Patents by Inventor Erdong Chen

Erdong 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).

  • Publication number: 20210119952
    Abstract: Embodiments are provided for reducing unwanted messages or spam within a real-time social networking service. According to certain aspects, a synchronous analysis module may operate in coordination with an asynchronous analysis module. Each of the synchronous analysis module and the asynchronous analysis module analyzes an incoming message from a user account to determine whether the incoming message has characteristics of spam, whereby the synchronous analysis is at a lower latency than the asynchronous analysis. The asynchronous analysis is afforded the ability to identify certain spam characteristics that the synchronous analysis may identify during its lower latency analysis.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 22, 2021
    Inventors: Raghav Jeyaraman, Arjun Maheswaran, Erdong Chen
  • Patent number: 10816696
    Abstract: The application relates to radars, and provides a chip with a beamforming network based on a photonic crystal resonant cavity tree structure and a fabrication method thereof. The chip includes a beamforming network layer, including an incidence coupling grating, first to Nth photonic crystal resonant cavity combinations, first to (N+1)th optical waveguides and an emergence coupling grating which are successively connected; branches of each photonic crystal resonant cavity combination is an integral multiple of that of the previous photonic crystal resonant cavity combination, and two photonic crystal resonant cavity combinations are connected by an optical waveguide.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: October 27, 2020
    Assignee: 38th Research Institute Of China Electronics Technology Group Corp.
    Inventors: Xueming Jin, Naidi Cui, Jin Guo, Junbo Feng, Yuankui Hu, Heng Zhao, Li Jin, Erdong Chen
  • Patent number: 10791079
    Abstract: Embodiments are provided for reducing unwanted messages or spam within a real-time social networking service. According to certain aspects, a synchronous analysis module may operate in coordination with an asynchronous analysis module. Each of the synchronous analysis module and the asynchronous analysis module analyzes an incoming message from a user account to determine whether the incoming message has characteristics of spam, whereby the synchronous analysis is at a lower latency than the asynchronous analysis. The asynchronous analysis is afforded the ability to identify certain spam characteristics that the synchronous analysis may identify during its lower latency analysis.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: September 29, 2020
    Assignee: Twitter, Inc.
    Inventors: Raghav Jeyaraman, Arjun Maheswaran, Erdong Chen
  • Publication number: 20200081155
    Abstract: The application relates to radars, and provides a chip with a beamforming network based on a photonic crystal resonant cavity tree structure and a fabrication method thereof. The chip includes a beamforming network layer, including an incidence coupling grating, first to Nth photonic crystal resonant cavity combinations, first to (N+1)th optical waveguides and an emergence coupling grating which are successively connected; branches of each photonic crystal resonant cavity combination is an integral multiple of that of the previous photonic crystal resonant cavity combination, and two photonic crystal resonant cavity combinations are connected by an optical waveguide.
    Type: Application
    Filed: October 24, 2019
    Publication date: March 12, 2020
    Inventors: Xueming JIN, Naidi CUI, Jin GUO, Junbo FENG, Yuankui HU, Heng ZHAO, Li JIN, Erdong CHEN
  • Publication number: 20190190866
    Abstract: Embodiments are provided for reducing unwanted messages or spam within a real-time social networking service. According to certain aspects, a synchronous analysis module may operate in coordination with an asynchronous analysis module. Each of the synchronous analysis module and the asynchronous analysis module analyzes an incoming message from a user account to determine whether the incoming message has characteristics of spam, whereby the synchronous analysis is at a lower latency than the asynchronous analysis. The asynchronous analysis is afforded the ability to identify certain spam characteristics that the synchronous analysis may identify during its lower latency analysis.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 20, 2019
    Inventors: Raghav Jeyaraman, Arjun Maheswaran, Erdong Chen
  • Patent number: 10148606
    Abstract: Embodiments are provided for reducing unwanted messages or spam within a real-time social networking service. According to certain aspects, a synchronous analysis module may operate in coordination with an asynchronous analysis module. Each of the synchronous analysis module and the asynchronous analysis module analyzes an incoming message from a user account to determine whether the incoming message has characteristics of spam, whereby the synchronous analysis is at a lower latency than the asynchronous analysis. The asynchronous analysis is afforded the ability to identify certain spam characteristics that the synchronous analysis may identify during its lower latency analysis.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 4, 2018
    Assignee: Twitter, Inc.
    Inventors: Raghav Jeyaraman, Arjun Maheswaran, Erdong Chen
  • Publication number: 20160028673
    Abstract: Embodiments are provided for reducing unwanted messages or spam within a real-time social networking service. According to certain aspects, a synchronous analysis module may operate in coordination with an asynchronous analysis module. Each of the synchronous analysis module and the asynchronous analysis module analyzes an incoming message from a user account to determine whether the incoming message has characteristics of spam, whereby the synchronous analysis is at a lower latency than the asynchronous analysis. The asynchronous analysis is afforded the ability to identify certain spam characteristics that the synchronous analysis may identify during its lower latency analysis.
    Type: Application
    Filed: December 18, 2014
    Publication date: January 28, 2016
    Inventors: Raghav Jeyaraman, Arjun Maheswaran, Erdong Chen
  • Patent number: 9130997
    Abstract: Behavior of an online system is modified dynamically using feature expressions and feature loops. A feature expression can be expressed as a combination of other features or feature expressions, thereby allowing specification of complex features. The sets of feature expressions and policies of an online system can be modified while the online system is running. Feature loops aggregate values of a feature expression across a plurality of actions, for example, number of occurrences of an event over a time interval. The online system evaluates a set of feature expressions in response to actions performed by users. Feature expressions are used to specify policies that determine how the online system reacts to certain types of user actions. The ability to dynamically modify the feature expressions and policies of the online system allows the online system to adapt to attacks by malicious users in a timely manner.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: September 8, 2015
    Assignee: Facebook, Inc.
    Inventors: Christopher Alexander Stein, Karan Mangla, Zhimin Chen, Erdong Chen
  • Publication number: 20140289795
    Abstract: Behavior of an online system is modified dynamically using feature expressions and feature loops. A feature expression can be expressed as a combination of other features or feature expressions, thereby allowing specification of complex features. The sets of feature expressions and policies of an online system can be modified while the online system is running. Feature loops aggregate values of a feature expression across a plurality of actions, for example, number of occurrences of an event over a time interval. The online system evaluates a set of feature expressions in response to actions performed by users. Feature expressions are used to specify policies that determine how the online system reacts to certain types of user actions. The ability to dynamically modify the feature expressions and policies of the online system allows the online system to adapt to attacks by malicious users in a timely manner.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Inventors: Christopher Alexander Stein, Karan Mangla, Zhimin Chen, Erdong Chen
  • Patent number: 8799987
    Abstract: Behavior of an online system is modified dynamically using feature expressions and feature loops. A feature expression can be expressed as a combination of other features or feature expressions, thereby allowing specification of complex features. The sets of feature expressions and policies of an online system can be modified while the online system is running. Feature loops aggregate values of a feature expression across a plurality of actions, for example, number of occurrences of an event over a time interval. The online system evaluates a set of feature expressions in response to actions performed by users. Feature expressions are used to specify policies that determine how the online system reacts to certain types of user actions. The ability to dynamically modify the feature expressions and policies of the online system allows the online system to adapt to attacks by malicious users in a timely manner.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: August 5, 2014
    Assignee: Facebook, Inc.
    Inventors: Christopher Alexander Stein, Karan Mangla, Zhimin Chen, Erdong Chen
  • Publication number: 20130145418
    Abstract: Behavior of an online system is modified dynamically using feature expressions and feature loops. A feature expression can be expressed as a combination of other features or feature expressions, thereby allowing specification of complex features. The sets of feature expressions and policies of an online system can be modified while the online system is running. Feature loops aggregate values of a feature expression across a plurality of actions, for example, number of occurrences of an event over a time interval. The online system evaluates a set of feature expressions in response to actions performed by users. Feature expressions are used to specify policies that determine how the online system reacts to certain types of user actions. The ability to dynamically modify the feature expressions and policies of the online system allows the online system to adapt to attacks by malicious users in a timely manner.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 6, 2013
    Inventors: Christopher Alexander Stein, Karan Mangla, Zhimin Chen, Erdong Chen