Dynamic temperature compensation for a digitally controlled oscillator using dual MEMS resonators

C Lu, E Klaassen, S Perumal - US Patent 7,545,228, 2009 - Google Patents
One embodiment of the present invention sets forth a sys tem for generating a temperature-
compensated timing signal. The system comprises a digitally controlled oscillator (DCO) …

Synthesizer and reception device using the same

A Namba, Y Tsukio, S Fukushima - US Patent 8,384,449, 2013 - Google Patents
US PATENT DOCUMENTS FOREIGN PATENT DOCUMENTS 7,436,227 B2* 10/2008
Thomsen et al.............. 327,147 JP 05-122064 A 5, 1993 7,453,324 B2 11/2008 Partridge et …

Self-calibrated thermal sensors of an integrated circuit die

MA Abdelmoneum, DE Duarte, GF Taylor - US Patent 10,247,624, 2019 - Google Patents
Embodiments of the present disclosure provide self-cali brated thermal sensors of an
integrated circuit (IC) die and associated techniques and configurations. In one embodi …

MEMS resonator array structure and method of operating and using same

M Lutz, Z Pan, A Partridge - US Patent 7,907,035, 2011 - Google Patents
(57) ABSTRACT A MEMS array structure including a plurality of bulk mode resonators may
include at least one resonator coupling sec tion disposed between the plurality of bulk mode …

Micromechanical devices comprising n-type doping agents

T Pensala, A Jaakkola, M Ganchenkova… - US Patent …, 2017 - Google Patents
The invention concerns a micromechanical device and method of manufacturing thereof.
The device comprises an oscillating or deflecting element made of semiconductor material …

Crystal oscillator emulator

S Sutardja - US Patent 7,791,424, 2010 - Google Patents
(63) Continuation of application No. 1 1/649,433, filed on Official Communication from the
European Patent Office dated Dec. Jan. 4, 2007, and a continuation-in-part of application 4 …

Crystal oscillator emulator

S Sutardja - US Patent 7,760,039, 2010 - Google Patents
No. 1 1/328,979, filed on Jan. 10, 2006, and a continu-(Continued) ation-in-part of
application No. 10/892,709, filed on Primary Examiner Arnold Kinkead Jul. 16, 2004, now …

Temperature measurement and compensation based on two vibrating modes of a bulk acoustic mode microresonator

M Koskenvuori, V Kaajakari, T Mattila… - 2008 IEEE 21st …, 2008 - ieeexplore.ieee.org
A method to detect the temperature of a micromechanical resonator by measuring the
frequency-shifts of two different eigenmodes is presented. The resonator is a square …

Frequency and temperature compensation synthesis for a MEMS resonator

KR Cioffi, D Lacroix - US Patent 7,449,968, 2008 - Google Patents
This invention was made with government Support under Contract No. 70NANB4H3001
awarded by the National Institute for Standards and Technology (NIST). The govern ment …

Digital controlled oscillator

F Vanselow, M Arnold - US Patent 7,800,454, 2010 - Google Patents
A digital controlled oscillator including a programmable current source, a first variable
capacitor and a second variable capacitor. A comparator compares the voltage across the …