Patents by Inventor Zhengran Li

Zhengran Li 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: 12125489
    Abstract: Techniques for using multiple voice-enabled devices in a user environment to reduce the latency for obtaining responses to user utterances from a remote system. The voice-enabled devices may each establish connections with the remote system to have the remote system perform supplemental speech processing for utterances the devices are unable to process locally. One voice-enabled device may have a higher-latency connection to the remote system, and another voice-enabled device may have a lower-latency connection to the remote system. The lower-latency device may send an utterance to the remote system before the higher-latency device is able, and the remote system may begin processing the utterance faster than if the lower-latency device sent the utterance. The remote system may then provide a response for the utterance to the higher-latency device in less time than if the remote system had to wait for the utterance from the higher-latency device.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: October 22, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Sahil Puri, Zhengran Li, Zhan Xu, Oliver Sinsik Chiu, Sembhayya Gollakota, Bruno Dufour
  • Patent number: 11699444
    Abstract: Techniques for using multiple voice-enabled devices in a user environment to reduce the latency for obtaining responses to user utterances from a remote system. The voice-enabled devices may each establish connections with the remote system to have the remote system perform supplemental speech processing for utterances the devices are unable to process locally. One voice-enabled device may have a higher-latency connection to the remote system, and another voice-enabled device may have a lower-latency connection to the remote system. The lower-latency device may send an utterance to the remote system before the higher-latency device is able, and the remote system may begin processing the utterance faster than if the lower-latency device sent the utterance. The remote system may then provide a response for the utterance to the higher-latency device in less time than if the remote system had to wait for the utterance from the higher-latency device.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: July 11, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Sahil Puri, Zhengran Li, Zhan Xu, Oliver Sinsik Chiu, Sembhayya Gollakota, Bruno Dufour
  • Publication number: 20100231797
    Abstract: Techniques for video data delivery are provided. A first data stream is received that includes a plurality of video data frames. At least one corrupted video data frame is detected in the first data stream. At least one replacement video data frame is generated for the corrupted video data frame(s) based at least on a non-corrupted video data frame received in the first data stream prior to the corrupted video data frame(s). The replacement video data frame(s) include a modified form of the non-corrupted video data frame, and are configured to provide a smooth scene transition from the non-corrupted video data frame. The corrupted video data frame(s) are replaced in the first data stream with the generated replacement video data frame(s) to generate a second data stream.
    Type: Application
    Filed: September 16, 2009
    Publication date: September 16, 2010
    Applicant: BROADCOM CORPORATION
    Inventors: Wenqing Jiang, Zhengran Li, Hua Jiang, Li Hao
  • Patent number: 6999826
    Abstract: A computer readable memory to direct a computer to improve the perceived audio quality of a speaker included in that computer. The computer readable memory stores a first, second and third set of instructions. The first set of instructions causes the computer to determine the speaker type. The second set of instructions causes the computer to select a set of default filter coefficients for a digital filter based upon the speaker type. Finally, the third set of instructions causes the computer to realize a digital parametric equalizer using a digital filter and the set of default filter coefficients. Thus, the digital filter alters the audio signal that is input to the speaker, thereby improving the perceived quality of the speaker.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: February 14, 2006
    Assignee: Zoran Corporation
    Inventors: Jian Zhou, Jianxin Liu, Zhengran Li