Abstract:
EMP actuators are provided on a band intended for a wearable electronic device. Such a band may include (a) a flexible circuit having provided thereon an electrical interface to the wearable electronic device and conductive traces for distributing control signals received from the wearable electronic device over the electrical interface to predetermined locations on the flexible circuit; (b) electromechanical polymer (EMP) actuators each being mounted on one of the predetermined locations and each being connected by the conductive traces to receive one or more of the control signals; and (c) a protective covering over the flexible circuit and the EMP actuators.
Abstract:
Wälzlager (2) oder Gleitlager (21) mit einem Außenring (6) und einem Innenring (4), zwischen denen optional mehrere Wälzkörper (8) angeordnet sind, wobei an und/oder in dem Innenring (4) und/oder an und/oder in dem Außenring (6) und/oder an mindestens einem der optionalen Wälzkörper (8) mindestens eine aktive Schwingungsdämpfereinheit (16), insbesondere ein Piezoelement, angeordnet ist, eine Wälzlager- oder Gleitlageranordnung (I; 11), sowie ein Verfahren zum Dämpfen von Schwingungen in einem derartigen Wälzlager (2) oder Gleitlager (21).
Abstract:
A sound generator for generating sound with a predetermined spectrum comprises a diaphragm (10), a magnet coil (21, 22) for deflecting the diaphragm (10), a capacitor (40) and a resonant circuit which comprises the capacitor (40) and the magnet coil (21, 22).
Abstract:
An electromagnetic induction actuator for producing a melody and vibration is electrically connected to an integrated circuit for outputting a melody producing signal and a vibration signal. The melody producing signal or a signal in which the melody creating signal and the vibration creating signal are mixed is applied from the integrated circuit to the electromagnetic induction actuator thereby to realize an arrival alert of a mobile terminal such that the magnitude of vibration varies in accordance with the rhythm of the melody.
Abstract:
In a portable device for driving a vibration actuator by means of a battery, a power supply circuit equipped with a boosting circuit for converting a voltage of a built-in battery 1 into a high voltage and a pulse generating circuit for intermittently supplying power to the vibration actuator is provided, and a boosted DC or AC voltage is impressed on the vibration actuator continously intermittently or discontinously.
Abstract:
An apparatus (108) and method for controlling an ultrasonic transducer (107a) preferably including a signal generator circuit (502), a signal sensing circuit (504), a modulator circuit (506) and a bias circuit (508). The signal generator circuit provides a pulsed drive signal to the ultrasonic transducer. The signal sensing circuit senses the voltage (510) and current (512) of the drive signal. The modulator circuit provides a frequency control signal (516) and an energy control signal (514) to the control signal generator circuit corresponding to a detected phase difference between the sensed voltage and the sensed current of the drive (503) signal. The frequency control signal and energy control signal operated to adjust the frequency and energy level, respectively, of the drive signal. Within the transducer, a movable element in contact with a liquid is preferably positioned corresponding to the level of a dc bias signal provided by the bias circuit. By adjusting the level of the dc bias signal, the flow rate of the liquid is adjusted. By applying the drive signal to the transducer, the viscosity of the liquid is adjusted which establishes a second flow rate of the liquid. When the frequency and energy level of the drive signal are changed, a third flow rate of the liquid is established.
Abstract:
A vehicle horn system (10) is disclosed which provides a plurality of different sounds, each indicative of the occurence of a different event. The horn system includes a vehicle horn (14), a horn switch (24), and a control circuit (12) having a plurality of inputs, one of which is coupled to the horn switch (24). Activation of the horn switch (24) causes the control circuit (12) to operate the horn (14) to produce a standard horn warning. Other events for which the horn system produces an audible alert include backing-up of the vehicle and changes in the vehicle alarm status. The horn system can include a vehicle alarm sensor (24) and a second vehicle horn (16) that produces a different sound than the first horn (14). The control circuit (12) is configured to operate only one of the horns when the vehicle is travelling below a certain speed and to operate both horns when the vehicle is travelling above that speed.
Abstract in simplified Chinese:本发明系提供一种可时常跟随机械性共振点而动作之振动产生设备,具有以弹簧构件12浮固定之磁铁11与电磁线树13构成之振动产生部2,以使该电磁线圈13进行方形波驱动而获得振动力之振动产生设备1。该振动产生设备1,具备有在每一固定期间用以检测电磁线圈13之驱动电压,且逐次进行当该驱动电压之感应电压波形为右上时,增高电磁线圈13之驱动频率,同时当感应电压波形为左上时降低电磁线圈13之驱动频率之控制的驱动控制部10。借此,由于可使电磁线圈13之驱动频率移行至振动产生部2之共振频率,故可使电磁线圈之驱动频率时常跟随机械性共振点,而可获得较大之振动力量。