Intel Corporation

Cindra Widya Abidin

Georgios Asmanis

Kursad Kiziloglu

Shivakumar Seetharaman

Yihai Xiang

Georglos S Asmanis

Techniques to tune a frequency of a sinusoidal signal using devices having controllable signal phase delay times. One implementation may include an input terminal to receive an input signal; a first delay path to selectively receive the input signal; a second delay path to selectively receive the input signal; and a control terminal to control an extent to which the input signal flows through the first delay path and the second delay path.

Ring oscillator devices and methods of generating signals

An input branch of a loss-of-signal (LOS) detector is coupled to a first input of a comparator. A threshold branch of the LOS detector is coupled to a second input of the comparator. An operational amplifier is connected between the input branch and the threshold branch to couple an offset level from the input branch to the threshold branch. The offset level is then cancelled at the comparator.

Method and apparatus for detecting interruption of an input signal with cancellation of offset level

The present invention includes an offset cancellation device having input return loss characteristics suitable for high frequency operation.

DC offset cancellation techniques

Described are a circuit and system to provide an output signal in response to composite input signal comprising an AC signal component and a DC signal component. An amplifier provides an amplified voltage signal in response to a voltage representative of the composite signal. A filter may provide a filtered voltage signal having a magnitude that is representative of a magnitude of the DC signal component in response to the amplified voltage signal. A DC signal removal circuit may substantially remove at least a portion of the DC signal component from an input terminal in response filtered voltage signal.

DC offset cancellation circuit, system and method

A charge pump includes a first current source, a second current source, and a current mirror. The first current source is included to set a common mode output voltage of a charge pump core based on a desired common mode input of the charge pump core. The second current source is included to receive the common mode output voltage from the charge pump core. A first input of the current mirror receives a signal from the first current source, and a second input of the current mirror receives a signal from the second current source.

Common mode feedback technique for a low voltage charge pump

According to some embodiments, a charge pump includes a first current source coupled to a first and a second switch, each of the first and the second switch to receive a respective component of a first differential control signal, a second current source coupled to a third and a fourth switch, each of the third and the fourth switch to receive a respective component of a second differential control signal, the first switch and the third switch coupled to a first node to provide a first component of a differential output signal, and the second switch and the fourth switch coupled to a second node to provide a second component of the differential output signal, a third current source to source current to the first node, and a fourth current source to source current to the second node.

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West Los Angeles, CA, United States of America

Cindra Widya Abidin