A method can include modulating an amplified analog signal into a digital data stream, filtering the digital data stream with a first filter, generating gain control values associated with amplified analog signal based on the filtered data stream with the first filter and filtering the digital data stream with a second filter, and generating output digital values associated with the amplified analog signal based on the filtered data stream with the second filter. Corresponding systems and devices are also disclosed.

A method can include modulating an amplified analog signal into a digital data stream, filtering the digital data stream with a first filter, generating gain control values associated with amplified analog signal based on the filtered data stream with the first filter and filtering the digital data stream with a second filter, and generating output digital values associated with the amplified analog signal based on the filtered data stream with the second filter. Corresponding systems and devices are also disclosed.

Disclosed are a readout circuit, a signal quantizing method, a signal quantizing device, and a computer device. The readout circuit includes: a signal sampler, including a plurality of channels; a plurality of integrators, connected to the plurality of channels and having a one-to-one releationship with the plurality of channels; a signal processor, including a first operational amplifier, a sampling input of the first operational amplifier being connected to outputs of the plurality of integrators, respectively; and an analog-digital converter. An input of the analog-digital converter is connected to an output of the first operational amplifier.

Disclosed are an analog-to-digital conversion circuit, an analog-to-digital conversion device, and a digital x-ray imaging system. The analog-to-digital conversion circuit includes a first reference voltage source, a second reference voltage source, a first analog-to-digital converter connected to the first reference voltage source, a second analog-to-digital converter connected to the second reference voltage source, a connecting circuit connected to the first analog-to-digital converter and the second analog-to-digital converter, respectively, and a current source having negative temperature coefficient configured to be connected to the first reference voltage source and the second reference voltage source, respectively.

The present invention relates to a device and a method for measurement of electrical signals in an industrial automation and control system. The device comprises an input circuit, configured to receive an electrical input signal (100), scale the electrical input signal by a scaling factor and to set the scaling factor according to a scaling signal (110), an Analog-to-Digital Converter, ADC (220), which is electrically connected to the input circuit, wherein the ADC is configured to convert the scaled electrical input signal (103) into an intermediate digital signal (120), and a first signal path (211), connected to an digital end of the ADC, configured to create the scaling signal (110) and to send the scaling signal (110) to the input circuit, wherein, based on the intermediate digital signal of a sample period and the scaling factor of the sample period, the scaling factor for a subsequent sample period is set.

It is an object of the present technology to provide an image sensor capable of reducing crosstalk in an AD conversion unit. The image sensor includes: capacitors in an even-numbered column region; and a capacitor in an odd-numbered column region disposed facing the capacitors in the even-numbered column region with different areas.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver device may identify an analog to digital converter (ADC) clipping rate for one or more measurement windows. The receiver device may modify, based at least in part on a determination that the ADC clipping rate does not satisfy a threshold, a low noise amplifier (LNA) gain value to be used by the receiver device. The receiver device may receive a signal using the modified LNA gain value. Numerous other aspects are provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver device may identify an analog to digital converter (ADC) clipping rate for one or more measurement windows. The receiver device may modify, based at least in part on a determination that the ADC clipping rate does not satisfy a threshold, a low noise amplifier (LNA) gain value to be used by the receiver device. The receiver device may receive a signal using the modified LNA gain value. Numerous other aspects are provided.

A Wi-Fi wake-up receiver that receives wake-up signals encoded using orthogonal frequency division multiplexing based on-off keying (OFDM-OOK) modulation includes receiver circuitry having analog envelope detector circuitry configured to non-linearly down-convert an input signal and provide an energy signal for sampling by an analog-to-digital converter (ADC). A wake-up signal for waking up a main radio in a Wi-Fi device can be based on the digitized energy signal. The receiver circuitry can further include, upstream of the envelope detector circuitry and the ADC in the signal chain, an analog mixer for linearly down-converting the input signal and a low-pass filter for attenuating adjacent-channel interferer (ACI) signals prior to the non-linear down-conversion by the envelope detector circuitry. Sampling of the energy signal rather than the higher-bandwidth input signal yield power savings in the ADC and associated circuitry such as a modem.

A low power high bandwidth analog to digital converter system is disclosed. A first analog signal input receives an input signal. A first programmable gain amplifier receives the input signal. An analog to digital converter (ADC) is coupled to the output of the first programmable gain amplifier and samples the input signal for conversion to a digital signal. A controller is coupled to the ADC and the first programmable gain amplifier. The controller selects and enables either a reduced power mode or a power up mode for the first programmable gain amplifier and the ADC. The power up mode is selected and enabled when the input signal is to be sampled to operate the first programmable gain amplifier and the ADC to sample the input signal.