Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7436188 | System and method for improving time domain processed sensor signals Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion are applied to the signals in a... | 10/14/2008 |
| 7382887 | Method and device for reducing high frequency error components of a multi-channel modulator A method and device for reducing error components of a multi-channel modulator. The method comprises the steps of inverting substantially half of the channels of a modulator, and reducing error components between said inverted channels and said non inverted channels... | 06/03/2008 |
| 7356186 | Digital representation of audio waveforms using peak shifting to provide increased dynamic range A system allows greater dynamic range in fixed-width sample representations of waveforms. Known properties of the waveform are used to determine an unlikely, or impossible, data condition to be used as an exception condition. Samples following the exception conditio... | 04/08/2008 |
| 7319761 | Method and apparatus for locating and correcting sound overload The invention describes a graphical method for detecting and adjusting audio overload conditions. The graphical user interface provides a user complete playback control of several audio tracks, detection of overload conditions such as audio clipping, and graphical m... | 01/15/2008 |
| 7302067 | Audio system for a computer A computer audio system includes an audio codec and a tone controller. The audio codec is operably coupled to receive audio information, which includes tone control settings, PCM digital audio inputs and PCM digital audio outputs. In addition, the audio codec may re... | 11/27/2007 |
| 7286675 | Audio signal processors An audio signal processor includes a tone control (23). The tone control comprises two low-pass filters (221, 222) operating in current-mode and a subtractor (223) which subtracts the output currents of the filters to produce a band-pass charact... | 10/23/2007 |
| 7260209 | Methods and apparatus for improving voice quality in an environment with noise A method for improving a downlink signal received by a listener on a phone is disclosed. The method includes calculating an environment noise level of the listener and filtering and adjusting gain of the downlink signal based on the environment noise level. ... | 08/21/2007 |
| 7248690 | Voice signal clipping circuit and telephone set therewith A voice signal clipping circuit comprising, an amplifier which amplifies an input voice signal to a permissible level and a clipper which clips an amplitude component in excess of the permissible level from an output signal from the amplifier. ... | 07/24/2007 |
| 7239710 | Stereo radio receiver with noise suppression For the purpose of largely suppressing the noise pulses caused in a stereo radio receiver in the reception signal, particularly by the ignition system of a motor vehicle, a digital field strength signal representing the analog field strength signal is produced for e... | 07/03/2007 |
| 7231037 | Active audio compressing in telecommunication An output reducing system for a telephone system, e.g., implemented in a headset, includes an input line and an output line, wherein the input line transmits an incoming signal to an output transducer and the output line transmits an outgoing signal from an input tr... | 06/12/2007 |
| 7203326 | Noise suppressing apparatus In an apparatus which estimates characteristics of a surrounding noise only when an input signal is soundless and performs a noise reduction or suppression of the input signal based on the estimated result, a signal noise ratio is estimated from the input signal, an... | 04/10/2007 |
| 7200238 | Acoustic signal level limiter An acoustic signal level limiter provides a telephone handset/headset user protection against loud audible signals generated within a communications system. The acoustic signal limiter comprises an acoustic signal level attenuation circuit and at least one acoustic ... | 04/03/2007 |
| 7139403 | Hearing aid with digital compression recapture Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input s... | 11/21/2006 |
| 7130433 | Noise reduction apparatus and noise reduction method An apparatus for reducing noise component contained in an input signal has: a detecting device for detecting a level of the noise component; an adjusting device for adjusting a level of the input signal so as to make the level of the noise component equal to or lowe... | 10/31/2006 |
| 7076222 | Digital controlled AGC An automatic gain control loop for a radio receiver, comprising a switchable lowpass filter (21) to reduce distortions in an analogue gain control signal (6) by switching said switchable lowpass filter (21) to a low time constant in case a chang... | 07/11/2006 |
| 7035417 | System for reducing noise in the reproduction of recorded sound signals A noise reduction system is connected to at least two input channels for receiving input signals that have substantially identical program content but differing instantaneous noise transients. The system selects a filtered input signal that has the lowest instantane... | 04/25/2006 |
| 7027607 | Hearing aid with adaptive microphone matching A method and apparatus for matching or balancing average signal levels between at least two input signal channels and their respective microphone elements so as to allow a hearing aid or instrument to maintain optimum directional characteristics over time are provid... | 04/11/2006 |
| 6931139 | Computer audio system A computer audio system includes an audio codec and a tone controller. The audio codec is operably coupled to receive audio information, which includes tone control settings, PCM digital audio inputs and PCM digital audio outputs. In addition, the audio codec may re... | 08/16/2005 |
| 6911925 | Linearity compensation by harmonic cancellation A linearity compensation circuit provides cancellation of harmonic distortion introduced by a non-linear system into an input signal by providing a separate harmonic correction component for each harmonic of a fundamental frequency of the input signal. The harmonic ... | 06/28/2005 |
| 6795559 | Impulse noise reducer detecting impulse noise from an audio signal An impulse noise reducer detects impulse noise in an audio signal by detecting and smoothing the high-frequency amplitude of the audio signal, attenuating the non-smoothed amplitude according to the smoothed amplitude, and comparing the attenuated amplitude with a t... | 09/21/2004 |
| 6795740 | Rectifying overflow and underflow in equalized audio waveforms The invention is a method, apparatus and computer readable program for eliminating overflow and underflow by re-adjusting or rectifying the audio levels of an audio signal in those portions where overflow/underflow occurs. In a first preferred embodiment a si... | 09/21/2004 |
| 6654471 | Method, equipment and recording device for suppressing pulsed interference in analogue audio and/or video signals Clicks in voice and music signals are removed by detecting and interpolating the click. The use of a permanently set threshold value above the peak value of the audio signal is known for detecting the clicks, and interpolation carried out on the basis of ... | 11/25/2003 |
| 6556685 | Companding noise reduction system with simultaneous encode and decode A system and method for reducing noise in an audio signal. The system includes an encoder, a decoder and a single feedforward sidechain for generating a control signal that is used as input to a variable gain element in the encoder and in the decoder. The... | 04/29/2003 |
| 6516067 | Anti pop for power off In order to quickly decrease voltage applied to a mute pin 18 of an audio amplifier circuit 19 of an electronic appliance, an end of a capacitor 20 connected to the mute pin is connected to a discharge circuit which is fired on when the electronic applian... | 02/04/2003 |
| 6255904 | Anti-pop circuit for AC amplifiers The anti-pop circuit includes a unity gain buffer with an input coupled to the source of the reference voltage and an output coupled to the input of the amplifier to accelerate the charging of the input coupling capacitor of the amplifier at every turn-on... | 07/03/2001 |
| 6205225 | Lower sideband modulation distortion cancellation An audio peak limiter in which the lower sideband of the modulation distortion spectrum is canceled. The peak limiter is realized by multiplying the input signal by a control signal. The Hilbert transform of the control signal is multiplied by the Hilbert... | 03/20/2001 |
| 6058194 | Sound-capture and listening system for head equipment in noisy environment The system of the invention includes a sound-capture and listening system for a helmet in a noisy environment, and is characterized in that it includes, on the sound-capture side, at least one microphone (20) followed by a sampling device (25), by a decim... | 05/02/2000 |
| 5894522 | Distortion reduction system A distortion reduction system for an audio device having first and second power supply voltages, a driver circuit for amplifying an audio signal, and, a speaker for outputting the amplified audio signal, allows a speaker driver system to increase signific... | 04/13/1999 |
| 5881157 | Apparatus for compensating a frequency characteristic of a reproduction audio signal An apparatus for compensating a frequency characteristic of a reproduction audio signal removes noise from the reproduction signal in the high-frequency region during reproduction of the audio signal, and then emphasizes the noise-removed reproduction sig... | 03/09/1999 |
| 5828762 | Apparatus for compensating audio signal recording An audio signal recording compensation apparatus enhances a frequency characteristic and prevents saturation of a recording signal by controlling the level of the recording signal when an audio signal is recorded. The audio signal recording compensation a... | 10/27/1998 |
| 5812598 | Hearing assist system employing time variant modulation transmission to hearing aid A short range magnetically coupled wireless communication system employs time variant modulation of a high repetition rate pulse stream and magnetic coupling between a transmission magnetic element and a receiving magnetic element. The pulse stream is mod... | 09/22/1998 |
| 5796850 | Noise reduction circuit, noise reduction apparatus, and noise reduction method A mixed signal which contains a noise is inputted. Then, the signal is inverted and amplified by an inverting amplifier which has a high gain, and attenuated by a attenuator in order to generate an inverted phase signal. In a mixer, the inputted signal an... | 08/18/1998 |
| 5771301 | Sound leveling system using output slope control A sound leveling system for maintaining an output signal below a slope of predetermined maximum output levels includes a signal adjusting circuit, an integrator, and a peak rate limiter circuit. The signal adjusting circuit receives input signals and a co... | 06/23/1998 |
| 5642076 | No turn-on pop noise amplifier An audio amplifier with no turn-on pop noise is achieved by the following features: (i) an input stage which operates under zero common-mode input voltage, (ii) an output stage which provides the low voltage end of its voltage swing very close to ground v... | 06/24/1997 |
| 5586192 | Method of and device for detecting pulsatory interference signals in a sound signal For detecting pulsatory interference in a sampled audio signal, the value of a given signal sample is compared with the values of previous as well as subsequent signal samples within a selected time window. If the given sample, multiplied by a selected at... | 12/17/1996 |
| 5535280 | Circuit for removing ignition noise from a multiplex signal In a digital circuit which removes ignition noise from a multiplex signal in a radio receiver, especially in a car radio, the multiplex signal is supplied via a high-pass filter (3) and a squaring or absolute value determing circuit (4) as a digital signa... | 07/09/1996 |
| 5278774 | Alarm for transient underwater events An alarm for detecting transient senic events determines an estimate of background environmental acoustic events or noise by computing a short time correlation function for individual segments of data and then subtracting an estimated mean of the correlat... | 01/11/1994 |
| 5226088 | Apparatus and methods for active noise suppression in stereo multiplex signals Method and apparatus for active noise suppression in stereo multiplex signals particularly in an automotive radio receiver includes an insertion circuit where the disturbed signal section is replaced with an insertion signal formed by sampled signal value... | 07/06/1993 |
| 5201009 | Signal processor An operational amplifier (1) and resistors (11) and (12) damp an input signal (V1) by -6dB. Since a positive input terminal of the operational amplifier (1) is fixed at -3V, DC component of the input signal (V1) is down-shifted to -3... | 04/06/1993 |
| 5168526 | Distortion-cancellation circuit for audio peak limiting Apparatus for reducing distortion in a peak limited audio siganl. The amount of low-frequency spectral energy in the input audio signal is determined for a peak limited signal and used to control low-frequencies in the output audio signal. Identical low-p... | 12/01/1992 |
