Abstract: An on-chip inductor includes a semiconductor substrate, a plurality of insulating layers stacked over the semiconductor substrate, and first, second and third spiral-shaped coil patterns. The first, second and third spiral-shaped coil patterns are inductively coupled to each other and sequentially disposed on respective layers among the plurality of insulating layers. Further, the first, second and third spiral-shaped coil patterns have respective first ends overlapping each other. The on-chip inductor further includes a first via connecting the respective first ends of the first and second spiral-shaped coil patterns to each other, and a second via connecting the respective first ends of the second and third spiral-shaped coil patterns to each other, where the first and second vias overlap each other.

Abstract: A cooking apparatus including a cooking chamber configured to accommodate food, a camera configured to photograph inside of the cooking chamber, a communication interface, a memory configured to store a cooking method, and a processor configured to, based on food being selected, drive the cooking chamber based on a cooking method corresponding to the selected food, control the camera to photograph the food inside the cooking chamber, and control the communication interface to transmit a photographed image of the food to a user terminal device. The processor is configured to, based on a first feedback related to the photographed image being received, provide a plurality of images for selecting additional cooking states for the food to the user terminal device, and based on a second feedback related to the photographed image being received, provide a plurality of menus for analyzing a cause of a cooking state of the food to the user terminal device.

Abstract: A data driver which drives a display panel including a data line, a gate line and a common voltage line. The data driver includes a digital-to-analog converter configured to convert a data signal to a data voltage and an output buffer configured to amplify the data voltage. The output buffer includes an output channel through which an amplified data voltage is output to the data line and a dummy channel through which a feedback voltage corresponding to a common voltage from the common voltage line is received.

Abstract: A data driver which drives a display panel including a data line, a gate line and a common voltage line. The data driver includes a digital-to-analog converter configured to convert a data signal to a data voltage and an output buffer configured to amplify the data voltage. The output buffer includes an output channel through which an amplified data voltage is output to the data line and a dummy channel through which a feedback voltage corresponding to a common voltage from the common voltage line is received.

Abstract: A variable bandwidth, distributed amplifier circuit includes an input transmission line; an output transmission line; and a plurality of amplifier cells having a respective plurality of cell inputs distributed along the input transmission line and cell outputs distributed along said output transmission line. Each amplifier cell comprises a cascode amplifier having an input transistor, an output transistor, and a variable impedance device in a circuit branch coupled to a gate of the output transistor. The impedance of the variable impedance device is responsive to a variable bias control signal.

Abstract: A variable bandwidth, distributed amplifier circuit includes an input transmission line; an output transmission line; and a plurality of amplifier cells having a respective plurality of cell inputs distributed along the input transmission line and cell outputs distributed along said output transmission line. Each amplifier cell comprises a cascode amplifier having an input transistor, an output transistor, and a variable impedance device in a circuit branch coupled to a gate of the output transistor. The impedance of the variable impedance device is responsive to a variable bias control signal.

Abstract: A laser diode driver circuit uses transconductance amplifying devices, preferably FETs, in a balanced input configuration. First and second amplifying devices are arranged to receive respective inverting and non-inverting input signals on their respective control terminals (gates). The amplifying devices are arranged to drive a laser diode connected between the current output terminals (source terminals) of said first and second amplifying devices. In one embodiment, a first node connects a source terminal of a first amplifier FET, a first terminal of the laser diode, and a drain terminal of a biasing FET. In another embodiment, in addition to the circuitry of the first embodiment a second node connects the second amplifier FET, a drain of a second biasing FET, and a second terminal of the laser diode. Preferably, the first and (optionally) the second biasing FETs bias the circuit's outputs with an offset, relative to one another, of substantially the turn-on threshold of the laser diode.