Patents by Inventor Chien-sheng Liu

Chien-sheng Liu 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: 20100076277
    Abstract: The present invention discloses a wireless bio-signal monitoring system for monitoring a patient's bio-signal. The system includes a bio-signal capture unit, an analysis unit, a wireless transmission unit, a receiver unit and a remote database. With a chaotic phase space difference algorithm, the consumption of system resources can be minimized and the power management of the monitoring system can be optimized. By capturing position coordinates of the receiver unit via the Internet, we can locate the position of the patient to provide medical treatments immediately in an emergency situation.
    Type: Application
    Filed: January 8, 2009
    Publication date: March 25, 2010
    Inventors: Chii-Wann LIN, Chien-Sheng Liu, Chin-Liang Liu, Ching-Hua He
  • Patent number: 7679225
    Abstract: A voice coil motor. At least one guide bar is connected to a fixed base. A coil is connected to the fixed base. A support base is movably fit on the guide bar. An annular magnetic member is connected to the support base and surrounded by the coil. A magnetization direction of the annular magnetic member parallels a moving direction of the support base and annular magnetic member. The annular magnetic member includes a first magnetic pole and a second magnetic pole. The first magnetic pole is disposed in the coil and separated from the bottom thereof. The second magnetic pole is disposed outside the coil. The coil interacts with the annular magnetic member to generate a first force, driving the support base and annular magnetic member to move along the magnetization direction of the annular magnetic member.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: March 16, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Sheng Liu, Po-Heng Lin, Yung-Hsing Wang, Shun-Sheng Ke, Meng-Che Tsai, Yu-Hsiu Chang
  • Publication number: 20100033031
    Abstract: A voice coil motor. A first coil is connected to a fixed base and includes a first winding portion and a second winding portion connected to and opposite the first winding portion. A second coil is connected to the fixed base and includes a third winding portion and a fourth winding portion connected to and opposite the third winding portion. A first magnetic member is connected to a support base and includes a first magnetic pole and a second magnetic pole. The first and second magnetic poles oppose the first and third winding portions, respectively. A second magnetic member is connected to the first magnetic member and includes a third magnetic pole and a fourth magnetic pole. The third magnetic pole opposes the second winding portion and abuts the first magnetic pole. The fourth magnetic pole opposes the fourth winding portion and abuts the second magnetic pole.
    Type: Application
    Filed: October 15, 2008
    Publication date: February 11, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Heng Lin, Chien-Sheng Liu, Shun-Sheng Ke, Yu-Hsiu Chang, Ji-Bin Horng
  • Patent number: 7652835
    Abstract: An optical device. A drive moving assembly includes a lens module and a drive coil. The drive coil surrounds the lens module and provides a central axis parallel to an optical axis of the lens module. A drive stator includes a housing, a magnetic member, and a yoke. The lens module is movably disposed in the housing. The magnetic member surrounds the drive coil and includes an opening. The yoke interacts with the magnetic member, generating a magnetic field. The magnetic member, yoke, and drive coil interact to move the drive moving assembly parallel to the optical axis. A brake coil is disposed in the opening. A braking resilient member is connected between the drive stator and the brake coil and disposed in the opening. The brake coil interacts with the magnetic member, yoke, and braking resilient member and detachably abuts the drive moving assembly.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: January 26, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Yung-Hsing Wang, Jin-Yu Lee, Meng-Che Tsai, Chien-Sheng Liu, Shun-Sheng Ke, Ying-Chi Cho
  • Patent number: 7638906
    Abstract: An actuator including at least one moving body, at least one fixed body and a connecting member is provided. The moving body is suitable for moving along a direction, and includes at least one coil. In addition, the fixed body includes a permanent magnet and a yoke, wherein the coil is disposed between the permanent magnet and the yoke, and the polarity direction of the permanent magnet is parallel to the moving direction of the moving body. Furthermore, the connecting member is used for connecting the moving body and the fixed body. The actuator meets the requirements of miniaturization, low power consumption and low cost.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: December 29, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Sheng Liu, Jin-Yu Lee, Yung-Hsing Wang, Meng-Che Tsai, Ying-Chi Chuo
  • Patent number: 7633190
    Abstract: A voice coil motor. A guide bar connects to a fixed base. A coil connects to the fixed base and includes a first winding portion and a second winding portion. A current direction in the first winding portion is opposite that in the second winding portion. A support base movably fits on the guide bar. A magnetic member connects to the support base and includes a first magnetic pole and a second magnetic pole. A magnetization direction of the magnetic member parallels a moving direction of the support base and magnetic member and is perpendicular to a central axis of the coil. The first and second magnetic poles respectively oppose the first and second winding portions of the coil. The first and second magnetic poles respectively interact with the first and second winding portions to generate a first force and a second force, moving the support base and magnetic member.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: December 15, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Sheng Liu, Po-Heng Lin, Shun-Sheng Ke, Yu-Hsiu Chang, Ji-Bin Horng
  • Publication number: 20090140581
    Abstract: A voice coil motor. A guide bar connects to a fixed base. A coil connects to the fixed base and includes a first winding portion and a second winding portion. A current direction in the first winding portion is opposite that in the second winding portion. A support base movably fits on the guide bar. A magnetic member connects to the support base and includes a first magnetic pole and a second magnetic pole. A magnetization direction of the magnetic member parallels a moving direction of the support base and magnetic member and is perpendicular to a central axis of the coil. The first and second magnetic poles respectively oppose the first and second winding portions of the coil. The first and second magnetic poles respectively interact with the first and second winding portions to generate a first force and a second force, moving the support base and magnetic member.
    Type: Application
    Filed: February 25, 2008
    Publication date: June 4, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien-Sheng Liu, Po-Heng Lin, Shun-Sheng Ke, Yu-Hsiu Chang, Ji-Bin Horng
  • Publication number: 20090118629
    Abstract: The present invention relates to a method for analyzing bio-signal instantaneously by Chaotic Phase Space Difference (CPSD) operation and its measure analyze device. This method includes time-delay procedure and rebuilt phase space matrix to calculate chaos of phase space matrix and diagnose the bio-signal. This method can also be used as an analyze method in portable device or 24 h ECG recorder which is a fast and convenient measure analyze device.
    Type: Application
    Filed: December 31, 2007
    Publication date: May 7, 2009
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Chii-Wann Lin, Tzn-Chien Hsiao, Chien-Sheng Liu
  • Publication number: 20080284255
    Abstract: A voice coil motor. At least one guide bar is connected to a fixed base. A coil is connected to the fixed base. A support base is movably fit on the guide bar. An annular magnetic member is connected to the support base and surrounded by the coil. A magnetization direction of the annular magnetic member parallels a moving direction of the support base and annular magnetic member. The annular magnetic member includes a first magnetic pole and a second magnetic pole. The first magnetic pole is disposed in the coil and separated from the bottom thereof. The second magnetic pole is disposed outside the coil. The coil interacts with the annular magnetic member to generate a first force, driving the support base and annular magnetic member to move along the magnetization direction of the annular magnetic member.
    Type: Application
    Filed: December 28, 2007
    Publication date: November 20, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien-Sheng Liu, Po-Heng Lin, Yung-Hsing Wang, Shun-Sheng Ke, Meng-Che Tsai, Yu-Hsiu Chang
  • Patent number: 7365922
    Abstract: An optical device. A lens module is movably disposed in a lens housing. A drive mechanism is connected to the lens module, driving the lens module along an optical axis of the lens module. A brake mechanism is disposed between the lens housing and the lens module and moves perpendicular to the optical axis, fixing and releasing the lens module. When the brake mechanism releases the lens module, the lens module moves along the optical axis.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: April 29, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Jin-Yu Lee, Yung-Hsing Wang, Chien-Sheng Liu, Meng-Che Tsai, Kun-Wei Lin, Ying-Chi Chuo
  • Publication number: 20080024016
    Abstract: An actuator including at least one moving body, at least one fixed body and a connecting member is provided. The moving body is suitable for moving along a direction, and includes at least one coil. In addition, the fixed body includes a permanent magnet and a yoke, wherein the coil is disposed between the permanent magnet and the yoke, and the polarity direction of the permanent magnet is parallel to the moving direction of the moving body. Furthermore, the connecting member is used for connecting the moving body and the fixed body. The actuator meets the requirements of miniaturization, low power consumption and low cost.
    Type: Application
    Filed: September 14, 2006
    Publication date: January 31, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien-Sheng Liu, Jin-Yu Lee, Yung-Hsing Wang, Meng-Che Tsai, Ying-Chi Chuo
  • Publication number: 20080010651
    Abstract: An optical device. A drive moving assembly includes a lens module and a drive coil. The drive coil surrounds the lens module and provides a central axis parallel to an optical axis of the lens module. A drive stator includes a housing, a magnetic member, and a yoke. The lens module is movably disposed in the housing. The magnetic member surrounds the drive coil and includes an opening. The yoke interacts with the magnetic member, generating a magnetic field. The magnetic member, yoke, and drive coil interact to move the drive moving assembly parallel to the optical axis. A brake coil is disposed in the opening. A braking resilient member is connected between the drive stator and the brake coil and disposed in the opening. The brake coil interacts with the magnetic member, yoke, and braking resilient member and detachably abuts the drive moving assembly.
    Type: Application
    Filed: October 4, 2006
    Publication date: January 10, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yung-Hsing Wang, Jin-Yu Lee, Meng-Che Tsai, Chien-Sheng Liu, Shun-Sheng Ke, Ying-Chi Cho
  • Publication number: 20070039015
    Abstract: An optical device. A lens module is movably disposed in a lens housing. A drive mechanism is connected to the lens module, driving the lens module along an optical axis of the lens module. A brake mechanism is disposed between the lens housing and the lens module and moves perpendicular to the optical axis, fixing and releasing the lens module. When the brake mechanism releases the lens module, the lens module moves along the optical axis.
    Type: Application
    Filed: November 8, 2005
    Publication date: February 15, 2007
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jin-Yu Lee, Yung-Hsing Wang, Chien-Sheng Liu, Meng-Che Tsai, Kun-Wei Lin, Ying-Chi Chuo
  • Publication number: 20060091750
    Abstract: A magnetic suspension bearing with damping system includes a stator having a stator magnetic unit mounted on the internal portion of the stator, and a rotor rotatably located at the stator. A rotor magnetic unit installed on the rotor corresponding to the stator magnetic. The rotor further has a yoke having a magnetic driving unit corresponding to the external portion of the stator. A magnetic damping device located has a magnetic unit and an elastic unit, wherein the magnetic unit corresponding to the magnetic driving unit generates magnetic force between them, and the elastic unit coupled below the magnetic unit uses to reduce the vibration of the magnetic unit for maintaining the rotation of the rotor smooth and steady.
    Type: Application
    Filed: November 4, 2004
    Publication date: May 4, 2006
    Inventors: Chien-chang Wang, Pi-cheng Tung, Ren-bin Xiao, Wei-cheng Chen, Chien-sheng Liu, Yu-hsiu Chang, Der-ray Huang
  • Patent number: 7038341
    Abstract: A magnetic suspension bearing with damping system includes a stator having a stator magnetic unit mounted on the internal portion of the stator, and a rotor rotatably located at the stator. A rotor magnetic unit installed on the rotor corresponding to the stator magnetic. The rotor further has a yoke having a magnetic driving unit corresponding to the external portion of the stator. A magnetic damping device located has a magnetic unit and an elastic unit, wherein the magnetic unit corresponding to the magnetic driving unit generates magnetic force between them, and the elastic unit coupled below the magnetic unit uses to reduce the vibration of the magnetic unit for maintaining the rotation of the rotor smooth and steady.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: May 2, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-chang Wang, Pi-cheng Tung, Ren-bin Xiao, Wei-cheng Chen, Chien-sheng Liu, Yu-hsiu Chang, Der-ray Huang