Patents by Inventor Chia Ching Chang Chien

Chia Ching Chang Chien 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: 20180031790
    Abstract: An optical coupling structure and an optical communication apparatus using the same are provided. The optical coupling structure includes a light incident portion, a light splitting portion, a first light emitting portion, and a second light emitting portion. An initial optical signal entering the optical coupling structure through the light incident portion is divided into a first beam and second beam by the light splitting portion, which includes a first reflective surface and a second reflective surface, and the slopes of the first and second reflective surfaces are both positive or both negative. The first beam is converted by the first light emitting portion into a first optical signal for transmitting to an optical transmission unit. The second beam is converted by the second light emitting portion into a second optical signal for transmitting to a photodetector.
    Type: Application
    Filed: March 29, 2017
    Publication date: February 1, 2018
    Inventors: CHENG-TA CHEN, CHIA-HAO HSIEH, CHIA-CHING CHANG CHIEN
  • Patent number: 9854141
    Abstract: A thin optical imaging module of a biometric apparatus includes a first glass substrate, a first optical prism film, a second optical prism film, and an image sensor. The first glass substrate further includes a fingerprint imaging area, a vein imaging area, a contact surface, a reflective interface, and an attaching surface. The first optical prism film adhered to the attaching surface is located under the fingerprint imaging area. The second optical prism film is adhered to a position under the first optical prism film. The image sensor disposed in correspondence to the first glass substrate is located under the attaching surface.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 26, 2017
    Assignee: TrueLight Corporation
    Inventors: Chia Ching Chang Chien, Chih Cheng Chen, Zhi Kuei Huang, Jin Shan Pan
  • Patent number: 9830498
    Abstract: A biometric authentication device uses IR-VCSELs as light sources for performing biometric authentication by providing clear images. A light guide module is introduced to minimize the size of the device. Moreover, the biometric authentication device uses a single image sensing module to gather a vein image and a fingerprint image into the same detection signal which is then analyzed and compared with the pre-stored vein feature data and fingerprint feature data.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: November 28, 2017
    Assignee: TrueLight Corporation
    Inventors: Jin Shan Pan, Chih Cheng Chen, Chia Ching Chang Chien
  • Publication number: 20160227081
    Abstract: A thin optical imaging module of a biometric apparatus includes a first glass substrate, a first optical prism film, a second optical prism film, and an image sensor. The first glass substrate further includes a fingerprint imaging area, a vein imaging area, a contact surface, a reflective interface, and an attaching surface. The first optical prism film adhered to the attaching surface is located under the fingerprint imaging area. The second optical prism film is adhered to a position under the first optical prism film. The image sensor disposed in correspondence to the first glass substrate is located under the attaching surface.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 4, 2016
    Applicant: TrueLight Corporation
    Inventors: Chia Ching CHANG CHIEN, Chih Cheng CHEN, Zhi Kuei HUANG, Jin Shan PAN
  • Publication number: 20160104028
    Abstract: A biometric authentication device uses IR-VCSELs as light sources for performing a better biometric authentication by providing clearer images. A light guide module is introduced to minimize the size of the device. Moreover, the biometric authentication device uses a single image sensing module to gather the vein image and the fingerprint image into the same detection signal which is then analyzed and compared with the pre-stored vein feature data and fingerprint feature data. Therefore, the biometric authentication device can achieve an approach in lowering hardware costs, simplifying circuit designs and providing an outstanding performance.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 14, 2016
    Applicant: TrueLight Corporation
    Inventors: Jin Shan Pan, Chih Cheng Chen, Chia Ching Chang Chien
  • Patent number: 9245164
    Abstract: A biometric authentication device uses IR-VCSELs as light sources for performing a better biometric authentication by providing clearer images. A light guide module is introduced to minimize the size of the device. Moreover, the biometric authentication device uses a single image sensing module to gather the vein image and the fingerprint image into the same detection signal which is then analyzed and compared with the pre-stored vein feature data and fingerprint feature data. Therefore, the biometric authentication device can achieve an approach in lowering hardware costs, simplifying circuit designs and providing an outstanding performance.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: January 26, 2016
    Assignee: TrueLight Corporation
    Inventors: Jin Shan Pan, Chih Cheng Chen, Chia Ching Chang Chien
  • Publication number: 20140086459
    Abstract: A biometric authentication device uses IR-VCSELs as light sources for performing a better biometric authentication by providing clearer images. A light guide module is introduced to minimize the size of the device. Moreover, the biometric authentication device uses a single image sensing module to gather the vein image and the fingerprint image into the same detection signal which is then analyzed and compared with the pre-stored vein feature data and fingerprint feature data. Therefore, the biometric authentication device can achieve an approach in lowering hardware costs, simplifying circuit designs and providing an outstanding performance.
    Type: Application
    Filed: March 7, 2013
    Publication date: March 27, 2014
    Applicant: TrueLight Corporation
    Inventors: Jin Shan Pan, Chih Cheng Chen, Chia Ching Chang Chien