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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 8184929 | Method of tuning optical components integrated in a monolithic photonic integrated circuit (PIC) An optical transmitter comprises a monolithic transmitter photonic integrated circuit (TxPIC) chip that includes an array of modulated sources formed on the PIC chip and having different operating wavelengths approximating a standardized wavelength grid and providin... | 05/22/2012 |
| 8175113 | Communication network with node bypassed co-routed multi-channel traffic Embodiments of the present invention route a wavelength division multiplexed signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is a wavelength division multiplexed optical transport network... | 05/08/2012 |
| 8165017 | GMPLS fast re-route for OADM and AUX 10MBPS support Embodiments of the present invention provide a GMPLS fast re-route of packets within a network using a multicast address and a table comprising a list of alias IP addresses. According to various embodiments of the invention an alternate data path from a source node ... | 04/24/2012 |
| 8160405 | Optical integrated circuit Consistent with the present disclosure, a non-adiabatic polarization rotator is provided that can rotate the polarization of an incoming over a relatively short length. Light is supplied to the polarization rotator via a polarizer, which insures that the optical inp... | 04/17/2012 |
| 8155531 | Tunable photonic integrated circuits Photonic integrated circuits (PICs) may include transmit and receive PICs that include individually tunable optical elements. In one implementation, a device may include a number of optical elements that form a number of optical channels. Tuners may be used to modif... | 04/10/2012 |
| 8155488 | Wavelength locking and power control systems for multi-channel photonic integrated circuits (PICs) A transmissive active channel element is provided in each signal channel of a monolithic multi-channel TxPIC where each channel also includes a modulated source. The active channel element functions both as a power control element for both monitoring and regulating ... | 04/10/2012 |
| 8149687 | Intra-node fault recovery within a multi-stage switching architecture A system, apparatus and method for dynamic intra node rerouting is described. In one embodiment of the invention, a multi-stage architecture within a network node is provided in which various module cards, including intermediary module cards, are interconnected with... | 04/03/2012 |
| 8135279 | OFDM direct detection using a balanced receiver A receiver for demodulating optical OFDM signals may detect an optical OFDM signal that includes a carrier and data subcarriers by optically splitting the carrier from the subcarriers using a frequency selective filter and then recombining the carrier and the subcar... | 03/13/2012 |
| 8116602 | High efficiency optical mode transformer for matching a single mode fiber to a high index contrast planar waveguide The present invention includes a device and a method for fabricating a device that is an optical power mode transformer that accepts light in a mode transformation direction where the transformer is attached to or embedded in a semiconductor microchip and includes a... | 02/14/2012 |
| 8111996 | Compact optical multiplexer and demultiplexer Consistent with the present disclosure, an arrayed waveguide grating (AWG) is provided that includes first inputs and second inputs. Each of the first inputs receives a corresponding one of a plurality of first optical signals, each of which has a corresponding one ... | 02/07/2012 |
| 8111685 | Communication network with co-routed multi-channel traffic Embodiments of the present invention route a wavelength division multiplexed signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is a wavelength division multiplexed optical transport network... | 02/07/2012 |
| 8103136 | Thermo-optic devices providing thermal recirculation Thermo-optical devices providing heater recirculation in an integrated optical device are described. The thermo-optical devices include at least one waveguide having a non-linear path length in thermal communication with a thermal device. Methods of fabrication and ... | 01/24/2012 |
| 8098996 | Adaptable duobinary generating filters, transmitters, systems and methods A variety of adaptable electronic duobinary generating filters to be used in communication systems are provided, each filter generating an adaptable electronic duobinay signal which is optimized for system impairments. According to one exemplary implementation, an a... | 01/17/2012 |
| 8068734 | Mapping a client signal into transport frames Embodiments of the present invention provide a systems, devices, and methods in which a client signal is divided into a plurality of channels, mapped within transport frames, and combined into a WDM transport signal. These embodiments include intra-nodal redundancy ... | 11/29/2011 |
| 8064771 | Active control loop for power control of optical channel groups A system, apparatus and method are described for deployment of a control loop between optical or electro-optical modules and a multiplexing module to provide a desired power profile of banded optical channel groups. The power output characteristics of the optical or... | 11/22/2011 |
| 8064486 | Determination of channel latency within a round-trip path The present invention provides a system, apparatus, and method for determining latency differences in channels within a link at a single test site. In particular, the method allows for a single transmitting device to determine distinct latency differences on both tr... | 11/22/2011 |
| 8054876 | Active delay line A delay line for deployment in an equalizer to insert a delay in a signal received by the delay line employs a plurality of cascaded delay stages where the delay per stage provided by an active unit-gain amplifier in each stage that provides sufficient impedance mis... | 11/08/2011 |
| 8014686 | Polarization demultiplexing optical receiver using polarization oversampling and electronic polarization tracking An optical receiver utilizes differential quadrature phase-shift keying (DQPSK) demodulation and electrical crosstalk rejection to relax requirements on filter misalignment with a carrier signal and to enable electronic polarization demultiplexing of optical signals... | 09/06/2011 |
| 8009940 | Photonic integrated circuit with improved signal quality and electrostatic discharge threshold Embodiments of the present invention provide for enhanced monitoring of optical signal characteristics of an optical signal propagating in a signal channel of a photonic integrated circuit. The optical signal characteristics can be obtained with minimal signal loss ... | 08/30/2011 |
| 7995921 | Banded semiconductor optical amplifiers and waveblockers Embodiments of the present invention provide an array of semiconductor optical amplifiers, within a photonic integrated circuit (hereinafter, “PIC”), that apply a gain to one or more optical bands within a WDM signal. According to various embodiments of the inve... | 08/09/2011 |
| 7974504 | Reflection suppression in a photonic integrated circuit Embodiments of the present invention provide systems, devices and methods in which optical reflections are reduced in a photonic integrated circuit. These embodiments include reflection suppression elements which operate to dissipate optical energy that would otherw... | 07/05/2011 |
| 7970280 | Thermally-floating transmitter wavelength grid of signal channels in a WDM transmission system A method and apparatus is provided for tracking a thermally floating wavelength signal channel grid generated at an optical transmitter (Tx) in an optical transmission system or optical network where the wavelengths of the individual Tx signal channels may move in w... | 06/28/2011 |
| 7970114 | Consistency of state model visualization across different standard attributes A system, apparatus and method are described for displaying multiple attributes relative to objects in a network management program. In one embodiment, multiple attributes from a plurality of different standards are coalesced together and the coalesced attributes ar... | 06/28/2011 |
| 7969868 | Path-level protection for digitally wrapped payloads A node, of a group of nodes, may detect a failure on a first path; establish a connection associated with a second path when the failure on the first path is detected; store an identifier in a field in an overhead portion of a data frame when the failure on the firs... | 06/28/2011 |
| 7965915 | Hermaphroditic u-guide alignment structures and method thereof An integrated optical waveguide circuit apparatus having an optical processing area, waveguide ports for optical processing, and at least one waveguide structure, the at least one waveguide structure going around the optical processing area. Methods for making the i... | 06/21/2011 |
| 7961994 | Optical interface assembly An optical device includes a first waveguide having an end portion configured to receive an optical signal, the optical signal having a fundamental mode; a second waveguide having an end portion spaced from the end portion of the first waveguide; and a cladding laye... | 06/14/2011 |
| 7961053 | Integrated circuit having a dummy transimpedance amplifier Consistent with the present disclosure, a “dummy” transimpedance amplifier (dummy TIA) is provided on a substrate along with one or more other transimpedance amplifiers (TIAs) that are connected to photodiodes and output voltage signals for further processing. T... | 06/14/2011 |
| 7889642 | GMPLS fast re-route for OADM and AUX 10Mbps support Embodiments of the present invention provide a GMPLS fast re-route of packets within a network using a multicast address and a table comprising a list of alias IP addresses. According to various embodiments of the invention an alternate data path from a source node ... | 02/15/2011 |
| 7881612 | Optical autodiscovery for automated logical and physical connectivity check between optical modules Optical autodiscovery is provide between two optical modules to insure that when an optical signal is coupled between the two optical module, the optical signal from a first module does not interfere with operation of a second module. The autodiscovery is implemente... | 02/01/2011 |
| 7877016 | Photonic integrated circuit (PIC) transceivers for an optical line terminal (OLT) and an optical network unit (ONU) in passive optical networks (PONs) A photonic integrated circuit (PIC) for a PON transceiver comprises a single monolithic chip having a modulated transmitter laser diode of a first wavelength, λ1, for generating a first communication signal outgoing from the chip via an input/output port... | 01/25/2011 |
| 7840103 | Performance compensated Tx/Rx optical devices A wavelength division multiplexing system has a wavelength division multiplexer and a wavelength division demultiplexer. The wavelength division demultiplexer is in series with the wavelength division multiplexer to process at least one optical signal to generate at... | 11/23/2010 |
| 7802924 | Fiber optic ferrule Consistent with the present disclosure, a ferrule is provided that includes first and second channels, for example. Multiple fibers of a ribbon cable, for example, are divided into groups and fed into corresponding channels of the ferrule. Since multiple channels ar... | 09/28/2010 |
| 7801446 | Wavelength division multiplexed optical communication system with rapidly-tunable optical filters The present invention provides a WDM optical system that includes a tunable filter for selecting one or more optical channels from a WDM optical signal. A portion of a WDM signal enters a first optical filter stage that exhibits a periodic transmission spectrum and ... | 09/21/2010 |
| 7792396 | Probe card for testing in-wafer photonic integrated circuits (PICs) and method of use Method and apparatus for utilizing a probe card for testing in-wafer photonic integrated circuits (PICs) comprising a plurality of in-wafer photonic integrated circuit (PIC) die formed in the surface of a semiconductor wafer where each PIC comprises one or more elec... | 09/07/2010 |
| 7792017 | Virtual local area network configuration for multi-chassis network element A system, apparatus, and method for providing a plurality of internal VLANs within a networking element/node are described. Internal VLAN topologies are provisioned so that a particular VLAN(S) communicate traffic to corresponding applications. This segregation of i... | 09/07/2010 |
| 7783746 | Efficient synchronization of element management systems to network element attributes A system, apparatus and a method are described that synchronizes multiple element management systems with a network element. The synchronization between the management entities within the element is maintained by employing special attributes, such as sentry identifi... | 08/24/2010 |
| 7783142 | Low stress package Consistent with the present disclosure, a package is provided in which the PLC substrate, for example, is bonded to the underyling carrier though a limited contact area. The rest of the substrate is detached from the carrier so that stresses are applied to a limited... | 08/24/2010 |
| 7747114 | Tilted combiners/decombiners and photonic integrated circuits (PICs) employing the same A monolithic optical transmitter photonic integrated circuit (TxPIC) comprises a plurality of integrated modulated sources which, when all operated at constant current, display a power output that varies as a function of array position similar to a quadratic-shaped ... | 06/29/2010 |
| 7702188 | Polarization beam splitter-polarization rotator structure A polarization beam splitter-polarization rotator-polarization beam combiner optical structure comprising a pair of polarization rotators having a polarization beam splitter associated with the input ends of the two polarization rotators, and a polarization beam com... | 04/20/2010 |
| 7697580 | Monitoring of a laser source with front and rear output photodetectors to determine frontal laser power and power changes over laser lifetime A power monitoring and correction to a desired power level of a laser or group of lasers utilizes two photodetectors which are employed to accurately determine the amount of output power from the front end or “customer” end of a laser or a plurality of such lase... | 04/13/2010 |
