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Apparatus for Simulating a High Five
A self-righting hand-arm configuration which is adapted to pivot when struck by a user, thereby simulating a "high five."
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| Number | Title | Issue Date |
| 7417394 | Arrangement for testing a power output stage The invention concerns a device for controlling a final power-output stage, the latter comprising three half-bridges consisting respectively of a series circuit including an upper semiconductor switch and a lower semiconductor switch and subjected to a service volta... | 08/26/2008 |
| 7397305 | High output power amplifier with adjustable voltage transformation ratio of transformer A high output power amplifier with change of voltage transformation ratio of a transformer is disclosed. The high output power amplifier using a transformer installed to output leads thereof, which can increase dynamic range and efficiency thereof as voltage transfo... | 07/08/2008 |
| 7388434 | BTL amplifier In a BTL amplifier of the present invention, between first and third transistor parts which are laterally adjacent, directions of semiconductor regions are parallel. Between the first and second transistor parts and the third and fourth transistor parts, each which ... | 06/17/2008 |
| 7355472 | Method and device for correcting signal distortions in an amplifier device The present invention provides a method for the correction of signal distortions in an amplifier device, wherein a digital PWM modulator is operated with a variable-frequency system clock. The present invention likewise provides a device for the correction of signal... | 04/08/2008 |
| 7327103 | Driver and method for control of voice coil motor in disk drive A driver for a voice coil motor in a disk drive includes a sensor that provides a sense current by sensing a coil current in the voice coil motor, a comparator that provides an error current by determining a difference between a command current and the sense current... | 02/05/2008 |
| 7321262 | Power conversion system A power conversion system comprising at least one Pulse Modulated Amplifier (1), including a pulse modulator for generating a pulse modulated signal based on a reference input (vi), a switching power stage arranged to amplify the pulse modulated si... | 01/22/2008 |
| 7315190 | PWM circuit and PWM integrated circuit for use in PWM circuit The present invention discloses a PWM integrated circuit which may receive a programming signal without any extra pin. The PWM integrated circuit comprises: a comparator having two outputs; two pins respectively electrically connected with the two outputs; and a pro... | 01/01/2008 |
| 7307474 | Integrated booster amplifier An amplifier is provided. The amplifier comprises an H-bridge with two halves. A capacitor and two inductors are coupled to the H-bridge. Each inductor, a half of the H-bridge, and the capacitor are configured as a boost converter. ... | 12/11/2007 |
| 7307475 | RF generator with voltage regulator A radio frequency (RF) generator includes a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an output node coupling the first and second half bridges and RF signals to a load; positiv... | 12/11/2007 |
| 7295062 | Pulse modulated power converter A pulse modulation power converter comprising a forward path including a forward block (15), a switching stage (11) for amplifying an output from the forward block, and an output filter (12) for low pass filtering an output signal from the switc... | 11/13/2007 |
| 7253625 | Precision gradient amplifier with multiple output voltage levels A controlled power supply (201, 222) drives a magnetic field gradient coil (161) of a magnetic resonance imaging apparatus (10). A gradient amplifier (201) includes a plurality of switchi... | 08/07/2007 |
| 7242244 | Method and arrangement for testing a power output stage An arrangement for testing a power output stage, with the power output stage includes at least one half bridge with an upper semiconductor switch and a lower semiconductor switch connected in series and to which an operating voltage is applied. A junction point betw... | 07/10/2007 |
| 7243058 | Method and circuit for operating a voice coil actuator of a mass data storage device A circuit (90) and method are presented to accurately determine a BEMF voltage of a VCM coil (20) after termination of a driving current in a first current direction in the coil (20). The circuit includes a circuit for activating selected VCM co... | 07/10/2007 |
| 7230482 | Method of preventing abrupt voltage changes at the outputs of a pair of amplifiers and control circuit for a pair of amplifiers self-configuring in a bridge configuration A common mode control circuit reduces abrupt voltage changes at the outputs of a pair of amplifiers which, in turn, reduces EMI and distortions that occur when the correlation between the signals fed to the four channels of an audio system diminishes. The common mod... | 06/12/2007 |
| 7187233 | Floating bridge amplifier system An audio amplifier system includes at least a pair of DC power supplies, a floating bridge current gain output section, and a differential voltage gain input section that draws operating current from the DC power supplies through floating DC current regulators. The ... | 03/06/2007 |
| 7184288 | System for controlling the dissipated power supply of a power stage working in a mixed Linear/PWM mode and driving an electromagnetic load The invention relates to a system for controlling the power dissipated by a power stage working in mixed Linear/PWM mode, for driving an electromagnetic load, the power stage comprising a power amplifier incorporating a bridge-like circuit, with a half bridge contro... | 02/27/2007 |
| 7167569 | Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance First and second channel bridge amplifiers are dynamically configured to drive either speakers or headphones. The first channel bridge amplifier includes a first amplifier driving one end of a first speaker through a mechanical switch in a headphone-jack, and a seco... | 01/23/2007 |
| 7145396 | Method and apparatus for protecting devices in an RF power amplifier A method and apparatus are provided for use with a power amplifier for protecting active devices on the power amplifier. A peak detector is used by control circuitry to detect the presence of a peak voltage that exceeds a threshold voltage. In response to the detect... | 12/05/2006 |
| 7142436 | Reliable bi-directional driving circuit for wide supply voltage and output range A bi-directionally load current driving circuit is disclosed. The bi-directionally load current driving circuit comprises a voltage source; a bridge circuit comprising a first switch, a second switch, a third switch, a fourth switch, a first output terminal, and a s... | 11/28/2006 |
| 7138864 | Overcurrent protection in amplifier topologies employing DC isolation An amplifier having output switch circuitry is described. A sense resistor is operable to transmit an output current associated with the output switch circuitry. Low-voltage circuitry is operable to provide a drive signal to the output switch circuitry. Isolation ci... | 11/21/2006 |
| 7129872 | Audio signal analog-to-digital converter utilizing a transformed-based input circuit An apparatus for converting an input analog audio signal into digital form including an analog-to-digital converter. An amplifier circuit and step-down transformer provide an interface for the input analog audio signal to the analog-to-digital converter. The step-do... | 10/31/2006 |
| 7119619 | Reconfigurable distributed active transformers Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dy... | 10/10/2006 |
| 7116166 | High fidelity, high power switched amplifier A gradient amplifier arrangement is described that comprises a gradient amplifier power stage. The device may be employed to provide a current to a gradient coil, as in a MRI system. The circuitry disclosed includes a series coupling of a first bridge amplifier oper... | 10/03/2006 |
| 7116168 | Power multiplier system and method A power multiplier system for an amplifier comprises a power multiplier control stage, an amplifier stage and a first switching stage connectable to the power multiplier control stage. The amplifier stage is connectable to the power multiplier control stage. The pow... | 10/03/2006 |
| 7113032 | Low distortion power amplifier and method of controlling a multi-channel power amplifier A multi-channel power amplifier for driving a plurality of loads, each associated to a respective channel, each channel comprising a pair of operational amplifiers, first and second, one operational amplifier of each channel being connectable through switches either... | 09/26/2006 |
| 7075371 | Distributed circular geometry power amplifier architecture The present invention discloses a distributed power amplifier topology and device that efficiently and economically enhances the power output of an RF signal to be amplified. The power amplifier comprises a plurality of push-pull amplifiers interconnected in a novel... | 07/11/2006 |
| 7061311 | Differential amplifier for dual bridge transducer A plurality of bridge transducers are provided in a dual arrangement. An output terminal from each transducer is coupled to differential inputs of an amplifier. Each of the other outputs from the transducers are respectively coupled together and used to control a bi... | 06/13/2006 |
| 7048085 | Weight classification system A method and apparatus is provided that classifies a seat occupant into one of several different weight classes based on an estimated value of the seat occupant weight. An occupant's measured weight varies when the occupant's seating position changes or when the veh... | 05/23/2006 |
| 7024864 | Bipolar current source based on a unipolar power supply An adjustable bipolar current source for a load, such as a thermoelectric cooler, includes a voltage-controlled power supply having a unipolar output, and an H-bridge. At least one of the two active elements on a first side and at least one of the two active element... | 04/11/2006 |
| 7023152 | Driving control device for actuator A driving control device for an actuator comprises a driving device to drive an actuator having an electric motor (30) and a driving control device (50) to control the rotation of the electric motor (30) by controlling the driving device. The dr... | 04/04/2006 |
| 6943514 | Motor control circuit for supplying a controllable driving current For applying a driving current to a motor, an H-bridge circuit is constructed by a first and a second switching unit and a first and a second linear unit. An error amplifier generates an error signal representative of a difference between the driving current detecte... | 09/13/2005 |
| 6937096 | Switched-mode power amplifier integrally performing power combining A switched-mode power amplifier is configured for performing power amplification of a plurality of signals input thereto and integrally summing (combining) those signals. Conceptually, this is achieved by replacing the input winding of the transformer component of a... | 08/30/2005 |
| 6922101 | Phase shift modulation class D amplifier An amplifier comprises a transformer comprising a primary coil and a secondary coil having a center tap on the secondary coil connected to a reference point. A constant periodic signal generator is connected to the primary coil. A signal reception and amplification ... | 07/26/2005 |
| 6919763 | Transconductance amplifier for inductive loads and method for driving inductive loads A transconductance amplifier for inductive loads and a relevant inductive load driving method, the amplifier having an input stage receiving a driving signal (set-point), a power stage connected downstream of the input stage and connected to the load and an output s... | 07/19/2005 |
| 6917245 | Absolute power detector A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a ... | 07/12/2005 |
| 6809586 | Digital switching power amplifier Apparatus for transmitting a collimated and directed beam of wave energy which includes a beam-forming network having a plurality of amplification sections coupled to an array of transmitting elements. Each one of the sections includes: a source of digital samples o... | 10/26/2004 |
| 6781445 | Low power large signal RF tuned buffer amplifier Methods and apparatus for buffering RF signals. A method includes receiving an input signal, wherein the input signal alternates between a first polarity and a second polarity. From the input signal, a first current is generated, wherein the first current is proport... | 08/24/2004 |
| 6756846 | Increased output swing line drivers for operation at supply voltages that exceed the breakdown voltage of the integrated circuit technology An improved line driver and method for increasing the available signal transmit power on a transmission line are disclosed. The improved line driver achieves an available transmit power increase without increasing the maximum current in the line driver output stage.... | 06/29/2004 |
| 6747513 | High fidelity floating bridge amplifier A high fidelity audio amplifier is provided having a solid-state floating bridge output stage and a preceding solid-state driver stage configured to operate with negligible voltage fluctuations and minimal current fluctuations, resulting in reduced driver stage dist... | 06/08/2004 |
| 6590447 | Precision bridge amplifier A bridge amplifier includes a first input node connectable to a power source having an input voltage, a second input node connectable to a control source having a control voltage, and a first and a second output node. A first amplifier module having a gai... | 07/08/2003 |
