Abstract: Different techniques are presented for achieving enhanced linearity of digital transmitters. In one aspect, each unit cell of a switched capacitor circuit includes a capacitor electrically coupled via a switch to one of a drive voltage or a reference voltage, and the switch is implemented by two transistors coupled in series. The two transistors are transitioned between on and off states by control signals applied to control terminals of the two transistors, such that the control signals are pulse waves with edges temporally shifted in relation to each other and thereby reducing switching resistance during switch transitions.

Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.

Abstract: Different techniques are presented for achieving enhanced linearity of digital transmitters. In one aspect, each unit cell of a switched capacitor circuit includes a capacitor electrically coupled via a switch to one of a drive voltage or a reference voltage, and the switch is implemented by two transistors coupled in series. The two transistors are transitioned between on and off states by control signals applied to control terminals of the two transistors, such that the control signals are pulse waves with edges temporally shifted in relation to each other and thereby reducing switching resistance during switch transitions.

Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.

Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.

Abstract: A technique is presented for correcting phase distortion in a digital wireless transmitter. The technique includes: receiving an RF signal in an analog domain by a digital-to-RF modulator; amplitude modulating, the RF signal in accordance with a digital input code; and introducing delay in a signal path traversed by the RF signal before the digital-to-RF modulator using a delay circuit. The duration of the delay depends upon the value of the digital input code and substantially cancels out the phase distortion introduced by the digital wireless transmitter.

Abstract: A technique is presented for correcting phase distortion in a digital wireless transmitter. The technique includes: receiving an RF signal in an analog domain by a digital-to-RF modulator; amplitude modulating, the RF signal in accordance with a digital input code; and introducing delay in a signal path traversed by the RF signal before the digital-to-RF modulator using a delay circuit. The duration of the delay depends upon the value of the digital input code and substantially cancels out the phase distortion introduced by the digital wireless transmitter.

Abstract: A vector distribution method for operation of a power amplifier of a wireless transmitter including receiving, by a first amplifier circuit, a first input vector and a second input vector. The first input vector includes data derived from an input signal of the wireless transmitter and the second input vector includes other data derived from the input signal of the wireless transmitter. The method includes, in response to receiving the input signal, instructing the first amplifier circuit to output an output signal at a high voltage.

Abstract: A group selection circuit includes an input block suitable for receiving a last column select signal of a previous column switch group and a last column select signal of a current column switch group; and a group selection block suitable for generating a group select signal that is activated from a first edge of the last column select signal of the previous column switch group to a first edge of the last column select signal of the current column switch group, in response to an output signal of the input block.

Abstract: An image sensing device includes: a pixel suitable for generating a pixel signal based on a first driving voltage; a ramp signal generation block based on a variable resistance, the ramp signal generation block being suitable for generating a ramp signal whose slope is controlled by a resistance value varied according to an analog gain; a noise compensation block based on a fixed resistance suitable for sensing a noise component included in the first driving voltage to generate a noise signal and reflecting the noise signal in the ramp signal; and a digital processing block suitable for generating a digital signal based on the pixel signal and the ramp signal.

Abstract: A group selection circuit includes an input block suitable for receiving a last column select signal of a previous column switch group and a last column select signal of a current column switch group; and a group selection block suitable for generating a group select signal that is activated from a first edge of the last column select signal of the previous column switch group to a first edge of the last column select signal of the current column switch group, in response to an output signal of the input block.

Abstract: An image sensing device includes: a pixel suitable for generating a pixel signal based on a first driving voltage; a ramp signal generation block based on a variable resistance, the ramp signal generation block being suitable for generating a ramp signal whose slope is controlled by a resistance value varied according to an analog gain; a noise compensation block based on a fixed resistance suitable for sensing a noise component included in the first driving voltage to generate a noise signal and reflecting the noise signal in the ramp signal; and a digital processing block suitable for generating a digital signal based on the pixel signal and the ramp signal.

Abstract: A ramp signal generator may include a ramp signal generation unit suitable for generating a ramp signal and a gain amplification control signal, an overlap voltage generation unit suitable for generating an overlap voltage to be overlapped with the ramp signal, and a voltage overlapping unit suitable for controlling a voltage gain by amplifying the ramp signal according to the gain amplification control signal, and overlapping the overlap voltage with the ramp signal.

Abstract: An image sensing device includes a readout circuit suitable for sequentially generating a plurality of image signals corresponding to each pixel signal, based on a ramp clock and a count clock; and a clock generation circuit suitable for generating the ramp clock and the count clock having different frequency relationships depending upon generation periods of the image signals, based on a gain code signal corresponding to an analog gain.

Abstract: An image sensing device includes a ramp voltage generation block suitable for generating a ramp voltage adjusted by a predetermined voltage in each predetermined cycle, based on a bias signal and a plurality of first ramp control signals; and a ramp voltage correction block suitable for correcting the ramp voltage in each predetermined cycle based on the bias signal and at least one second ramp control signal.

Abstract: An image sensing device includes a first read unit suitable for generating a first read signal by reading a first pixel signal, a first input line suitable for transmitting the first pixel signal, a first feedback line suitable for feeding back the first read signal, a second read unit disposed adjacent to the first read unit in a same row and suitable for generating a second read signal by reading a second pixel signal, a second input line suitable for transmitting the second pixel signal, and a second feedback line suitable for feeding back the second read signal wherein the first input line and the first feedback line are disposed symmetrically to the second input line and the second feedback line.

Abstract: A counting device includes a control unit suitable for generating a control signal including a first control signal and a second control signal, a first operation unit suitable for performing a logic operation for pixel signals of a pixel array and a control signal, wherein pixel signals of used column in the pixel array are transferred by using the first control signal, and pixel signals of unused column in the pixel array are blocked by using the second control signal during a binning mode operation, a second operation unit suitable for performing a logic operation for a counter clock and an output signal of the first operation unit, and a counting unit suitable for counting an output signal of the second operation unit.

Abstract: A comparator includes a common mode voltage sampling unit suitable for sampling a common mode voltage based on a sampling control signal; a coarse ramping voltage sampling unit suitable for sampling a coarse ramping voltage based on the sampling control signal; a preamplifier suitable for amplifying a difference between an input voltage and the sampled coarse ramping voltage to output a coarse conversion result, and amplifying a difference between a fine ramping voltage and the sampled common mode voltage to output a fine conversion result; and a signal processing unit suitable for generating the sampling control signal based on the coarse conversion result, and generating a comparison signal based on the coarse conversion result and the fine conversion result.

Abstract: An image sensing device includes a ramp voltage generation block suitable for generating a ramp voltage adjusted by a predetermined voltage in each predetermined cycle, based on a bias signal and a plurality of first ramp control signals; and a ramp voltage correction block suitable for correcting the ramp voltage in each predetermined cycle based on the bias signal and at least one second ramp control signal.

Abstract: A comparator includes a common mode voltage sampling unit suitable for sampling a common mode voltage based on a sampling control signal; a coarse ramping voltage sampling unit suitable for sampling a coarse ramping voltage based on the sampling control signal; a preamplifier suitable for amplifying a difference between an input voltage and the sampled coarse ramping voltage to output a coarse conversion result, and amplifying a difference between a fine ramping voltage and the sampled common mode voltage to output a fine conversion result; and a signal processing unit suitable for generating the sampling control signal based on the coarse conversion result, and generating a comparison signal based on the coarse conversion result and the fine conversion result.