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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 8184994 | Optical receiving circuit An optical receiving circuit receives and demodulates an optical signal subjected to phase modulation and wavelength division multiplexing. The optical receiving circuit includes an interfering unit that causes a reference signal to interfere with the optical signal... | 05/22/2012 |
| 7912381 | Transmission network having an optical receiver that utilizes dual power pins and a single status pin to lower power consumption, lower manufacturing cost, and increase transmission efficiency A communication network is provided for interconnecting a network of digital systems, such as multimedia devices. Each node of the communication network may include a receiver and a transmitter. The receiver and transmitter of each node can be an optical receiver an... | 03/22/2011 |
| 7529490 | Optical receiver and optical reception method compatible with differential quadrature phase shift keying In an optical receiver according to the present invention, an input signal light subjected to the differential quadrature phase shift keying (DQPSK) is incident on a PANDA type fiber in a linearly polarized state by 45°, so that a delay time difference correspondin... | 05/05/2009 |
| 7483642 | Receiver for OTDM/PDM optical signals A receiver for an OTDM/PDM pulse train (10) in which the pulses (12) have alternating polarizations (P1, P2) has a polarization insensitive optical switch (16; 161, 162, 163, 164) for isolating optical pulses (10′) within ... | 01/27/2009 |
| 7415213 | Optical receiver having transient compensation An optical receiver having compensation for signal level transients. The receiver includes an OE converter, a transient threshold compensator, a threshold combiner and a CDR system. The OE converter receives the incoming optical signal and provides a modulated elect... | 08/19/2008 |
| 7406269 | Feedback-controlled coherent optical receiver with electrical compensation/equalization An optical coherent receiver in one embodiment has a heterodyne configuration, and in another embodiment has a homodyne configuration, in each configuration employs multiple feedback signaling and analog/digital processing to optimize response to a modulated optical... | 07/29/2008 |
| 7376360 | Optical device for extracting a sideband signal from a composite signal including orthogonally modulated signals An optical device extracts an information bearing sideband such as an FSK or SCM signal (label) from a composite signal that includes the sideband and an orthogonally modulated signal such as an intensity modulated signal (payload) by employing polarization beam spl... | 05/20/2008 |
| 7373091 | Multicasting optical switch fabric and method of detection based on novel heterodyne receiver The inventors propose herein a switch fabric architecture that allows broadcasting and fast channel access in the ns-range. In various embodiments of the present invention, 10 Gb/s receiver modules are based on a novel heterodyne receiver and detection technique, wh... | 05/13/2008 |
| 7366428 | Optical receiver An optical receiver includes a light-receiving part and a control part. The light-receiving part includes an APD, a PIN-PD, and a branching optical device. First signal light is incident on the light-receiving part and is divided into second signal light and third s... | 04/29/2008 |
| 7342441 | Heterodyne receiver array using resonant structures An electronic receiver array for decoding data encoded into electromagnetic radiation (e.g., light) is described. The light is received at an ultra-small resonant structure. The resonant structure generates an electric field in response to the incident light and lig... | 03/11/2008 |
| 7340185 | Optical signal receiver with dual stage soft detection An optical receiver including a plurality of time delay elements and threshold decision elements configured to receive a signal representative of an optical signal. Each of the time delay elements is configured to impart an associated time delay to the signal. Each ... | 03/04/2008 |
| 7339678 | Method and system of using odd harmonics for phase generated carrier homodyne A method and system for providing fast interrogation of a signal received from a fiber optic sensor array using a low drive voltage, by modulating the array signal with a phase generated carrier optical signal having an odd harmonic modulation frequency, sending it ... | 03/04/2008 |
| 7302193 | Optical receiver An optical receiver includes a PIN photodiode (PIN-PD) having an incident surface for receiving signal light, the PIN-PD transmitting a part of the signal light to the surface opposite to the incident surface, and an avalanche photodiode (APD) having an incident sur... | 11/27/2007 |
| 7286767 | Optical transceiver over single communication link A method, apparatus, and system for optical communications. An optical transmit signal is generated in response to an electrical transmit signal. The optical transmit signal is coupled into a single communication link for transmission there over. An optical receive ... | 10/23/2007 |
| 7280770 | Polarization diverse optical receiver using a polarization-dependent beam splitter A receiver and method for using the same to process optical signals is disclosed. The receiver includes an optical coupler and a polarization dependent beam splitter. The optical coupler combines an input signal and a local oscillator signal into a first combined si... | 10/09/2007 |
| 7280769 | Method and apparatus for operating an optical receiver for low intensity optical communication in a high speed mode An optical communication probe enables a diagnostic tool to optically communicate with an external device, such as an appliance, through a low intensity indicator light of the external device. The communication probe includes an optical transmitter, an optical recei... | 10/09/2007 |
| 7274882 | Method and apparatus for monitoring the power level of two or more optical transmitters Methods and apparatus for monitoring the power level of one or more optical emitters are provided. In some embodiments, optical signals from two or more optical emitters are directed at different regions of a photo detector. The photo detector may include two or mor... | 09/25/2007 |
| 7269359 | Focal plane array with synchronous detection circuits for an active remote sensing system The invention provides a synchronous detector for a unit cell of a read out integrated circuit (ROIC). The synchronous detector includes a bipolar photo-detector formed in a focal plane array (FPA) for sensing light energy. The bipolar photo-detector has one end cou... | 09/11/2007 |
| 7266310 | Digital compensation for optical transmission system A receiver for an optical transmission system, has a polarization diverse and phase diverse coherent optical receiver, and a digital adaptive equalizer for compensating for distortions in the optical signal introduced by the optical path. The entire field of the opt... | 09/04/2007 |
| 7251418 | Signal receiver having light guide for guiding light transmitted from remote control A signal receiver which receives an optical signal from a remote control includes a light guide for guiding a light passing through a front panel window toward a photodetector mounted on a circuit board. The light guide is made of a homogeneous material. A light gui... | 07/31/2007 |
| 7245833 | Photonic channelized RF receiver employing dense wavelength division multiplexing A photonic channelized receiver includes: an optical source, an optical combiner, an electro-optical modulator, an etalon, a wavelength splitter, and a set of detectors. The optical source produces a set of optical signals at spaced wavelengths, and the optical comb... | 07/17/2007 |
| 7233739 | Optical bit stream reader system An all optical fiber bit stream reader system for examining the data contents of an optical fiber involving the conversion of a temporal timing signal into a spatially located signal is provided. The invention generally comprises generating and detecting a signal in... | 06/19/2007 |
| 7224910 | Direct attach optical receiver module and method of testing Optical receiver modules are used for receiving high-speed optical data signals. Unfortunately, these optical receiver modules are often tested for the first time after they are packaged in a housing. Thus significant costs are associated with those packaged devices... | 05/29/2007 |
| 7209660 | Optical communications using heterodyne detection An optical communications system includes a receiver subsystem with at least two heterodyne receivers. The receiver subsystem receives a composite optical signal having two or more subbands of information and corresponding tones. An optical splitter splits the compo... | 04/24/2007 |
| 7209671 | Multiple detector decision receiver An optical signal receiver including a plurality of threshold decision circuits configured to receive an electrical signal representative of the optical signal. Each of the threshold decision circuits is configured to sample the electrical signal and to provide an a... | 04/24/2007 |
| 7206522 | Dynamic measurement of and compensation for impairments to optical data communication pulses A photomultiplier module (PMT), preferably a PMT with a gallium arsenide (GaAs) photocathode, is used as a N-photon detector (N is an integer ≧2). The PMT detects the N-photon absorption rate of an optical signal having a wavelength range extending from 1.0 μm to... | 04/17/2007 |
| 7142785 | Light branching/inserting apparatus and light branching apparatus using wavelength selection filter A light branching/inserting apparatus which can easily control light signal wavelengths, and which can branch, insert or transmit light signals having an optional wavelength and optional multiplexed number, by using a wavelength selection filter utilizing acousto-op... | 11/28/2006 |
| 7139476 | Distributed fiber sensor with detection and signal processing using polarization state management Polarization effects are managed to provide differential timing information for localizing disturbances affecting two or more counter-propagating light signals on one or more optical waveguides passing through a detection zone. Activity can be localized to a point f... | 11/21/2006 |
| 7127183 | Output monitor/control apparatus and optical communication system The output monitor/control device is provided with: Mach-Zehnder circuit 104 that receives a light beam, branches the light beam into two light beams having a phase difference of 180°, and transmits each of the light beams, exhibiting a periodic optical tran... | 10/24/2006 |
| 7123788 | Apparatus for monitoring optical frequencies of WDM signals The present invention relates to a wavelength division multiplexed (WDM) apparatus for monitoring optical frequencies, allowing optical channel frequency monitoring using the crossover property of an arrayed-waveguide grating and pilot tones that are in wide use in ... | 10/17/2006 |
| 7092344 | Apparatus for creating a multi-dimensional data signal An optical disk drive (101) is disclosed which has essentially no seek time. The drive utilizes a Virtual Head (VH) (103) which is capable of accessing any and/or all tracks in an optical disk (111) at any time. The drive utilizes a procedure by... | 08/15/2006 |
| 7042629 | Linear optical sampling method and apparatus A linear optical sampling apparatus, temporally samples a modulated optical signal using the amplitude of the interference of its electric field with the electric field of a laser pulse. The apparatus includes a 90° optical hybrid that combines the optical signal a... | 05/09/2006 |
| 6980747 | Optically amplified receiver An integrated, optically amplified receiver includes an optically pumped optical preamplifier for receiving, generally, wavelength division multiplexed optical communication signal over an optical communications line. A PIN photodetector receives the optical communi... | 12/27/2005 |
| 6934478 | Bidirectional optical communication device and bidirectional optical communication apparatus A bidirectional optical communication device satisfies a condition of θfb≦0≦θfa or θfa≦0≦θfb when θfa and θfb are angles of inclination between an optical axis of an optical fiber and tr... | 08/23/2005 |
| 6920290 | Multi-wavelength high bandwidth communication receiver and system An array of diffraction grating coupled infrared photodetectors is coupled to corresponding high-speed amplifiers for creating a multiple channel high speed receiver for an optical communication system. Each photodetector includes a three-dimensional diffractive res... | 07/19/2005 |
| 6867904 | Integrated optical circuit for effecting stable injection locking of laser diode pairs used for microwave signal synthesis An apparatus containing an integrated optical circuit that enhances phase stability of the injection-locking process of two slave lasers. The integrated optical circuit helps to reduce phase noise by keeping environmental or mechanical perturbations uniform everywhe... | 03/15/2005 |
| 6785477 | Optical receiver using variable negative-capacitance circuit A large time constant is caused due to parasitic capacitance at an anode terminal of a photodetector of an optical receiver. Therefore, an optical receiver wherein a variable negative capacitor mainly including an NPN-type transistor operable at high speed is config... | 08/31/2004 |
| 6782211 | Cross polarization interface canceler Implemented in both coherent and non-coherent optical systems, a receiving device including a cross polarization interference canceler (XPIC) is described. For these embodiments, the XPIC optimizes bandwidth efficiency of an optical communication link by enabling th... | 08/24/2004 |
| 6751422 | Spatial light communication equipment comprising angle error detection and alignment units A spatial light communication equipment being capable of providing compatibility between two communication equipments placed opposite to each other and of providing, with simplified configurations, highly accurate seizure and tracking capability and excellent beam d... | 06/15/2004 |
| 6731883 | System and method for demultiplexing in optical communication systems A demultiplexer and method for a high speed time division multiplex optical communication system uses an opto-electronic device in which two photon absorption can occur configured in circuit. The received optical multi-channel signal and a control optical signal at ... | 05/04/2004 |
