Abstract: A transceiver includes a transmitter and a receiver connected to each other by a first line and a second line. The transmitter transmits signals having a first voltage range to the first line and the second line in a first mode, and transmits signals having a second voltage range smaller than the first voltage range to the first line and the second line in a second mode. The transmitter encodes an original payload in the second mode to generate a first payload, and transmits the clock training pattern and the first payload through the first line and the second line.

Abstract: A data receiver, which communicates with a data transmitter through a plurality of lanes, includes: a first reception unit which receives first data through a first lane; a second reception unit which receives second data through a second lane; and a detector which compares the first data and the second data to detect a skew between the first lane and the second lane. The first reception unit includes a first clock data recovery unit which recovers a first clock and first payload data from the first data. The first reception unit controls a loop speed of the first clock data recovery unit based on a skew level of the skew.

Abstract: Disclosed is a cover including a receiving portion having a space defined for receiving an electronic device, a covering portion, and a hinge portion connecting the receiving portion and the covering portion and allowing the covering portion to pivot. The covering portion includes, in a state in which the covering portion is pivoted in a specified direction about the hinge portion to at least partially cover the space, a light guiding member disposed on the first surface for guiding light, and an outer cover layer disposed on a second surface opposite to the first surface. In addition, various embodiments understood through the specification are possible.

Abstract: A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp including a plurality of gamma decoders which generates a plurality of global gamma voltages based on the gamma reference voltages; a decoder which selects one of the global gamma voltages according to the digital image data to generate the analog data signals; and a ramp controller which turns off at least some of the gamma decoders based on the digital image data.

Abstract: A semiconductor system may include a first semiconductor device and a second semiconductor device. The first semiconductor device compares a received signal with an original signal to generate a driving force control signal. The first semiconductor device also drives the original signal using a driving force in accordance with the driving force control signal to output an external transmission signal. The second semiconductor device receives the external transmission signal to generate a positive signal and a negative signal. The second semiconductor device also generates a restoration signal in response to the positive signal and the negative signal. The second semiconductor device additionally outputs the restoration signal as the external transmission signal to the first semiconductor device.

Abstract: A display device has a display area with a first area in which a fingerprint is recognized and a second area in which a fingerprint is not recognized, and a non-display area. A fingerprint sensing unit is disposed to overlap with the first area. A first pixel set is disposed to overlap with the first area, and a second pixel set is disposed to overlap with the second area, each set including a plurality of pixels. A first voltage signal is provided to the first pixel set as a variable frequency signal, and includes a first period during which the first voltage signal is a first frequency signal, a second period during which the first voltage signal is a second frequency signal having a lower frequency than the first frequency signal, and a third period during which the first voltage signal is the first frequency signal.

Abstract: A data driver includes: a signal generator which includes a staircase waveform gray voltage signal generator which generate a plurality of staircase waveform gray voltage signals using a lowest gamma reference voltage, a highest gamma reference voltage, and a plurality of gamma voltages having a magnitude between the lowest gamma reference voltage and the highest gamma reference voltage; and a channel driver which includes a decoder which output one staircase waveform gray voltage signal selected from the staircase waveform gray voltage signals, an output circuit which output a gray voltage corresponding to the selected staircase waveform gray voltage signal, and a reset unit which supplies one of the gamma voltages to the output circuit as a reset voltage.

Abstract: A buffer circuit configured to receive first and second input signals through first and second input transistors coupled to a first power voltage node, output a first output signal through a first output node and a second output signal through a second output node based on the first and second input signals. A load circuit is coupled among the first output node, the second output node, and a second power voltage node and a resistance value is adjusted based on at least one of the first and second output signals.

Abstract: A buffer circuit configured to receive first and second input signals through first and second input transistors coupled to a first power voltage node, output a first output signal through a first output node and a second output signal through a second output node based on the first and second input signals. A load circuit is coupled among the first output node, the second output node, and a second power voltage node and a resistance value is adjusted based on at least one of the first and second output signals.

Abstract: An upper limb exercise apparatus comprises a base, a frame, and a display mounted on the frame. The apparatus further comprises 5-bar linkage-type movable parts positioned on the display and including a first link and a second link. The first link comprises a 1-1 member having one end attached to the frame and being rotationally driven, and a 1-2 member having one end rotatably attached to the other end of the 1-1 member, the other end having attached thereto a handle for gripping. The second link comprises a 2-1 member having one end attached to the frame and being rotationally driven, and a 2-2 member having one end rotatably attached to the other end of the 2-1 member, the other end having attached thereto the handle and the other end of the 1-2 member. Series elastic actuators attached to the 1-1 member and the 2-1 member provide torque.

Abstract: A data driver includes: a signal generator which includes a staircase waveform gray voltage signal generator which generate a plurality of staircase waveform gray voltage signals using a lowest gamma reference voltage, a highest gamma reference voltage, and a plurality of gamma voltages having a magnitude between the lowest gamma reference voltage and the highest gamma reference voltage; and a channel driver which includes a decoder which output one staircase waveform gray voltage signal selected from the staircase waveform gray voltage signals, an output circuit which output a gray voltage corresponding to the selected staircase waveform gray voltage signal, and a reset unit which supplies one of the gamma voltages to the output circuit as a reset voltage.