Techniques for encoding data are described herein. The method includes receiving a block payload at a physical layer to be transmitted via a data bus. The method includes establishing a block header comprising an arrangement of bits, the block header defining two block header types, wherein a hamming distance between block header types is at least four.

A method for differentiator-based compression of digital data includes (a) multiplying a tap-weight vector by an original data vector to generate a predicted signal, the original data vector comprising N sequential samples of an original signal, N being an integer greater than or equal to one, (b) using a subtraction module, subtracting the predicted signal from a sample of the original signal to obtain an error signal, (c) using a quantization module, quantizing the error signal to obtain a quantized error signal, and (d) updating the tap-weight vector according to changing statistical properties of the original signal.

Examples are disclosed that relate to reading stored data. The method comprises obtaining a representation of a measurement performed on a data-storage medium, the representation being based on a previously recorded pattern of data encoded in the data-storage medium in a layout that defines a plurality of data locations. The method further comprises inputting the representation into a data decoder comprising a trained machine-learning function, and obtaining from the data decoder, for each data location of the layout, a plurality of probability values, wherein each probability value is associated with a corresponding data value and represents the probability that the corresponding data value matches the actual data value in the previously recorded pattern of data at a same location in the layout.

Examples are disclosed that relate to reading stored data. The method comprises obtaining a representation of a measurement performed on a data-storage medium, the representation being based on a previously recorded pattern of data encoded in the data-storage medium in a layout that defines a plurality of data locations. The method further comprises inputting the representation into a data decoder comprising a trained machine-learning function, and obtaining from the data decoder, for each data location of the layout, a plurality of probability values, wherein each probability value is associated with a corresponding data value and represents the probability that the corresponding data value matches the actual data value in the previously recorded pattern of data at a same location in the layout.

The present disclosure describes aspects of pulse-based writing for magnetic storage media. In some aspects, a pulse-based writer of magnetic storage media determines that a string of data bits having a same polarity corresponds to a magnet longer than a threshold associated with a magnetic media writer. The pulse-based writer inserts, into the string of data bits, a transition to a polarity opposite to the same polarity of the string of data bits. The string of data bits including the inserted transition is then transmitted to the magnetic media writer to cause a write head of the writer to pulse while writing the magnet to magnetic storage media. Various aspects may also implement a control signal to mask a transition or control polarity of the magnetic media writer. By so doing, magnets may be written to the magnetic storage media more efficiently or with less distortion to neighboring tracks.

Some instances of a memory device include a memory die having an array of memory cells including a plurality of banks. In some cases, the memory die further includes a first error correcting code (ECC) circuit coupled with a first bank of memory cells, where the first ECC circuit is configured to perform operations associated with a first access operation (e.g., write operation) of the first bank of memory cells. In some examples, the memory die further includes a second ECC circuit coupled with the first bank of memory cells, where the second ECC circuit is configured to perform ECC operations associated with a second access operation (e.g., read operation) of the first bank. In some cases, the first ECC circuit is located under the footprint of the array and the second ECC circuit is located outside the footprint of the array.

Superconducting circuits for processing input signals are described. An example superconducting circuit includes a first portion configured to receive an input signal having a data pattern represented by edge transitions in the input signal. The superconducting circuit further includes a second portion configured to provide an output signal, where the superconducting circuit is configured to, without applying a direct-current (DC) offset to the input signal, output the output signal corresponding to the edge transitions such that the output signal is substantially representative of the data pattern despite not applying the DC offset to the input signal.

Superconducting circuits for processing input signals are described. An example superconducting circuit includes a first portion configured to receive an input signal having a data pattern represented by edge transitions in the input signal. The superconducting circuit further includes a second portion configured to provide an output signal, where the superconducting circuit is configured to, without applying a direct-current (DC) offset to the input signal, output the output signal corresponding to the edge transitions such that the output signal is substantially representative of the data pattern despite not applying the DC offset to the input signal.

The present disclosure describes aspects of pulse-based writing for magnetic storage media. In some aspects, a pulse-based writer of magnetic storage media determines that a string of data bits having a same polarity corresponds to a magnet longer than a threshold associated with a magnetic media writer. The pulse-based writer inserts, into the string of data bits, a transition to a polarity opposite to the same polarity of the string of data bits. The string of data bits including the inserted transition is then transmitted to the magnetic media writer to cause a write head of the writer to pulse while writing the magnet to magnetic storage media. Various aspects may also implement a control signal to mask a transition or control polarity of the magnetic media writer. By so doing, magnets may be written to the magnetic storage media more efficiently or with less distortion to neighboring tracks.

Methods, systems, and devices for error correction on a memory device are described. Examples may include a memory die having an array of memory cells including a plurality of banks. The memory die may further include a first error correcting code (ECC) circuit coupled with a first bank of memory cells, where the first ECC circuit is configured to perform operations associated with a first access operation (e.g., write operation) of the first bank of memory cells. The memory die may further include a second ECC circuit coupled with the first bank of memory cells, where the second ECC circuit is configured to perform ECC operations associated with a second access operation (e.g., read operation) of the first bank. In some cases, the first ECC circuit may be located under the footprint of the array and the second ECC circuit may be located outside the footprint of the array.