Patents by Inventor Ching L. Lin

Ching L. Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240192032
    Abstract: A sensor includes a light emitter capable of producing stimulated emission. The sensor includes an optical fiber comprising at least one fiber Bragg grating. A first end of the optical fiber is optically coupled to a first emitting end of the light emitter. The fiber Bragg grating is located at a measurement region of the optical fiber away from the first end. A change in wavelength of the laser emission in the optical fiber is induced by a change in peak reflectivity of the fiber Bragg grating. The change in the peak reflectivity occurs in response to an environmental change at the measurement region, e.g., which changes a physical periodicity and/or the refractive index of the grating. The sensor includes an optical detector coupled to the optical fiber or the light emitter that detects the change in the wavelength.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 13, 2024
    Inventors: Thomas Wunderer, Ching-Fuh Lin, Christopher L. Chua
  • Patent number: 6307726
    Abstract: A controllable current limiting circuit (30) that, when used with a low precision current limiting circuit (10), will limit the current of the output driver transistor M1 to a relatively flat response over a broad temperature range. The current is limited by setting the voltage across a resistance, R1, to a certain value. To overcome temperature induced variations in this voltage, the compensation circuit (20) generates a current that varies with temperature. This current is injected into a terminal of the resistance, R1. This current is generated in such as a manner to ensure that the current flowing in the output driver transistor M1 is relatively constant over a wide temperature range.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: October 23, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Andrew Marshall, Ching L. Lin, Jingwei Xu