Patents by Inventor Frank Tang

Frank Tang 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: 10090755
    Abstract: A method includes comparing, by a voltage-second (VS) controller, a first duty cycle used to control a first switch at a primary side of a power transformer of a DC-to-DC converter with a threshold. The method further includes if a value of the first duty cycle is less than the threshold, controlling, by the VS controller, a second duty cycle used to control a second switch at a secondary side of the power transformer, and maintaining a voltage level at an output voltage node at a non-zero value, and if the value of the first duty cycle is greater than the threshold, controlling, by an output voltage loop, the second duty cycle based on the first duty cycle, and monotonically increasing the voltage level the at the output voltage node from the non-zero value to a predetermined value.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: October 2, 2018
    Assignee: Texas Instruments Incorporated
    Inventors: Frank Tang, Kening Gao, Lin Sheng, Danyang Zhu
  • Publication number: 20170201171
    Abstract: A method includes comparing, by a voltage-second (VS) controller, a first duty cycle used to control a first switch at a primary side of a power transformer of a DC-to-DC converter with a threshold. The method further includes if a value of the first duty cycle is less than the threshold, controlling, by the VS controller, a second duty cycle used to control a second switch at a secondary side of the power transformer, and maintaining a voltage level at an output voltage node at a non-zero value, and if the value of the first duty cycle is greater than the threshold, controlling, by an output voltage loop, the second duty cycle based on the first duty cycle, and monotonically increasing the voltage level the at the output voltage node from the non-zero value to a predetermined value.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 13, 2017
    Inventors: Frank Tang, Kening Gao, Lin Sheng, Danyang Zhu
  • Patent number: 9548653
    Abstract: A method includes comparing, by a voltage-second (VS) controller, a first duty cycle used to control a first switch at a primary side of a power transformer of a DC-to-DC converter with a threshold. The method further includes if a value of the first duty cycle is less than the threshold, controlling, by the VS controller, a second duty cycle used to control a second switch at a secondary side of the power transformer, and maintaining a voltage level at an output voltage node at a non-zero value, and if the value of the first duty cycle is greater than the threshold, controlling, by an output voltage loop, the second duty cycle based on the first duty cycle, and monotonically increasing the voltage level the at the output voltage node from the non-zero value to a predetermined value.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 17, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Frank Tang, Kening Gao, Sheng Lin, Danyang Zhu
  • Publication number: 20160105094
    Abstract: A method includes comparing, by a voltage-second (VS) controller, a first duty cycle used to control a first switch at a primary side of a power transformer of a DC-to-DC converter with a threshold. The method further includes if a value of the first duty cycle is less than the threshold, controlling, by the VS controller, a second duty cycle used to control a second switch at a secondary side of the power transformer, and maintaining a voltage level at an output voltage node at a non-zero value, and if the value of the first duty cycle is greater than the threshold, controlling, by an output voltage loop, the second duty cycle based on the first duty cycle, and monotonically increasing the voltage level the at the output voltage node from the non-zero value to a predetermined value..
    Type: Application
    Filed: February 19, 2015
    Publication date: April 14, 2016
    Inventors: Frank TANG, Kening GAO, Sheng LIN, Danyang ZHU
  • Publication number: 20130067307
    Abstract: A computer-implemented technique includes receiving a request for a translation webpage and generating a user interface webpage for the translation webpage. The user interface webpage includes a text input portion, a translated text output portion, a source language selection portion, and a target language selection portion. The source language selection portion includes a quick source language selection icon identifying a potential source language, and a source language selection list including a plurality of potential source languages. The target language selection portion includes a quick target language selection icon identifying a potential target language, and a target language selection list including a plurality of potential target languages.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 14, 2013
    Applicant: GOOGLE INC.
    Inventors: Chao Tian, Awaneesh Verma, Joshua James Estelle, Yung-Fong Frank Tang
  • Publication number: 20040097689
    Abstract: The present invention relates to a photosensitive thermosetting resin, which has more than two of ethylenically double bonds and carboxyl functional groups in one molecule thereof. The invention also relates to a solder resist ink composition, including (A) the above photosensitive thermosetting resin, (B) a photo-polymerization initiator, and (C) a thermo-hardener. The solder resist ink composition is suitably applied to a printed circuit board, and has excellent photosensitivity, solder resistance, electrical corrosion resistance, insulating properties and adhesion to copper foil.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Applicant: Great Eastern Resins Industrial Co., Ltd., Taiwan, R.O.C.
    Inventor: Frank Tang
  • Patent number: 5793381
    Abstract: A character code conversion system that provides round trip fidelity, while ensuring that the resulting character codes are interchangeable with other platforms. The code conversion system is able to map a single source character or a sequence of characters to either a single target character or a sequence of target characters. With round trip fidelity, source text can be converted to target text and then back again to the original source text. The interchangability is ensured by maximizing the use of standard target characters, and by minimizing the use of private characters. The code conversion is particularly useful for converting to/from Unicode characters from/to other character sets.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: August 11, 1998
    Assignee: Apple Computer, Inc.
    Inventors: Peter K. Edberg, John I. McConnell, Yung-Fong Frank Tang, Andrew M. Daniels
  • Patent number: 5784071
    Abstract: A code conversion system that takes context into consideration when converting characters from a source character encoding to a target character encoding. The code conversion system is able to map a single source character or a sequence of characters to either a single target character or a sequence of target characters. By determining the context of the characters, the code conversion system can then utilize the determined context of the characters to ensure that the correct mapping to the target encoding is obtained.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: July 21, 1998
    Assignee: Apple Computer, Inc.
    Inventors: Yung-Fong Frank Tang, Andrew M. Daniels, Peter K. Edberg, John I. McConnell
  • Patent number: 5784069
    Abstract: A code conversion system that takes direction into consideration when converting characters from a source character encoding to a target character encoding is disclosed. The code conversion system is able to map a single source character or a sequence of characters to either a single target character or a sequence of target characters. By determining or resolving the direction of the characters being converted, the code conversion system can then utilize the determined or resolved direction of the characters to ensure that the correct mapping to the target character encoding is obtained.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: July 21, 1998
    Assignee: Apple Computer, Inc.
    Inventors: Andrew M. Daniels, Yung-Fong Frank Tang, Peter K. Edberg, John I. McConnell