Patents by Inventor Chaoyang Zhao

Chaoyang Zhao 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: 8990471
    Abstract: A modular integrated circuit includes a hub module that is coupled to a plurality of spoke modules via a plurality of hub interfaces. The plurality of hub interfaces provide a plurality of signal interfaces between the hub module and each of the plurality of spoke modules, wherein each of the plurality of signal interfaces is isolated from each of the other signal interfaces of the plurality of signals interface, and wherein each of the plurality of signal interfaces operates in accordance with a common signaling format.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: March 24, 2015
    Assignee: Broadcom Corporation
    Inventors: Mark N. Fullerton, Robert Morris, Lance Leslie Flake, Lawrence J. Madar, III, Sam Liu, Chaoyang Zhao, Vinay Bhasin, Joyjit Nath, Bhupesh Kharwa, Claude G. Hayek
  • Patent number: 8989331
    Abstract: Provided is a method for transferring data from one clock domain within a synchronizer to another domain within the synchronizer. The method includes determining system clock parameters within the synchronizer and analyzing a first domain clock signal based upon the system clock parameters. Next, a second domain clock signal is analyzed based upon the first domain clock signal and the system clock parameters. A determination is made as to when to transfer data from a first clock domain to a second clock domain in accordance with the analysis of the first and second domain clock signals, and an enable signal is provided to affect the data transfer from the first domain to the second clock domain.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 24, 2015
    Assignee: Broadcom Corporation
    Inventors: Sam H. Liu, Zhiqing Zhuang, Chaoyang Zhao, Vinay Bhasin, Chenmin Zhang, Lawrence J. Madar, III, Vafa J. Rakshani
  • Patent number: 8386688
    Abstract: A modular integrated circuit includes a hub module that is coupled to a plurality of spoke modules via a plurality of hub interfaces. The plurality of hub interfaces provide a plurality of signal interfaces between the hub module and each of the plurality of spoke modules, wherein each of the plurality of signal interfaces is isolated from each of the other signal interfaces of the plurality of signals interface, and wherein each of the plurality of signal interfaces operates in accordance with a common signaling format.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: February 26, 2013
    Assignee: Broadcom Corporation
    Inventors: Mark N. Fullerton, Robert Morris, Lance Flake, Lawrence J. Madar, III, Sam Liu, Chaoyang Zhao, Vinay Bhasin, Joyjit Nath, Bhupesh Kharwa, Claude G. Hayek
  • Publication number: 20120250877
    Abstract: A central audio hub, comprising an audio switch, a bus matrix, and an audio buffer, is triggered to read audio samples of an audio stream from the audio buffer. The central audio hub routes the audio samples via the bus matrix to one or more surrounding audio modules such as an audio codec and an audio interface communicatively coupled to the central audio hub. The audio stream may be directly from an external application processor or from an external DDR. With the audio stream from the DDR, a DMA controller may fetch the audio samples from the DDR in response to a request received from the audio buffer, and store the fetched audio samples into the audio buffer for routing. The audio switch may be triggered at a determined sampling rate to read the audio samples from the audio buffer utilizing a determined sample format, and to route the audio samples to the surrounding audio modules.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Inventors: Taiyi Cheng, Hongwei Kong, Nelson Sollenberger, Mark Fullerton, Chin Sieh Lee, Timothy Pong, Yafang Feng, Claire Marie Suzanne Simeon, Michael Liu, Kenneth Ma, Chaoyang Zhao
  • Publication number: 20110271028
    Abstract: A modular integrated circuit includes a hub module that is coupled to a plurality of spoke modules via a plurality of hub interfaces. The plurality of hub interfaces provide a plurality of signal interfaces between the hub module and each of the plurality of spoke modules, wherein each of the plurality of signal interfaces is isolated from each of the other signal interfaces of the plurality of signals interface, and wherein each of the plurality of signal interfaces operates in accordance with a common signaling format.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 3, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Mark N. Fullerton, Robert Morris, Lance Flake, Lawrence J. Madar, III, Sam Liu, Chaoyang Zhao, Vinay Bhasin, Joyjit Nath, Bhupesh Kharwa, Claude G. Hayek
  • Publication number: 20070280396
    Abstract: Provided is a method for transferring data from one clock domain within a synchronizer to another domain within the synchronizer. The method includes determining system clock parameters within the synchronizer and analyzing a first domain clock signal based upon the system clock parameters. Next, a second domain clock signal is analyzed based upon the first domain clock signal and the system clock parameters. A determination is made as to when to transfer data from a first clock domain to a second clock domain in accordance with the analysis of the first and second domain clock signals, and an enable signal is provided to affect the data transfer from the first domain to the second clock domain.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 6, 2007
    Applicant: Broadcom Corporation
    Inventors: Sam H. Liu, Zhiqing Zhuang, Chaoyang Zhao, Vinay Bhasin, Chenmin Zhang, Lawrence J. Madar, Vafa J. Rakshani