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Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 8126333 | Optical transmission system and synchronization method using time reference pulse An OLT includes a first transmitter and receiver unit for transmitting and receiving signals with ONUs, a first communication control timer, a measurement unit for measuring a round trip time (RTT) between the OLT and each of ONUs, an advance notice time generation ... | 02/28/2012 |
| 7995924 | Method and system for generating switching control signal separating transmission signal in optical repeater employing TDD scheme Disclosed are a method and a system for generating switching control signal separating transmission signal on an access point and a mobile communication terminal in an optical repeater employing, for example, a TDD scheme. The method includes the steps of generating... | 08/09/2011 |
| 7965941 | Multichannel optical transport network time domain reflectometry calibration A system and method are provided for controlling time delay in a multichannel optical transport network (OTN) transmission device using time domain reflectometry (TDR) measurements. The method accepts a pair of 2n-phase shift keying (2n-PSK) mo... | 06/21/2011 |
| 7945165 | Optical signal synchronizer One embodiment of the invention provides an optical signal synchronizer having a plurality of optical channel synchronizers. Each optical channel synchronizer receives a respective input wavelength division multiplexing (WDM) signal and processes it to produce a cor... | 05/17/2011 |
| 7623791 | Optical signal multiplexing device and optical signal multiplexing method An optical signal multiplexing device includes a delay-amount adjusting unit that converts wavelengths of optical signals to be multiplexed when the optical signals are obtained, and adjusts delay amounts of the optical signals by passing the wavelength-converted op... | 11/24/2009 |
| 7567757 | Generating of high rate modulated pulse streams All-optical system for generating high rate modulated signals. The system includes: a signal generator for generating a first periodic signal at a first rate; an optical chopping device arranged to receive the first periodic signal and to produce therefrom a second ... | 07/28/2009 |
| 7423564 | Optical signal processing device for A/D converter including optical encoders with nonlinear loop mirrors An optically sampling device optically samples an optical analog signal using a sampled signal having a predetermined sampling frequency, and outputs control light having a pulse train of an optically sampled optical analog signal. A signal generating device generat... | 09/09/2008 |
| 7403717 | Method and apparatus for first-order polarization mode dispersion compensation Method and apparatus for compensating for first-order Polarization Mode Dispersion in an optical transmission system. An apparatus has a polarization controller for transforming polarization components of an optical signal carried by the optical fiber into orthogona... | 07/22/2008 |
| 7375804 | Single detector receiver for multi-beam LADAR systems A LADAR apparatus and a method for use in receiving a LADAR signal are disclosed. The apparatus includes an optical pickup capable of picking up a plurality of optical signals; a timing synchronization reference; a time domain multiplexer capable of multiplexing the... | 05/20/2008 |
| 7373084 | Optical network termination device for use in passive optical network based on WDM/SCM scheme A termination device for use in a WDM-SCM PON system can effectively support a multi-channel integration function of a WDM/SCM PON system. The termination device contained in a termination end of a WDM/SCM (Wavelength Division Multiplexing/Sub-Carrier Multiplexing) ... | 05/13/2008 |
| 7366414 | Method and apparatus utilizing tunable differential group delay A method and apparatus for utilizing tunable differential group delay with at least a component of a fiber optic transmission system includes providing a tunable differential group delay system that is optically connected to a component of the fiber optic transmissi... | 04/29/2008 |
| 7362976 | Generating of high rate modulated pulse streams The present invention provides an all optical system for generating high rate modulated signals including: a generator for generating a first periodic signal at a first rate; an optical chopping device arranged to receive the first periodic signal for producing a se... | 04/22/2008 |
| 7340133 | Configurable dispersion compensation trimmer The invention pertains to optical fiber transmission systems, and is particularly relevant to transmission of large volumes of data over long distances at high rates. An improved apparatus achieving precise dispersion compensation in a fiber span is disclosed. In pa... | 03/04/2008 |
| 7333729 | Optical transmitter, optical receiver and optical transmission system using same To resolve problems, with the invention, an optical transmitter comprises an encoder for generating an optical signal obtained by encoding multi-wavelength pulses corresponding to sending data by use of a method of time spread/wavelength hopping in accordance with a... | 02/19/2008 |
| 7330661 | Method and apparatus for optical communication between devices A method and apparatus for processing a data signal for transmission to a remote device transmits at least two synchronized copies of the data signal, in optical form, in different directions. To that end, the data signal first is synchronized to a clock signal to p... | 02/12/2008 |
| 7330660 | Optical time division multiplexer A TDM comprising: (a) at least two wavelength-tunable devices for outputting a signal, each wavelength-tunable device being adapted to change signal wavelength in response to a change signal; (b) a plurality of on-off gates, one on-off gate being coupled to the outp... | 02/12/2008 |
| 7321731 | Optical pulse position modulation discriminator Systems and methods are disclosed herein to provide various optical techniques. For example, in accordance with an embodiment of the present invention, a pulse position modulation discriminator architecture is disclosed for discriminating temporal positions of PPM-e... | 01/22/2008 |
| 7292792 | High speed modulation of optical subcarriers A method for transmitting digital data includes splitting a coherent optical carrier having a subcarrier into mutually coherent optical carriers, producing corresponding sequences of phase shifts in each of the mutually coherent optical carriers, and then, interferi... | 11/06/2007 |
| 7292750 | Signal processing system A signal processing system (10) has a plurality of optical fibers (40, 42, 43) with their one ends (40) mounted in an array board (41) to receive electromagnetic radiation. A coupler (54) interconnects the other ends of the optical... | 11/06/2007 |
| 7277636 | Optical communication apparatus and methods using pulses having modified propagation speeds An improved apparatus and method for enhancing the performance of optical transmission and network systems (such as SONET or SDH). A magnetically trapped atomic cloud chamber is provided which selectively alters the group velocity of light waves propagating through ... | 10/02/2007 |
| 7272309 | System and method of routing data at a photonic core Embodiments of the present invention provide a system and method for routing optical data. In one embodiment of the present invention, data can routed in a non-blocking fashion from a plurality of the ingress edge units to a plurality of egress edge units by selecti... | 09/18/2007 |
| 7272324 | Equalization of optical signals Methods for performing time-domain equalization of an information signal represented by an optical signal are provided. A representative method includes: receiving the optical signal; optically splitting the optical signal into beams; optically delaying at least one... | 09/18/2007 |
| 7272271 | Electro-optical integrated transmitter chip for arbitrary quadrature modulation of optical signals An optical device includes, a first Mach-Zehnder modulator that produces a first output, and a second Mach-Zehnder modulator which produces a second output. A splitter couples the first and second Mach-Zehnder modulators. A combiner combines the first and second out... | 09/18/2007 |
| 7260329 | All optical time division multiplexer and packet switch using optical codewords and optically actuated optical switches Optical apparatus that uses optically-actuated optical switches in conjunction with an optical codeword addressing scheme to provide for time division multiplexing and demultiplexing of high data rate optical data. Optical codewords traveling simultaneously with the... | 08/21/2007 |
| 7251417 | Method and apparatus for optimization of dispersion-managed return-to-zero transmission by employing optical pulses having variable widths A method and apparatus for transmitting optical pulses in a dispersion-managed optical transmission system comprises determining the pulse width of optical pulses in a optical transmission channel in accordance with the path-average dispersion (PAD) experienced by t... | 07/31/2007 |
| 7251416 | Container based crossconnect Systems and methods for optical cross connects which switch data at a container (packet) level. In one embodiment, a plurality of optical switch edges are coupled to an optical switch core via a minimal number of optical fibers. The switch core is configured to opti... | 07/31/2007 |
| 7248800 | Optical receiver, optical transmitter and optical transceiver An optical receiver includes a first light receiving element to convert an optical signal to an electric signal and to output the electric signal from one end. A light receiving element row is connected to the other end of the first light receiving element to supply... | 07/24/2007 |
| 7233720 | Devices based on optical waveguides with adjustable Bragg gratings A system for filtering light propagating in a waveguide is described. The system utilizes an adjustable periodic grating which induces mode coupling of predetermined frequencies of light propagating in the waveguide. ... | 06/19/2007 |
| 7231109 | Ultrafast optical communications system with multiplexer and demultiplexer The electronic-to-optical multiplexer takes n electronic inputs Xi where i=0 to n−1; converts Xi into optical signals Yi each with a different wavelength; wavelength multiplexes Yi; samples Yi with an optical ... | 06/12/2007 |
| 7224506 | Single side band modulation device A single side band modulation device includes a first Mach Zehnder interferometer and a second Mach Zehnder interferometer. The first Mach Zehnder interferometer includes at least two output arms, and the second Mach Zehnder interferometer includes at least two outp... | 05/29/2007 |
| 7224902 | Optical encoding method and encoder for optical code division multiplexing A time-spreading and wavelength-hopping optical encoder spreads each pulse in a modulated optical pulse signal into a predetermined pulse train including pulses with different wavelengths. The last pulse in the pulse train is delayed from the first pulse in the puls... | 05/29/2007 |
| 7223962 | Digital optical signal transmission in a seismic sensor array The invention describes a sensor array with digital signals transmitted over an optical fiber for seismic exploration systems. The seismic system includes a transducer for providing digital optical data signals and an optical interrogator for collecting the digital ... | 05/29/2007 |
| 7218859 | System and method for an optical signal monitor Techniques and systems for monitoring of optical signals are described. Each of a plurality of optical signals is supplied to an optical port. A port signal is generated based on each of the optical signals and each of the port signals is subjected to a time delay t... | 05/15/2007 |
| 7209658 | Time division multiplex and wavelength division multiplex optical switching node The invention relates to a time division and wavelength division multiplex optical switching node for use in an optical communications network (2), which node combines a set of time division multiplex packets (8-1, 8-2, . . . , 8-i) into ... | 04/24/2007 |
| 7206509 | Method and apparatus for temporally shifting one or more packets using wavelength selective delays A method and apparatus are disclosed for temporally shifting one or more packets using wavelength selective delays. The header information associated with each packet, together with a routing algorithm, routing topology information and internal OPTR state, is used t... | 04/17/2007 |
| 7197054 | Methods and apparatus for conversion of one or more data streams A system, method, apparatus, means, and computer program code that facilitate conversion of a single data stream into two or more data streams (e.g., a down rate conversion) and for systems, means and that facilitate conversion of two or more input data streams into... | 03/27/2007 |
| 7184920 | Delay measurement system Performing delay measurement between master and slave devices. The master transmits a delay measuring signal at a fixed timing relative to a synchronous pattern signal in an overhead and transmits a frame signal in which an internal delay time, associated with a fra... | 02/27/2007 |
| 7177542 | Generator of optical data carrier signals with selectable carrier wavelengths The present invention concerns a generator (G1) for generating at least M data carrier optical signals with selectable carrier wavelengths, where M is an integer greater than 1, said generator comprising N laser sources (Si) with constant and diffe... | 02/13/2007 |
| 7174105 | All-optical time division multiplexing system An all-optical time division multiplexing system, comprising: first divider having first input and a first plurality of outputs for receiving input signals at the first input and directing the input signals to each of the outputs o... | 02/06/2007 |
| 7155086 | Optical signal processing device using optical gate In the disclosed optical signal processing device, the digital-to-analog conversion of the input optical signals is realized in an optical region, without converting the input optical signals into electric signals for the purpose of signal processing, by splitting i... | 12/26/2006 |
