Class / Patent application number | Description | Number of patent applications / Date published |
318114000 | IMPACT, MECHANICAL SHOCK, OR VIBRATION-PRODUCING MOTORS | 31 |
20090021191 | MOBILE ELECTRONIC APPARATUS HAVING A RECHARGEABLE STORAGE DEVICE - A mobile electronic apparatus includes a storage device for storing electrical energy and a rotating mechanism configured to energize the apparatus. The rotating mechanism includes a motor, a shaft connected to the motor, and a mass eccentrically attached to the shaft, where the motor is configured to rotate the shaft and the mass to cause the mobile electronic apparatus to vibrate when activated, where motion of the mobile electronic apparatus is configured to cause the mass and the shaft to rotate with respect to the motor, and where rotation of the shaft with respect to the motor is converted into electrical energy. The apparatus also includes circuitry for harvesting the electrical energy and for recharging the storage device with the harvested electrical energy. | 01-22-2009 |
20090072768 | USE OF AN ACCELEROMETER TO CONTROL VIBRATOR PERFORMANCE - A mobile device includes a vibrator, an accelerometer that senses a parameter of rotation, and a processor. The vibrator includes a drive motor and a drive circuit. The accelerometer senses a speed of rotation of the vibrator. The processor analyzes the sensed speed of rotation and generates a drive voltage that is received by the drive circuit to adjust the drive motor to produce a pre-determined, desired rotational speed. In another embodiment, the accelerometer senses an amplitude of a vibration produced by the vibrator. The processor analyzes the sensed amplitude of a vibration and generates a drive voltage that is received by the drive circuit to adjust the drive motor to produce a pre-determined, desired vibration amplitude. The processor may also compare the sensed parameter with a pre-determined desired parameter of rotation and generate a signal responsive to a result of the comparison and based on stored vibrator calibration curves. | 03-19-2009 |
20090284190 | Vibrating Element - This vibrating element includes a movable portion driven to vibrate at a prescribed resonance frequency, a driving portion vibrating the movable portion by cyclically supplying a pulse signal and a detecting portion detecting the vibrational state of the movable portion, while the driving portion is so formed as to supply the pulse signal at a first frequency substantially identical to the resonance frequency of the movable portion at least in starting and to cyclically supply the pulse signal at a second frequency smaller than the first frequency in detection of the vibrational state of the movable portion. | 11-19-2009 |
20090315488 | METHOD AND SYSTEM FOR PROVIDING DIFFERENT VIBRATION OUTPUTS - A method and system for providing different vibration outputs in an electronic device having a vibrator are provided. The method includes assigning different intensity parameters to a plurality of pitches, selecting a music file comprising a plurality of musical notes, acquiring the pitch and duration for each musical notes of a selected music file and associating the corresponding intensity parameters to the respective pitches, and controlling the intensity and duration of the vibrator according to the intensity parameters and duration derived from the acquiring step. | 12-24-2009 |
20100052578 | SUBMINIATURE LINEAR VIBRATOR - Disclosed is a subminiature linear vibrator including a stationary body ( | 03-04-2010 |
20100117564 | METHOD AND SYSTEM FOR ULTRASOUND EXCITATION OF STRUCTURES OF ANY GEOMETRY FOR THE PURPOSE OF REDUCING FRICTION - Method for ultrasound excitation of structures of any geometry, comprising the steps of producing a connection between a generator, an ultrasound converter, and at least one mechanical system to be excited, passing through a frequency range for determining an operating point, wherein at each approached frequency the power consumption of the system to be excited determines a current, and/or a voltage emitted by the generator, which is measured using a sensor such that a measurement value of the sensor renders the power output to the system to be excited, and performing an ultrasound excitation at the determined operating point, or around an environment around the operating point, wherein the operating point, once determined, or the environment around the operating point, once selected, is not modified anymore, and device for the ultrasound excitation of structures of any geometry by means of this method using a generator, an ultrasound converter, and at least one mechanical structure, wherein the generator has control means for the voltage, current, and frequency, by means of which these magnitudes can be varied across a certain range, and at least one sensor for determining a voltage reflecting the power supplied to the total system, and/or a current reflecting the power supplied to the total system at a given frequency, and a memory for storing target values for the power supplied to the total system input by a user on one hand, and of parameter values for voltage, current, and frequency on the other hand, in which the desired target values are achieved, or are achieved as closely as possible. | 05-13-2010 |
20110148330 | VIBRATION FREQUENCY ADJUSTING SYSTEM AND METHOD - A vibration frequency adjusting system and method measures energy of a vibration generated by a vibrator of an electronic device, and converts the vibration energy to a level of electric charge. The system and method further compares the level of electric charge with preset electric charge thresholds, and adjusts the level of electric charge to a preset level of electric charge according to the comparison. Then, the system and method converts the adjusted preset level of electric charge to a voltage, and outputs the voltage to vibrator, so as to adjust the frequency of the vibration according to the voltage. | 06-23-2011 |
20110204830 | VIBRATION MOTOR DRIVING APPARATUS USING A SERIAL INTERFACE - A vibration motor driving apparatus using a serial interface comprises a serial interface part for receiving an effect command (effect digital data or effect generating command digital data) from a main processor upon occurrence of an event, a unit for generating a clock when the effect command is received from the serial interface unit, a vibration motor driving signal generating unit including an effect data generating part for outputting effect data having a resonance frequency of a vibration motor on the basis of the effect command received from the serial interface unit and the clock received from the clock generating unit, and a D/A converting part for converting the effect data into a vibration motor driving signal, and the vibration motor which vibrates in accordance with the vibration motor driving signal to generate a haptic rhythm. | 08-25-2011 |
20110260657 | VIBRATION CONTROL DEVICE AND METHOD - A vibration control device and method, wherein the vibration control device includes a first driving unit for vibrating the vibration control device up and down, a second driving unit for moving the vibration control device left or right, and a control unit for controlling the first driving unit and the second driving unit, upon an occurrence of an event. The controller controls the second driving unit to move the vibration control device at a time when the first driving unit vibrates the vibration control device off of a surface. | 10-27-2011 |
20120025742 | VIBRATION GENERATING APPARATUS - A vibration generating apparatus with high yield, low cost, and can exhibit vibration tactile haptic effects even with variation in the natural frequency of a mechanical vibrator, including a damping system having a damping ratio ζ<1 to support a mechanical vibrator to a fastening part, and a magnetizing unit generating a dynamic magnetic field to vibrate the mechanical vibrator by non-contact, the mechanical vibrator generating a beat vibration by making the frequency of a drive voltage applied to the magnetizing unit, from a drive start or middle of drive, to be a non-resonant frequency out of a damped natural frequency of the mechanical vibrator, wherein the apparatus comprises a forced vibration control unit controlling to stop application of the drive voltage, in a beat wave defining an amplitude of the beat vibration, at a second valley part after a first peak part from the side of the drive start. | 02-02-2012 |
20120217904 | DEVICE, METHOD AND PROGRAM FOR AUTOMATIC CONTROL COMPUTERS FOR ELECTROMAGNETIC DAMPERS - Automatic control device ( | 08-30-2012 |
20130033202 | VIBRATION REDUCTION APPARATUS AND METHOD - A vibration reduction apparatus according to the present invention includes: an actuator apply a force to a beam supporting a cabin so as to bend the beam; an acceleration sensor measuring the acceleration of the cabin; and a controller controlling the actuator based on the measured acceleration. When a vibration containing a plurality of vibration components is transmitted to the cabin via the beam, the vibration reduction apparatus thus structured can achieve the vibration reduction more certainly by applying a bending load to the beam so that the bending load caused by the vibration is cancelled; this allows providing damping of the cabin more certainly. | 02-07-2013 |
20130063054 | DRIVING APPARATUS FOR VIBRATION-TYPE ACTUATOR - A driving apparatus for a vibration-type actuator that applies an AC voltage to an electro-mechanical energy conversion element and generates a driving force between a vibration member and a movable member includes a voltage amplitude command unit configured to instruct an amplitude of the AC voltage, a pulse width command unit configured to monotonically increase a pulse width command and a change rate of the pulse width command according to an increase in a voltage amplitude command, and output a pulse width command, and a pulse signal generation unit configured, when a pulse signal that directly or indirectly generates the AC voltage is generated at the same frequency as the AC voltage to apply the AC voltage to the electro-mechanical energy conversion element, to generate a pulse signal having a pulse width corresponding to the pulse width command based on the pulse width command. | 03-14-2013 |
20130162178 | Vibrator - A vibrator includes a data port for receiving wave patterns and controls for selecting a stored wave pattern. In one embodiment, the vibrator includes two motors each spinning a separate offset weight, providing greater control over vibrations. In some embodiments the wave patterns represent a musical score or song stored in the vibrator and later selected and used to drive the vibrator and/or provide an acoustic output for listening. In some embodiments at least one LED light on the vibrator housing may also be modulated by the selected vibration pattern. In some embodiments the vibrator may also send or receive a wireless digital music signal to either control the acoustic output of a separate sound producing device or to control the mechanical vibrations generated by the vibrator. | 06-27-2013 |
20130162179 | VIBRATION EXCITER SYSTEM WITH A FEEDBACK CONTROL UNIT BASED ON AN OPTICAL LINEAR ENCODER - The vibration exciter system with a feedback control unit based on an optical linear encoder comprises a vibration exciter, a signal generator and a power amplifier. The exciter system further comprises an optical linear encoder converting the displacement of the moving component of the exciter into A/B pulse with a phase difference of 90°, a filtering, shaping and level translator unit converting the A/B pulse into standard pulse with standard shape and level, a subdivider and orientation recognizer unit refining the standard pulse and recognizing the moving orientation, an analog converter unit converting the refined standard pulse into analogue signal that reflects the displacement of the moving component. The standard signal outputted by the signal generator and the converted analogue signal are inputted into a subtracter as the minuend and subtrahend respectively. The output of the subtracter is inputted into the power amplifier and then into the vibration exciter as a driving signal. The present invention has a high precision. | 06-27-2013 |
20140028221 | Method of Adaptively Tuning Motor Speed - Methods and apparatuses related to adaptively tuning vibratory motors are disclosed. One embodiment takes the form of a method of adaptively tuning a vibratory motor including operating the motor at a plurality of voltage levels and recording the frequency of operation of the motor at each of the plurality of voltage levels. The method also includes creating a curve based on the recorded frequency and voltage levels and selecting a drive voltage based upon an intersection of a desired frequency of operation and the created curve. | 01-30-2014 |
20140117887 | HAPTICALLY-ENABLED SYSTEM WITH BRAKING - A haptically-enabled system includes an actuator that has a first terminal and a second terminal. The second terminal is coupled to a voltage source, and a first switch is coupled to the first terminal and to ground. A second switch is coupled to the actuator. The second switch is parallel to the actuator. | 05-01-2014 |
20140159619 | VIBRATION DEVICE AND INFORMATION PROCESSING APPARATUS - A disclosed vibration device includes a first vibrating motor that causes a first eccentric spindle to be rotated so that an angular velocity changes regularly within a rotation period, and a second vibrating motor that causes a second eccentric spindle to be rotated in the same angular velocity as the angular velocity of the first eccentric spindle in an opposite rotation direction to a rotation direction of the first eccentric spindle. Then, the first vibrating motor and the second vibrating motor are arranged so that a rotating shaft of the first vibrating motor is parallel with a rotating shaft of the second vibrating motor. | 06-12-2014 |
20140320045 | CIRCUITS AND METHODS FOR DRIVING ECCENTRIC ROTATING MASS MOTORS - Circuits and methods for driving ERM motors are disclosed herein. An embodiment of the circuit includes an input, wherein an input signal is receivable at the input and a back EMF signal. The circuit operates in a closed loop mode when the back EMF signal is less than a lower threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase. The circuit operates in an open loop mode when the back EMF signal is greater than a high threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase. | 10-30-2014 |
20140320046 | DETECTIBLE INDICATION OF AN ELECTRIC MOTOR VEHICLE STANDBY MODE - Systems and methods are provided for detecting that an electric motor drive vehicle (e.g., an electric scooter or motorbike) is idling based on one or more of sensed parameters indicative of the idling state. These sensed parameters may include one or more of, alone or in any combination, a sensed throttle position, at least one sensed electrical characteristic of a traction electric motor, a power converter, or an electrical storage device of the vehicle, and a sensed rate of rotation of a drive shaft of the traction electric motor or of a wheel drivably coupled to the traction electric motor. Upon detecting that the vehicle is in an idling state, a controller of the vehicle enters into a standby mode. In the standby mode, a relatively small amount of electrical power is supplied to the traction electric motor to cause a vibration of the motor to alert a driver that the vehicle is ON in the standby mode and is ready to be driven. Additionally, an audible and/or visual indication may be issued in the standby mode to further alert the driver that the vehicle is ON and ready to be driven. | 10-30-2014 |
20140333235 | VIBRATOR MOTOR SPEED DETERMINATION IN A MOBILE COMMUNICATIONS DEVICE - One embodiment relates to testing and verifying vibrator motor operation during manufacturing of a device and during in-the-field use. The test relies on an integrated motion sensor or other mechanical measurement circuitry, such as, for example, an accelerometer. In one embodiment, a speed determination for a vibrator motor performance during initial manufacture of the device. Subsequently, when vibration is detected during the in-the-field use, the vibration may be sampled using the integrated mechanical measurement circuitry. Once sampled, a speed may be determined based on a resonance of the sampled signal. Over time, the various speed determinations for the vibrator motor may be analyzed to determine an overall health of the vibrator motor. A threshold for detecting when the overall health of the vibration motor over time has degraded may be predetermined. A notification of a degradation of vibrator motor performance is sent to either a manufacturer or user of the mobile communications device. Other embodiments are described and claimed. | 11-13-2014 |
20140361714 | LINEAR VIBRATION MODULES AND LINEAR-RESONANT VIBRATION MODULES - The current application is directed to various types of linear vibrational modules, including linear-resonant vibration modules, that can be incorporated in a wide variety of appliances, devices, and systems to provide vibrational forces. The vibrational forces are produced by linear oscillation of a weight or member, in turn produced by rapidly alternating the polarity of one or more driving electromagnets. Feedback control is used to maintain the vibrational frequency of linear-resonant vibration module at or near the resonant frequency for the linear-resonant vibration module. Both linear vibration modules and linear-resonant vibration modules can be designed to produce vibrational amplitude/frequency combinations throughout a large region of amplitude/frequency space. | 12-11-2014 |
20150042246 | ELECTRIC TOOL AND FASTENING METHOD USING THE SAME - An electric tool in which a pulsating input voltage is inputted to a drive circuit of a motor, characterized in that the electric tool includes: a control part configured to vary output power or output voltage supplied to the motor from the drive circuit in accordance with the pulsation of the input voltage inputted to the drive circuit. | 02-12-2015 |
20150061548 | VIBRATION GENERATING DEVICE - A vibration generating device includes a motor having a rotation shaft, a rotating body attached to the rotation shaft, a rotation control unit configured to control rotation of the motor, and magnetic generating unit which is disposed at a non-contact position with the rotating body. The rotating body has the center of gravity positioned on an axis of the rotation shaft, is formed of a magnetic material, and generates vibration by a magnetic attraction force applied to the magnetic material by a magnetic field from the magnetic generating unit when the rotating body is rotated. | 03-05-2015 |
20150115846 | PIEZOELECTRIC COOLING CONTROL APPARATUS AND METHOD - The present invention relates to a piezoelectric cooling control apparatus and method, which set pulse parameters based on the temperature of the heating unit of a cooling target device, and thus control piezoelectric cooling. The piezoelectric cooling control apparatus includes a temperature sensing unit for sensing temperature of a heating unit of a cooling target device. A determination unit determines whether to activate piezoelectric cooling, based on the sensed temperature of the heating unit and a temperature setting range. A setting unit is configured to, if it is determined by the determination unit to activate piezoelectric cooling, set pulse parameters based on the temperature setting range and the temperature of the heating unit. A pulse control unit generates a PWM waveform based on the set pulse parameters and outputs the PWM waveform. A piezoelectric cooling unit performs piezoelectric cooling based on the PWM waveform. | 04-30-2015 |
20150115847 | VIBRATION GENERATING APPARATUS - A vibration generating apparatus with high yield, low cost, and can exhibit vibration tactile haptic effects even with variation in the natural frequency of a mechanical vibrator, including a damping system having a damping ratio ξ<1 to support a mechanical vibrator to a fastening part, and a magnetizing unit generating a dynamic magnetic field to vibrate the mechanical vibrator by non-contact, the mechanical vibrator generating a beat vibration by making the frequency of a drive voltage applied to the magnetizing unit, from a drive start or middle of drive, to be a non-resonant frequency out of a damped natural frequency of the mechanical vibrator, wherein the apparatus comprises a forced vibration control unit controlling to stop application of the drive voltage, in a beat wave defining an amplitude of the beat vibration, at a second valley part after a first peak part from the side of the drive start. | 04-30-2015 |
20150137713 | ADAPTIVE LINEAR RESONANCE ACTUATOR CONTROLLER - A system includes a controller to control movement of a linear resonant actuator (LRA). The system includes a monitor in the controller to monitor a back electromotive force (BEMF) signal from the LRA representing the movement of the LRA. The monitor generates an indicator that indicates whether or not movement of the LRA has occurred. A primary loop module in the controller controls acceleration and braking of the LRA based on the monitored BEMF signal if the indicator from the monitor indicates that LRA movement has occurred. An alternate cycle module in the controller pushes the LRA at a predetermined frequency if the indicator from the monitor indicates that LRA movement has not occurred. The push is employed to move the LRA when the BEMF signal is undetectable by the monitor with respect to a predetermined threshold. | 05-21-2015 |
20150340981 | MECHANICAL DEVICES AND METHOD OF CREATING PRESCRIBED VIBRATION - The invention provides a system for creating a prescribed vibration profile on a mechanical device comprising a sensor ( | 11-26-2015 |
20160067743 | VIBRATION DATA GENERATION PROGRAM AND VIBRATION DATA GENERATION DEVICE - A vibration data generation device that generates vibration data for a vibration reproduction device, which has a plurality of vibrators, in order to control each vibrators, includes an acquisition part that acquires information indicating a virtual vibration source which is input to an input part and a generation part that generates vibration data which includes a vibration pattern of each of the plurality of vibrators of the vibration reproduction device for reproducing a position of the acquired virtual vibration source. | 03-10-2016 |
20160103492 | HAPTICALLY-ENABLED SYSTEM WITH BRAKING - A haptically-enabled system includes an actuator that has a first terminal and a second terminal. The second terminal is coupled to a voltage source, and a first switch is coupled to the first terminal and to ground. A second switch is coupled to the actuator. The second switch is parallel to the actuator. | 04-14-2016 |
20160144404 | SYNCHRONIZED ARRAY OF VIBRATION ACTUATORS IN AN INTEGRATED MODULE - The disclosure relates to integrated modules for Synchronized Array of Vibration Actuators (FIG. | 05-26-2016 |