H03K2005/00286

Semiconductor device
10483957 · 2019-11-19 · ·

The present invention provides a semiconductor device capable of properly performing equalization even when the transfer rate of serial data is changed. A semiconductor device includes: an addition circuit of adding input data and feedback data and outputting addition data; a first sampling circuit of sampling the addition data from the addition circuit and outputting sampling data; a multiplication circuit of multiplying the sampling data from the first sampling circuit by a tap coefficient to generate the feedback data; a tap coefficient determination circuit determining the tap coefficient on the basis of the sampling data from the first sampling circuit; and a calibration circuit of adjusting a delay time since the first sampling circuit outputs the sampling data until the addition data corresponding to the output sampling data is supplied to the first sampling circuit.

Precision high frequency phase adders
11962273 · 2024-04-16 · ·

An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.

DYNAMIC CONNECTION NODE BASED COMPUTING
20190326892 · 2019-10-24 ·

Described herein are nodes, sub-systems and systems of nodes for use in a dynamic node based computer. In some embodiments, nodes include: one or more signal receivers for detecting or receiving one or more input signals from one or more signal sources, one or more signal transmitters for selectively connecting and transmitting signals to one or more other nodes; and a threshold device configured to control the selective operation of the signal transmitter based on a threshold derived from one or more characteristics of the input signals. More complex variations of the nodes include the addition of threshold manipulation devices, signal amplifiers or dampeners, control devices, or computational devices. Also described herein are machines or devices built from one or more such nodes.

APPARATUSES AND METHODS FOR PROVIDING CLOCK SIGNALS IN A SEMICONDUCTOR DEVICE

Apparatuses and methods for providing clocks in a semiconductor device are disclosed. An example apparatus includes a clock generating circuit configured to generate an output clock signal based on one of rising and trailing edges of first, second, third and fourth clock signals in a first mode, phases of the first, second, third and fourth clock signals being shifted to each other. The clock generating circuit is further configured to generate the output clock signal based on both of rising and trailing edges of fifth and sixth clock signals in a second mode.

PHASE SHIFTER AND WIRELESS COMMUNICATION APPARATUS
20190305420 · 2019-10-03 ·

A phase shifter includes a first capacitor connected to a first line to which a first input signal is input, a second capacitor connected to a second line to which a second input signal having a first phase difference with respect to the first input signal is input, and a combining circuit that is connected to the first line and the second line and that outputs a combined signal having a phase determined depending on a first capacitance ratio between the first capacitor and the second capacitor.

APPARATUSES AND METHODS FOR ADJUSTING A PHASE MIXER CIRCUIT
20190288674 · 2019-09-19 · ·

Apparatuses and methods for adjusting a phase mixer circuit are disclosed. An example apparatus includes a shift register that includes a plurality of registers coupled in series to one another. The plurality of registers are grouped into a first group of registers and a second group of registers. The first group of registers includes first and second registers. The second group of registers includes a third register. The first and second registers of the first group of registers are configured to receive in common an output of the third register of the second group of registers so that both the first and second registers store the output of the third register responsive to a shift clock.

Apparatuses and methods for providing voltages to conductive lines between which clock signal lines are disposed

Apparatuses and methods for providing voltages to conductive lines between which clock signal lines are disposed are disclosed. Voltages provided to the conductive lines may provide voltage conditions for clock signals on the clock signal lines that are relatively the same for at least some of the clock edges of the clock signals. Having the same voltage conditions may mitigate variations in timing/phase between the clock signals due to different voltage influences when a clock signal transitions from a low clock level to a high clock level.

STATIC COMPENSATION OF AN ACTIVE CLOCK EDGE SHIFT FOR A DUTY CYCLE CORRECTION CIRCUIT

Duty cycle correction devices for static compensation of an active clock edge shift. A duty cycle correction circuit in the duty cycle correction device corrects a clock input signal, according to a first control signal. A programmable delay circuit or a modified duty cycle correction circuit in the duty cycle correction device compensates a shift of an active clock edge in a clock output signal of the duty cycle correction circuit, according to a second control signal. A mapping circuit in the duty cycle correction device generates the second control signal by mapping a digital value of the first control signal and a digital value of the second control signal.

High frequency phase shifter using limited ground plane transition and switching arrangement
10396780 · 2019-08-27 · ·

Designing phase shifters having small insertion loss and footprint for mm-wave applications is challenging. The disclosed methods and devices provide solutions to overcome such challenge. Devices based on limited ground coplanar waveguide structure are also disclosed wherein the 180 phase shift is created using through and changeover mm-wave switches.

Pulse shift circuit and frequency synthesizer

A problem with conventional distortion pulse shift circuits is that the output timing of a pulse signal cannot be controlled unless a reset signal is used. A pulse shift circuit according to the present invention includes: an integrator to integrate, for every clock, the first signal to be inputted; a quantizer to receive the second signal and to output a pulse signal when an integrated value of the integrator becomes equal to or larger than a signal value of the second signal; a delay circuit to delay the pulse signal; a converter disposed before or after the delay circuit to convert a signal value of the pulse signal into the signal value of the second signal; a subtractor to subtract the signal value of the pulse signal converted by the converter, from the signal value of the first signal to be inputted to the integrator; and an input signal control circuit to receive a third signal, to be disposed before the integrator, and to add a signal value corresponding to the third signal to the first signal to be inputted to the integrator or to block the first signal from being inputted to the integrator for clocks corresponding to the third signal.