中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

164 records (took 0.018 seconds)

    Molecular clock calibration
    91.
    发明授权
    Molecular clock calibration 有权

    公开(公告)号：US11342928B1

    公开(公告)日：2022-05-24

    申请号：US17460575

    申请日：2021-08-30

    Applicant: Texas Instruments Incorporated

    Inventor： Bichoy Bahr ,  Baher Haroun ,  Swaminathan Sankaran ,  Juan Alejandro Herbsommer

    IPC: H03L7/197 ,  H03L7/081 ,  H03L7/099 ,  H03L7/093

    Abstract: A method, providing an oscillator output signal to reference inputs of a PLL and an output clock circuit; providing a first divisor value to a control input of the PLL to regulate a closed loop that includes a physics cell, a receiver, and the PLL; providing a second divisor value to a control input of the output clock circuit to control an output frequency of an output clock signal; shifting the first divisor value in a first direction to cause a perturbation in the closed loop; shifting the second divisor value in an opposite second direction to counteract a response of the closed loop to the perturbation and to regulate the output frequency of the output clock signal; and based on the receiver output signal, analyzing the response of the closed loop to the perturbation.

    Millimeter Wave Magnetic Sensor
    92.
    发明申请
    Millimeter Wave Magnetic Sensor 有权

    公开(公告)号：US20220146601A1

    公开(公告)日：2022-05-12

    申请号：US17095271

    申请日：2020-11-11

    Applicant: Texas Instruments Incorporated

    Inventor： Argyrios Dellis ,  Juan Alejandro Herbsommer ,  Adam Joseph Fruehling ,  Bichoy Waguih Bahr

    IPC: G01R33/04 ,  G01R15/18 ,  G01R15/20

    Abstract: In described examples, a magnetic sensor includes a waveguide that encapsulates dipolar molecules. A mm-wave electromagnetic field is launched into the waveguide, travels through the dipolar molecules, and is then received after passing through the dipolar molecules. The frequency of the mm-wave electromagnetic signal is swept across a range that includes an intrinsic quantum rotational state transition frequency (Fr) for the dipolar molecules. Absorption peaks in accordance with the Zeeman effect are determined. A strength of a magnetic field affecting the magnetic sensor is proportional to a difference in the frequencies of the absorption peaks.

    Molecular clock with delay compensation
    93.
    发明授权
    Molecular clock with delay compensation 有权

    公开(公告)号：US11188032B2

    公开(公告)日：2021-11-30

    申请号：US16589176

    申请日：2019-10-01

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Bichoy Bahr ,  Argyrios Dellis ,  Adam Fruehling ,  Juan Alejandro Herbsommer

    IPC: G04F5/00

    Abstract: A clock generator includes a hermetically sealed cavity and clock generation circuitry. A dipolar molecule in the hermetically sealed cavity has a quantum rotational state transition at a fixed frequency. The clock generation circuitry generates an output clock signal based on the fixed frequency of the dipolar molecule. The clock generation circuitry includes a detection circuit, a reference oscillator, and control circuitry. The detection circuit generates a first detection signal and a second detection signal representative of amplitude of signal at an output of the hermetically sealed cavity responsive to a first sweep signal and a second sweep signal input to the hermetically sealed cavity. The control circuitry sets a frequency of the reference oscillator based on a difference in time of identification of the fixed frequency of the dipolar molecule in the first detection signal and the second detection signal.

    Magnetically compensated chip scale atomic clock
    94.
    发明授权
    Magnetically compensated chip scale atomic clock 有权

    公开(公告)号：US10969746B2

    公开(公告)日：2021-04-06

    申请号：US16730332

    申请日：2019-12-30

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Bradley Allen Kramer ,  Benjamin Stassen Cook ,  Juan Alejandro Herbsommer

    IPC: G04F5/14 ,  H03B17/00 ,  H03L7/26 ,  H01S5/024 ,  H01S5/0687 ,  H01S5/183 ,  H01S5/00 ,  H01S5/022

    Abstract: In described examples, a physics cell includes: a laser source configured to emit light towards an atomic chamber containing an atomic gas; a photodetector configured to receive emissions from the atomic chamber; and a field coil for generating a magnetic field in the atomic chamber. An electronics circuit includes: a controller circuit coupled to the photodetector output and having control outputs to a digital to analog converter circuit; the digital to analog converter circuit having a coil current output to adjust the magnetic field, a modulation control output to control a modulation of the light, and having an output to control a voltage controlled oscillator; and a radio-frequency output circuit having a voltage controlled oscillator coupled to the output of the digital to analog converter circuit outputting a radio frequency signal to the laser source in the physics cell.

    Integrated compact MMW spectroscopy cell system and method
    95.
    发明授权
    Integrated compact MMW spectroscopy cell system and method 有权

    公开(公告)号：US10900837B2

    公开(公告)日：2021-01-26

    申请号：US16234195

    申请日：2018-12-27

    Applicant: Texas Instruments Incorporated

    Inventor： Adam Joseph Fruehling ,  Juan Alejandro Herbsommer ,  Argyrios Dellis

    IPC: G01J3/42 ,  G01N21/3581

    Abstract: A compact mmW spectroscopy cell system for detecting volatile organic compounds (compounds) in a gas. The system includes a gas collection chamber, an input buffer cavity for receiving the gas from the gas collection chamber, pumping devices to pass the gas from the buffer cavity to an absorption cell and maintain pressure, and a transceiver connected to the cell. The transceiver interrogates the absorption cell filled with the gas by passing a high frequency electromagnetic signal and sweeping the signal to generate an absorption spectra which is compared to a spectroscopy database for detecting the compounds in the gas. The absorption cell, collection chambers, and pumping devices are fabricated with standard CMOS processing techniques at chip and wafer scale. The transceiver bonded to the absorption cell with chip scale integration.

Patent Agency Ranking