Patents by Inventor Shu-Chien Cheng

Shu-Chien Cheng 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).

  • Patent number: 9404787
    Abstract: A level measuring device with an integratable lens has a radar level meter and an angle adjusting assembly. The radar level meter has a horn antenna and a lens antenna assembly mounted on a signal transceiving end of the radar level meter. The lens antenna assembly has a housing and a lens antenna. The housing is hollow and receives the horn antenna therein. One end of the housing is connected to the lens antenna, and the other end of the housing is connected to the signal transceiving end of the radar level meter. The angle adjustment assembly is mounted around the housing. As the lens antenna assembly covers the horn antenna, the horn antenna is less likely to be damaged. Additionally, the housing of the lens antenna assembly is connected with the angle adjusting assembly for angle adjustment of the combined horn antenna and lens antenna assembly.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: August 2, 2016
    Assignee: FINETEK CO., LTD.
    Inventors: Shu-Chien Cheng, Chien-Lung Huang, Tzu-Chuan Tsai, Yao-Chen Yu, Ting-Kuo Wu, Chao-Kai Cheng
  • Patent number: 9341509
    Abstract: An FMCW radar level meter has an RF signal processing module, an intermediate frequency (IF) signal processing module, and a computation and display module. A signal generator of the RF signal processing module generates a first RF signal, which is radiated by an antenna to a measured object. The antenna received a second RF signal reflected by the measured object. The IF signal processing module processes the second RF signal and compares the first RF signal with the second RF signal. The computation and display module calculates and displays a distance between the FMCW radar level meter and the measured object. Using the RF signal processing module and the IF signal processing module to process the second RF signal, the issues of noise and temperature coefficient shift can be resolved.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: May 17, 2016
    Assignee: FINETEK CO., LTD.
    Inventors: I-Chu Lin, Shu-Chien Cheng, Yi-Yan Lee, Hui-Chih Hsu, Chao-Kai Cheng
  • Patent number: 9246227
    Abstract: The present invention relates to a horn antenna device. The horn antenna device has a step-shaped signal feed-in apparatus and a conical horn antenna. The step-shaped signal feed-in apparatus has a stepped body having multiple stairs and a connecting pin. The stepped body is adapted to radiate electromagnetic waves and receive a reflection of the electromagnetic waves. According to the structure of the step-shaped signal feed-in apparatus of the invention, the resonating modes are easy to be determined. The directivity and the signal-to-noise rate are improved. In addition, the connecting pin is directly connected to the stairs for improving the signal stability of the horn antenna device.
    Type: Grant
    Filed: July 28, 2013
    Date of Patent: January 26, 2016
    Assignee: FINETEK CO., LTD.
    Inventors: Shu-Chien Cheng, I-Chu Lin, Yi-Yan Lee, Tzu-Chuan Tsai, Chao-Kai Cheng
  • Publication number: 20150241261
    Abstract: A level measuring device with an integratable lens has a radar level meter and an angle adjusting assembly. The radar level meter has a horn antenna and a lens antenna assembly mounted on a signal transceiving end of the radar level meter. The lens antenna assembly has a housing and a lens antenna. The housing is hollow and receives the horn antenna therein. One end of the housing is connected to the lens antenna, and the other end of the housing is connected to the signal transceiving end of the radar level meter. The angle adjustment assembly is mounted around the housing. As the lens antenna assembly covers the horn antenna, the horn antenna is less likely to be damaged. Additionally, the housing of the lens antenna assembly is connected with the angle adjusting assembly for angle adjustment of the combined horn antenna and lens antenna assembly.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 27, 2015
    Applicant: FINETEK CO., LTD.
    Inventors: Shu-Chien Cheng, Chien-Lung Huang, Tzu-Chuan Tsai, Yao-Chen Yu, Ting-Kuo Wu, Chao-Kai Cheng
  • Publication number: 20150033844
    Abstract: A measuring method for a frequency modulation continuous wave radar level meter is performed after presetting a previous-cycle weight and a current-cycle weight and acquiring a measured result in a previous cycle, and has steps of constantly transmitting a frequency modulation (FM) signal and receiving multiple reflected signals, obtaining a frequency difference between the FM signal and each reflected signal, selecting a characteristic frequency from a frequency spectrum, and calculating a measured result in the current cycle taken as the measured result in the previous cycle for calculating a measured result in a next cycle with a sum of a product of the measured result in the previous cycle and the previous-cycle weight and a product of a distance corresponding to the characteristic frequency so as to reduce variations of the measured result in each cycle and facilitate statistical analysis.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicant: FINETEK CO., LTD.
    Inventors: Jia-Hung CHEN, Shu-Chien CHENG, Chao-Kai CHENG, Yi-Wei LIU
  • Publication number: 20150035695
    Abstract: An FMCW radar level meter has an RF signal processing module, an intermediate frequency (IF) signal processing module, and a computation and display module. A signal generator of the RF signal processing module generates a first RF signal, which is radiated by an antenna to a measured object. The antenna received a second RF signal reflected by the measured object. The IF signal processing module processes the second RF signal and compares the first RF signal with the second RF signal. The computation and display module calculates and displays a distance between the FMCW radar level meter and the measured object. Using the RF signal processing module and the IF signal processing module to process the second RF signal, the issues of noise and temperature coefficient shift can be resolved.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 5, 2015
    Applicant: Finetek Co., Ltd.
    Inventors: I-Chu Lin, Shu-Chien Cheng, Yi-Yan Lee, Hui-Chih Hsu, Chao-Kai Cheng
  • Publication number: 20150029065
    Abstract: The present invention relates to a horn antenna device. The horn antenna device has a step-shaped signal feed-in apparatus and a conical horn antenna. The step-shaped signal feed-in apparatus has a stepped body having multiple stairs and a connecting pin. The stepped body is adapted to radiate electromagnetic waves and receive a reflection of the electromagnetic waves. According to the structure of the step-shaped signal feed-in apparatus of the invention, the resonating modes are easy to be determined. The directivity and the signal-to-noise rate are improved. In addition, the connecting pin is directly connected to the stairs for improving the signal stability of the horn antenna device.
    Type: Application
    Filed: July 28, 2013
    Publication date: January 29, 2015
    Applicant: FINETEK CO., LTD.
    Inventors: Shu-Chien Cheng, I-Chu Lin, Yi-Yan Lee, Tzu-Chuan Tsai, Chao-Kai Cheng