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 |
| 7248197 | A/D converter that is implemented using only digital circuit components and digital signal processing A TAD (time analog/digital) type of A/D converter has plural series-connected delay units each producing a delay in accordance with the level of a converter input voltage, with a first-stage delay unit receiving a pulse signal at commencement of each A/D conversion ... | 07/24/2007 |
| 7203229 | Apparatus for and method of measuring jitter A signal under measurement is band-limited, and frequency components around a fundamental frequency of the signal under measurement are extracted. Waveform data (approximated zero-crossing data) close to zero-crossing timings of the band-limited signal are sampled, ... | 04/10/2007 |
| 7098839 | Flash array digitizer Apparatus for rapidly acquiring a large number of samples of a signal under test, stores the samples in a waveform memory without converting the samples to binary form. The signal under test is applied to an arrangement of comparators and exclusive-OR gates to provi... | 08/29/2006 |
| 6937953 | Circuit configuration for receiving at least two digital signals A circuit configuration has a calibration circuit, which is connected to terminals for two digital signals and has outputs for two digital output signals which are each derived from one of the digital signals. The calibration circuit effects temporal control of a sw... | 08/30/2005 |
| 6249238 | Sigma-delta modulator and method for suppressing a quantization error in a sigma-delta modulator A sigma-delta modulator is disclosed for conversion of an analog or digital low frequency signal of high resolution into a quantized analog or digital signal, with an error feedback circuit for suppression of quantization errors. The sigma-delta modulator... | 06/19/2001 |
| 6072873 | Digital video broadcasting In order to implement the Digital Video Broadcasting descrambling algorithm in the context of MPEG compressed data streams containing interleaved sections of scrambled and unscrambled data, at a data rate of 60 MBits/sec with a clock of 2.7 MHz, a stream ... | 06/06/2000 |
| 5625357 | Current steering semi-digital reconstruction filter A current steering semi-digital reconstruction filter for a digital-to-analog conversion circuit, which includes a shift register having a 1-bit digital input stream and a plurality of output taps, where each output tap provides a 1-bit signal which has a... | 04/29/1997 |
| 5585802 | Multi-stage digital to analog conversion circuit and method This invention is for a digital-to-analog conversion circuit (DAC) which includes an interpolation filter circuit, a noise shaper circuit and a semi-digital FIR filter circuit. The entire DAC circuit provides noise shaping, analog filtering and oversampli... | 12/17/1996 |
| 5481214 | Voltage to pulse-width conversion circuit A voltage to pulse-width conversion circuit having counter which counts a reference frequency and produces a digital output signal having a multi-bit digital value; a decoder which decode the multi-bit digital value of the digital output signal and output... | 01/02/1996 |
| 5404386 | Programmable clock for an analog converter in a data processor and method therefor A data processing system (10) includes a programmable clock signal for an analog converter (28). A duty cycle of the programmable clock signal is programmed by an external user in a prescaler rate selection register (16). A counter subsequently counts for... | 04/04/1995 |
| 5396247 | Analog-to-digital conversion circuit having a pulse circulating portion A pulse circulating circuit includes inverting circuits each for inverting an input signal and outputting an inversion of the input signal. A time of signal inversion by each of the inverting circuits varies in accordance with a power supply voltage appli... | 03/07/1995 |
| 5345168 | Burst-by-burst laser frequency monitor A frequency monitoring system constructed of a rack mountable instrument for monitoring laser pulse frequency. The pulsed laser frequency is displayed on a linear bar-graph array composed of Light Emitting Diodes (LED's). The display is calibrated so that... | 09/06/1994 |
| 5277497 | Voltage to pulse-width conversion circuit A voltage to pulse-width conversion circuit includes a logarithmic clock generator for receiving a reference frequency signal and generating a logarithmic clock signal TCK; a counter for counting the number of clock pulses of the logarithmic clock signal ... | 01/11/1994 |
| 5245646 | Tuning circuit for use with an integrated continuous time analog filter A tuning circuit (10) and method of operation for tuning an analog filter (40). The tuning circuit (10) has an integrator with an input portion (12) and a comparator portion (14), a counter (32), and a decoder (34). The integrator is implemented with an R... | 09/14/1993 |
| 5233637 | System for generating an analog regulating voltage A system for generating an analog regulating voltage to be supplied to one or more circuit elements on an integrated circuit. The circuit elements have operational characteristics that are voltage dependent and the analog regulating voltage having the a p... | 08/03/1993 |
| 5095279 | Variable frequency sine wave carrier signal generator A system and method for generating a variable frequency sine wave carrier signal operates in response to a start signal and a rate signal. The system includes a first counter which drives a second counter via an EPROM; the second counter is clocked by the... | 03/10/1992 |
| 5091699 | Frequency division network having low phase noise A frequency division network is disclosed in which a sinusoidal signal is converted to a digital format for frequency division and then converted back to the sinusoidal format, the sinusoidal output waveform having low phase noise. In a preferred embodime... | 02/25/1992 |
| 5073733 | Delay circuit with muting to prevent noise due to random data at output A delay circuit includes a memory addresses of which is designated by a counter incremented in response to each clock signal from an initial value set by an initial value setting circuit to an end value. A digital signal is written into an address as desi... | 12/17/1991 |
| 5054039 | Digital calibration circuit employing composite sine wave signals A digital calibration circuit provides 1/3 octave center frequencies substially in the range of 50 Hz-12.5 kHz (25 tones) simultaneously at the output at repeatable levels. The system converts digital data to an analog representation for use in calibrati... | 10/01/1991 |
| 4929947 | Constant width pulse distribution in a digital to analog converter for serial digital data A digital-to-analog converter comprising: a distributing circuit (2, 3, 4, 5; 2, 13, 14-26) for distributing data pulses, which are bit-serially supplied at constant time intervals, into a plurality of routes and for providing them as pulses having a constant ... | 05/29/1990 |
| 4912419 | Signal conditioning circuit and method An apparatus and method for detecting the period of a frequency signal having a period greater than a minimum period and within a period range. A clock frequency is generated such that when multiplied by the predetermined range the product is less than 2 | 03/27/1990 |
| 4891828 | Voltage to pulse-width conversion circuit A voltage to pulse-width conversion circuit includes a counter which counts a reference frequency signal and produces a multi-bit digital value; a digital/analog converter which converts the digital value into an analog signal; and a voltage comparator wh... | 01/02/1990 |
| 4837573 | Digital to analog converter A circuit and method for converting a binary number having a plurarity of bits, Do to Dn, to a signal having a proportionally equivalent characteristic. The circuit comprises a parallel input for receiving each bit, Do to ... | 06/06/1989 |
| 4831641 | Method and apparatus for analyzing a visible object The visually observable information is expressed in quantitive form according to an arrangement wherein there is firstly detected the distribution, size, shape and similar characteristics of objects appearing essentially in one level or plane of the sampl... | 05/16/1989 |
| 4749878 | Input device for control system A variable force push button is used as an input device for a control system. Specifically, a bi-directional storage device produces a command that is applied to an element to be controlled. A signal is generated having a characteristic representative of ... | 06/07/1988 |
| 4720841 | Multi-channel voltage-to-frequency convertor A circuit for providing an indication of watt-hours from a voltage input that is an analog of watts comprises a source of a high-frequency square wave and a precision triangular wave at a frequency that is derived from the high-frequency square wave by fr... | 01/19/1988 |
| 4715051 | Electronic potentiometer An adjuster can provide a potentiometric type of adjustment with a control generator, a driver and a transducer. The control generator can provide an adjusting signal to the driver. The driver is coupled to the control generator for providing a drive sign... | 12/22/1987 |
| 4685614 | Analog to digital conversion employing the system clock of a microprocessor, the clock frequency varying with analog input The present invention performs analog to digital conversion using the system clock of a microprocessor, the system clock being the clock which controls the rate of operation of the microprocessor. A varying analog signal is applied to the clock frequency ... | 08/11/1987 |
| 4647905 | Improved pulse-width-modulation signal converter An improved signal converter which isolates a measurement voltage by converting an analog signal into a pulse-width-modulated output signal. The converter has a first integrator followed in series by a threshold value controller whose output signal actuat... | 03/03/1987 |
| 4642492 | Multiple phase clock buffer module with non-saturated pull-up transistor to avoid hot electron effects A clock buffer circuit for multiple phase complementary clocking signals that receives a plurality of corresponding enabling signals and generates a like plurality of clock signals in response thereto. Each clocking signal is generated by a buffer module ... | 02/10/1987 |
| 4636773 | Binarily weighted pulse width digital-to-analog converter A digital-to-analog converter system for converting a digital input signal having parallel words, each word including multi-bit groups of weighted significance, and which is provided at an input word rate of W Hz, is disclosed. The digital-to-analog conve... | 01/13/1987 |
| 4583856 | Resolution system for interferometer Analog-to-digital conversion and a computer produce finer resolution for interferometer distance measurement. The system applies to a laser interferometer producing two detected signals with voltages 19 and 20 that vary to form two sine waves in quadratur... | 04/22/1986 |
| 4573037 | Analog-to digital converter and method A system and method is provided for producing digital signals proportional to selected parameters of an input signal supplied to a modulator. The modulated output of the modulator is supplied to a delaying bistable circuit, and both the original output an... | 02/25/1986 |
| 4543558 | Method and apparatus for converting radiant energy levels to digital data A method and apparatus for converting radiant energy levels to digital data wherein an image sensor is provided having at least one row of sensor elements each including a light sensitive capacitor and an access switch and which changes state produces a c... | 09/24/1985 |
| 4542371 | Method of converting a digital signal into an analog signal and a converter therefor This invention relates to a method of converting a digital signal into an analog signal and a digital-to-analog converter therefor. In the invention, a digital signal having varying pulse width values is converted into a first pulse width signal, with each pul... | 09/17/1985 |
| 4539694 | Non-linear counting circuit The counting circuit described issues a numerical information which is a non-linear function of the number of pulses applied to its input. The circuit comprises dividers which divide by integers Ki the pulses applied to their inputs. A first selecto... | 09/03/1985 |
| 4535462 | Automatic velocity controlled delay circuit An automatic velocity delay circuit utilizes the output signal of a radio equency velocimeter for determining the time a projectile takes to pass a sensor located at the muzzle end of a gun. The circuit uses this time interval pulse and clocking pulses to... | 08/13/1985 |
| 4524326 | Digitally-driven sine/cosine generator and modulator An electrical circuit and method for multiplying an analog input signal by a sinusoidal function having an instantaneous phase specified by a number signaled in binary format. As a sine wave generator, the binary number is supplied by a counter clocked at... | 06/18/1985 |
| 4499588 | System for converting the frequency of a pulse train to a binary number A system for converting the frequency of a pulse train to a binary number includes an output counter which converts the pulse train to the binary number. Sampling time periods are applied as pulses to a comparator through another counter. The number of de... | 02/12/1985 |
| 4467319 | Signal conversion circuit This invention relates to a signal conversion circuit, and more particularly to a signal conversion circuit to convert a digital signal sampled in synchronism with a sampling pulse into a pulse width signal having a pulse width corresponding to the digita... | 08/21/1984 |
