A dynamic element method includes the following operations: summing up most significant bits of a digital code in a previous period and a pointer signal in the previous period, in order to generate a first signal; outputting the first signal to be an adjusted pointer signal according to a clock signal; and decoding the adjusted pointer signal to be control signals, in which the control signals are configured to set corresponding relations of components of a first digital to analog converter circuits and the most significant bits, in order to utilize the components to convert the most significant bits.

A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.

The embodiment applies a two-level coding/decoding technology using a spread spectrum code and an orthogonal code, whereby touch sensing can be robust against noise, a touch sensing time can be reduced, and touch sensitivity can be enhanced.

Provided, among other things, is an apparatus for digitally processing a discrete-time signal that includes: an input line for accepting an input signal, processing branches coupled to the input line, and an adder coupled to outputs of the processing branches. First and second lowpass filters, each having a frequency response with a magnitude that varies approximately with frequency according to a product of raised functions, are included within baseband processors in such processing branches.

A signal processing circuit includes: a plurality of A/D conversion units of a plurality of channels, each of plurality of the A/D conversion units including an amplifier configured to amplify an input analog signal and an A/D converter configured to convert an output signal from the amplifier into a digital signal, wherein at least one of operation parameters of the amplifier and the A/D converter is set individually for each of the plurality of channels.

A wide band continuous time delta-sigma modulator implements a time interleaved quantization processing operation. The modulator may provide for an inherent finite impulse response filtering in the feedback loop. Additionally, further finite impulse response filtering in each time interleaved feedback path may be provided.

A wide bandwidth ADC circuit that combines a resistive-input continuous-time sigma-delta ADC circuit with a second ADC circuit having a switched capacitor input. The combination of these two ADC circuits can achieve an easy-to-drive, alias free, wide bandwidth ADC that has excellent DC precision.

The embodiment applies a two-level coding/decoding technology using a spread spectrum code and an orthogonal code, whereby touch sensing can be robust against noise, a touch sensing time can be reduced, and touch sensitivity can be enhanced.

An analog-digital conversion apparatus includes: an analog-digital converter (ADC) included in an integrated circuit (IC) and configured to operate based on a sampling clock constituting a portion of a plurality of clocks; and a driver included in the IC and configured to operate based on another portion of the plurality of clocks, and produce a driving signal based on a digital value output from the ADC. The ADC and the driver are synchronized with each other based on an interrupt request (Irq) of the IC.

A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.