a packet network. The method includes receiving data packets from a source node at at least one port of the destination node. At the d |
| 6154581 |
Multiple port, fiber optic circulator |
November 28, 2000 |
| A reflective circulator includes a birefringent splitting and combining element, a non-reciprocal polarization rotator, and birefringent translating element. Some embodiments of the circulator include an inverting reflector. The circulator can be scaled to have a large number of port |
| 6154462 |
Circuits and methods for a ring network |
November 28, 2000 |
| A ring switch for a ring network is provided. The ring switch includes at least one ring port that is coupleable to transport data packets in a ring network. Further, the ring switch includes at least one local port that is coupleable to at least one local area network. The ring switch a |
| 6151480 |
System and method for distributing RF signals over power lines within a substantially closed env |
November 21, 2000 |
| A system for distributing RF signals to users over power lines in a structure. The system includes a head end unit that receives RF signals in a first frequency range to be distributed to users in the structure. The head end unit is coupled to the power lines of the structure. RF signals |
| 6146192 |
Bulkhead connector system including angled adapter |
November 14, 2000 |
| An angled mounting plate is provided for mounting a connector at a bulkhead in an angled manner, such as for a coaxial or triaxial connector system. The angled mounting plate mounts to a yoke mounted around the connector. The yoke includes identical mounting halves held in place by faste |
| 6142676 |
Fiber connector and adaptor |
November 7, 2000 |
| Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. |
| 6116961 |
Jack assembly |
September 12, 2000 |
| The present disclosure relates to a jack assembly including a jack mount having a front side and a rear side. The jack mount has top and bottom supports defining a jack receiving region that opens outward toward the front side of the jack mount. A jack of the assembly is adapted to be |
| 6112086 |
Scanning RSSI receiver system using inverse fast fourier transforms for a cellular communication |
August 29, 2000 |
| A microcellular communications network includes a plurality of base station units and corresponding antenna units. The microcells connected to their respective base station units over a telephone system. The microcells providing received signal strength indication (RSSI) level signals an |
| 6109963 |
Repairable connector and method |
August 29, 2000 |
| A repairable transmission line connector is provided where the center conductor has a front removable portion, and a rear portion crimped to the center conductor of the transmission cable. An outer sleeve mounted to a first coaxial conductor of the cable includes a removable front portio |
| 6102214 |
Cable management rack for telecommunications equipment |
August 15, 2000 |
| The present disclosure relates to a rack for mounting telecommunication chassis each adapted for receiving cross-connect modules. The rack includes a frame defining a bay formed between two spaced-apart, vertical end walls. The bay is sized for receiving the telecommunication chassis. |
| 6094109 |
Power takeoff inductor |
July 25, 2000 |
| A power takeoff inductor is an inductor comprised of a hybrid core. Materials with varying low and high permeabilities are combined to create a common hybrid core for the inductor. The inductor can be used in power transmission systems where signals of lower frequencies are transmitted |
| 6089923 |
Jack including crosstalk compensation for printed circuit board |
July 18, 2000 |
| A forward-reverse crosstalk compensation method is provided for compensating capacitance/inductance on a printed circuit board of a connector. The method includes a forward compensation process and a reverse compensation process. The forward compensation process compensates the unbal |
| 6076973 |
Fiber connector and adapter |
June 20, 2000 |
| Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. |
| 6076779 |
Cable guiding trough |
June 20, 2000 |
| A bendable cable trough section is provided having a U-shaped cross-section, such as for holding telecommunications cables. In one embodiment, alternating segments of rigid first sections and compressible second sections are provided. The first sections are preferably made of plastic |
| 6049824 |
System and method for modifying an information signal in a telecommunications system |
April 11, 2000 |
| A method for selectively modifying an information signal at a remote site in a telecommunications system having a head end and a number of remote sites connected to form a ring. An initiation signal is received at a head end. The initiation signal indicates when to start modifying the |
| 6049709 |
RF circuit module |
April 11, 2000 |
| A module for radio frequency signal circuits includes an electrically conductive housing. Coax connectors are secured to the rear face of the housing. A circuit board is contained within the interior spaced between sidewalls of the housing. A ground side of the circuit board includes a |
| 6045378 |
Switching coaxial jack with impedance matching |
April 4, 2000 |
| A switching coaxial jack (10') includes first and second parallel aligned electrically conductive coaxial center conductors. The center conductors are divided into front portions (42a', 44a') and rear portions (50a', 52a'). The rear portions include movable springs to separate the rear |
| 6008734 |
Method and system for diminishing phase shift between two signals |
December 28, 1999 |
| The apparatus includes a plurality of components, including a first component, a center component, a component adjacent to the center component, and a last component. The apparatus also includes a first signal source generating a first signal, and a second signal source generating a |
| 5991541 |
Dynamically modifiable call processing methods and apparatus |
November 23, 1999 |
| Dynamically modifiable call processing logic includes creating a Basic Call State Machine (BCSM) which is an instantiation of a dynamically executable Call Model having one or more initialization files and one or more shared library functions. The Call Model supplies the BCSM with Advanc |
| 5986486 |
Circuits and methods for a phase lock loop for synchronous reference clocks |
November 16, 1999 |
| A phase lock loop circuit. The phase lock loop circuit includes first and second pass gates. The pass gates include signal inputs that receive first and second reference signals, respectively. The pass gates also have enable inputs. The phase lock loop also includes a loop filter that is |
| 5984531 |
Fiber connector and adapter |
November 16, 1999 |
| Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. |
| 5978650 |
System and method for transmitting data |
November 2, 1999 |
| A transmission system (10). The transmission system communicates data to a number of subscribers (14a, 14b). The transmission system includes a transceiver (12) that has a number of highly directional antennas (28). A number of digital repeaters (16a, 16b, 16c) are disposed in a geograph |
| 5977835 |
Method and circuit arrangement for reducing passband ripple of a bandpass filter |
November 2, 1999 |
| The passband ripple of a filter arrangement, including an amplifier and a bandpass filter, is tuned to a desirable level at the expense of the output return loss of the filter arrangement. Thus, the output return loss is increased as a result of reducing the ripple. To reduce the output |
