Patents by Inventor Li-Wen Kuo

Li-Wen Kuo 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: 8294810
    Abstract: An assisting focusing method is applicable in an image capture device having an auto focusing (AF) procedure. The AF procedure has a preset sampling interval. The assisting focusing method includes the following steps. An image for focusing is captured. A face parameter of a face block in the image for focusing is calculated. According to the face parameter, a parameter-to-focus conversion table is looked up to acquire a focusing section. According to the focusing section and a face sampling interval, the AF procedure is performed to acquire a target focus. The face sampling interval is smaller than the preset sampling interval.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: October 23, 2012
    Assignee: Altek Corporation
    Inventors: Chih-Pin Yen, Chia-Lun Tsai, Li-Wen Kuo
  • Patent number: 8269856
    Abstract: An automatic focusing system in a low-illumination setting and a method using the same are disclosed. Through a selection of the memory bits and a tone adjustment, an automatic focusing could be precisely achieved. According to one embodiment, a lens module and an image sensor are firstly used for generating the digital image signals. Next, a gain adjustment unit is introduced to adjusting the gain of the signals, so as to reduce the noises. A memory bit retrieving unit is further used to retrieve the data from a plurality of memory bits. Next, a tone adjusting process is performed to raise the signals' contrast.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: September 18, 2012
    Assignee: Altek Corporation
    Inventors: Peng-Wei Lin, Li-Wen Kuo
  • Patent number: 8233787
    Abstract: A photographic device using a focus method includes a zoom lens, an image analyzing module, a focus distance providing module and a processing module. The zoom lens is used for capturing image information of a plurality of positions. The image analyzing module is used for analyzing contrast values of the image information of the plurality of positions. The focus distance providing module is used for providing a non-equivalent and a constant focus distance interval for capturing the image information of the plurality of positions. The processing module is electrically connected with the zoom lens, the image analyzing module, and the focus distance providing module. Whereby, the photographic device acquires the image information of the plurality of positions by the non-equivalent focus distance interval, acquires a coarse focus position, and acquires an accurate focus position by the constant focus distance according to the coarse focus position.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: July 31, 2012
    Assignee: Altek Corporation
    Inventors: Chih-Pin Yen, Chia-Lun Tsai, Li-Wen Kuo
  • Publication number: 20120019709
    Abstract: A method using multiple face blocks for assisting focusing is applicable in an image capture device. The assisting focusing method includes the following steps. A focusing image is captured individually at a focusing distance. The focusing image has a plurality of face blocks. The face blocks in the focusing image are detected. Clarities of the face blocks in the focusing image are calculated with the image capture device. A face focal length corresponding to the face block is calculated according to the clarity corresponding to the face block. A target focal length is obtained according to the face focal length.
    Type: Application
    Filed: July 21, 2010
    Publication date: January 26, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Chih Pin Yen, Chia Lun Tsai, Li Wen Kuo
  • Publication number: 20120008038
    Abstract: An assisting focusing method is applicable in an image capture device having an auto focusing (AF) procedure. The AF procedure has a preset sampling interval. The assisting focusing method includes the following steps. An image for focusing is captured. A face parameter of a face block in the image for focusing is calculated. According to the face parameter, a parameter-to-focus conversion table is looked up to acquire a focusing section. According to the focusing section and a face sampling interval, the AF procedure is performed to acquire a target focus. The face sampling interval is smaller than the preset sampling interval.
    Type: Application
    Filed: July 9, 2010
    Publication date: January 12, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Chih Pin Yen, Chia Lun Tsai, Li Wen Kuo
  • Publication number: 20110194848
    Abstract: A focus method and a photographic device using the method are disclosed. The photographic device comprises a zoom lens, an image analyzing module, a focus distance providing module and a processing module. The zoom lens is used for capturing image information of a plurality of positions; the image analyzing module is used for analyzing contrast values of the image information of the plurality of positions; the focus distance providing module is used for providing a non-equivalent and a constant focus distance interval for capturing the image information of the plurality of positions; and the processing module is electrically connected with the zoom lens, the image analyzing module, and the focus distance providing module. Whereby, the photographic device acquires the image information of the plurality of positions by the non-equivalent focus distance interval and acquires a coarse focus position, and acquires an accurate focus position by the constant focus distance according to the coarse focus position.
    Type: Application
    Filed: December 9, 2010
    Publication date: August 11, 2011
    Inventors: Chih-Pin Yen, Chia-Lun Tsai, Li-Wen Kuo
  • Publication number: 20110085053
    Abstract: An automatic focusing system in a low-illumination setting and a method using the same are disclosed. Through a selection of the memory bits and a tone adjustment, an automatic focusing could be precisely achieved. According to one embodiment, a lens module and an image sensor are firstly used for generating the digital image signals. Next, a gain adjustment unit is introduced to adjusting the gain of the signals, so as to reduce the noises. A memory bit retrieving unit is further used to retrieve the data from a plurality of memory bits. Next, a tone adjusting process is performed to raise the signals' contrast.
    Type: Application
    Filed: June 15, 2010
    Publication date: April 14, 2011
    Applicant: Altek Corporation
    Inventors: Peng-Wei Lin, Li-Wen Kuo
  • Publication number: 20070172089
    Abstract: A headset assembly comprises a main body, connecting mechanism and a container. The main body comprises two hanging portions and a storage portion. The hanging portions are bent to adjust the main body size for fitting a wearer. The connecting mechanism provides the main body to connect to the container. Moreover, the container is rotatable in the storage portion for adjusting a power line.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 26, 2007
    Inventor: Li-Wen Kuo