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 |
| 7359817 | Method of and device for re-calibrating three-dimensional visual sensor in robot system A re-calibration method and device for a three-dimensional visual sensor of a robot system, whereby the work load required for re-calibration is mitigated. While the visual sensor is normal, the visual sensor and a measurement target are arranged in one or more rela... | 04/15/2008 |
| 7203718 | Apparatus and method for angle rotation An angle rotator uses a coarse stage rotation and a fine stage rotation to rotate an input complex signal in the complex plane according to an angle θ. The coarse stage rotation includes a memory device storing pre-computed cosine θM and sine θM | 04/10/2007 |
| 6138131 | Arc-tangent circuit for continuous linear output A device suitable for determining arc-tangent of an angle θ is provided. Circuitry generates a first square wave at a frequency ωt and a second square wave at the frequency ωt but shifted by a phase difference equal to the angle θ. A pulse width modul... | 10/24/2000 |
| 5815424 | Digital angle conversion method In a conventional digital angle conversion method, constituent parts partially have an analog arrangement, the entire arrangement is not easily made as a monolithic semiconductor, and a low price, a light weight, and high reliability cannot be easily obta... | 09/29/1998 |
| 4599703 | Low frequency AC waveform generator Low frequency sine, cosine, triangle and square waves are synthesized in circuitry which allows variation in the waveform amplitude and frequency while exhibiting good stability and without requiring significant stabilization time. A triangle waveform is ... | 07/08/1986 |
| 4476538 | Trigonometric function generator A universal trigonometric function generator which is selectively programmable by pin-strapping to generate any of the standard trigonometric functions (sine, cosine, tangent, cotangent, secant and cosecant). The circuit includes two identical sine-functi... | 10/09/1984 |
| 4475169 | High-accuracy sine-function generator A sine-function generator comprising a plurality of bipolar transistors with their collectors connected to a pair of output terminals in alternating antiphase and their emitters connected in common to a single current source. The bases of the transistors ... | 10/02/1984 |
| 4346447 | Divisional reading device for sine signals A device for dividing two sine signals out of phase with each other obtained from a detector in accordance with a position change and to enable a greater resolution and accuracy in the determination of displacement comprises a division circuit connected t... | 08/24/1982 |
| 4335444 | Multiple pulse-width multiplier For forming ##EQU1## in a pulse width multiplier, two input voltages bi are summed at the input of an inverter and are added, after each passes through a separate switch and proportional stage, at the input of a smoothing stage, to the ... | 06/15/1982 |
| 4335443 | Electronic angle resolver The circuit of the angle resolver compares a first angle to a second angle and produces an output voltage which is an analog representation of the angular difference between the two. One of the angles, which might be a controlled variable is represented b... | 06/15/1982 |
| 4250559 | Coordinate converter for changing polar vector variable into Cartesian vector variables A coordinate converter distinguished by low cost of hardware and useful for the field-oriented control of a rotating-field machine contains two multipliers, an adder and a subtraction element in a logic circuit. Optionally, two proportional elements can b... | 02/10/1981 |
| 4180859 | System for measuring the speed of rotation of a synchro by means of a sampling technique By combining three single-phase output voltages of a synchro, signals are obtained which are proportional to the sine and the cosine of the angle of rotation of the synchro shaft. Said signals are sampled at predetermined instants by switching means contr... | 12/25/1979 |
| 4149260 | Analog to digital converter for providing the digital representation of an angle A system for determining the value of an angle represented by first and second analog signals having amplitudes which are a function of the SIN and COS of the angle. The SIN and COS signals are full wave demodulated in such a manner that the demodulated s... | 04/10/1979 |
| 4144581 | Audio signal processor Random audio signals are converted into sine-waves of corresponding frequency and duration, and harmonics are derived from the sine-waves. The harmonics are controllably attenuated and selectively inverted and combined to form an output signal. The conver... | 03/13/1979 |
| 4092724 | Polar converter A polar display representing the ratio of two input signals is provided by exponentiating the logarithmic ratio of two input signals. The DC voltage thus produced, which is proportional to the ratio between the two input signals is then multiplied by a co... | 05/30/1978 |
| 4051350 | Position measuring device The invention concerns a position measuring device used for measuring the position of a vessel equipped with three hydrophones arranged at the apexes of a triangle in relation to a transmitting beacon on the sea bed. Measuring of the differences in the tr... | 09/27/1977 |
| 4032768 | Constant velocity vector generator A Constant Velocity Vector Generator is disclosed for connecting X, Y coordinate points of a rectangular coordinate display system. Simultaneous ƊX and ƊY step voltages are converted to ramp voltage pairs which are applied to appropriate X and Y deflect... | 06/28/1977 |
| 4028490 | MSK digital data synchronization detector Baudot code characters each having start and stop bits are transmitted in the form of a MSK digital data signal having a stop-start triangle corresponding to adjacent stop and start bits of two adjacent Baudot characters. The MSK signal is correlated with... | 06/07/1977 |
| 4021658 | Angular rate deriving apparatus The circuitry illustrated utilizes duty cycle conversion means for providing signals indicative of Sin and Cos of an angle θ as well as the derivative of Sinθ and Cosθ. The derivative signals are then duty cycle multiplied by the Sinθ and Cosθ signal... | 05/03/1977 |
| 4017726 | Four quadrant rate taker and synchronizer An apparatus for extracting signals, proportional to data relative to a given variable, from two data modulated signals which mutually define the variable. Each signal is followed-up with a linear integrate/clamp circuit, the outputs of which are cross mu... | 04/12/1977 |
| 4011440 | System for generating an angular rate signal from an angular position signal utilizing a constant amplitude-variable carrier phase signal The instant invention relates to turn-rate signal generating circuitry for interrupting slaving of the directional gyro and roll erection of the vertical gyro in a heading, attitude and reference system whenever the turn-rate of the vehicle on which the s... | 03/08/1977 |
| 3997071 | Method and apparatus for indicating effective digging depth of a backhoe In a backhoe of the type having an outreach boom horizontally pivotally mounted relative to a vehicle, a downreach boom horizontally pivotally mounted to the free end of the outreach boom, and a digging bucket horizontally pivotally mounted to the free en... | 12/14/1976 |
| 3984672 | Solid state translator A transducer for combining an analog signal input and a digital signal input and providing an analog signal output, equal to the sum or difference, wherein the digital input signal is divided into a first component, for which a very accurate analog equiva... | 10/05/1976 |
| 3984831 | Tracking digital angle encoder A tracking digital angle encoder utilizing a translator, for providing the difference between an analog angle input and a digital angle input, a counter, which feeds the digital angle input to the translator, a detector, which controls the counter and is ... | 10/05/1976 |
| 3975625 | Electronic coordinate transformation using multiplier circuits An electronic coordinate transformation network using multiplier circuits for mechanizing and solving the equations relating the vectors of one coordinate system to those of another coordinate system.... | 08/17/1976 |
| 3959582 | Solid state electronically rotatable raster scan for television cameras A electronic system develops a rotating raster scan in synchronism with a tating image enabling a stationary image sensor to generate video signals for producing an erect, non-rotating image at a remote location. Sine and cosine signals are synchronously ... | 05/25/1976 |
| 3938394 | Combination balance analyzer and vibration spectrum analyzer A combination electronic device provides balance analyzing capabilities, narrow band and wide band spectrum analysis capabilities, automatic tracking filtering capabilities, precision dynamic balancing with remote phase presentation, and tracking filterin... | 02/17/1976 |
