Patents by Inventor Chih-Chiang Chao

Chih-Chiang Chao 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: 9497547
    Abstract: A speaker structure includes a main body, a circuit board and a magnetic component. The main body has a receiving section and a recess formed on an outer circumference of the receiving section. A center of the main body is formed with a hole in communication with the receiving section. The circuit board has a board body and an outer frame body inlaid in the recess of the main body. The magnetic component is received in the hole. A voice coil collar is disposed around the magnetic component. Multiple windings are wound around a surface of the voice coil collar. Two ends of the windings are attached to the circuit board. According to the above arrangement, the volume of the speaker structure is greatly reduced and the manufacturing cost of the speaker structure is lowered.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: November 15, 2016
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Mao-Lin Chen, Chih-Chiang Chao
  • Patent number: 9291169
    Abstract: A fan motor control device includes a zero-crossing detection unit, a phase control unit, an operation processing unit, a first rectifier element and a second rectifier element. The zero-crossing unit generates a synchronization reference signal to the phase control unit, which in turn generates a phase control signal to the operation processing unit. According to the received phase control unit, the operation processing unit generates a motor-starting processing signal to the first and the second rectifier element for driving a fan motor to rotate. Since the phase control unit provides the effect of controlling the fan motor's output power and rotational speed, it enables the fan to have increased rotational speed and provide improved heat dissipation and ventilation effects.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: March 22, 2016
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Mao-Lin Chen, Chih-Chiang Chao
  • Publication number: 20150159663
    Abstract: A fan motor control device includes a zero-crossing detection unit, a phase control unit, an operation processing unit, a first rectifier element and a second rectifier element. The zero-crossing unit generates a synchronization reference signal to the phase control unit, which in turn generates a phase control signal to the operation processing unit. According to the received phase control unit, the operation processing unit generates a motor-starting processing signal to the first and the second rectifier element for driving a fan motor to rotate. Since the phase control unit provides the effect of controlling the fan motor's output power and rotational speed, it enables the fan to have increased rotational speed and provide improved heat dissipation and ventilation effects.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 11, 2015
    Applicant: Asia Vital Components Co., Ltd.
    Inventors: Mao-Lin Chen, Chih-Chiang Chao
  • Patent number: 9046631
    Abstract: A light guiding plate and a light guiding device are provided, and the light guiding plate is implemented in the light guiding device. The light guiding device includes a side light source emitting light to the light guiding plate. The light guiding plate includes a first surface, a second surface and a third surface. The second surface is opposite to the first surface, and the third surface is adjacent to the first surface and the second surface. The second surface includes plural light guiding units, and each of the light guiding units includes a total reflection concavity and a light emitting convexity. The light emitting convexity surrounds the total reflection concavity.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: June 2, 2015
    Assignee: Industrial Technology Research Instiute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Mei-Chun Lai
  • Publication number: 20150055818
    Abstract: A speaker structure includes a main body, a circuit board and a magnetic component. The main body has a receiving section and a recess formed on an outer circumference of the receiving section. A center of the main body is formed with a hole in communication with the receiving section. The circuit board has a board body and an outer frame body inlaid in the recess of the main body. The magnetic component is received in the hole. A voice coil collar is disposed around the magnetic component. Multiple windings are wound around a surface of the voice coil collar. Two ends of the windings are attached to the circuit board. According to the above arrangement, the volume of the speaker structure is greatly reduced and the manufacturing cost of the speaker structure is lowered.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Mao-Lin Chen, Chih-Chiang Chao
  • Publication number: 20150016148
    Abstract: A light guiding plate and a light guiding device are provided, and the light guiding plate is implemented in the light guiding device. The light guiding device includes a side light source emitting light to the light guiding plate. The light guiding plate includes a first surface, a second surface and a third surface. The second surface is opposite to the first surface, and the third surface is adjacent to the first surface and the second surface. The second surface includes plural light guiding units, and each of the light guiding units includes a total reflection concavity and a light emitting convexity. The light emitting convexity surrounds the total reflection concavity.
    Type: Application
    Filed: December 5, 2013
    Publication date: January 15, 2015
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chiang CHAO, Po-Ling SHIAO, Mei-Chun LAI
  • Patent number: 8596854
    Abstract: A light-guide module including a light-guide sheet and a light source is provided. The light-guide sheet includes a light-emergent region and a plurality of localized micro-structures located at a first surface of the light-guide sheet, wherein the localized micro-structures are distributed except the light-emergent region. The localized micro-structures include a plurality of arc grooves disposed on a first region. The light source includes a plurality of light-emitting devices. A light-emergent area of each of the light-emitting devices is A. In the localized micro-structures of the first region covered by the light-emitting devices, an area occupied by the arc grooves having aspect ratios greater than 0.5 is greater than or substantially equal to 0.5 A.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: December 3, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Po-Ling Shiao, Chih-Chiang Chao, Mei-Chun Lai
  • Patent number: 8460585
    Abstract: An optical diffusion structure includes an optical diffusion structure comprising a plurality of convex portions and a plurality of concave portions. Each convex portion is adjacent to a plurality of concave portions and each concave portion is adjacent to a plurality of convex portions. The convex portions, the concave portions and each junction of the convex and concave portions have a curvature different from 0. The optical diffusion structure further includes a diffusion plate having a first surface, wherein the optical diffusion structure is formed on the first surface, and the convex portions are arranged in a two dimensional array along a first direction and a second direction, and the concave portions are arranged in a two dimensional array along a third direction and a fourth direction.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: June 11, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng
  • Publication number: 20130100663
    Abstract: A light-guide module including a light-guide sheet and a light source is provided. The light-guide sheet includes a light-emergent region and a plurality of localized micro-structures located at a first surface of the light-guide sheet, wherein the localized micro-structures are distributed except the light-emergent region. The localized micro-structures include a plurality of arc grooves disposed on a first region. The light source includes a plurality of light-emitting devices. A light-emergent area of each of the light-emitting devices is A. In the localized micro-structures of the first region covered by the light-emitting devices, an area occupied by the arc grooves having aspect ratios greater than 0.5 is greater than or substantially equal to 0.5 A.
    Type: Application
    Filed: July 16, 2012
    Publication date: April 25, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Ling Shiao, Chih-Chiang Chao, Mei-Chun Lai
  • Patent number: 8210714
    Abstract: An Illuminant module includes an optical film and a light source array. The optical array includes a plurality of concave surfaces and a plurality of convex surfaces alternatively arranged along at least one direction, wherein each concave surface has a concave surface width along the at least one direction, and each convex surface has a convex surface width along the at least one direction. The light source array includes a plurality of light emitting diodes, wherein the concave surface width is not equal to the convex surface width, and the light from the light source array penetrates the optical film.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: July 3, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Mei-Chun Lai
  • Patent number: 8198128
    Abstract: The invention provides a method for fabricating a nano-array comprising the following steps. A template with a plurality of nano-holes is provided. A polymer is embossed by the template to integrally form a plurality of nano-protrusions thereon, and demolding to reveal the nano-protrusions. The nano-protrusion has a concave or convex top surface.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: June 12, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Mei-Chun Lai
  • Patent number: 7940461
    Abstract: An optical diffusion module comprises a first diffusion structure comprising a plurality of convex portions and a plurality of concave portions arranged alternatingly, and a second diffusion structure comprising a plurality of convex portions and a plurality of concave portions arranged alternatingly. Light from a light source passes through the first diffusion structure and the second diffusion structure sequentially, and each convex portion is adjacent to a plurality of concave portions and each concave portion is adjacent to a plurality of convex portions, and the convex portions, the concave portions and each junction of the convex and concave portions have a curvature different from 0.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: May 10, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Cheng-Hsuan Lin, Mei Chun Lai
  • Patent number: 7911700
    Abstract: A light guiding film is provided including a main body, and a light diffusion structure comprising a plurality of micro concave lenses arranged in a first direction and a second direction to form a second dimensional array and the curvature of each concave lens and the junction of the concave lenses are different from zero. Light from a light source passes through the light diffusion structure and is refracted into the main body and then propagates in the main body by total reflection.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: March 22, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Mei-Chun Lai
  • Publication number: 20100264555
    Abstract: An optical diffusion structure includes an optical diffusion structure comprising a plurality of convex portions and a plurality of concave portions. Each convex portion is adjacent to a plurality of concave portions and each concave portion is adjacent to a plurality of convex portions. The convex portions, the concave portions and each junction of the convex and concave portions have a curvature different from 0. The optical diffusion structure further includes a diffusion plate having a first surface, wherein the optical diffusion structure is formed on the first surface, and the convex portions are arranged in a two dimensional array along a first direction and a second direction, and the concave portions are arranged in a two dimensional array along a third direction and a fourth direction.
    Type: Application
    Filed: June 30, 2010
    Publication date: October 21, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Cheng-Hsuan Lin, Mei Chun Lai
  • Patent number: 7789548
    Abstract: An optical diffusion structure includes an optical diffusion structure comprising a plurality of convex portions and a plurality of concave portions. Each convex portion is adjacent to a plurality of concave portions and each concave portion is adjacent to a plurality of convex portions. The convex portions, the concave portions and each junction of the convex and concave portions have a curvature different from 0. The optical diffusion structure further includes a diffusion plate having a first surface, wherein the optical diffusion structure is formed on the first surface, and the convex portions are arranged in a two dimensional array along a first direction and a second direction, and the concave portions are arranged in a two dimensional array along a third direction and a fourth direction.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: September 7, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Cheng-Hsuan Lin, Mei Chun Lai
  • Publication number: 20100120196
    Abstract: The invention provides a method for fabricating a nano-array comprising the following steps. A template with a plurality of nano-holes is provided. A polymer is embossed by the template to integrally form a plurality of nano-protrusions thereon, and demolding to reveal the nano-protrusions. The nano-protrusion has a concave or convex top surface.
    Type: Application
    Filed: December 1, 2009
    Publication date: May 13, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Mei-Chun Lai
  • Patent number: 7711223
    Abstract: A composite light guiding film module is disclosed, which includes: a light guiding film; a light diffusion structure comprising a plurality of micro concave lenses arranged in a first direction and a second direction to form a second dimensional array and the curvature of each concave lens and the junction of the concave lenses are not equal to zero; and a refraction element comprising at least one refraction structure, wherein light from a light source passes through the refraction element and is refracted to the light diffusion structure, and the light passing through the light diffusion structure is refracted into the light guiding film and then propagates in the light guiding film by total reflection.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: May 4, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Mei-Chun Lai
  • Publication number: 20100053954
    Abstract: An Illuminant module includes an optical film and a light source array. The optical array includes a plurality of concave surfaces and a plurality of convex surfaces alternatively arranged along at least one direction, wherein each concave surface has a concave surface width along the at least one direction, and each convex surface has a convex surface width along the at least one direction. The light source array includes a plurality of light emitting diodes, wherein the concave surface width is not equal to the convex surface width, and the light from the light source array penetrates the optical film.
    Type: Application
    Filed: January 14, 2009
    Publication date: March 4, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Mei-Chun Lai
  • Patent number: 7656584
    Abstract: A composite lens structure is disclosed. The composite lens structure includes a diffusion plate and an optical structure formed on the diffusion plate. The optical structure includes a plurality of convex portions arranged in a 2-D matrix along a first direction and a second direction and a plurality of concave portions arranged in a 2-D matrix also along the first direction and the second direction. Each convex portion adjacent to a plurality of concave portions includes a low curvature portion and a high curvature portion higher than the low curvature portion. Each concave portion adjacent to a plurality of convex portions includes a low curvature portion and a high curvature portion lower than the low curvature portion. The convex portions, the concave portions and each junction of the convex portion and the concave portion have a curvature different from 0.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: February 2, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Cheng-Hsuan Lin, Mei-Chun Lai
  • Patent number: 7649198
    Abstract: The invention provides a method for fabricating a nano-array comprising the following steps. A template with a plurality of nano-holes is provided. A polymer is embossed by the template to integrally form a plurality of nano-protrusions thereon, and demolding to reveal the nano-protrusions. The nano-protrusion has a concave or convex top surface.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: January 19, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Mei-Chun Lai