Abstract: Power-on reset circuits and methods for providing a power-on reset signal are provided. A first branch is configured to receive the power supply voltage. The first branch comprises a first current generator configured to generate a first current having a positive relationship with a power supply voltage. A second branch receives the power supply voltage and comprises a second current generator that is configured to generate a second current. A relationship between the first and second currents indicates whether the power supply voltage exceeds a threshold voltage of the power-on reset circuit. A current comparator circuit compares the first current to the second current and generates an output based on the comparison. The power-on reset signal is asserted when the output indicates that the second current is greater than the first current.

Abstract: A system including transmission lines, read elements, and differential amplifiers. The read elements are connected in series. Each of the read elements is connected to a respective pair of the transmission lines. The differential amplifiers are connected respectively to the read elements via the transmission lines. The differential amplifiers are configured to amplify differential signals received from the respective pairs of the transmission lines.

Abstract: A system including a first transmission line, a second transmission line, a first element, a second element and a differential amplifier. The first element is configured to read a storage media to generate a read signal, where the first element is connected to the first transmission line. The second element is configured to detect interference and generate an interference signal, where the second element is connected to the second transmission line. The differential amplifier includes a first input and a second input, where the first input of the differential amplifier is connected to a the first transmission line and receives the read signal, and where the second input of the differential amplifier is connected to the second transmission line and receives the interference signal.

Abstract: A system including transmission lines, read elements, and differential amplifiers. The read elements are connected in series. Each of the read elements is connected to a respective pair of the transmission lines. The differential amplifiers are connected respectively to the read elements via the transmission lines. The differential amplifiers are configured to amplify differential signals received from the respective pairs of the transmission lines.

Abstract: A system including a first transmission line, a second transmission line, a first element, a second element and a differential amplifier. The first element is configured to read a storage media to generate a read signal, where the first element is connected to the first transmission line. The second element is configured to detect interference and generate an interference signal, where the second element is connected to the second transmission line. The differential amplifier includes a first input and a second input, where the first input of the differential amplifier is connected to a the first transmission line and receives the read signal, and where the second input of the differential amplifier is connected to the second transmission line and receives the interference signal.

Abstract: Apparatuses, circuitry, architectures, systems, methods, algorithms and software for performing automatic gain calibration on an input signal. The apparatuses and/or circuits generally include an amplifier, a filter, a comparator, and a controller. The amplifier is configured to receive a gain level signal and to amplify the input signal in accordance with the gain level signal to produce an amplified signal. The filter is configured to filter the amplified signal to produce a filtered signal. The comparator is configured to compare the filtered output to a threshold value and to produce a comparison signal in response thereto. The controller is configured to iteratively reset the filter and adjust the gain level signal in response to the comparison signal to select a gain level.