Bizarre Patents
Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Application No. | Application Title | Issue Date |
| 20120105264 | ANALOG-TO-DIGITAL CONVERTER An analog-to-digital converter includes: a first latch row corresponding to a first stage; a second latch row corresponding to a second stage; and a digital processor for encoding output signals of the second latch row and generating a digital signal. The first latch ro... | 05/03/2012 |
| 20120068871 | AD CONVERTER-EQUIPPED TEMPERATURE SENSOR CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT In an AD converter-equipped temperature sensor circuit, at start of operation, a successive approximation type AD converter converts an analog voltage having temperature dependence received from a voltage generation circuit, to determine all bits of the converted digita... | 03/22/2012 |
| 20120025062 | HYBRID ANALOG-TO-DIGITAL CONVERTER, AN IMAGE SENSOR AND A METHOD FOR PROVIDING A PLURALITY OF DIGITAL SIGNALS A hybrid analog-to-digital converter includes a plurality of converting circuits. Each converting circuit is configured to provide a digital signal based on an analog input signal by performing a successive approximation conversion to obtain, as a result of the successi... | 02/02/2012 |
| 20120026027 | A/D CONVERTER USING ISOLATION SWITCHES In an A/D converter, isolation switches are used between the capacitors and the conversion switches. The conversion switches are those switches used to selectively couple the plates of the binary weighted capacitors to either Vref or 0 volts during the A/D conversion pr... | 02/02/2012 |
| 20110298645 | Shared Operational Transconductance Amplifier Pipelined ADC Incorporating a Sample/Hold Amplifier and Multiple MDAC Stages A single operational transconductance pipelined ADC incorporating a sample/hold amplifier and multiple MDAC stages. An input signal is sampled on input signal sampling capacitors, and then coupled around an operational transconductance amplifier (OTA) so that the output... | 12/08/2011 |
| 20110148684 | SUCCESSIVE APPROXIMATION ANALOG-TO-DIGITAL CONVERTER There is provided a successive approximation analog-to-digital converter including only minimal capacitors to perform an analog-to-digital conversion operation, thereby making it possible to have very strong process change resistance characteristics while having reduced... | 06/23/2011 |
| 20110102220 | PIPELINE ANALOG-TO-DIGITAL CONVERTER Provided is a pipeline analog-to-digital converter (ADC) without a front-end sample-and-hold amplifier (SHA). To minimize a sampling error occurring between a flash ADC and a multiplying digital-to-analog converter (MDAC) of a first sub-ranging ADC due to removal of a f... | 05/05/2011 |
| 20110068966 | Asynchronous Sigma Delta Analog to Digital Converter Using a Time to Digital Converter This disclosure relates to analog to digital conversion using irregular sampling. A method may include combining an analog signal with a feedback signal into a combined signal, filtering the combined signal using a digital noise shaping filter into a combined noise shap... | 03/24/2011 |
| 20110043400 | SUCCESSIVE APPROXIMATION TYPE AD CONVERTER AND TEST METHOD THEREOF A successive approximation type analog-to-digital (AD) converter includes: a converting and comparing section configured to compare an input analog signal and an analog signal as an analog conversion result of a digital data; and a successive approximation section confi... | 02/24/2011 |
| 20100309038 | ANALOG TO DIGITAL CONVERTER An analog to digital converter is provided. The converter comprises a first stage, an adjustment unit and a digital error correction logic. The first stage has a first sensing range and receives a first voltage to generate a first digital code. The adjustment unit adjus... | 12/09/2010 |
| 20100289684 | ANALOG-DIGITAL CONVERTER CIRCUIT AND ANALOG-DIGITAL CONVERSION METHOD Provided is an analog-digital converter circuit including: a comparison unit that sequentially compares an analog input voltage with reference voltages, which sequentially vary, and outputs a comparison result as a digital value; a standard voltage generation unit that ... | 11/18/2010 |
| 20100207801 | A/D CONVERSION CIRCUIT AND A/D CONVERSION METHOD An A/D (analog-to-digital) conversion circuit includes an input signal selecting circuit configured to output voltage signals of different signal levels in response to control signals in an adjustment mode before A/D conversion of an analog signal in a practical mode; a... | 08/19/2010 |
| 20100164779 | CHARGE-DOMAIN PIPELINED CHARGE-REDISTRIBUTION ANALOG-TO-DIGITAL CONVERTER A charge-domain pipeline of at least two stages is provided. Each stage comprises a charge-storage node, a charge-transfer circuit for conveying charge from said charge-storage node out of said stage, a charge-control capacitor connected to said charge-storage node and ... | 07/01/2010 |
| 20100164768 | PROVIDING DIGITAL CODES REPRESENTING ANALOG SAMPLES WITH ENHANCED ACCURACY WHILE USING AN ADC OF LOWER RESOLUTION An aspect of the present invention improves accuracy of output codes generated by a lower resolution ADC. In an embodiment, a gain factor is determined by examining a strength of an input signal in analog form. The gain factor equals one if the strength is more than hal... | 07/01/2010 |
| 20100164778 | CIRCUIT WITH A SUCCESSIVE APPROXIMATION ANALOG TO DIGITAL CONVERTER During successive approximation analog to digital conversion a series of successive digital reference values is selected that converges towards a digital representation of an analog input signal. An analog reference signal is generated dependent on the successive digita... | 07/01/2010 |
| 20100156691 | Unified architecture for folding ADC A system, apparatus and method for a folding analog-to-digital converter (ADC) are described. The general architecture of the folding ADC includes an array (1-N) of cascaded folding amplifier stages, a distributed array of fine comparators, and an encoder. Each f... | 06/24/2010 |
| 20100149010 | PIPELINED AD CONVERTER A pipelined AD converter (1) includes a plurality of conversion stages (11, 11, . . . ). In each of the conversion stages, an analog-to-digital conversion circuit (101) converts an input voltage (Vin) from the preceding stage to a digital code (Dout... | 06/17/2010 |
| 20100097252 | CALIBRATION DEVICE AND METHOD THEREOF FOR PIPELINED ANALOG-TO-DIGITAL CONVERTER A calibration device comprises a comparison unit, a counting unit, a memory, and a compensation circuit. A residue of a sub analog-to-digital converter is compared with a first and a second voltage by the comparison unit for generating a comparison result. A number of t... | 04/22/2010 |
| 20100085225 | SUCCESSIVE APPROXIMATION ADC WITH BINARY ERROR TOLERANCE MECHANISM A successive approximation ADC is disclosed. A comparator receives and compares a sampled input signal and an output of a DAC. Non-binary successive approximation register (SAR) control logic controls sampling of the input signal and controls a sequence of comparisons b... | 04/08/2010 |
| 20100066583 | MULTI-STAGE SUCCESSIVE APPROXIMATION REGISTER ANALOG-TODIGITAL CONVERTER AND ANALOG-TO-DIGITAL CONVERTING METHOD USING THE SAME A multi-stage Successive Approximation Register Analog-to-Digital Converter (SAR ADC) and an analog-to-digital converting method using the same are provided. The multi-stage SAR ADC connects small-size and low-power SAR ADCs in multiple stages, thereby reducing a whole ... | 03/18/2010 |
| 20100060503 | SUCCESSIVE APPROXIMATION TYPE A/D CONVERTER, METHOD OF CONTROLLING SUCCESSIVE APPROXIMATION TYPE A/D CONVERTER, SOLID-STATE IMAGING DEVICE, AND IMAGING APPARATUS A successive approximation type A/D converter includes: a reference signal generating section generating a reference signal; a comparator comparing an analog signal input thereto with the reference signal and converting the analog signal into a digital signal; and a con... | 03/11/2010 |
| 20100019946 | Amplifier networks with controlled common-mode level and converter systems for use therewith Effective control of the common-mode level of amplifiers is obtained through control structures (both closed-loop and open-loop structures) which are directed to various amplifier functions such as the reduction of amplifier loading, accurate sensing of common-mode leve... | 01/28/2010 |
| 20100013684 | AD converter and AD conversion method An exemplary object of the present invention is to achieve both of high-speed operation by parallel processing and a simple configuration by sequential comparison processing, so as to realize high accuracy of AD conversion processing. An AD converter according to the pr... | 01/21/2010 |
| 20090309778 | SUCCESSIVE APPROXIMATION TYPE ANALOG/DIGITAL CONVERTER AND OPERATION METHOD OF SUCCESSIVE APPROXIMATION TYPE ANALOG/DIGITAL CONVERTER In a successive approximation-type A/D converter, an S/H circuit samples and holds an analog input voltage. A D/A converter section receives current digital data corresponding to a current search voltage range, and outputs a plurality of comparison voltages based on the... | 12/17/2009 |
| 20090289827 | FRONT-END SAMPLING TECHNIQUE FOR ANALOG-TO-DIGITAL CONVERTERS Embodiments of the present invention provide a pipeline ADC front-end sampling structure that provides a continuous time input signal to a flash comparator for sampling. By providing a continuous time input signal to the flash comparator, no delay is introduced from the... | 11/26/2009 |
| 20090243907 | Analog-to-digital converter A lookahead pipelined ADC architecture uses open-loop residue amplifiers with calibration. This approach is able to achieve a high-speed, high-accuracy ADC with reduced power consumption. In one aspect, an ADC pipeline unit includes a plurality of lookahead pipeline sta... | 10/01/2009 |
| 20090201189 | FLASH A/D CONVERTER A flash analog-to-digital converter comprising a resistive reference ladder, a set of comparators for comparing the analog input signal with the reference voltages of the ladder to provide a digital code representing a coarse quantization of the input signal, a set of s... | 08/13/2009 |
| 20090195427 | A/D converter A full-flash A/D converter, including a differential amplifier circuit row and a voltage comparison circuit row, has an adjusting circuit 107 for making the output dynamic range of differential amplifier circuits accurately fall within the input dynamic range of ... | 08/06/2009 |
| 20090195433 | MULTISTAGE AMPLIFIER AND A METHOD OF SETTLING THE MULTISTAGE AMPLIFIER A method of settling an amplifier and a multistage amplifier are provided. To settle an amplifier, a plurality of clock signals are, respectively, applied to preset switches, each of which is placed between amplifiers connected in cascade, to open the preset switches se... | 08/06/2009 |
| 20090189798 | ENCODER FOR A PIPELINED ANALOG-TO-DIGITAL CONVERTER In a pipelined analog-to-digital (AD) converter, if logically incongruent signals S1 and S2 are output from an AD converter section of a converter stage of the AD converter, a digital-to-analog converter (DAC) section is to be prevented from erroneously op... | 07/30/2009 |
| 20090140904 | INCREASING THE DYNAMIC RANGE OF PULSE WIDTH MODULATION IN ANALOG TO DIGITAL CONVERTERS This disclosure relates to adjusting a limit cycle frequency of a pulse width modulation in an analog to digital converter as a function of an input signal level to increase dynamic range.... | 06/04/2009 |
| 20090128389 | Multi-bit Per Stage Pipelined Analog to Digital Converters Various embodiments of the present invention provide systems and circuits that provide for conversion of analog signals to digital signals. For example, various embodiments of the present invention provide pipelined analog to digital converters. Such converters include ... | 05/21/2009 |
| 20090109079 | SUCCESSIVE APPROXIMATION ANAGLOG-TO-DIGITAL CONVERTER WITH INBUILT REDUNDANCY The method and system for converting an analog value into a digital equivalent using a plurality of conversion engines are disclosed. In one embodiment the plurality of conversion engines comprise N DACs associated with M comparators, wherein M is substantially greater ... | 04/30/2009 |
| 20090073021 | CASCADE COMPARATOR AND CONTROL METHOD THEREOF A cascade comparator and a control method thereof are provided. By applying multi-phase clock signals to a plurality of comparators when the plurality of comparators are cascaded together so that each comparator is regenerated before the preceding comparator is reset, a... | 03/19/2009 |
| 20090040088 | A/d Converter and A/D Conversion Method In an A/D converter provided with an A/D converter circuit 101 for operationally amplifying an input signal and outputting an amplified signal, the A/D converter circuit 101 includes an initial value setting circuit 4a in addition to an ampli... | 02/12/2009 |
| 20090040089 | A-TO-D CONVERTER A successive approximation type A-to-D converter includes a cyclic D-to-A converter (11), a comparator (12) for comparing an analog value with an output value of the D-to-A converter (11), and memory means (13) for sequentially storing an out... | 02/12/2009 |
| 20090002215 | Sample and Hold Circuit for a Current Mode Pipelined Analog-to-Digital Converter A pipelined current mode analog-to-digital converter, including: a plurality of stages each having a first sample and hold circuit configured to receive an analog signal having a current; the sample and hold circuit having at least first and second outputs; the first ou... | 01/01/2009 |
| 20080266163 | Analog-to-Digital Converter with Reduced Metastable Errors In an analog-to-digital converter, an analog-to-digital conversion stage comprising a comparator and an analog residual signal generator. The comparator is operable to compare an analog input signal or a sample of the analog input signal with a threshold to generate a b... | 10/30/2008 |
| 20080218396 | Charge-domain pipelined charge-redistribution analog-to-digital converter A single-ended charge-domain pipeline of at least two stages is provided. Each stage comprises a charge-storage node, a charge-transfer circuit for conveying charge from said charge-storage node out of said stage, a charge-control capacitor connected to said charge-stor... | 09/11/2008 |
| 20080198058 | PIPELINED CONVERTER The invention relates to an apparatus comprising a pipelined converter, such as a pipelined ADC. The pipelined converter has a first set of stages and a second set of stages. A clocking circuit is configured to generate a plurality of clocking signals for the pipelined ... | 08/21/2008 |
