-
公开(公告)号：US20250047290A1
公开(公告)日：2025-02-06
申请号：US18230294
申请日：2023-08-04
Applicant: Renzhi Liu , Sarah Shahraini , Timo Huusari , Richard Dorrance , Charles Augustine , Brent R. Carlton
Inventor： Renzhi Liu , Sarah Shahraini , Timo Huusari , Richard Dorrance , Charles Augustine , Brent R. Carlton
Abstract: Some embodiments include a first oscillator circuit including a first input node to receive a connection from a first resonator, and a first output node to provide a first oscillating signal; a second oscillator circuit including a second input node to receive a connection from a second resonator, and a second output node to provide a second oscillating signal; a frequency measurement circuit coupled to the first output node and the second output node; a code generator including an input node coupled to an output node of the frequency measurement circuit, and an output node to provide a code; and a timing signal generator including a node coupled to the output node of the code generator, an input node coupled to the output node of the first oscillator circuit, an output node to provide an output oscillating signal.
-
公开(公告)号：US11960247B2
公开(公告)日：2024-04-16
申请号：US18197473
申请日：2023-05-15
Applicant: The Regents of the University of Colorado
Inventor： Svenja Knappe , Sean Krzyzewski
Abstract: According to some aspects of the present disclosure, an atomic clock and methods of forming and/or using an atomic clock are disclosed. In one embodiment, an atomic clock includes: a light source configured to illuminate a resonance vapor cell; a narrowband optical filter disposed between the light source and the resonance vapor cell and arranged such that light emitted from the light source passes through the narrowband optical filter and illuminates the resonance vapor cell. The resonance vapor cell is configured to emit a signal corresponding to a hyperfine transition frequency in response to illumination from the light source, and a filter cell is disposed between the light source and the resonance vapor cell and configured to generate optical pumping. An optical detector is configured to detect the emitted signal corresponding to the hyperfine transition frequency.
-
公开(公告)号：US20220004150A1
公开(公告)日：2022-01-06
申请号：US17366808
申请日：2021-07-02
Inventor： Svenja Knappe , Sean Krzyzewski
Abstract: According to some aspects of the present disclosure, an atomic clock and methods of forming and/or using an atomic clock are disclosed. In one embodiment, an atomic clock includes: a light source configured to illuminate a resonance vapor cell; a narrowband optical filter disposed between the light source and the resonance vapor cell and arranged such that light emitted from the light source passes through the narrowband optical filter and illuminates the resonance vapor cell. The resonance vapor cell is configured to emit a signal corresponding to a hyperfine transition frequency in response to illumination from the light source, and a filter cell is disposed between the light source and the resonance vapor cell and configured to generate optical pumping. An optical detector is configured to detect the emitted signal corresponding to the hyperfine transition frequency.
-
公开(公告)号：US06894576B2
公开(公告)日：2005-05-17
申请号：US10650685
申请日：2003-08-29
Applicant: Metin Giousouf , Heinz Kück , Rainer Platz
Inventor： Metin Giousouf , Heinz Kück , Rainer Platz
IPC: G04G3/00 , B81B3/00 , G01C19/56 , G01C19/5684 , G01C19/5712 , G04F5/04 , H03B5/30 , H03B5/32 , H03H9/24
CPC classification number: G01C19/5712 , H03B5/30
Abstract: A time base including a resonator (4) and an integrated electronic circuit (3) for driving the resonator into oscillation and for producing, in response to the oscillation, a signal having a determined frequency. The resonator is an integrated micromechanical ring resonator supported above a substrate (2) and adapted to oscillate around an axis of rotation (O) substantially perpendicular to the substrate. The ring resonator includes a free-standing oscillating structure having a plurality of thermally compensating members (65) which are adapted to alter a mass moment of inertia of the free-standing oscillating structure as a function of temperature so as to compensate for the effect of temperature on the resonant frequency of the ring resonator.
Abstract translation: 包括谐振器（4）和用于将谐振器驱动到振荡中并用于响应于振荡产生具有确定频率的信号的集成电子电路（3）的时基。 谐振器是支撑在衬底（2）上并适于围绕基本上垂直于衬底的旋转轴线（O）摆动的集成微机械环谐振器。 环形谐振器包括具有多个热补偿构件（65）的自立式振荡结构，其适于改变作为温度的函数的自立式振荡结构的质量惯性矩，以便补偿 环形谐振器的谐振频率的温度。
-
公开(公告)号：US20050062552A1
公开(公告)日：2005-03-24
申请号：US10654155
申请日：2003-09-03
Applicant: Jinquan Deng , Jeff Crockett , Thomas English
Inventor： Jinquan Deng , Jeff Crockett , Thomas English
CPC classification number: H03L7/26 , G04F5/145 , H01S1/06 , H01S5/0021 , H01S5/042 , H01S5/0427 , H01S5/0683 , H01S5/06837
Abstract: In an apparatus using optically excited atomic media, such as an atomic frequency standard, a source providing a controlled emission of light for exciting the D1 and/or D2 resonance lines of an alkali gas, such as rubidium or cesium, is controlled by an output generated by digital electronics from the light intensity signal of a light sensor for light transmitted by the alkali gas, an output for representing ambient temperature, and a light intensity-ambient temperature algorithm to substantially eliminate changes in light intensity due to light source aging for the purpose of reducing changes in temperature sensitivity of the apparatus as a function of time and the light-shift contribution to the frequency aging of the standard.
Abstract translation: 在使用诸如原子频率标准的光激发原子介质的设备中，提供用于激发碱性气体（例如铷或铯）的D1和/或D2谐振线的受控发射光的源由输出 由光电传感器的光强度信号由碱性气体传输的光的光强度信号产生，用于表示环境温度的输出，以及光强度 - 环境温度算法，以基本上消除由于光源老化引起的光强度变化 降低设备的温度敏感度随时间的变化和对标准频率老化的光移位贡献的目的。
-
Patent Agency Ranking
公开(公告)号：US4132059A
公开(公告)日：1979-01-02
申请号：US758513
申请日：1977-01-11
Applicant: Clark R. Williams
Inventor： Clark R. Williams
CPC classification number: G04F5/04 , G04G3/02 , H01L27/0214 , H03K19/091
Abstract: An electronic timekeeping system is implemented in bipolar integrated circuit technology for displaying time by way of a digital display. The bipolar circuitry is implemented utilizing integrated injection logic and is interconnected with a plurality of circuit elements connected in parallel in levels such that the levels are electrically stacked and serially diode coupled.
-
-
-
公开(公告)号：US10530372B1
公开(公告)日：2020-01-07
申请号：US15470616
申请日：2017-03-27
Applicant: MY Tech, LLC
Inventor： Tommy Yu , Avanindra Madisetti
Abstract: Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.
-
公开(公告)号：US07889028B2
公开(公告)日：2011-02-15
申请号：US12294652
申请日：2007-04-03
Applicant: Thierry Hessler , Kaspar Trümpy
Inventor： Thierry Hessler , Kaspar Trümpy
CPC classification number: G04C5/00 , G04B17/066
Abstract: The coupled resonator comprises a first low frequency resonator, such as a balance spring (1) and a second higher frequency resonator, such as a tuning fork (2), the two resonators (1 and 2) including permanent mechanical coupling means. Application to the regulating system of a timepiece.
Abstract translation: 耦合谐振器包括诸如平衡弹簧（1）的第一低频谐振器和诸如音叉（2）的第二较高频率谐振器，所述两个谐振器（1和2）包括永久机械耦合装置。 适用于钟表的调节系统。
-
-
-
-
-
-
-
-
-
Search Results
54
records
(took 0.014 seconds)
