Patent application number | Description | Published |
20110075854 | ACTIVE NOISE CONTROLLER - On an active noise controller, an adjustment reference signal generator generates an adjustment reference signal Sra by reading the waveform data sequentially at a read location shifted by a given amount from a read location for a reference signal Sr with respect to the waveform data at a reference signal generator. A one-tap adaptive filter generates a control signal Scp by multiplying the adjustment reference signal Sra by a filter factor W. A gain controller outputs a compensation control signal Sca generated by multiplying the control signal Scp by gain G. A speaker outputs the compensation control signal Sca as a cancellation sound. | 03-31-2011 |
20110123042 | ACTIVE VIBRATION/NOISE CONTROL DEVICE - An active vibration/noise control device which is provided with a plurality of cancel signal generation parts for generating output signals for respectively cancelling noises generated at a plurality of vibration/noise generation sources. The effect of the suspension of either of first and second cancel signal generation parts on the other is reduced. According to the operating state of the first cancel signal generation part, the simulated transmission properties of the second cancel signal generation part are adjusted. Consequently, without regard to the operating state of the first cancel signal generation part, the noise control performance of the second cancel signal generation part can be maintained. | 05-26-2011 |
20110206213 | ACTIVE TYPE ACOUSTIC CONTROL SYSTEM - In an acoustic control system an operation range of an active type noise control device (an ANC device) and an operation range of an active type effect sound control device (an ASC device) are exchanged in accordance with the number of working cylinders of an engine. | 08-25-2011 |
20110272229 | VEHICLE-MOUNTED ACTIVE VIBRATION REDUCING DEVICE - Provided is a vehicle-mounted active vibration reducing device wherein vibrations in a plurality of directions are reduced by a single dynamic damper. Since an actuator is attached so as to be supported by an elastic member attached to a bracket, the actuator can be used as a mass of a dynamic damper. The moving directions of the actuator are the forward and rearward directions, and are different from the moving directions of the dynamic damper using the actuator as a mass, i.e., the upward and downward directions. Accordingly, vibrations can be controlled in the forward and rearward directions which correspond to the moving directions of the actuator as well as the upward and downward directions which correspond to the moving directions of the dynamic damper. | 11-10-2011 |
20120101611 | SOUND EFFECT GENERATING DEVICE - A control signal generating means of a sound effect generating device sets the reference volume that is the reference value of the volume of a sound effect when a vehicle is in a predetermined travel state, compares the measured volume of the sound effect detected by a sound effect detecting means when the vehicle is in the predetermined travel state and the reference volume, and corrects the gain of a control signal on the basis of the result of the comparison. | 04-26-2012 |
Patent application number | Description | Published |
20080260961 | Method Of Manufacturing Nozzle Plate - A method of manufacturing a nozzle plate including: a step for forming the nozzle hole on a plate to become the nozzle plate; a first photocurable resin injection step for (i) coating with a photocurable resin a first surface of the plate and (ii) injecting the photocurable resin into an area inside the nozzle hole; a first curing step for applying light to the plate, so as to form a first cured resin part including a columnar part and an annular part; a first uncured resin removing step for removing an uncured portion of the photocurable resin; a base film formation step for forming a base film on the first surface; a cured resin removing step for removing the first cured resin part; and a water-repellent film formation step for coating with a water-repellent film a surface of the base film and a portion of the first surface of the plate exposed from the base film. | 10-23-2008 |
20090304990 | MANUFACTURING METHOD FOR A NOZZLE PLATE AND A NOZZLE PLATE - A manufacturing method for a nozzle plate including a plurality of nozzle holes may include the step of forming a plurality of through-holes extending through a plate member in a thickness direction of the plate member. The manufacturing method may also include the step of forming a water repellant film in a region of one surface of the plate member where apertures of the through-holes are not positioned. The manufacturing method may further include the step of pressing individual regions on the one surface of the plate member, the individual regions respectively including the apertures of the through holes, to separate at least portions of the water repellant film formed in the individual regions from the water repellant film formed on the one surface. | 12-10-2009 |
20100073418 | HEAD CAP AND IMAGE RECORDING APPARATUS - A head cap, including: a bottom plate portion having a bottom surface facing a liquid-droplets ejecting surface of a liquid-droplets ejecting head; a projecting portion which functions as a side wall, which extends from the bottom plate portion so as to define a recessed portion with the bottom plate portion, and whose distal end contacts with a surrounding of a liquid-droplets ejecting area formed in the liquid-droplets ejecting surface so as to enclose the liquid-droplets ejecting area; and an inner plate which is disposed along the projecting portion so as to cover an inner wall surface of the projecting portion. | 03-25-2010 |
20100245507 | METHOD OF MANUFACTURING LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE HEAD - In a method of manufacturing a liquid discharge head, the liquid discharge head has a flow-path unit having a liquid flow path, and a piezoelectric actuator unit. The liquid flow path has discharge openings and corresponding pressure chambers. The actuator unit has actuators which apply pressure to liquid in the pressure chambers. The method includes positioning the actuator unit to oppose the surface of the flow-path unit while extending on the plurality of pressure chambers, forming a particular film that is impermeable to the liquid on a supporting member. The particular film is secured to the surface of the flow-path unit by placing the supporting member on the flow-path unit, and aligning the supporting member such that a surface of the particular film opposes the surface of the flow-path unit while the openings of the plurality of pressure chambers are covered. | 09-30-2010 |
20110128328 | Piezoelectric Actuator, Liquid Discharge Head, and Method of Manufacturing Same - A piezoelectric actuator may include a piezoelectric layer. The piezoelectric actuator may also include an electrode layer which is disposed on a surface of the piezoelectric layer. The piezoelectric actuator may further include a metal terminal which is disposed on the electrode layer, and configured as a contact point with respect to an external terminal. The piezoelectric actuator may yet further include a metal layer which is disposed between the piezoelectric layer and each of the metal terminal and the electrode layer. | 06-02-2011 |
Patent application number | Description | Published |
20090028353 | ACTIVE SOUND EFFECT GENERATING APPARATUS - An active sound effect generating apparatus includes a controller (a fourth acoustic adjuster and a fifth acoustic adjuster) which determines the amplitude of a control signal by adjusting the amplitudes of reference signals (intermediate signals) depending on an engine rotational frequency change [Hz/second] calculated by an engine rotational frequency change calculator and an accelerator opening [%] detected by an accelerator opening sensor. | 01-29-2009 |
20090060217 | VEHICULAR ACTIVE VIBRATORY NOISE CONTROL APPARATUS - A vehicular active vibratory noise control apparatus includes an adaptive notch filter (second control signal generating unit) for generating a corrected error signal representative of a road noise only by removing the component of a rotational frequency (the component of an engine muffled sound) from an error signal, generates a first control signal from the corrected error signal and a reference signal, and reduces the component of the rotational frequency (engine muffled sound) at a position where a microphone is located (evaluating point). | 03-05-2009 |
20090067638 | VEHICULAR ACTIVE VIBRATORY NOISE CONTROL APPARATUS - A subtractor subtracts a first control signal output from a first bandpass filter from an error signal, and supplies a differential signal to a second bandpass filter. The second bandpass filter, which has a central frequency of 70 Hz, is affected by an operation of the first bandpass filter, i.e., a first control signal, which has a central frequency of 40 Hz. The first bandpass filter is not affected by an operation of the second bandpass filter, i.e., the second control signal. | 03-12-2009 |
Patent application number | Description | Published |
20080240455 | ACTIVE NOISE CONTROL APPARATUS - A subtractor subtracts an echo canceling signal (Ĉ·y | 10-02-2008 |
20080240456 | ACTIVE NOISE CONTROL APPARATUS - A control characteristics changing unit reads, from an EEPROM, various control parameters in an ANC electronic controller, which correspond to specification information acquired from ECUs. The control characteristics changing unit then outputs control parameters, depending on changed specification information among the read control parameters, as change signals Sm | 10-02-2008 |
20080240457 | ACTIVE NOISE CONTROL APPARATUS - A subtractor subtracts an echo canceling signal Ĉ·yl(n−1) from a canceling error signal e(n) to estimate a residual noise to be silenced at the position of a microphone, and outputs a first basic signal x | 10-02-2008 |
20080292110 | VEHICULAR ACTIVE NOISE CONTROL SYSTEM - A frequency detecting circuit estimates the frequency fp of a propeller shaft based on the frequency fc of vehicle speed pulses, and calculates a control frequency fp′ which is a harmonic of the frequency fp. A basic signal generator generates a basic cosine wave signal xp | 11-27-2008 |
20080310642 | ACTIVE SOUND CONTROL APPARATUS - An active sound control apparatus includes a delay circuit for delaying the output of a frequency component of a sound effect by delaying an engine rotation frequency signal representative of an engine rotation frequency [Hz], a delay circuit for delaying the output of an amplitude component of the sound effect by delaying an engine rotation frequency change signal representative of an engine rotation frequency change [Hz/second], and delay circuits for delaying the output of all components of the sound effect by delaying a control signal for controlling the outputs of speakers. | 12-18-2008 |
Patent application number | Description | Published |
20130082834 | OPERATION STATUS MONITORING APPARATUS AND OPERATION STATUS MONITORING METHOD - An operation status monitoring apparatus for monitoring an operation status of a plant via a display screen, includes: an inflow acquisition unit that acquires an amount of material or heat flowing into a predetermined region of plant facilities, an outflow acquisition unit that acquires an amount of material or heat flowing out of the predetermined region, a calculation unit that calculates a balance between an amount of material acquired by the inflow acquisition unit and an amount of material acquired by the outflow acquisition unit or a balance between an amount of heat acquired by the inflow acquisition unit and an amount of heat acquired by the outflow acquisition unit, and a display means that graphically displays the balance calculated by the calculation unit on a display screen. | 04-04-2013 |
20130113700 | OPERATING AND MONITORING SCREEN DISPLAYING APPARATUS AND METHOD - An operating and monitoring screen displaying apparatus according to the present disclosure selects a screen among a plurality of split display screens displaying information about a part of a process in a plant and displays the selected screen as an operating and monitoring screen. The apparatus includes a receipt unit which receives a selection of a screen to be displayed among a plurality of split display screens; a split screen display unit which displays the screen selected through the receipt unit; and a map display unit which displays a map in which process elements constituting the process are associated with display areas, and indicates, on the map, a display area associated with a process element included in the screen being displayed by the split screen display unit. | 05-09-2013 |
20130116813 | OPERATING AND MONITORING APPARATUS AND METHOD - An operating and monitoring apparatus for monitoring an operating condition of a plant through a monitoring screen of the present disclosure. The apparatus includes a storage unit which stores a plurality of display screens to be displayed on the monitoring screen; a receipt unit which receives an operation of selecting one display screen among the display screens stored in the storage unit; and a display unit which displays the display screen, selected through the receipt unit, on the monitoring screen. The display screens stored in the storage unit includes, for example, five to nine display elements, and the display elements are, for example, graphs or patterns associated with numerical values based on data acquired from the plant. | 05-09-2013 |