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User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 8355636 | PMD insensitive direct-detection optical OFDM systems using self-polarization diversity A self-polarization diversity technique to combat PMD in a direct-detection optical OFDM system. This technique does not require any dynamic polarization control, and can simultaneous compensate PMD in a WDM system with one device. Simulation results show that this ... | 01/15/2013 |
| 8331802 | Synchronous circuit for use in optical homodyne receiver for generating local oscillation light with accurate demodulation In a synchronous circuit, a synchronizing signal generator combines either an optical BPSK signal or local oscillation light with a phase-shifted signal to produce different optical signals, one of which for use in producing a signal demodulated from the BPSK signal... | 12/11/2012 |
| 8180227 | Digital coherent detection of multi-carrier optical signal Embodiments for optical communication are provided in which subbands of a multi-carrier optical signal are digital coherent detected and then processed to recover data carried by the modulated carriers corresponding to at least one of the subbands. An exemplary opti... | 05/15/2012 |
| 8081885 | Coherent optical communication apparatus and method The present invention relates to a coherent optical communication apparatus and method. According to the invention, the optical communication apparatus receives a modulated optical signal, which is generated by modulating an optical signal with a first electrical si... | 12/20/2011 |
| 8073344 | Heterodyne receiver using differential temperature control of laser sources A heterodyne receiver includes first and second laser sources such as laser diodes which generate optical receiver oscillator (RO) signals having respective RO frequencies. Temperature control circuitry controls a temperature difference between the operating tempera... | 12/06/2011 |
| 8005372 | Differential M phase shift keying optical receiving circuit The present invention is a differential M phase shift keying optical receiving circuit to improve an identification property of a signal from an optical front-end unit having a plurality of lines. For this, the differential M phase shift keying optical receiving cir... | 08/23/2011 |
| 7945174 | Secure optical communications system and method with coherent detection The invention provides a system and method for secure communication that involves encoding and transmitting an optical communications signal that is encoded based on a multi-dimensional encoding technique. This technique may include at least one or more of encoding ... | 05/17/2011 |
| 7941059 | Down conversion for distortion free recovery of a phase modulated optical signal In one embodiment, a down conversion receiver is provided for a phase modulated optical signal. This may include an optical coupler coupled to be capable of receiving a phase modulated signal and a local oscillator signal, and a modulator coupled to an input of the ... | 05/10/2011 |
| 7853157 | Systems and methods for the polarization insensitive coherent detection and the polarization division multiplexed transmission of optical communication signals The present invention relates generally to the transport and processing of optical communication signals. More specifically, the present invention relates to systems and methods for the polarization insensitive coherent detection of optical communication signals wit... | 12/14/2010 |
| 7853156 | Systems and methods for the coherent non-differential detection of optical communication signals In various exemplary embodiments, the present invention provides coherent non-differential detection systems and methods for the detection of optical communication signals by the Brillouin fiber amplification of an optical communication signal carrier, the coherent ... | 12/14/2010 |
| 7840143 | Method and apparatus for demodulating an optical differential phase-shift keying signal Demodulating an optical Differential Phase-Shift Keying (DPSK) signal is accomplished using a self-homodyne receiver for receiving the optical signal. A converter converts the optical signal received by the self-homodyne receiver into a representative electrical sig... | 11/23/2010 |
| 7577370 | Method and apparatus for extracting optical clock signal An apparatus and method for extracting an optical clock signal are provided. The apparatus includes a first reflection filter selecting and reflecting only a first frequency component in an input optical signal; a first Fabry-Perot laser diode matching the first fre... | 08/18/2009 |
| 7480465 | Receiver for a differential phase modulated signal The receiver features a first splitter which divides a differential phase modulated signal into three signal components from which at least two signal components are routed via timers. The first timer has a delay of a half period of the carrier signal and thereby se... | 01/20/2009 |
| 7444085 | DQPSK optical receiver circuit A DQPSK optical signal is split by the splitter 1 into Data 1 and Data 2 systems. For each system, a phase-modulated optical signal is converted into an intensity modulated electric signal, and clock reproduction and data reproduction are indepe... | 10/28/2008 |
| 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 |
| 7330657 | Method to demultiplex wavelengths of light An apparatus and method for demultiplexing multiple wavelengths of light. In one embodiment, an optical signal having a plurality of wavelengths is provided to an optical-to-electrical (OE) circuit configured to convert optical signals into electrical signals. The o... | 02/12/2008 |
| 7305091 | Quantum cipher communication system A quantum cipher communication system includes a sender's apparatus, a recipient's apparatus and a transmission path. The sender's apparatus includes a beam splitting for splitting a laser beam into a weak signal light and an intense reference light, a phase modulat... | 12/04/2007 |
| 7265837 | Sensitive polarization monitoring and controlling Techniques and devices for monitoring polarization of light using at least two polarization elements where the difference between the outputs of the two polarization elements are used to monitor a change in polarization. ... | 09/04/2007 |
| 7224750 | Apparatus and method for receiving RF signal free of 1/f noise in radio communication system An apparatus and method for receiving RF signals in a RF communication system are provided. The apparatus for receiving RF signals comprises a pre-processing unit for bandpass-filtering a signal received through an external antenna with a predetermined bandwidth and... | 05/29/2007 |
| 7218862 | All optical cross routing using decoding systems for optical encoded data symbols The present invention provides an optical system for decoding, switching, demultiplexing, and routing of optical encoded data symbols from multiple inputs to multiple outputs, including: a plurality of demultiplexing systems, each of the demultiplexing systems inclu... | 05/15/2007 |
| 7209664 | Frequency agile transmitter and receiver architecture for DWDM systems A frequency-agile optical transceiver includes a shared local oscillator (LO), a coherent optical receiver and an optical transmitter. The LO operates to generate a respective LO optical signal having a predetermined LO wavelength. The coherent optical receiver is o... | 04/24/2007 |
| 7200338 | Method and system for communicating a clock signal over an optical link A method and system for communicating a clock signal over an optical link includes receiving a multimodulated optical information signal including non-intensity modulation for a data signal and intensity modulation for a clock signal. The clock signal is recovered b... | 04/03/2007 |
| 7200344 | Receiver and method for a multichannel optical communication system A method and system for transmitting information in a wavelength division multiplex (WDM) or other suitable multichannel optical communication system includes receiving a multichannel signal having a symbol rate and comprising a plurality of non-intensity modulated ... | 04/03/2007 |
| 7171129 | Optical communication system using coherence multiplexing in an optical DWDM network The present invention comprises an optical communication system, including apparatuses and methods, which use coherence multiplexing to optically multiplex different signals that may have varying protocols or operate at different speeds, onto a single wavelength cha... | 01/30/2007 |
| 7099588 | Laser modulation control to improve system dynamic range The present invention provides several embodiments of a video carrier signal detection circuit included in an optical transmitter for either disabling an oscillator that provides dithering tones or attenuating the power level of the dither tones. A first detection c... | 08/29/2006 |
| 7082268 | Method and system for 80 and 160 gigabit-per-second QRZ transmission in 100 GHz optical bandwidth with enhanced receiver performance Optical transmitter/receivers for use in a DWDM systems are provided. Transmission of data signals in a quadrature-return-to-zero (QRZ) format achieves a data transmission rate equal to eight times a base data rate, i.e., 80 Gbps over a 100 GHz channel if the base d... | 07/25/2006 |
| 7062178 | Photodetector array and optical branching filter using the array A light demultiplexer in which a signal and a noise in each channel may be distinctly separated is provided. The light demultiplexer comprises a light-receiving element array for receiving light beams demultiplexed every wavelength from a wavelength multiplexed ligh... | 06/13/2006 |
| 6963696 | AC-coupled burst mode receiver with wide dynamic range An apparatus and method is disclosed for receiving packets having a wide dynamic range of power levels over a shared medium in a communications system. The receiver responds to a packet with a different power level within an inter-packet time and maintains a constan... | 11/08/2005 |
| 6911645 | DWDM channel detection system A channel detection system includes an interferometer coupled to a spectrum analyzer to differentiate additive spontaneous emission (ASE) noise from optical channels in a dense wave-division multiplex (DWDM) signal. It is assumed that channels, if present, are cente... | 06/28/2005 |
| 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 |
| 6760551 | Adaptive decoder for skin effect limited signals The present invention is a decoder for decoding a signal. The decoder includes a discriminator and a threshold generator. The discriminator receives the signal and generates an output voltage equal to a first voltage if the signal is less than a threshold level that... | 07/06/2004 |
| 6684032 | Optical signal receiver apparatus An optical signal receiver apparatus is comprised of a photodiode for converting an input photo-signal into a photoelectric current and an integrated circuit having a transimpedance amplifier for converting the photoelectric current into a voltage signal ... | 01/27/2004 |
| 5991062 | Method and device for obtaining error signals for spatial beam regulation of an optical coherent receiver In connection with a method and a device for the control of the optical alignment of two lightwaves in the course of a coherent superimposed reception a spatial beam regulation is achieved in that the light of a local laser (5) is superimposed on the rece... | 11/23/1999 |
| 5978121 | Method and device for the optical transmission of data over distances in space The instant invention relates to a method and a device and its opto-mechanical structure for the optical transmission of data over free space distances, using the principle of phase modulation of a lightwave generated by a laser and by a homodyne superimp... | 11/02/1999 |
| 5477369 | Device for optical heterodyne or homodyne detection of an optical signal beam and receiver provided with such a device A device for optical heterodyne detection is described, using only two adjustable elements influencing the state of polarisation and having a limited control range (51, 52) in order to realize an endless polarisation control. In a first embodiment a tempo... | 12/19/1995 |
| 5367397 | Wavelength-stabilizing method and its associated circuitry for an optical communication system A wavelength-stabilizing method for use with an optical communication system capable of transmitting and receiving information by means of signal light between a pair of stations each having a coherent optical transmitter and a coherent optical receiver. ... | 11/22/1994 |
| 5355243 | Direct detecting of optical PSK signals A self homodyne direct detection optical transmission system includes a transmitter in which binary data signals are converted into double differential phase shift keyed (DDPSK) optical signals. The receiver includes a two-path optical interferometer, hav... | 10/11/1994 |
| 5323258 | Homodyne optical receiver equipment A homodyne optical receiver includes a polarization beam splitter for dividing an optical signal into an optical signal with horizontal polarization and an optical signal with vertical polarization. Optical couplers combine two optical signals of the two ... | 06/21/1994 |
