| FENDER MUSICAL INSTRUMENTS CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20110135116 | Method and Apparaus for Biasing an Amplifier - An apparatus and method for biasing each amplifier of an amplification stage provides that the voltage across each current sensing element of each amplifier of the amplification stage is measured. For each pair of voltage measurements taken, a sum and difference is calculated, where the sum is processed to determine minima peaks and the difference is averaged. A portion of the sum term and the average of the difference term are summed to yield the individual bias current conducted by a first amplifier of the amplification stage. The difference between a portion of the sum term and the average of the difference term is calculated to yield the individual bias current conducted by the second amplifier of the amplification stage. The bias current conducted by the first and second amplifiers may then be individually modified manually, or conversely, may be modified automatically based upon the bias current measurements taken. | 06-09-2011 |
| 20110043278 | METHOD AND APPARATUS FOR BIASING AN AMPLIFIER - An apparatus and method for biasing each amplifier of an amplification stage provides that the voltage across each current sensing element of each amplifier of the amplification stage is measured. For each pair of voltage measurements taken, a sum and difference is calculated, where the sum is processed to determine minima peaks and the difference is averaged. A portion of the sum term and the average of the difference term are summed to yield the individual bias current conducted by a first amplifier of the amplification stage. The difference between a portion of the sum term and the average of the difference term is calculated to yield the individual bias current conducted by the second amplifier of the amplification stage. The bias current conducted by the first and second amplifiers may then be individually modified manually, or conversely, may be modified automatically based upon the bias current measurements taken. | 02-24-2011 |
| 20100329484 | Audio Amplifier Attachable to Speaker System by Way of Magnetic Coupler and Method Therefor - An audio system comprises a first enclosure for housing a first audio component and a second enclosure for housing a second audio component. The first enclosure includes a surface having a plurality of first structures, the first structures comprising one selected from a group consisting of a plurality of protrusions and a plurality of receptacles. The second enclosure includes a surface having a plurality of second structures, the second structures comprising the other one from the group consisting of the plurality of protrusions and the plurality of receptacles. The protrusions are configured to be inserted into the receptacles along a first direction such that the first enclosure is maintained in a first position relative to the second enclosure in the presence of a shear force that is applied in a direction that is perpendicular to the first direction. | 12-30-2010 |
| 20100180756 | Portable Multi-Functional Audio Sound System and Method Therefor - A portable multi-functional audio sound system has an enclosure and control panel with an optional display on a front portion of the enclosure. The control panel provides for selection among menu options which are presented on the display. An audio input is coupled for receiving a live audio signal. An electronic circuit receives user commands from the control panel and displays configuration information on the display. The electronic circuit has an amplifier for amplifying the live audio signal, and a synthesizer for generating programmable audio signal in response to a MIDI data stream. The MIDI data stream is routed to the digital signal processor or to the synthesizer. A digital signal processor controls the menu options on the display. A speaker is mounted within the enclosure and coupled for receiving a combined signal of the live audio signal and the programmable audio signal. | 07-22-2010 |
| 20090007752 | Guitar Body Reinforcement - A support for a body of a stringed instrument includes a brace structure having a plurality of legs radially disposed about a central body. The brace structure has a substantially flat first surface. A portion of the plurality of legs conforms to a soundhole opening which is integrated into the body of the stringed instrument. A brace for a body of a guitar includes a unitary structure adapted to mount to a soundboard of the guitar. The unitary structure has a plurality of arms radially disposed about a central body. A method of assembling a guitar includes mounting a brace structure to a soundboard of the guitar. Again, the brace structure has a plurality of legs radially disposed about a central body. | 01-08-2009 |
