Abstract: A Compute-In-Memory (CIM) device according to the present disclosure includes first to fourth global bit lines (GBLs) each configured to be divided into two sub-global bit lines having the same capacitance; first to fourth switches each configured to be connected between the sub-global bit lines of each of the first to fourth global bit lines; and a switching circuit configured to generate a differential input voltage for a differential Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) by reflecting a corresponding bit position from an output voltage of each of the first to fourth global bit lines, the differential SAR ADC being configured to receive the differential input voltage to generate a digital signal.

Abstract: In a display system comprising a first display device and a second display device according to an embodiment of the present invention, the first display device determines whether the second display device is attached, and when it is determined that the second display device is attached, the second display device can display, on the basis of a first content image being displayed, a second content image related to the first content image.

Abstract: Provided are a computing-in-memory (CIM) device and a neural network device with a computational layer. The CIM device includes an input conversion module configured to receive signed input data and convert the signed input data into unsigned input data, a CIM including multiple memory cells for separately storing weights and configured to receive the unsigned input data, perform a multiply-accumulate (MAC) operation between the unsigned input data and the stored weights, and output output data, and an output conversion module configured to output compensated output data by compensating the output data for a computational error. Accordingly, it is possible to efficiently perform neural network computation on a signed multibit input while minimizing an increase in size, computational complexity, and structural changes.

Abstract: The present invention relates to a wireless charging method and apparatus and system therefor. A wireless power transmission apparatus for wirelessly transmitting power to a wireless power receiving apparatus according to one embodiment of the present invention comprises: a power transmission unit for sending a power signal through a transmission coil; a power conversion unit for converting an intensity of the power applied from the outside and transferring the converted power to the power transmission unit; a communication unit for receiving a packet from the wireless power receiving apparatus; and a control unit for controlling power on the basis of a control error value received through the communication unit, wherein, when an unexpected packet is received in a power transmission stage, the control unit may control power by applying a predetermined offset to the control error value. Thus, the present invention has an advantage of being able to minimize the interruption of wireless charging.

Abstract: A wireless power transmitter having a plurality of transmission coils is disclosed. The present transmitter comprises: first to Nth coils; and a control unit for transmitting, to a wireless power receiver, a first sensing signal through the first to Nth coils, and adjusting transmission orders of the first to Nth coils for transmitting a second sensing signal, on the basis of the signal strength of a received first signal strength indicator when the first signal strength indicator corresponding to the first sensing signal is received, wherein the control unit can transmit, to the receiver, the second sensing signal through the first to Nth coils on the basis of the adjusted transmission orders. Therefore, device efficiency and user convenience can be improved.

Abstract: A wireless power transmitter having a plurality of transmission coils is disclosed. The present transmitter comprises: first to Nth coils; and a control unit for transmitting, to a wireless power receiver, a first sensing signal through the first to Nth coils, and adjusting transmission orders of the first to Nth coils for transmitting a second sensing signal, on the basis of the signal strength of a received first signal strength indicator when the first signal strength indicator corresponding to the first sensing signal is received, wherein the control unit can transmit, to the receiver, the second sensing signal through the first to Nth coils on the basis of the adjusted transmission orders. Therefore, device efficiency and user convenience can be improved.

Abstract: A wireless power transmitter according to an embodiment comprises: a power conversion unit for converting the strength of supplied power and outputs the same as a power signal; a transmission control unit for inspecting whether a wireless power receiver proceeds with charging in a no-load state without completing the charging, and according to the result of inspection, temporarily stopping the supply of the power signal to the wireless power receiver and resuming the supply; and a transmission coil end which has at least one transmission coil for transmitting the power signal to the wireless power receiver.

Abstract: The present invention relates to complex oxides used as raw materials for fine ceramic materials, and more particularly to complex oxide precursors in the form of a fine powder which are readily converted to complex oxides with low energy and also a process for preparing the same.