Patents by Inventor Tao-Sheng Ou

Tao-Sheng Ou 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: 9549308
    Abstract: A mobile communication device is provided with a processor. The processor is configured to receive a request for starting a Mobile Originated (MO) service, determine a plurality of remaining usage quotas for the MO service, which correspond to a plurality of subscriber numbers, and select one of the subscriber numbers for starting the MO service according to the remaining usage quotas.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: January 17, 2017
    Assignee: MEDIATEK INC.
    Inventors: Te-Chung Cho, Yu-Ting Chen, Tao-Sheng Ou, Che-Cheng Lin, Jen-De Lai
  • Patent number: 9450630
    Abstract: A method for displaying SIM card slot information for use in a device including M SIM card slots, each of which may have a SIM card inserted therein or no SIM card inserted therein. The method includes the following steps. A set of predetermined rules are first determined by the device. Statuses of the M SIM card slots corresponding to the set of predetermined rules are then acquired. Information regarding N of the M SIM card slots are displayed on a display unit of the device according to the set of predetermined rules determined by the current associated network and the acquired statuses of the M SIM card slots, where N<M and N>=1.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 20, 2016
    Assignee: MEDIATEK INC.
    Inventors: Te-Chung Cho, Yu-Ting Chen, Che-Cheng Lin, Jen-De Lai, Tao-Sheng Ou, Tsung-Te Wang
  • Patent number: 9408139
    Abstract: A mobile communication device supporting a plurality of Radio Access Technologies (RATs) and a plurality of radio frequencies is provided. In the mobile communication device, a Baseband processor is configured to schedule the plurality of RATs and the plurality of radio frequencies in pairs in an order for a Public Land Mobile Network (PLMN) selection procedure, and determine one of the pairs and repeat the determined pair in the order of the pairs during the PLMN selection procedure.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: August 2, 2016
    Assignee: MEDIATEK INC.
    Inventors: Chi-Ju Chang, Tao-Sheng Ou, Yu-Ting Chen, Yen-Ku Liu
  • Publication number: 20160219501
    Abstract: A mobile communication device supporting a plurality of Radio Access Technologies (RATs) and a plurality of radio frequencies is provided. In the mobile communication device, a Baseband processor is configured to schedule the plurality of RATs and the plurality of radio frequencies in pairs in an order for a Public Land Mobile Network (PLMN) selection procedure, and determine one of the pairs and repeat the determined pair in the order of the pairs during the PLMN selection procedure.
    Type: Application
    Filed: May 13, 2015
    Publication date: July 28, 2016
    Inventors: Chi-Ju CHANG, Tao-Sheng OU, Yu-Ting CHEN, Yen-Ku LIU
  • Publication number: 20160192170
    Abstract: A mobile communication device is provided with a processor. The processor is configured to receive a request for starting a Mobile Originated (MO) service, determine a plurality of remaining usage quotas for the MO service, which correspond to a plurality of subscriber numbers, and select one of the subscriber numbers for starting the MO service according to the remaining usage quotas.
    Type: Application
    Filed: December 29, 2014
    Publication date: June 30, 2016
    Inventors: Te-Chung CHO, Yu-Ting CHEN, Tao-Sheng OU, Che-Cheng LIN, Jen-De LAI
  • Publication number: 20150349824
    Abstract: A method for displaying SIM card slot information for use in a device including M SIM card slots, each of which may have a SIM card inserted therein or no SIM card inserted therein. The method includes the following steps. A set of predetermined rules are first determined by the device. Statuses of the M SIM card slots corresponding to the set of predetermined rules are then acquired. Information regarding N of the M SIM card slots are displayed on a display unit of the device according to the set of predetermined rules determined by the current associated network and the acquired statuses of the M SIM card slots, where N<M and N>=1.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Applicant: Media Tek Inc.
    Inventors: Te-Chung CHO, Yu-Ting CHEN, Che-Cheng LIN, Jen-De LAI, Tao-Sheng OU, Tsung-Te WANG
  • Patent number: 9118918
    Abstract: The present invention is directed to a rate-distortion optimized (RDO) transform and quantization system. A frame classification unit classifies an input frame as either a key frame or a non-key frame. A rate model update unit generates at least one model parameter of a rate model according to a transform coefficient and a bitrate resulted from an encoded key frame. An RDO transform and quantization unit processes the input frame, thereby generating a quantized transform coefficient according to the model parameter. A frame buffer is used to store a previous frame, according to which the bitrate is estimated.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: August 25, 2015
    Assignee: National Taiwan University
    Inventors: Tsung Yau Huang, Homer H. Chen, Po-Yen Su, Chieh Kai Kao, Tao-Sheng Ou
  • Publication number: 20140219451
    Abstract: An adaptive security apparatus is arranged for updating a security parameter in a database. The adaptive security apparatus includes a message receiver, a data processor, a security processor, and an adaptive parameter processor. The message receiver is arranged for receiving a message. The data processor is arranged for receiving the message from the message receiver and a security parameter from the database. The security processor is arranged for performing a deciphering process and a decoding process according to an output of the data processor. The adaptive parameter processor is arranged for updating the security parameter. Besides, an adaptive security method arranged for adaptively updating a security parameter includes: checking a status of a deciphering process and accordingly generating a checking result; and referring to the checking result to adaptively search a target pattern of the security parameter from a plurality of candidate patterns.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Applicant: MEDIATEK INC.
    Inventor: Tao-Sheng Ou
  • Patent number: 8654840
    Abstract: A rate control method of perceptual-based rate-distortion (R-D) optimized bit allocation is disclosed. An input frame is firstly determined as a key frame or non-key frame. A key frame is additionally encoded to generate rate-distortion (R-D) points. The R-D model of each basic unit (BU) is updated, followed by perceptual-based bit allocation, thereby generating a target bit rate. A quantization parameter (QP) is computed according to the target bit rate, and the current BU is encoded according to the QP. A rate-quantization (R-Q) model is updated if not all BUs have been encoded.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: February 18, 2014
    Assignee: National Taiwan University
    Inventors: Tao-Sheng Ou, Yi-Hsin Huang, Po-Yen Su, Homer H. Chen
  • Publication number: 20130235938
    Abstract: The present invention is directed to a rate-distortion optimized (RDO) transform and quantization system. A frame classification unit classifies an input frame as either a key frame or a non-key frame. A rate model update unit generates at least one model parameter of a rate model according to a transform coefficient and a bitrate resulted from an encoded key frame. An RDO transform and quantization unit processes the input frame, thereby generating a quantized transform coefficient according to the model parameter. A frame buffer is used to store a previous frame, according to which the bitrate is estimated.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 12, 2013
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Tsung Yau HUANG, Homer H. CHEN, Po-Yen SU, Chieh Kai KAO, TAO-SHENG OU
  • Patent number: 8238444
    Abstract: A perceptual-based video coding method provides a perceptual-based rate-distortion (R-D) curve as a predictive R-D curve. The Lagrange multiplier for a current frame is then determined by deciding a slope, with sign reversed, of a tangent to the predictive R-D curve at a current point that is on the predictive R-D curve and closest to a previous R-D point of a previous encoded frame. The current frame is then encoded according to the determined Lagrange multiplier.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: August 7, 2012
    Assignee: National Taiwan University
    Inventors: Yi-Hsin Huang, Tao-Sheng Ou, Homer H. Chen
  • Publication number: 20110310962
    Abstract: A rate control method of perceptual-based rate-distortion (R-D) optimized bit allocation is disclosed. An input frame is firstly determined as a key frame or non-key frame. A key frame is additionally encoded to generate rate-distortion (R-D) points. The R-D model of each basic unit (BU) is updated, followed by perceptual-based bit allocation, thereby generating a target bit rate. A quantization parameter (QP) is computed according to the target bit rate, and the current BU is encoded according to the QP. A rate-quantization (R-Q) model is updated if not all BUs have been encoded.
    Type: Application
    Filed: July 8, 2010
    Publication date: December 22, 2011
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: TAO-SHENG OU, YI-HSIN HUANG, Po-Yen SU, Homer H. CHEN
  • Publication number: 20110142124
    Abstract: A perceptual-based video coding method provides a perceptual-based rate-distortion (R-D) curve as a predictive R-D curve. The Lagrange multiplier for a current frame is then determined by deciding a slope, with sign reversed, of a tangent to the predictive R-D curve at a current point that is on the predictive R-D curve and closest to a previous R-D point of a previous encoded frame. The current frame is then encoded according to the determined Lagrange multiplier.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 16, 2011
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: YI-HSIN HUANG, TAO-SHENG OU, Homer H. CHEN