Chun W Lee

US Patent:

8536899, Sep 17, 2013

Filed:

Mar 30, 2012

Appl. No.:

13/436382

Inventors:

Cho-Ying Lu - Hillsboro OR, US
Chun Lee - Portland OR, US
Jad B. Rizk - Portland OR, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G01R 19/00

US Classification:

327 51

Abstract:

Embodiments of a calibration circuit for a current source which may include a first control switch, a second control switch, and a capacitor. In embodiments, the first control switch may be operable to couple the capacitor to the current source and the second control switch may be operable to couple the capacitor to a reference current source to enable the capacitor to be charged or discharged according to a first control signal provided to the first control switch and a second control signal provided to the second control switch. In embodiments, the calibration circuit may be included in a digital-to-analog (DAC) converter.

US Patent:

20220200750, Jun 23, 2022

Filed:

Dec 17, 2020

Appl. No.:

17/124536

Inventors:

- Santa Clara CA, US
Chun C. LEE - Portland OR, US
Stefano PELLERANO - Beaverton OR, US
Christopher D. HULL - Portland OR, US

International Classification:

H04L 5/00
H04W 72/08
H04W 72/04

Abstract:

Various aspects of this disclosure provide a receiver. The receiver may include a down-converter configured to down-convert a received communication signal at a predefined carrier frequency, with a reference signal received from a reference signal generator, and a processor configured to perform a signal quality detection to identify a signal quality metric of the received communication signal at the predefined carrier frequency, and to provide a frequency adjusting signal to the reference signal generator to change the frequency of the reference signal based on the performed signal quality detection to identify the signal quality metric of the received communication signal at the predefined carrier frequency.

US Patent:

20190199358, Jun 27, 2019

Filed:

Dec 26, 2017

Appl. No.:

15/854624

Inventors:

- Santa Clara CA, US
Sarath Makala - Hillsboro OR, US
Kowshik Gandham - Alviso CA, US
Chun Lee - Portland OR, US

International Classification:

H03L 7/085
H03L 7/099
G06F 1/08

Abstract:

Some embodiments include apparatuses and methods using the apparatuses. Some of the apparatuses include a phase frequency detector to generate output information having a value based on a relationship between a first clock signal and a second clock signal, a memory element to store the values of the output information, a digital control oscillator to generate the second clock signal having a phase and frequency based on a digital code, the digital code having a value based on control information, and circuitry to generate the control information based on conditions determined at least from the values stored in the memory element.