Sitime Corporation

Guide Technology, Inc.

Virage Logic Corporation

Synopsys, Inc.

Other

Guidetech, Inc.

Sassan Tabatabaei

Kamran Souri

Aaron Partridge

Saleh Heidary Shalmany

Charles I Grosjean

Lijun Chen

Yervant Zorian

Ugur Sönmez

Meisam Heidarpour Roshan

Markus Lutz

Paul Merritt Hagelin

Uğur Sönmez

Samira Zaliasl

Mordechai Ben-Zeev

Touraj Farahmand

Michael Lee

Paul Frederick Miller

In a timing signal generator having a resonator, one or more temperature-sense circuits generate an analog temperature signal and a digital temperature signal indicative of temperature of the resonator. First and second temperature compensation signal generators to generate, respectively, an analog temperature compensation signal according to the analog temperature signal and a digital temperature compensation signal according to the digital temperature signal. Clock generating circuitry drives the resonator into mechanically resonant motion and generates a temperature-compensated output timing signal based on the mechanically resonant motion, the analog temperature compensation signal and the digital temperature compensation signal.

Clock generator with dual-path temperature compensation

An oscillator includes a resonator, sustaining circuit and detector circuit. The sustaining circuit receives a sense signal indicative of mechanically resonant motion of the resonator generates an amplified output signal in response. The detector circuit asserts, at a predetermined phase of the amplified output signal, one or more control signals that enable an offset-reducing operation with respect to the sustaining amplifier circuit.

Cascaded oscillator designs

Low Allan-deviation oscillator

In an integrated circuit device having a microelectromechanical-system (MEMS) resonator and a temperature transducer, a clock signal is generated by sensing resonant mechanical motion of the MEMS resonator and a temperature signal indicative of temperature of the MEMS resonator is generated via the temperature transducer. The clock signal and the temperature signal are output from the integrated circuit device concurrently.

Temperature-reporting oscillator

In a high resolution temperature sensor, first and second MEMS resonators generate respective first and second clock signals and a locked-loop reference clock generator generates a reference clock signal having a frequency that is phase-locked to at least one of the first and second clock signals. A frequency-ratio engine within the MEMS temperature sensor oversamples at least one of the first and second clock signals with the reference clock signal to generate a ratio of the frequencies of the first and second clock signals.

Dual-MEMS device with temperature correction of MEMS output based on relative MEMS operation

In various time-transfer systems, one or more fixed-position time beacons broadcast radio-frequency (RF) time-transfer messages to time-keeping modules disposed in remote radio heads and other strategic locations to achieve highly reliable and accurate synchronized time, phase, and frequency transfer over a metropolitan or other wide-field area.

Time module apparatus for use with fixed-beacon time transfer system

Low allan-deviation oscillator

Low Allan-Deviation oscillator

Fixed-beacon time transfer system

Growing community of inventors

Sunnyvale, CA, United States of America

Sassan Tabatabaei