Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
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| Number | Title | Issue Date |
| 7432836 | Multiplexed signal conditioner A signal conditioning circuit time share multiplexes anti-aliasing filters and an A/D converter. A plurality of first tier multiplexers each time share multiplex one of a plurality of antialiasing filters between a plurality of AC or baseband input signals from a pl... | 10/07/2008 |
| 7417571 | Method for providing a correlation A method for providing a correlation between a periodic analog/digital conversion and an angle-synchronous signal, in which the periodic analog/digital conversion is provided with a timing mark, which correlates with the angle-synchronous signal, and is assigned to ... | 08/26/2008 |
| 7388528 | Coding method and device for determining absolute angular position Method for coding at least one datum using three digital signals A, B, C delivered on respectively one channel, in which the third signal C is delivered by a combination of the first two signals A, B in order to form m binary triplets, where m | 06/17/2008 |
| 7382295 | Control unit for electric power steering apparatus Since an abnormality is judged by executing a square calculating process with respect to sin θ and cos θ for detecting an abnormality in an angular resolver, a processing time is elongated, and a burden to a CPU is great. Since the invention prepares a map which c... | 06/03/2008 |
| 7352304 | Interpolation apparatus in encoder An interpolation apparatus in an encoder includes an analog-to-digital converter for digitizing a sine wave signal and a cosine wave signal, respectively. An amplitude level detecting circuit detects each amplitude level of the digitized sine wave signal and cosine ... | 04/01/2008 |
| 7348897 | Apparatus for transmitting position detection signal of multi-shaft motor An apparatus for transmitting a position detection signal of a multi-shaft motor whereby a parallel-form detection signal that is output from position-detecting devices disposed on each of a plurality of motors and used for indicating a motor rotation position can b... | 03/25/2008 |
| 7268710 | Logic device for the transformation of the output of the RDC into series A-B pulses A logic device for the transformation of the output of the RDC into series A-B pulses according to the present invention comprises: a chip with its two minimal bits (LSB-LSB-1) simulating as the clock source of A-B pulses, a signal-processing pin (BUSY) which... | 09/11/2007 |
| 7263452 | Resolver-to-digital converting apparatus, method and program A resolver-to-digital converting apparatus calculates a resolver rotational angle from two-phase sampling values that are the result of sampling two-phase output signals, which are obtained from a single-phase-excited, two-phase output resolver, at peak timings of a... | 08/28/2007 |
| 7245243 | Lateral double-diffused MOS transistor and manufacturing method therefor The lateral double-diffused MOS transistor includes a drift region of a first conductive type provided on a semiconductor substrate of a second conductive type, and a body diffusion region of the second conductive type formed on the surface within the drift region. ... | 07/17/2007 |
| 7183952 | Resolver A resolver can make accurate angle detection in an entire detection range. The resolver includes a resolver stator having an excitation winding of one phase adapted to be excited by a power supply and a first and a second output winding of two phases for outputting ... | 02/27/2007 |
| 7176913 | Drive circuit for flat display apparatus and flat display apparatus A drive circuit for a flat display apparatus is disclosed wherein different display objects can be displayed at a time individually with appropriate gamma characteristics. Reference voltages are produced in a plurality of systems having different gamma characteristi... | 02/13/2007 |
| 7123175 | Angle detection apparatus computing phase differences between first and second phase angles A resolver use angle detection IC subjected to a phase lock operation so as to follow not an angle θ(t) for detection, but a phase angle ωot±θ(t) having an offset of a frequency ωot in the phase lock units. For this reason, when the excitation frequency ωot is... | 10/17/2006 |
| 7098653 | Phase angle determining circuit A phase angle determining circuit for determining a phase angle from a first input signal and a second input signal includes an input circuit configured to receive the first input signal and the second input signal and to provide a third signal, and an output circui... | 08/29/2006 |
| 7084790 | Device to effectuate a digital estimate of a periodic electric signal, related method and control system for an electric motor which comprises said device A device for effectuating a digital estimate of a periodic electric signal is described. The device comprising a linear DAC having an output signal, a comparator that compares the output signal of the linear DAC with the periodic electric signal, and logic circuitry... | 08/01/2006 |
| 7068191 | Method for determining the numerical value for the duration of a periodically repeated pulse signal, and device for carrying out said method The invention concerns a method for determining a numerical value for the duration of a periodically repeating pulsed signal. This method comprises the following steps: a) at time intervals, the period length of the signal is determined; b) at time intervals, a char... | 06/27/2006 |
| 7064692 | Solid-state synchro/resolver converter Methods and systems for simply and inexpensive converting the signals of solid-state sensors for use by analog systems and indicators. An embodiment of the system receives a DC voltage value from at least one sensor, converts the DC voltage value into one or more an... | 06/20/2006 |
| 7015840 | Resolver/digital converter An R/D converter allows high precision detection of a rotation angle of a rotor axis of a resolver having high rates of rotation. An A/D converter is built into a digital signal processor and converts a sine wave and cosine wave output from the resolver. An axis ang... | 03/21/2006 |
| 7012399 | Position detector correction method and electrically-powered steering apparatus This invention provides an electrically-powered steering apparatus capable of assisting a steering torque appropriately using a resolver. A reference signal is applied to a resolver arithmetic processing I/F circuit 34 and a resolver arithmetic processing I/F... | 03/14/2006 |
| 7009535 | Resolver/digital converter and control apparatus using the same This resolver/digital converter has a resolver, a resolver/digital converting portion and an exciting signal generator. The exciting signal generated from the exciting signal generator is supplied to the resolver, and the resolver signals produced from the resolver ... | 03/07/2006 |
| 6996482 | Device and method for determining the position of a rotor The invention relates to a device and a method for determining an electrical starting rotor angle of an electromotor. According to the invention, the electromotor (10) is subjected to an approximately sinusoidal voltage and the corresponding current path (i) ... | 02/07/2006 |
| 6972700 | Resolver/digital converter and control apparatus using the same This resolver/digital converter has a resolver, a resolver/digital converting portion and an exciting signal generator. The exciting signal generated from the exciting signal generator is supplied to the resolver, and the resolver signals produced from the resolver ... | 12/06/2005 |
| 6925401 | Method and apparatus for correcting resolver output A resolver output correction device receives sine output signal and cosine output signal from a resolver. Each of the sine output signal and the cosine output signal has an offset error and a gain differential error due to a secular variation. The correction device ... | 08/02/2005 |
| 6909948 | Accelerometer configuration The present invention provides a system and method for using the external accelerometer in an aircraft engine configuration as a backup accelerometer, in the event the internally located production accelerometer fails. The sensor location of the external acceleromet... | 06/21/2005 |
| 6861966 | Method for providing a digital current fluctuation signal A method for providing a digital current signal from an analog armature current signal of a motor. The method includes subjecting the analog current signal to an analog-to-digital conversion to produce a first digital current signal having current ripples for each c... | 03/01/2005 |
| 6661359 | Device and method for generating synchronous numeric signals A device for generating synchronous numeric signals, including a reference generating device supplying a reference signal and a first timing signal, both having a reference frequency; and a timed generating device supplying a synchronized signal having th... | 12/09/2003 |
| 6472841 | Low cost redundant resolver system A resolver (20, 21) is provided with redundant excitation windings in which only a single excitation winding (E1) is energized externally. Cross coupling from the externally energized winding (E1) excites the other excitation winding (E2). A control circu... | 10/29/2002 |
| 6331759 | Pulse drive angle measurement system and method A resolver system and method is provided for determining the angle position of a shaft. The resolver system includes a resolver having first and second output windings and an input or reference winding spaced apart from the first and second output winding... | 12/18/2001 |
| 6278388 | Method of converting an analog signal to digital signal by digitalizing error deviation It is an object of this invention to provide a digital conversion method for an analog signal in which, when sin(θ-$c;) is calculated as a error deviation &3xb5;, a first output signal sin(θ-$c;).multidot.f(t) of the previous stage of the error ... | 08/21/2001 |
| 6226562 | Method and system for adjusting and calibrating circuit parameters A method and system for calibrating analog integrated circuits. Initially, a single calibration circuit is formed integral with a group of analog integrated circuits. A control signal and a calibration signal are generated from the calibration circuit. Ne... | 05/01/2001 |
| 6104328 | Resolver to 360° linear analog converter and method The converter produces a linear analog signal that is linearly proportional to a shaft angle of a resolver over 360°. An excitation cosine signal supplied to the resolver and a response cosine signal received from the output windings of the resolver are ... | 08/15/2000 |
| 6069576 | Synchro-to-digital converter An advanced multi-channel synchro-to-digital converting device for deliveg synchro data to a data bus, includes a digital-to-synchro synthesizer for generating synthesized analog synchro test signals, and switching for selectively substituting the synthe... | 05/30/2000 |
| 5999113 | Interpolation circuit for encoder having a look-up table memory with reduced capacity Output of an encoder are sampled by A/D converters 11a and 11b to be converted to N bits A-phase and B-phase digital data DA and DB. In a look-up table memory 12, reference phase angle data of phase divisions and average gradient vectors of changes in pha... | 12/07/1999 |
| 5684719 | Software-based resolver-to-digital converter A software-based resolver-to-digital converter (RDC) (80) for computing an angle of rotation .THETA. of gimbal-mounted instrumentation (16) in a gimbal system. The RDC (80) computes the angle of rotation of the instrumentation using parameter signals rece... | 11/04/1997 |
| 5574450 | Synchronization adder circuit A synchronization adder circuit for digital data communication includes an A/D converter, a waveform-shaping circuit, a square circuit, a low-pass filter, and an adder. The A/D converter samples at given sampling points in time per sampling cycle a receiv... | 11/12/1996 |
| 5557273 | Magnetic azimuth detector to digital (MAD) converter An electrical system for converting a magnetic azimuth detector (MAD) signal into a corresponding digital signal. A conversion circuit receives a three-wire signal from the MAD; the three-wire signal is proportional to an angle θ, which indicates the pos... | 09/17/1996 |
| 5347277 | Dual phase resolver to digital converter A dual phase resolver to digital converter having two separate channels for generating rotor position data. The first channel generates an indication of rotor position based on a sinewave type reference signal applied to a first stator winding and the rot... | 09/13/1994 |
| 5160886 | Permanent magnet resolver for producing a resolver-to-digital converter compatible output A simplified magnetic resolver for measurement of rotary or linear position which comprises a permanent magnet rotor and two pairs of sensing coils. The resolver produces sine and cosine outputs compatible with known resolver-to-digital converters.... | 11/03/1992 |
| 5134404 | Quadrature error correction A method of correcting quadrature signal errors comprises the steps for generating an error function signal E by summing the squares of the quadrature signals and subtracting a constant K therefrom, saving the value of the error function E at θ equals ap... | 07/28/1992 |
| 5072179 | High resolution one and two dimensional position indicating apparatus with plural windings having a common connection and separately energized by signals of different phase Position indicating apparatus that allows position detection with windings provided on only one of two members and an output signal in which the position of one of the members relative to the other member is directly encoded in the phase of the output sig... | 12/10/1991 |
| 5034743 | AC encoded signal to digital converter An ac encoded signal to digital converter suitable for converting ac synchro or resolver signals to a corresponding digital angle value. A synchronous demodulator including a high pass input filter and low pass output filter utilizes the associated refere... | 07/23/1991 |
