Abstract:
A computing device for performing a digital pulse-based crossbar operation and a method of operating the computing device. The computing device includes a plurality of input lines to which a pulse is selectively input in a sequential manner based on a corresponding input signal; a plurality of output lines crossing the input lines; a plurality of elements, each element being disposed at a cross point between a corresponding input line and a corresponding output line to transfer, to the corresponding output line, a pulse input to the corresponding input line in response to a corresponding weight being a first value; and a plurality of pulse counters, each pulse counter counting a number of pulses output from a corresponding output line.
Abstract:
A frequency calibrator includes an input signal generator configured to generate an input signal based on an oscillation signal and an external signal; a frequency difference extractor configured to extract, from the input signal, a frequency difference signal having a frequency corresponding to a frequency difference between an external frequency of the external signal and an oscillation frequency of the oscillation signal; a divider configured to generate a division signal by dividing a signal having the oscillation frequency by a division ratio; and a frequency tuner configured to tune the oscillation frequency of the oscillation signal based on a result of comparing the frequency difference signal to the division signal.
Abstract:
A radio frequency (RF) transceiver includes a first oscillator configured to generate a first oscillation frequency associated with an RF signal, a second oscillator configured to generate a second oscillation frequency associated with a clock frequency, a counter configured to generate a counter output signal using the first oscillation frequency and the second oscillation frequency, and a comparer configured to generate a digital output signal associated with the RF signal by comparing an output value of the counter output signal to a reference value.
Abstract:
A phase-locked loop (PLL) includes a counter configured to measure voltage-controlled oscillator (VCO) information of an oscillator during a mask time, and a frequency tuner configured to tune a frequency of the oscillator to a target frequency, based on a comparison result obtained by comparing the VCO information to target frequency information.
Abstract:
A processor-implemented method includes receiving an input vector comprising a plurality of channels, performing a first convolution operation by allocating first chunks, obtained by dividing the input vector, to a plurality of first in-memory computing (IMC) macros, and performing a second convolution operation by allocating second chunks obtained by dividing a result of the first convolution operation to a plurality of second IMC macros.
Abstract:
Provided is a computation method of a memory processor configured to perform an operation between a first vector including first elements and a second vector including second elements, the first elements including respective first bits and the second elements including respective second bits, the method performed by the memory processor including: applying, to single-bit operation gates, the respective first bits and the respective second bits; obtaining bit operation result sum values for the respective first and second elements based on bit operation results obtained using the single-bit operation gates; and obtaining an operation result of the first vector and the second vector based on the bit operation result sum value.
Abstract:
A multiply-accumulate (MAC) computation circuit includes: a bit-cell array configured to generate an analog output corresponding to a MAC operation result of an input signal; a first analog-to-digital conversion (ADC) circuit configured to determine an upper part of a digital output corresponding to the analog output; and a second ADC circuit configured to determine a lower part of the digital output based on a reference voltage corresponding to the upper part.
Abstract:
Disclosed is a near-field communication (NFC) system that includes an NFC supporting apparatus. The NFC supporting apparatus includes a dual coil and a first switch. The dual coil includes an NFC band coil and a radio frequency (RF) band coil. An RF amplitude modulation signal is generated at the RF band coil in response to a transmission from an implantable device. The first switch is configured to switch the NFC band coil based on the RF amplitude modulation signal. The NFC band coil is configured to generate an NFC amplitude modulation signal at an NFC band coil of an NFC reader in response to the first switch.
Abstract:
A frequency tuning apparatus includes: a frequency tuner configured to tune an oscillation frequency of an oscillator based on target information extracted from a mapping table in correspondence to a target frequency, and oscillation information collected from the oscillator; and a frequency compensator configured to compensate for a compensation error between the tuned oscillation frequency and the target frequency based on an offset table.
Abstract:
A receiver includes a low noise amplifier (LNA) configured to amplify an input RF signal using a first current supplied by a first current source, and a voltage controlled oscillator (VCO) for applying an oscillation frequency to the amplified signal by generating an oscillation signal using the first current.