49 results about "Differential nonlinearity" patented technology

A digital-to-analog converter improves differential non-linearity by performing a calibration of at least one weighted cell in response to a calibration command. The digital-to-analog converter includes a group of weighted cells, a tunable cell having a tunable weight controlled by a tuning word, and a calibration cell to generate a combined output signal in response to a digital input word, the calibration command, and a calibration sequence. The digital-to-analog converter also includes a calibration circuit configured to sample and subsequently process the combined output signal to establish the tuning word in accordance with the calibration command and the calibration sequence.

A differential recurrent neural network (RNN) is described that handles dependencies that go arbitrarily far in time by allowing the network system to store states using recurrent loops without adversely affecting training. The differential RNN includes a state component for storing states, and a trainable transition and differential non-linearity component which includes a neural network. The trainable transition and differential non-linearity component takes as input, an output of the previous stored states from the state component along with an input vector, and produces positive and negative contribution vectors which are employed to produce a state contribution vector. The state contribution vector is input into the state component to create a set of current states. In one implementation, the current states are simply output. In another implementation, the differential RNN includes a trainable OUT component which includes a neural network that performs post-processing on the current states before outputting them.

The invention discloses a current rudder DAC buck-boost correction method and circuit, wherein the method includes: image value acquisition: taking the code value N to be converted as the central value to obtain n pairs of code values, and the n pair of code values ​​are A1 to An and B1 to Bn, wherein, the code value A1 to An is greater than the code value N, the code value B1 to Bn is less than the code value N, n is a positive integer, and the mean value of every pair of code values ​​is N; within a certain time T, from the code value B1 To Bn, N, and A1 to An, take out any code value without repetition and output it to the digital-to-analog conversion unit until all 2n+1 code values ​​are taken, and each code value maintains the same time; output adjustment: the adjustment unit adjusts all The output of the digital-to-analog conversion unit is adjusted to stabilize the output voltage of the buck-boost circuit. According to the current rudder DAC buck-boost correction method of the above-mentioned technical solution, the influence caused by the mismatch of a single code value is reduced through the round-robin of the mirror code value, the differential nonlinearity of the digital-to-analog conversion is reduced, and the monotonicity of the buck-boost voltage regulation output is improved. sex.