Patents by Inventor Yi-Tsung Cheng

Yi-Tsung 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: 8525918
    Abstract: A portable electronic device and an autofocus control method of a camera of the portable electronic device are disclosed. The portable electronic device provides a G-sensor to detect the orientation of the portable electronic device, and provides a storage unit to store autofocus lookup tables for different orientations of the portable electronic device, respectively. According to orientation information from the G-sensor, the central processing unit of the portable electronic device selects one autofocus lookup table from the storage unit and thereby generates an actuating signal for a focus model. The focus model of the portable electronic device is actuated by the actuating signal to adjust an image distance between a lens module and an image sensor of the camera.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: September 3, 2013
    Assignee: HTC Corporation
    Inventors: Li-Yin Chen, Chun-Ta Lin, Yi-Tsung Cheng
  • Patent number: 8411882
    Abstract: An electronic device is provided. The electronic device includes a housing and an electro-acoustic transducer disposed on the inner surface of the housing. The electro-acoustic transducer includes an electret diaphragm, a conductive plate and at least one spacer. The electret diaphragm is positioned on the inner surface of the housing and has a film body and an electrode layer. The film body has static charges and the electrode layer is formed on the lower surface of the film body. The conductive plate has a plurality of openings and is stacked on the upper surface of the film body. The spacer is positioned between the electret diaphragm and the conductive plate to keep a predetermined distance therebetween.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: April 2, 2013
    Assignee: HTC Corporation
    Inventors: Fang Ching Lee, Yi Tsung Cheng, Chih Chao Hsieh
  • Patent number: 8306247
    Abstract: The invention provides an electronic device and an electro-acoustic transducer thereof. The electronic device includes a main body and an electro-acoustic transducer carried by the main body. The electro-acoustic transducer includes a first electret diaphragm, a second electret diaphragm and a plate. The first electret diaphragm generates vibrations according to a first electrical signal and the second electret diaphragm generates vibrations according to a second electrical signal. The plate includes a plurality of holes formed thereon and is disposed between the first electret diaphragm and the second electret diaphragm. Additionally, the electronic device further includes a decorative layer formed on the first or the second electret diaphragm.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: November 6, 2012
    Assignee: HTC Corporation
    Inventors: Fang-Ching Lee, Yi-Tsung Cheng
  • Publication number: 20120268645
    Abstract: A portable electronic device and an autofocus control method of a camera of the portable electronic device are disclosed. The portable electronic device provides a G-sensor to detect the orientation of the portable electronic device, and provides a storage unit to store autofocus lookup tables for different orientations of the portable electronic device, respectively. According to orientation information from the G-sensor, the central processing unit of the portable electronic device selects one autofocus lookup table from the storage unit and thereby generates an actuating signal for a focus model. The focus model of the portable electronic device is actuated by the actuating signal to adjust an image distance between a lens module and an image sensor of the camera.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 25, 2012
    Inventors: Li-Yin CHEN, Chun-Ta Lin, Yi-Tsung Cheng
  • Patent number: 7969506
    Abstract: A cradle for connecting to a portable electronic apparatus is described. The cradle includes an AC adapter connector, a USB connector, a mini USB plug, and a USB signal detecting circuit. The USB connector is used to connect to a USB interface of a computer. The mini USB plug is used to connect to the portable electronic apparatus. The USB signal detecting circuit detects the USB_D+ and the USB_D? of the USB connector. When the computer is suspended from an operating state, the portable electronic apparatus is charged by the AC adapter through the mini USB plug. When the computer resumes normal operation, the USB connection between the portable electronic apparatus and the computer is automatically reestablished.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: June 28, 2011
    Assignee: HTC Corporation
    Inventors: Yi-Tsung Cheng, Chia-Hsing Liao, Hsiu-Hung Chou, Guo-Bin Fang, Chih-Chung Teng, Yu-Ping Hsu
  • Publication number: 20100111335
    Abstract: An electronic device is provided. The electronic device includes a housing and an electro-acoustic transducer disposed on the inner surface of the housing. The electro-acoustic transducer includes an electret diaphragm, a conductive plate and at least one spacer. The electret diaphragm is positioned on the inner surface of the housing and has a film body and an electrode layer. The film body has static charges and the electrode layer is formed on the lower surface of the film body. The conductive plate has a plurality of openings and is stacked on the upper surface of the film body. The spacer is positioned between the electret diaphragm and the conductive plate to keep a predetermined distance therebetween.
    Type: Application
    Filed: September 15, 2009
    Publication date: May 6, 2010
    Applicant: HTC Corporation
    Inventors: Fang Ching Lee, Yi Tsung Cheng, Chih Chao Hsieh
  • Publication number: 20100088530
    Abstract: A cradle for connecting to a portable electronic apparatus is described. The cradle includes an AC adapter connector, a USB connector, a mini USB plug, and a USB signal detecting circuit. The USB connector is used to connect to a USB interface of a computer. The mini USB plug is used to connect to the portable electronic apparatus. The USB signal detecting circuit detects the USB_D+ and the USB_D? of the USB connector. When the computer is suspended from an operating state, the portable electronic apparatus is charged by the AC adapter through the mini USB plug. When the computer resumes normal operation, the USB connection between the portable electronic apparatus and the computer is automatically reestablished.
    Type: Application
    Filed: December 8, 2009
    Publication date: April 8, 2010
    Applicant: HTC CORPORATION
    Inventors: Yi-Tsung CHENG, Chia-Hsing LIAO, Hsiu-Hung CHOU, Guo-Bin FANG, Chih-Chung TENG, Yu-Ping HSU
  • Patent number: 7675571
    Abstract: A cradle for connecting to a portable electronic apparatus is described. The cradle includes an AC adapter connector, a USB connector, a mini USB plug, and a USB signal detecting circuit. The USB connector is used to connect to a USB interface of a computer. The mini USB plug is used to connect to the portable electronic apparatus. The USB signal detecting circuit detects the USB_D+ and the USB_D? of the USB connector. When the computer is suspended from an operating state, the portable electronic apparatus is charged by the AC adapter through the mini USB plug. When the computer resumes normal operation, the USB connection between the portable electronic apparatus and the computer is automatically reestablished.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: March 9, 2010
    Assignee: HTC Corporation
    Inventors: Yi-Tsung Cheng, Chia-Hsing Liao, Hsiu-Hung Chou, Guo-Bin Fang, Chih-Chung Teng, Yu-Ping Hsu
  • Publication number: 20100027818
    Abstract: The invention provides an electronic device and an electro-acoustic transducer thereof. The electronic device includes a main body and an electro-acoustic transducer carried by the main body. The electro-acoustic transducer includes a first electret diaphragm, a second electret diaphragm and a plate. The first electret diaphragm generates vibrations according to a first electrical signal and the second electret diaphragm generates vibrations according to a second electrical signal. The plate includes a plurality of holes formed thereon and is disposed between the first electret diaphragm and the second electret diaphragm. Additionally, the electronic device further includes a decorative layer formed on the first or the second electret diaphragm.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 4, 2010
    Inventors: Fang-Ching Lee, Yi-Tsung Cheng
  • Patent number: 7495657
    Abstract: A keyboard includes a key module comprising at least one key cell with an output end which is selectively connected to a first voltage or a second voltage, a detect circuit electrically connected to the output end of the key cell for generating a control signal whenever the voltage on the output end of the key cell becomes the second voltage or the first voltage, a parallel-to-serial register electrically connected to the output end of the key module, and a processor electrically connected to the parallel-to-serial register and the detect circuit for controlling the parallel-to-serial register according to the control signal.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: February 24, 2009
    Assignee: HTC Corporation
    Inventor: Yi-Tsung Cheng
  • Patent number: 7448917
    Abstract: A connector for connecting a host and a peripheral device is disclosed. The connector includes N pin groups and each of the N pin groups has different pin length, wherein N is a positive integer and is greater than or equal to 3. The first pin group consists of ground pins and has the longest pin length.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: November 11, 2008
    Assignee: HTC Corporation
    Inventors: Yu-Jing Liao, Yao-Chung Lin, Yi-Tsung Cheng, Wei-Chih Chang, Yu-Chun Peng, Cheng-Hsi Liu
  • Publication number: 20070218725
    Abstract: A connector for connecting a host and a peripheral device is disclosed. The connector includes N pin groups and each of the N pin groups has different pin length, wherein N is a positive integer and is greater than or equal to 3. The first pin group consists of ground pins and has the longest pin length.
    Type: Application
    Filed: January 10, 2007
    Publication date: September 20, 2007
    Applicant: HIGH TECH COMPUTER, CORP.
    Inventors: Yu-Jing Liao, Yao-Chung Lin, Yi-Tsung Cheng, Wei-Chih Chang, Yu-Chun Peng, Cheng-Hsi Liu
  • Publication number: 20070005840
    Abstract: A cradle for connecting to a portable electronic apparatus is described. The cradle includes an AC adapter connector, a USB connector, a mini USB plug, and a USB signal detecting circuit. The USB connector is used to connect to a USB interface of a computer. The mini USB plug is used to connect to the portable electronic apparatus. The USB signal detecting circuit detects the USB_D+ and the USB_D? of the USB connector. When the computer is suspended from an operating state, the portable electronic apparatus is charged by the AC adapter through the mini USB plug. When the computer resumes normal operation, the USB connection between the portable electronic apparatus and the computer is automatically reestablished.
    Type: Application
    Filed: November 29, 2005
    Publication date: January 4, 2007
    Inventors: Yi-Tsung Cheng, Chia-Hsing Liao, Hsiu-Hung Chou, Guo-Bin Fang, Chih-Chung Teng, Yu-Ping Hsu
  • Publication number: 20050024337
    Abstract: A keyboard includes a key module comprising at least one key cell with an output end which is selectively connected to a first voltage or a second voltage, a detect circuit electrically connected to the output end of the key cell for generating a control signal whenever the voltage on the output end of the key cell becomes the second voltage or the first voltage, a parallel-to-serial register electrically connected to the output end of the key module, and a processor electrically connected to the parallel-to-serial register and the detect circuit for controlling the parallel-to-serial register according to the control signal.
    Type: Application
    Filed: October 3, 2003
    Publication date: February 3, 2005
    Inventor: Yi-Tsung Cheng