-
公开(公告)号：US12101062B1
公开(公告)日：2024-09-24
申请号：US18130843
申请日：2023-04-04
Applicant: SiTime Corporation
Inventor： Sassan Tabatabaei , Kamran Souri , Saleh Heidary Shalmany , Charles I. Grosjean
Abstract: 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.
-
公开(公告)号：US11716055B1
公开(公告)日：2023-08-01
申请号：US17712096
申请日：2022-04-02
Applicant: SiTime Corporation
Inventor： Aaron Partridge , Sassan Tabatabaei , Lijun Chen , Kamran Souri
IPC: H03B5/36 , H03F3/04 , H03F3/70 , G01C19/5726 , G01C19/56
CPC classification number: H03B5/36 , G01C19/56 , G01C19/5726 , H03F3/04 , H03F3/70 , H03B2200/005 , H03F2200/129
Abstract: 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.
-
公开(公告)号：US10979031B1
公开(公告)日：2021-04-13
申请号：US16782634
申请日：2020-02-05
Applicant: SiTime Corporation
Abstract: 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.
-
公开(公告)号：US11228302B1
公开(公告)日：2022-01-18
申请号：US17199314
申请日：2021-03-11
Applicant: SiTime Corporation
Abstract: 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.
-
公开(公告)号：US10247621B1
公开(公告)日：2019-04-02
申请号：US15264583
申请日：2016-09-13
Applicant: SiTime Corporation
Inventor： Aaron Partridge , Samira Zaliasl , Meisam Heidarpour Roshan , Sassan Tabatabaei
Abstract: 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.
-
Patent Agency Ranking
公开(公告)号：US12224709B1
公开(公告)日：2025-02-11
申请号：US18498671
申请日：2023-10-31
Applicant: SiTime Corporation
Inventor： Aaron Partridge , Sassan Tabatabaei , Lijun Chen , Kamran Souri
IPC: H03B5/36 , G01C19/56 , G01C19/5726 , H03F3/04 , H03F3/70
Abstract: 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.
-
公开(公告)号：US12047071B1
公开(公告)日：2024-07-23
申请号：US18464635
申请日：2023-09-11
Applicant: SiTime Corporation
Inventor： Saleh Heidary Shalmany , Kamran Souri , Sassan Tabatabaei , Uğur Sönmez
Abstract: 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.
-
公开(公告)号：US11528014B1
公开(公告)日：2022-12-13
申请号：US17544171
申请日：2021-12-07
Applicant: SiTime Corporation
Abstract: 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.
-
公开(公告)号：US10833632B1
公开(公告)日：2020-11-10
申请号：US16402161
申请日：2019-05-02
Applicant: SiTime Corporation
Inventor： Sassan Tabatabaei , Kamran Souri , Saleh Heidary Shalmany , Charles I. Grosjean
Abstract: 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.
-
10.发明授权公开(公告)号：US11990908B1
公开(公告)日：2024-05-21
申请号：US16807979
申请日：2020-03-03
Applicant: SiTime Corporation
Inventor： Aaron Partridge , Samira Zaliasl , Meisam Heidarpour Roshan , Sassan Tabatabaei
CPC classification number: H03K3/0315 , G01K7/32 , H03L1/027 , H03L7/0991 , H03L7/18 , H03L7/1976
Abstract: 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.
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.039 seconds)
