Digital phase locked loop with dithering

K Waheed, M Sheba, RB Staszewski… - US Patent …, 2010 - Google Patents
An embodiment of the present invention provides a phase locked loop that operates on
clock signals derived from an RF clock signal generated by the phase locked loop. A …

Digital phase locked loop with dithering

K Waheed, M Sheba, RB Staszewski… - US Patent …, 2011 - Google Patents
H03M1/0634—Continuously compensating for, or preventing, undesired influence of
physical parameters characterised by the use of methods or means not specific to a …

PVT-free calibration circuit for TDC resolution in ADPLL

FW Kuo, KK Yen, C Huan-Neng, L Hsien-Yuan… - US Patent …, 2013 - Google Patents
BACKGROUND An all-digital phase locked loop (ADPLL) is a circuit that locks the phase of
a local oscillator clock signal, output from the ADPLL, to the phase of a frequency reference …

Digital phase-locked loop clock system

D Zhu, RP Nelson, T Raithatha, W Palmer… - US Patent …, 2012 - Google Patents
The present invention is generally directed to a digital clock system that may be used to
generate a clock for a circuit system. In particular, the present invention is directed to a clock …

Fractional interpolative timing advance and retard control in a transceiver

TC Murphy, J Zhuang, K Waheed… - US Patent …, 2012 - Google Patents
(21) Appl. No.: 12/411,482 Transmission of information between user equipment (UE) and
base stations in a wireless network occurs using a stream (22) Filed: Mar. 26, 2009 of …

Error compensation method, digital phase error cancellation module, and ADPLL thereof

HH Chang, BY Hsieh, JHC Zhan - US Patent 8,395,453, 2013 - Google Patents
Phase error of a time-to-digital converter (TDC) within an all-digital phase-locked loop
(ADPLL) is compensated by predicting possible phase error, which are predicted accord ing …

Mitigation of RF Oscillator Pulling through Adjustable Phase Shifting

I Bashir, RB Staszewski, O Eliezer… - US Patent App. 12 …, 2010 - Google Patents
A digitally controlled mechanism for the minimization of the self-interference caused by an
amplitude modulated signal generated within a polar transmitter to the oscillator circuit …

Gain normalization of a time-to-digital converter

TJ Ridgers - US Patent App. 13/129,564, 2011 - Google Patents
It is therefore an aim of the invention to provide an improved gain normalization of a time-to-
digital converter. 0009. In accordance with a first aspect of the invention, there is provided a …

All-digital phase-locked loop, loop bandwidth calibration method, and loop gain calibration method for the same

HH Chang, PY Wang, JHC Zhan, BY Hsieh - US Patent 8,228,128, 2012 - Google Patents
For decreasing errors within an analog phase-locked loop, an all-digital phase-locked loop
(ADPLL) with digital compo nents and digital operations is used. The ADPLL may also be …

Digital phase locked loop device and method in wireless communication system

K Lee, PU Young-Gun, P An-Soo, P Joon-Sung… - US Patent …, 2013 - Google Patents
Abstract A digital Phase Locked Loop (PLL) in a wireless communication system is provided.
The PLL includes a Digitally Controlled Oscillator (DCO), a divider, a Phase Frequency …