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| Number | Title | Issue Date |
| 8164497 | 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... | 04/24/2012 |
| 8159379 | Fast readout method and switched capacitor array circuitry for waveform digitizing A method relates to a technique for reducing the readout time of switched capacitor array circuitries. An implementation is a SCA chip capable of sampling 12 differential input channels at a sampling speed of 10 MSPS to 5 GSPS. The analog waveform can be stored in 1... | 04/17/2012 |
| 8130125 | A/D converter, solid-state image capturing apparatus and electronic information device The CMOS image sensor according to the present invention includes a sample hold section 3A1 for retaining an analog input signal voltage and a ramp wave signal voltage; and a comparing section 3A2 for taking an output from the sample hold... | 03/06/2012 |
| 8115662 | Sampler linearity by simultaneous derivative sampling A circuit for improved sampler linearity, in an analog to digital converter, by taking simultaneous analog samples of an input signal V(t) and its derivative, dV/dt. The correction can be implemented as a memoryless non-linear model in the analog, digital, or mixed ... | 02/14/2012 |
| 8044834 | Track-and-hold circuit and A/D converter A track-and-hold circuit includes a first sampling circuit that samples an analog input signal, a second sampling circuit that samples the analog input signal, the second sampling circuit and the first sampling circuit being connected in parallel, a first amplifier ... | 10/25/2011 |
| 8035539 | Signal sampling circuit A sampling circuit includes multiple sampling channels adapted to sample the signal in time-multiplexed fashion. Each sampling channel includes a respective track-and-hold circuit connected to a respective analogue to digital converter via a respective output switch... | 10/11/2011 |
| 8022848 | Dedicated sample and hold modules A method and system for sampling values. Multiple values are sampled concurrently. One of the values is stored while another one of the values is converted to a corresponding digital value by an analog-to-digital converter (ADC). Subsequently, the stored value is ma... | 09/20/2011 |
| 8018361 | Area-efficient analog-to-digital converter The present invention relates generally to analog-to-digital converters (ADCs). Embodiments of the present invention provide novel ADC architectures directed at reducing the overall ADC area and power consumption. Embodiments of the present invention may be used in ... | 09/13/2011 |
| 8018362 | A/D conversion circuit and test method An A/D conversion circuit includes a plurality of transmission paths that transmit signal voltages and reference voltages, and an A/D conversion unit that A/D converts voltages output from the transmission paths. Each of the plurality of transmission paths includes ... | 09/13/2011 |
| 8004435 | Discrete-time circuit To reduce a random noise power included in an analog input signal, a discrete-time circuit samples an inputted analog signal a plurality of number of times at different times respectively and performs averaging processing on sampling results, thus enabling to respon... | 08/23/2011 |
| 7969336 | Sample-hold circuit having spreading switch and analog-digital converter using same A sample-hold circuit includes a voltage-current converter, having a first input terminal pair to which an input differential signal is input and a first output terminal pair which outputs current according to the voltage of the input differential signal, a spreadin... | 06/28/2011 |
| 7948411 | Track and hold amplifiers and analog to digital converters A track and hold amplifier is provided. The track and hold amplifier includes an input node receiving an analog signal, a buffer coupled between a first node and an output node, a first switch coupled between the input node and the first node, a plurality of switchi... | 05/24/2011 |
| 7948410 | Multibit recyclic pipelined ADC architecture An apparatus is provided. The apparatus comprises a sample switch, a sampling capacitor, an amplifier, feedback branches, a second hold switch, an N-bit converter pair, a third hold switch, and an M-bit converter pair. The sample receives an input signal and is actu... | 05/24/2011 |
| 7940201 | Photonic analog to digital converter input sampler An input sampler interface to a track and hold circuit that decouples a high bandwidth (possibly optical domain) input signal from a lower bandwidth electrical domain of a subsequent track and hold circuit or other circuit. ... | 05/10/2011 |
| 7928873 | Analog-to-digital conversion circuit An analog-to-digital conversion circuit is provided. A voltage divider of the analog-to-digital conversion circuit regulates a voltage range received by a sample holder of analog-to-digital conversion circuit. Accordingly, a first half of the sample holder can use a... | 04/19/2011 |
| 7928874 | Analog to digital converter with dynamic power configuration In an embodiment, an analog to digital converter (ADC) has a dynamic power circuit. The ADC has a track-and-hold circuit with an output and a track mode. The ADC also has a comparator with an input. A preamplifier is coupled between the track-and-hold output and the... | 04/19/2011 |
| 7916052 | Compressed sensing characterization system and method A system for characterizing a compressed sensing apparatus is described which broadly includes a random vector generator for generating an input vector, a waveform generator in communication with the random vector generator for converting the input vector into an an... | 03/29/2011 |
| 7880651 | Sample and hold circuit and digital-to-analog converter circuit Disclosed is a sample and hold circuit including a differential circuit, an amplifier stage and a sampling voltage supply circuit. The differential circuit includes first and second capacitance elements, electric charge of which is distributed by a first switch, a f... | 02/01/2011 |
| 7868797 | Sample/hold circuit, and analog-to-digital converter There is disclosed a sample-and-hold circuit. An operational amplifier includes an inverting input terminal, a non-inverting input terminal, an inverting output terminal, and a non-inverting output terminal. First and second groups of capacitors are operated in firs... | 01/11/2011 |
| 7843371 | Error avoidance in data transmission using dynamic modification of analog sampling rates A method and apparatus for error avoidance in data transmission using dynamic modification of sampling rates. An embodiment of a method for transmission of data includes determining the transmission capacity for a transmission channel or channels. A sampling rate is... | 11/30/2010 |
| 7830286 | AD converter and data processing unit An AD converter includes an input circuit, an operation circuit and a bus interface. The input circuit is provided with a pull-down circuit, which is capable of pulling down an analog signal input side of a sample-hold circuit whether an analog signal is inputted or... | 11/09/2010 |
| 7817072 | Analog to digital converter with dynamic power configuration In an embodiment, an analog to digital converter (ADC) has a dynamic power circuit. The ADC has a track-and-hold circuit with an output and a track mode. The ADC also has a comparator with an input. A preamplifier is coupled between the track-and-hold output and the... | 10/19/2010 |
| 7796069 | Analog to digital converters An analog to digital converter (ADC) converts an analog signal to a digital signal. The ADC includes an input channel, a sampling circuit coupled to the input channel, an integrator coupled to the sampling circuit, and a feedback circuit coupled to the integrator. T... | 09/14/2010 |
| 7746253 | Semiconductor integrated circuit The present invention is directed to reduce offset error voltage in a signal source impedance of analog input signal voltage supplied to an input terminal due to input offset voltage of an operational amplifier in a sampling circuit or a multiplexer coupled to an in... | 06/29/2010 |
| 7746255 | A/D converter, method for adjusting analog signal therein, and method for converting analog signal into digital signal An analog-to-digital converter includes a sample-and-hold amplifier (SHA), a plurality of stages of analog-to-digital converting (ADC) units and an adjustment circuit. The SHA samples an analog input signal. The ADC units serially converts the analog input signal sa... | 06/29/2010 |
| 7746254 | Sample and hold circuit, multiplying D/A converter having the same, and A/D converter having the same A sample and hold circuit includes an op-amp, inverting-side capacitors, and non-inverting-side capacitors paired with the inverting-side capacitors. At least one capacitor pair serves as a feedback capacitor in a holding phase. A total capacitance of the inverting-... | 06/29/2010 |
| 7741984 | Track and hold amplifiers and analog to digital converters A track and hold amplifier is provided. The track and hold amplifier includes an input node receiving an analog signal, a buffer coupled between a first node and an output node, a first switch coupled between the input node and the first node, a plurality of switchi... | 06/22/2010 |
| 7733252 | Method and apparatus for delay and combining circuitry A system for signal processing is provided. A sampling delay system generates a plurality of sampling delay values. A plurality of programmable delays each receives one of the sample delay values. A plurality of sample and hold units, each coupled to one of the prog... | 06/08/2010 |
| 7724166 | A/D converter An apparatus is provided. The apparatus comprises a sample and hold circuit, a converter, and an adjustable current circuit. The sample and hold circuit is adapted to receive an analog input signal and to output an amplified signal. The converter is coupled to the s... | 05/25/2010 |
| 7576668 | Reducing the time to convert an analog input sample to a digital code in an analog to digital converter (ADC) A stage of a pipeline ADC which uses separate pairs of sampling network and amplifier (in a sample and hold circuit (SHA)) to provide inputs to quantizer (which generates a sub-code) and a switched capacitor network (implementing a DAC, a subtractor and amplificatio... | 08/18/2009 |
| 7545296 | Interleaved track and hold circuit The invention relates to an interleaved track and hold circuit for tracking and holding a value of a continuous input signal and to provide discrete values thereof, wherein the circuit comprises a first and a second stage. To avoid tones caused by differences in the... | 06/09/2009 |
| 7541954 | Touch control apparatus and analog-to-digital converting apparatus and method thereof Disclosed are an analog-to-digital converting apparatus, an analog-to-digital converting method and a touch control apparatus adapted to convert a divided voltage generated according to a power voltage and a ground voltage. The analog-to-digital converting apparatus... | 06/02/2009 |
| 7515076 | Method and apparatus for reducing switching noise in a system-on-chip (SoC) integrated circuit including an analog-to-digital converter (ADC) A method and apparatus for reducing switching noise in a system-on-chip (SoC) integrated circuit including an analog to digital converter (ADC) provides for reduced noise in the ADC conversions. Sampling circuits of the ADC are operated by sampling clock signals and... | 04/07/2009 |
| 7498962 | Analog-to-digital converter with low power track-and-hold mode A method for converting analog data to digital data includes operating an analog-to-digital data converter in a tracking mode to sample an input signal and in a convert mode to convert the sampled input signal after sampling to a digital signal. The analog-to-digita... | 03/03/2009 |
| 7471222 | Providing input signal through a sample and hold circuit with reduced distortion According to an aspect of the present invention, samples of an input signal are provided with reduced distortion, when the input signal is received from a lead terminal offering lead inductance on an input path. Such a feature is achieved by charging a energy storag... | 12/30/2008 |
| 7471221 | Analog/digital converter and program therefor An analog-to-digital conversion apparatus includes an interleaving unit operable to align the digital data respectively output from the plurality of analog-to-digital conversion units; and a correction arithmetic unit operable to correct a data value error of a data... | 12/30/2008 |
| 7463174 | Compressive sampling and signal inference An optical signal is compressively sampled. An optical component with a plurality of transmissive elements and a plurality of opaque elements is created. The location of the plurality of transmissive elements and the plurality of opaque elements is determined by a t... | 12/09/2008 |
| 7456764 | Analog to digital converter with dynamic power configuration In an embodiment, an analog to digital converter (ADC) has a dynamic power circuit. The ADC has a track-and-hold circuit with an output and a track mode. The ADC also has a comparator with an input. A preamplifier is coupled between the track-and-hold output and the... | 11/25/2008 |
| 7440491 | Ultra-wideband communications system devices System for ultra-wideband communications providing high data rates over an extended operating range in the presence of interferers. A preferred embodiment comprises an ultra-wideband (UWB) device that makes use of a portion of the UWB frequency range to help provide... | 10/21/2008 |
| 7439889 | AD converter The ΔΣ AD converter includes: a sampling section for sampling an input signal at each cycle Ts; an AD conversion section for performing AD conversion of the input signal; a DA conversion section for performing DA conversion of an output of the AD conversion sectio... | 10/21/2008 |
