Patents by Inventor Datong Chen

Datong Chen 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: 10853847
    Abstract: A signature matrix is used to test each online event for inclusion of a user in a pre-generated lookalike audience. Locality Sensitive Hashing is used to compile the signature matrix to dramatically reduce memory storage requirements and processing time for each received online event. A technique of producing incremental signature matrices between generation of the full signature matrix helps to enable near-real time performance in processing each received event to see if a user associated with that event should be added to one of the lookalike audiences pre-generated by advertiser.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 1, 2020
    Assignee: Oath Inc.
    Inventors: Haiyan Luo, Datong Chen, Zhen Xia, Shiyong Cheng, Yi Mao, Shu Zhang, Jiayi Wen, Xiaojiang Cheng, Herve Marcellini
  • Patent number: 10715612
    Abstract: Systems and methods for identifying users according to their activity are disclosed. The identification of a user includes accessing a user activity log having a plurality of identifiers and corresponding activity information for each identifier, determining identifiers having correlating activity information, and assigning identifiers having correlating activity information to a common user.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 14, 2020
    Assignee: Oath Inc.
    Inventors: Liang Wang, Zhen Xia, Datong Chen, Musen Wen
  • Publication number: 20170330239
    Abstract: A signature matrix is used to test each online event for inclusion of a user in a pre-generated lookalike audience. Locality Sensitive Hashing is used to compile the signature matrix to dramatically reduce memory storage requirements and processing time for each received online event. A technique of producing incremental signature matrices between generation of the full signature matrix helps to enable near-real time performance in processing each received event to see if a user associated with that event should be added to one of the lookalike audiences pre-generated by advertiser.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Applicant: Yahoo Holdings, Inc.
    Inventors: Haiyan Luo, Datong Chen, Zhen Xia, Shiyong Cheng, Yi Mao, Shu Zhang, Jiayi Wen, Xiaojiang Cheng, Herve Marcellini
  • Publication number: 20170078415
    Abstract: Systems and methods for identifying users according to their activity are disclosed. The identification of a user includes accessing a user activity log having a plurality of identifiers and corresponding activity information for each identifier, determining identifiers having correlating activity information, and assigning identifiers having correlating activity information to a common user.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 16, 2017
    Inventors: Liang Wang, Zhen Xia, Datong Chen, Musen Wen
  • Publication number: 20140081696
    Abstract: Systems and methods for automatically forecasting the future availability of one or more resources, such as Internet advertising opportunities, are described herein. In accordance with various embodiments, a forecasting model that accounts for event-driven resource availability is trained based both on historical supply data and calendar information specifying events and event duration. The trained forecasting model is then used to forecast the availability of resources at one or more specified future time periods. In accordance with certain embodiments, the forecasting model comprises a Gaussian process model that has an event-driven kernel as a covariance function.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: Yahoo! Inc.
    Inventors: Konstantin Salomatin, Datong Chen, Qi He, Peiji Chen
  • Publication number: 20140019232
    Abstract: Techniques are described herein for using an impression-trend technique to provide a display advertising supply forecast. A display advertising supply forecast is an estimate of a number of impressions, which are to occur in a future time period, that have specified attribute values. For example, the specified attribute values may be descriptive of impressions with respect to which an advertiser wishes to place ads. An impression-trend technique is a forecasting technique that uses trends regarding past impressions to forecast a number of future impressions that have specified attribute values. The past impressions include attribute values that are related to the specified attribute values.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Applicant: Yahoo! Inc.
    Inventors: Erik Vee, Jayavel Shanmugasundaram, Long Ji Lin, Peiji Chen, Datong Chen, Qi He
  • Patent number: 8620720
    Abstract: Systems and methods for automatically forecasting the future availability of one or more resources, such as Internet advertising opportunities, are described herein. In accordance with various embodiments, a forecasting model that accounts for event-driven resource availability is trained based both on historical supply data and calendar information specifying events and event duration. The trained forecasting model is then used to forecast the availability of resources at one or more specified future time periods. In accordance with certain embodiments, the forecasting model comprises a Gaussian process model that has an event-driven kernel as a covariance function.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: December 31, 2013
    Assignee: Yahoo! Inc.
    Inventors: Konstantin Salomatin, Datong Chen, Qi He, Peiji Chen
  • Patent number: 8554621
    Abstract: Techniques are described herein for using an impression-trend technique to provide a display advertising supply forecast. A display advertising supply forecast is an estimate of a number of impressions, which are to occur in a future time period, that have specified attribute values. For example, the specified attribute values may be descriptive of impressions with respect to which an advertiser wishes to place ads. An impression-trend technique is a forecasting technique that uses trends regarding past impressions to forecast a number of future impressions that have specified attribute values. The past impressions include attribute values that are related to the specified attribute values.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 8, 2013
    Assignee: Yahoo! Inc.
    Inventors: Erik Vee, Jayavel Shanmugasundaram, Long Ji Lin, Peiji Chen, Datong Chen, Qi He
  • Patent number: 8347188
    Abstract: An apparatus and method of an outer Forward Error Correcting (FEC) code for a mobile broadcast service based on TD-SCDMA network is disclosed.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: January 1, 2013
    Assignee: Spreadtrum Communication (Shanghai) Co. Ltd.
    Inventors: Jian Cheng, Datong Chen, Jingdong Lin, Yi Kang
  • Publication number: 20120278129
    Abstract: Systems and methods for automatically forecasting the future availability of one or more resources, such as Internet advertising opportunities, are described herein. In accordance with various embodiments, a forecasting model that accounts for event-driven resource availability is trained based both on historical supply data and calendar information specifying events and event duration. The trained forecasting model is then used to forecast the availability of resources at one or more specified future time periods. In accordance with certain embodiments, the forecasting model comprises a Gaussian process model that has an event-driven kernel as a covariance function.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Applicant: Yahoo! Inc.
    Inventors: Konstantin Salomatin, Datong Chen, Qi He, Peiji Chen
  • Publication number: 20120158495
    Abstract: A network based advertisement system includes a supply forecasting system configured to select, from a campaign log database, data that defines a plurality of contracts. Each contract specifies requirements that include contract target audience information and a number of impressions. For each contract, the supply forecasting system identifies one or more opportunity samples with characteristics that match contract target audience information of the contract. Each opportunity sample is associated with a weight that corresponds to a number of opportunities with similar characteristics. An optimizer associates the opportunity samples with the contract and then determines whether the opportunity samples are associated with other contracts. The optimizer then limits the number of opportunities associated with the samples that are allocatable to the contract based at least in part on a function of requirements of other contracts associated with the one or more samples.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Inventors: Jayavel Shanmugasundaram, Datong Chen, Sumanth Jagannath, Erik Vee, Ramana Yerneni
  • Publication number: 20120004957
    Abstract: Methods, systems, and apparatuses for generating supply forecasts for advertisement impressions are provided. Supply forecasts for future advertisement inventory are enabled to be determined that match attribute values received from a requester in a query or “contract.” Such supply forecasts may be determined based on cumulative or non-cumulative supply forecast values, and may be determined based on time series of supply forecast values for individual impressions or for blocks of impressions.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 5, 2012
    Applicant: YAHOO! INC.
    Inventors: Datong Chen, Erik Vee, Jayanth Anandaram, Qi He, Jayavel Shanmugasundaram, Peiji Chen
  • Patent number: 8072960
    Abstract: A networking method of single frequency network in a TD-SCDMA system includes the steps of: (1) deciding a networking configuration scheme by a universal mobile telecommunications system terrestrial radio access network (UTRAN), (2) based on the decided networking configuration scheme, configuring an intra-frequency cell info list information element and an inter-frequency cell info list information element in system information and measurement control messages by the UTRAN, (3) transmitting signals over a servicing area by the UTRAN, and (4) receiving the system information and measurement control messages by a user equipment (UE) from the UTRAN, acquiring working mode configuration information of each frequency and each timeslot of a serving cell and neighboring cells, and judging whether there are duplicated cell information elements in the intra-frequency cell info list information element or the inter-frequency cell info list information element.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: December 6, 2011
    Assignee: Spreadtrum Communications, Inc.
    Inventors: Yanshan Shi, Ling Lv, Jingdong Lin, Datong Chen
  • Publication number: 20110231248
    Abstract: Techniques are described herein for using an impression-trend technique to provide a display advertising supply forecast. A display advertising supply forecast is an estimate of a number of impressions, which are to occur in a future time period, that have specified attribute values. For example, the specified attribute values may be descriptive of impressions with respect to which an advertiser wishes to place ads. An impression-trend technique is a forecasting technique that uses trends regarding past impressions to forecast a number of future impressions that have specified attribute values. The past impressions include attribute values that are related to the specified attribute values.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Applicant: YAHOO! INC.
    Inventors: Erik Vee, Jayavel Shanmugasundaram, Long Ji Lin, Peiji Chen, Datong Chen, Qi He
  • Publication number: 20110208591
    Abstract: Disclosed is a system to forecast a supply of online advertising demand contracts having day parting targets. The system may receive an online advertising demand contract having a flight duration and a day parting target. The received online advertising demand contract may be processed by converting the day parting target into an hour-of-week day parting target vector. If a first day of the flight duration would generate a conflict in view of the hour-of-week day parting target vector, then the system may generate a new first day contract for the first day of the flight duration.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 25, 2011
    Inventors: Datong Chen, Erik Vee, Jayanth Anandaram, Jayavel Shanmugasundaram, Peiji Chen
  • Patent number: 7969947
    Abstract: A mobile TV broadcast system based on TD-SCDMA network is disclosed herein.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: June 28, 2011
    Assignee: Spreadtrum Communications, Inc.
    Inventors: Jian Cheng, Datong Chen, Kang Yi, Zhiqun Chen, Jingdong Lin
  • Publication number: 20100326427
    Abstract: A one-axis sun position tracking device with its rotation axis parallel to the rotation axis of the Earth, rotates perpetually at a constant speed in the opposite direction of the Earth's rotation. This device comprises a shaft that is aligned to the Earth's polar axis, one or more crossbars are rigidly attached to and perpendicular to the shaft, solar energy collectors are mounted on the crossbar and could rotate around the crossbar that defines declination angle. A self-latched declination angle adjustment mechanism keeps the declination angle constant at most of time. A drive mechanism keeps this solar tracker to rotate perpetually. An automatic and abrupt declination angle change will keep the declination angle updated to correct value each day. A similarly configured two-axis tracker that continuously updates its declination angle by a mechanism derived from a differential coaxial rotation.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 30, 2010
    Inventor: Datong Chen
  • Publication number: 20090266354
    Abstract: A solar energy collecting device includes a rotation axis to be mounted parallel to the earth's polar axis, a solar energy collector mounted for rotation around the rotation axis at a predetermined rotation speed, the solar energy collector defining a tilt angle with respect to the rotation axis, and a tilt angle adjustment mechanism for automatically and intermittently adjusting the tilt angle. Various configurations of the solar energy collector are possible, and the rotation speed may be one revolution per day or half a revolution per day depending on the solar energy collector configuration. Many drive modes are possible, including rotating continuously throughout a day or rotating during daylight hours and rotating backward or forward at night. The tilt angle adjustment mechanism includes a handle fixed to the solar energy collector and a tilt angle change guide.
    Type: Application
    Filed: June 2, 2007
    Publication date: October 29, 2009
    Applicant: RENEWATT CORPORATION
    Inventor: Datong Chen
  • Publication number: 20090190547
    Abstract: Networking methods of a Single Frequency Network (SFN) in communication systems are disclosed.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 30, 2009
    Inventors: Yanshan Shi, Ling Lv, Jingdong Lin, Datong Chen
  • Patent number: 7456887
    Abstract: An improved active pixel sensor soft reset circuit for reducing image lag while maintaining low reset kTC noise. The circuit pulls down the sensor potential to a sufficiently low level before the soft reset function is completed. The level to which the sensor potential is pulled is set between 0 and the critical potential at which the reset transistor will be on when the soft reset function begins. The timing of the pull down function is such that the sensor is stabilized at the low potential before the soft reset function completes. In one embodiment, the sensor potential is pulled down using a pull-down circuit, which may consist of a CMOS type inverter. In another embodiment, the sensor potential is pulled down by the bit line. Two ways in which the bit line may be pulled down are natural discharge, or by increasing the bias on the loading transistor. Two ways in which the bias on the loading transistor may be increased are a biasing circuit, or by using a pull-down transistor.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: November 25, 2008
    Assignee: OmniVision Technologies, Inc.
    Inventors: Tiemin Zhao, Xinping He, Qingwei Shan, Datong Chen