|| List of recent Modulation-related patents
| Transmitting apparatus, receiving apparatus, transmission method, and reception method|
A transmission frame generating device includes a control information signal generator and a frame former. The control information signal generator generates a modulation method information signal indicating a modulation method of a data signal and an error correction method information signal indicating an error correction method of the data signal.
Panasonic Intellectual Property Corporation Of America
| System and gyroscope zero-rate-offset drift reduction through demodulation phase error correction|
A circuit for processing signals from a gyroscope includes a first that generates an in-phase demodulated signal and a second demodulator that generates a quadrature-phase demodulated signal with reference to in-phase and quadrature-phase modulated signals, respectively, from the gyroscope. The circuit includes a digital processor that receives the demodulated in-phase and quadrature phase signals from the demodulators and generates an output signal corresponding to a rotation of the gyroscope along a predetermined axis with reference to the in-phase demodulated signal and the quadrature-phase demodulated signal to remove a portion of the quadrature-phase signal from the in-phase signal..
Robert Bosch Gmbh
| Flexible circuit having improved adhesion to a renal nerve modulation balloon|
A balloon for renal nerve modulation is disclosed. The balloon may include a polymer material forming a balloon wall having an outer surface and flexible circuits comprising a base selectively adhered to the exterior surface of the balloon wall.
Boston Scientific Scimed, Inc.
| Catheter apparatuses, systems, and methods for renal neuromodulation|
Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present application, for example, is directed to apparatuses, systems, and methods that incorporate a catheter treatment device comprising an elongated shaft.
Medtronic Ardian Luxembourg S.a.r.l.
| Use of inhibitors of zdhhc2 activity for modulation of adipogenesis|
The present invention concerns zdhhc2, a new target involved in adipogenesis modulation. Using a sirna approach, the inventors demonstrated that decrease in zdhhc2 activity in adipose tissue induces a decrease in adipogenesis.
| Modulators of hec1 activity and methods therefor|
Compounds, compositions, and methods for modulation of hec1/nek2 interaction are provided. Especially preferred compounds disrupt nek2/hec1 binding and are therefore useful as chemotherapeutic agent for neoplastic diseases..
Taivex Therapeutics, Inc.
| Compositions and methods for the modulation of specific amidases for n-acylethanolamines for use in the therapy of inflammatory diseases|
The present invention regards compositions and methods for the modulation of amidases capable of hydrolysing n-acylethanolamines useable in the therapy of inflammatory diseases. In particular, the present invention regards a compound of general formula (i): enantiomers, diastereoisomers, racemes and mixtures, polymorphs, salts, solvates thereof, wherein: (a) r is a linear alkyl radical having 13 to 19 carbon atoms or alkenyl radical having 13 to 19 carbon atoms carrying a double bond; (b) x is 0 or s; (c) y is a 2 or 3 carbon atom alkylene residue, optionally substituted with one or two groups equal or different from each other and selected from among the group consisting of: —ch3, —ch2oh, —cooch3, —cooh.
Epitech Group S.r.l.
| 4-pregenen-11beta-17-21-triol-3,20-dione derivatives|
The present invention relates to novel 4-pregenen-11β-17-21-triol-3,20-dione derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals, as modulators of glucocorticoid or mineralocorticoid receptors. The invention relates specifically to the use of these compounds and their pharmaceutical compositions to treat disorders associated with glucocorticoid or mineralocorticoid receptor modulation..
| Compounds and uses thereof for the modulation of hemoglobin|
Provide herein are compounds and pharmaceutical compositions suitable as modulators of hemoglobin, methods and intermediates for their preparation, and methods for their use in treating disorders mediated by hemoglobin and disorders that would benefit from tissue and/or cellular oxygenation.. .
Global Blood Therapeutics, Inc.
| Hepatic neuromodulation using fluids or chemical agents|
According to some embodiments, a method of treating a subject having diabetes or symptoms associated with diabetes is provided. The method includes delivering a neuromodulation catheter within a vessel (e.g., hepatic artery) having surrounding nerves that innervate the liver (e.g., sympathetic nerves of the hepatic plexus).
Apparatus for providing transient thermal profile processing on a moving substrate
A method and apparatus for thermally processing material on a low-temperature substrate using pulsed light from a flash lamp is disclosed. Material is conveyed past the flash lamp.
Ncc Nano, Llc
A communication system performs communication using a pulse width modulation code as a transmission code. The communication system includes a plurality of nodes that are connected via a transmission line to be capable of communicating with each other.
Adaptive modal pam2/pam4 in-phase (i) quadrature (q) phase detector for a receiver
A phase detector includes data detection logic for detecting data in a communication signal, amplitude detection logic for processing modulation chosen from any of a pam2 and a pam4 communication modality, in-phase edge detection logic for detecting in-phase edge information in the communication signal, quadrature edge detection logic for detecting quadrature edge information in the communication signal, and mixing logic for determining an amount of in-phase edge information and quadrature edge information to be applied based on at least one channel parameter in the communication channel.. .
Avago Technologies General Ip ( Singapore) Pte. Ltd.
Base station and primary and secondary synchronization signal transmission in new carriers
A method for transmitting primary synchronization signals and secondary synchronization signals in new carriers is provided, which includes: with respect to a time domain, a base station side sending primary synchronization signals (pss) and secondary synchronization signals (sss) in orthogonal frequency division multiplexing (ofdm) symbols except ofdm symbols occupied by reference signals in subframes #1 and #6, or subframes #0 and #5, or subframes #1, #6, #0 and #5; and with respect to a frequency domain, the base station side sending the pss or sss in resources of intermediate 6 physical resource block (prb) pairs of system bandwidth; the reference signals include demodulation reference signals (dmrs).. .
Radio transmission apparatus, and radio transmission method
Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an scch and an sdch thereby to satisfy the required quality of a papr. In this device, an mcs selection unit (111) of a transmission unit (110) decides, with reference to a cqi lookup table, an mcs pattern (mcs1) of the sdch, an mcs pattern (mcs2) of the scch and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the cqi information.
Panasonic Intellectual Property Corporation Of America
Method and performing harq in a wireless communication system
The present invention provides a method and apparatus for performing hybrid automatic repeat request (harq) in a wireless communication system. A terminal transmits a plurality of code words on a physical uplink shared channel (pusch) and receives a plurality of acknowledgement/non-acknowledgement (ack/nack) signals, which indicates if each of the plurality of code words has been received, on each physical hybrid-arq indicator channel (phich) corresponding to the respective code words.
Lg Electronics Inc.
Neutral host architecture for a distributed antenna system
A remote radio head unit (rru) system for achieving high data rate communications in a distributed antenna system is disclosed. The distributed antenna system is configured as a neutral host enabling multiple operators to exist on one das system.
Dali Systems Co. Ltd.
Transmit diversity on a control channel without additional reference signals
Disclosed is a method and an apparatus providing antenna port sharing and a demodulation reference signals (dmrs) based precoding scheme for a distributed enhanced physical downlink control channel (e-pdcch) using, for example, spatial frequency block codes (sfbc)/frequency selective transmit diversity (fstd) transmit diversity. The method exhibits the same performance as sfbc/fstd transmit diversity using un-precoded dmrs while not prohibiting another ues' localized e-pdcch to be potentially multiplexed in a same physical resource block (prb) pair.
Method and transmitting reference signal
Disclosed are a method and an apparatus for transmitting a reference signal. The method for transmitting the reference signal comprises the step of: transmitting a secondary synchronization signal (sss) and a primary synchronization signal (pss) from a subframe including an n (natural number wherein n>1) number of resource blocks (rb) and a plurality of orthogonal frequency division multiplexing (ofdm) symbols; and transmitting from the subframe the reference signal which is generated on the basis of a cell identifier, wherein the reference signal can be transmitted from an m (natural number wherein k<=m<n) number of rbs which includes a k number of rbs in the ofdm symbols that remain after excluding the ofdm symbols from which the sss and the pss are transmitted.
Lg Electronics Inc.
Systems, methods, and devices for electronic spectrum management
Systems, methods, and devices enable spectrum management by identifying, classifying, and cataloging signals of interest based on radio frequency measurements. In an embodiment, signals and the parameters of the signals may be identified and indications of available frequencies may be presented to a user.
Dgs Global Systems, Inc.
Constant voltage constant current controller and control method thereof
The present invention relates to a constant voltage constant current (cvcc) controller, and associated control methods. In one embodiment, a cvcc controller for a flyback converter can include: (i) a current controller configured to generate an error signal by comparing an output current feedback signal against a reference current; (ii) a voltage controller configured to receive an output voltage feedback signal and a reference voltage, and to generate a control signal; (iii) a selector configured to control the flyback converter to operate in a first or a second operation mode based on the control signal, and to further generate a constant voltage or a constant current control signal based on the error signal; and (iv) a pulse-width modulation (pwm) controller configured to generate a pwm control signal to control a main switch, and to maintain the output voltage and/or current of the flyback converter as substantially constant..
Silergy Semiconductor Technology (hangzhou) Ltd
Systems and methods for flyback power converters with switching frequency and peak current adjustments based on changes in feedback signals
System and method for regulating a power converter. The system includes a first comparator configured to receive a first input signal and a second input signal and generate a first comparison signal based on at least information associated with the first input signal and the second input signal, a pulse-width-modulation generator configured to receive at least the first comparison signal and generate a modulation signal based on at least information associated with the first comparison signal, a driver component configured to receive the modulation signal and output a drive signal to a switch to adjust a primary current flowing through a primary winding of the power converter, and a voltage-change-rate detection component configured to sample the feedback signal to generate a first sampled signal for a first modulation period and to sample the feedback signal to generate a second sampled signal for a second modulation period..
On-bright Electronics (shanghai) Co., Ltd.
Differential filtering chromatic confocal microscopic system
A differential filtering chromatic confocal microscopic system comprises a chromatic dispersion objective for receiving and axially dispersing a broadband light from a light source and projecting dispersed lights onto an object thereby forming an object light reflected therefrom; an optical modulation module for dividing the object light into a first and a second object lights; a pair of optical intensity sensing module, respectively having a spatial filter with a different pinhole diameter or a slit width from each other, for detecting the first and second object lights, thereby obtaining a plurality of first and second optical intensity signals; and a signal processor for respectively processing the plurality of first and second optical intensity signals thereby obtaining a plurality of differential rational values of optical intensity and determining a corresponding object depth associated with each differential rational value according to a relation between signal intensity ratio and object surface depth.. .
National Taiwan University
Communication apparatus, control method thereof and storage medium
There is provided a technique of, in a communication apparatus capable of executing facsimile communication by a deemed voice scheme, enabling generation of a communication error to be prevented regardless of a voice encoding scheme used to encode a facsimile signal. To achieve this, a communication apparatus (first fax apparatus) establishes a voice signal transmission session with the second fax apparatus serving as a partner apparatus in fax communication for fax communication by the deemed voice scheme.
Canon Kabushiki Kaisha
Light-emitting device and camera
A light-emitting device that can switch between two modes: single light emission and intermittent light emission is provided. The light-emitting device includes a driver circuit that can supply a control pulse signal, a constant current power supply that is supplied with the control pulse signal and can supply a constant current pulse, and a light-emitting panel that is supplied with the constant current pulse.
Semiconductor Energy Laboratory Co., Ltd.
Discharge lamp driving device, projector, and driving a discharge lamp
A discharge lamp driving device includes: a direct-current power supply section (a power supply section) that controls a current of power to be supplied to a discharge lamp from input power, and outputs the current; a voltage detecting section that detects a lamp voltage (a drive voltage) of the discharge lamp; and a control section that controls a modulation factor of a lamp current (a drive current) on which amplitude modulation has been performed, the lamp current (the drive current) which is supplied to the discharge lamp from the direct-current power supply section (the power supply section), in accordance with the detected lamp voltage (drive voltage) of the discharge lamp.. .
Seiko Epson Corporation
Macular pigment measurement device with data quality indexing feature
A system measures macular pigment of a macula of a human eye of a subject. The system comprises a light source having a first light and a second light that modulate at variable frequencies, an input device for receiving an input indicating the frequency at which the user perceives the modulation of the first light and a second light, a display device, at least one processor, and one or more memory devices.
Illumination unit and display unit
Provided is an edge light illumination device, in which a light modulation layer includes: a first region having optical anisotropy and a relatively high responsiveness to an electrical field; and a second region having optical anisotropy and a relatively low responsiveness to the electrical field. When denoting dispersal, the light modulation layer satisfies the formulae a>b>c and a1/c1<a2/c2..
Electro-optical devices using dynamic reconfiguration of effective electrode structures
Variable liquid crystal devices for controlling the propagation of light through a liquid crystal layer use a frequency dependent material to dynamically reconfigure effective electrode structures in the device. The drive signal source uses pulse-width modulation to set a frequency and an amplitude of the drive signal..
Liquid discharging apparatus, control method thereof, and program
There is provided a liquid discharging apparatus including: an original drive signal generation unit which generates an original drive signal; a signal modulation unit which modulates the original drive signal to generate a modulation signal; a first signal amplifying unit which amplifies the modulation signal to generate a first amplified modulation signal; a second signal amplifying unit which amplifies the modulation signal to generate a second amplified modulation signal; an amplification control unit which controls operations of the first signal amplifying unit and the second signal amplifying unit; a signal conversion unit which converts the first amplified modulation signal and the second amplified modulation signal into a drive signal; a plurality of piezoelectric elements which is deformed by the drive signal; a plurality of cavities which expands or contracts in accordance with the deformation of the plurality of piezoelectric elements; a plurality of nozzles which communicates with each of cavities.. .
Seiko Epson Corporation
Driving circuit and driving light emitting diode and display apparatus using the same
The present invention provides a driving circuit and a driving method for light-emitting diodes (leds), and a display apparatus using the same. The driving circuit comprises a power switch and a dimmer circuit.
Shenzhen China Star Optoelectronics Technology Co., Ltd.
Methods and systems for determining a range rate for a backscatter transponder
Methods for determining a range rate of a backscatter transponder and readers implementing the methods are described. The reader transmits a continuous wave signal and receives a modulated reflected response signal from the transponder, mixes the modulated reflected response signal with the carrier frequency to produce a downconverted signal, bandpass filters the downconverted signal to pass a bandpass filtered signal containing at least the modulation frequency, applies a non-linear amplitude transfer function to produce a modulation-suppressed signal, and measures the frequency of the modulation-suppressed signal and determines the range rate from the measured frequency..
Kapsch Trafficcom Ag
Card detection and selection
Techniques for csc detection and selection include generating a radio frequency (rf) field that defines a range of communication for the csc reader, transmitting a signal in the rf field, and detecting a modulation in the rf field indicating that a first csc is within the rf field and has responded to the signal. The modulation is inspected for collision, wherein collision occurs if more than one csc within the rf field responds to the poll signal.
Pulse width modulation circuit and voltage-feedback class-d amplifier circuit
The frequency characteristic of a voltage-feedback class-d amplifier circuit for driving an output load is improved. A triangular-wave correction circuit which compensates a gradient of a triangular wave is provided to a triangular-wave signal generator which supplies a triangular wave signal used as a pwm carrier to a comparison circuit for performing pwm modulation of an input signal.
Renesas Electronics Corporation
Optically pumped magnetometer and measuring magnetic force
An optically pumped magnetometer includes: a modulation unit which allows rectangular wave modulation to an angle of a polarization plane of probe light; a detector for detecting a change of the angle of the polarization plane of the probe light transmitted through a cell; and a differential circuit for obtaining a difference in light intensity between components separated by a polarization splitter. Thus, both a reduction of a light intensity noise of the probe light and a separation and reduction of a noise defined by an inverse of a frequency in a low frequency area can be achieved..
Canon Kabushiki Kaisha
Method and circuit arrangement for limiting peak currents and the slope of the current edges
A method for limiting peak currents, particularly depending on a charge quantity provided by a voltage source, and the maximum pitch of the current flanks of an electric motor for an electrohydraulic motor vehicle brake system, particularly a pump motor, controlled by pulse width modulation, wherein a change to an actual duty cycle of the pwm is made by a first duty cycle of the pwm on a second duty cycle at runtime, wherein the change takes place according to a positive or negative pitch value calculated and/or changeable at runtime. The invention further describes an electronic circuit arrangement for the implementation of a method for limiting peak currents and the maximum pitch of current flanks..
Continental Teves Ag & Co. Ohg
Torque optimization for surgical instruments
A control system having speed management control. The control system can be in signal communication with a battery, and the battery can be coupled to a motor.
Ethicon Endo-surgery, Inc.
Furnace with modulating firing rate adaptation
A furnace is disclosed that includes a burner with a firing rate that is variable between a minimum and a maximum firing rate. After a call for heat is received, the firing rate is set to an initial level above the minimum firing rate, and the burner is ignited.
Honeywell International Inc.
Pulse width modulation for control of late lean liquid injection velocity
Systems and methods for pulse-width modulation of late lean liquid injection velocity can be provided by certain embodiments of the disclosure. In one embodiment, a gas turbine combustor utilizing a late lean injection scheme can be provided, wherein the combustor can include a combustor liner and a transition piece.
General Electric Company
R-ccap with am star architecture
A remote node system with an amplitude modulation (am) star architecture is formed between a remote node and a plurality of field nodes split from the remote ccap node. In embodiments, an r-ccap node can be combined with amplitude modulation (am) optics in a star architecture for building low power nodes, supporting set top box (stb) out of band (oob) signals, and increasing system bandwidth (bw).
Arris Enterprises, Inc.
Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods
Selective high-frequency spinal chord modulation for inhibiting pain with reduced side affects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 khz to about 50 khz may be applied to the patient's spinal chord region to address low back pain without creating unwanted sensory and/or motor side affects.
Transcranial stimulation device and method based on electrophysiological testing
The present method and system provides for the clinical application of neurostimulation and/or neuromodulation to a patient. The method and system includes receipt and acquisition of patient data, processing of that data relative to one or more known data sets, and determination of a good-fit trigger specific treatment protocol.
Evoke Neuroscience, Inc.
Devices and methods for denervation of the nerves surrounding the pulmonary veins for treatment of atrial fibrillation
Methods, systems, and devices for providing a denervating energy treatment to the tissue of the pulmonary vein and antrum region of the left atrium utilizing a catheter-based structure having one or more energy delivery surfaces. In some instances energy delivery surfaces are arranged with a circumferential and axial offset relative to one another.
Ovarian neuromodulation and associated systems and methods
Methods for treating polycystic ovary syndrome with therapeutic ovarian neuromodulation and associated systems and methods are disclosed herein. Polycystic ovary syndrome can be associated, for example, with a condition including at least one of oligo/amenorrhea, infertility, hirsutism, obesity, metabolic syndrome, insulin resistance, and increased cardiovascular risk profile.
Medtronic Ardian Luxembourg S.a.r.l.
Device for measuring impedance of biologic tissues including an alternating current (ac) coupled voltage-to-current converter
A device for measuring impedance of biological tissue may include electrodes and a voltage-to-current converter coupled to the electrodes to drive an alternating current (ac) through the tissue and sense an ac voltage. The converter may include an amplifier having first and second inputs and an output, a first voltage divider coupled to the first input, a second voltage divider coupled to the second input, a filter capacitor coupled between the output and the second voltage divider, a current limiting resistor coupled between the second input the second voltage divider, and a bypass capacitor coupled to the second input of the amplifier and in parallel with the resistor.
Selective antisense compounds and uses thereof
Disclosed are oligomeric compounds which are useful for hybridizing to a complementary nucleic acid, including but not limited, to nucleic acids in a cell. The hybridization results in modulation of the amount activity or expression of the target nucleic acid in a cell..
Isis Pharmaceuticals, Inc.
Nmda receptor modulators and uses thereof
Disclosed are compounds having enhanced potency in the modulation of nmda receptor activity. Such compounds are contemplated for use in the treatment of diseases and disorders, such as learning, cognitive activities, and analgesia, particularly in alleviating and/or reducing neuropathic pain.
Selective differentiation, identification, and modulation of human th17 cells
The embodiments provide for the modulation of both the differentiation and activity of human th17 cells. More specifically, human th17 cell differentiation can modulated by tgf-β and il-21, and their agonists and antagonists.
The Brigham And Women's Hospital, Inc.
Method and thermally debindering a cellular ceramic green body
An apparatus and method for debindering a cellular ceramic green body. The apparatus includes a flow modulation member to selectively restrict circulation of a heated oxygen-containing atmosphere through a top of a cellular core section of the green body.
Compositions and methods for treating insulin resistance and diabetes mellitus
Provided are electrokinetically-altered fluids (gas-enriched electrokinetic fluids) comprising an ionic aqueous solution of charge-stabilized oxygen-containing nanostructures in an amount sufficient to provide modulation of at least one of cellular membrane potential and cellular membrane conductivity, and therapeutic compositions and methods for use in treating diabetes and diabetes-associated conditions or disorders (e.g., insulin resistance), or symptoms thereof. Provided are electrokinetically-altered ioinic aqueous fluids optionally in combination with other therapeutic agents.
Methods of wound care and treatment
Provided are electrokinetically-altered fluids (e.g., gas-enriched electrokinetic fluids) comprising an ionic aqueous solution of charge-stabilized oxygen-containing nanostructures in an amount sufficient to provide modulation of at least one of cellular membrane potential and cellular membrane conductivity, and therapeutic compositions and methods for use in treating a wound to a surface tissue or a symptom thereof. The electrokinetically-altered fluids or therapeutic compositions and methods include electrokinetically-altered ionic aqueous fluids optionally in combination with other therapeutic agents.
Method for modulating th17 cells and treating a disease related to modulation of th17 cells
The disclosure provides a method for modulating th17 cells, including: administering an antrodia cinnamomea (also named antrodia camphorata or taiwanofungus camphoratus) extract to a subject in need thereof, wherein the antrodia cinnamomea extract has an effect of modulating th17 cells. The antrodia cinnamomea extract may include a fruiting body extract of antrodia cinnamomea or a mycelium extract of antrodia cinnamomea..
Industrial Technology Research Institute
Detection and modulation of rheumatoid arthritis
A method for detecting and/or monitoring a chronic inflammation condition associated with rheumatoid arthritis. The method comprises the steps of: (i) collecting a sample; (ii) detecting in the sample, one or more of a hmgn1 protein, a lcp-1 protein, a prtn3 protein, a sec22b protein, and a pygl glycogen phosphorylase protein thereby producing a result; and (iii) correlating the result with a control.
Muscle specific receptor kinase and modulation thereof
Agents, compositions, and medicaments that pertain to modulating the activity of muscle specific kinase receptor (musk) and methods and uses thereof to modulate musk activity are encompassed herein. Also encompassed are screening assays to identify modulators of musk activity.
New York University
B-cell receptor complex binding proteins containing t-cell epitopes
The present invention relates to a polypeptide comprising a) a binding peptide binding to at least one protein selected from the group consisting of cd22, cd19, cd20, and cd21, and b) an immunogenic peptide comprising at least one t-cell epitope for use in vaccination of a subject against b-cell hyperproliferation or for use in the modulation of the immune response in a subject. The present invention further relates to a polynucleotide and a vector encoding said polypeptide and a host cell comprising the same.
Magnetic bearing device and vacuum pump
A magnetic bearing device comprises a first carrier generation section generating a first carrier signal; a second carrier generation section generating a second carrier signal whose phase differs by (π/2+θ) radian from the phase of the first carrier signal; a first demodulation section performing demodulation by sampling the first modulated signal at sampling timing shifted by a phase θ from timing at which the first carrier signal becomes a peak; a second demodulation section performing demodulation by sampling the second modulated signal at sampling timing shifted by a phase (−θ) from timing at which the second carrier signal becomes a peak; and a controller controlling current in each of the first radial electromagnet and the second radial electromagnet, based on a result of the demodulation by each of the first demodulation section and the second demodulation section.. .
Remote modulation of pre-transformed data
Methods, systems, and computer readable media can be operable to facilitate the remote modulation of pre-transformed data. In embodiments, a cmts can provide pre-transformed data in the frequency domain to a transmitter or receiver.
Arris Enterprises, Inc.
Frequency modulation signal demodulator and light receiving apparatus
A frequency modulation signal demodulator includes: an optical signal that has a wavelength, a frequency modulation signal being superimposed onto the optical signal; an optical filter that inputs the optical signal and has a central wavelength of a pass band at a wavelength that is shifted from a central wavelength of a spectrum of the optical signal and that is set to allow the pass band to be located at one portion of the spectrum; and an asymmetry optical interferometer that demodulates the frequency modulation signal by splitting light which has passed through the optical filter, delaying different time between split lights, and interfering the split lights.. .