Patents by Inventor Dannie Lau

Dannie Lau 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: 11184661
    Abstract: Media is selected for video playback through a first device and audio playback through one or more separate devices connected through a wireless network. Different techniques for synchronizing the audio and video can be selected based on one or more factors to improve media playback.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: November 23, 2021
    Assignee: DTS, Inc.
    Inventors: Dannie Lau, Chunho Lee
  • Patent number: 11163524
    Abstract: When the volume is adjusted in a multi-speaker system, it is desirable that one speaker does not change volume disproportionately with respect to another speaker. A method is presented for adjusting a volume level of one or more speakers. Each speaker can have a non-standardized relationship between logical volume level that is input to the speaker and sound pressure level that is produced by the speaker. A selected volume level, corresponding to a sound pressure level, can be received via a user interface. A stored lookup table can be accessed to convert the sound pressure level to a first product-specific logical volume level for each speaker. The stored lookup table can tabulate the non-standardized relationship between logical volume level and sound pressure level for each speaker. Data corresponding to the first product-specific logical volume level can be transmitted to each speaker.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: November 2, 2021
    Assignee: DTS, Inc.
    Inventor: Dannie Lau
  • Publication number: 20210144431
    Abstract: Media is selected for video playback through a first device and audio playback through one or more separate devices connected through a wireless network. Different techniques for synchronizing the audio and video can be selected based on one or more factors to improve media playback.
    Type: Application
    Filed: August 21, 2020
    Publication date: May 13, 2021
    Inventors: Dannie Lau, Chunho Lee
  • Patent number: 10897667
    Abstract: A user device can be used to correct for a latency of an audio chain, which extends inclusively between an input and a speaker. The user device can communicate an indication to the speaker to play a sound at a first time, and record a second time at which a microphone on the user device detects the sound. The user device can compare the first and second times to determine a latency of the audio chain. The user device can communicate adjustment data corresponding to the determined latency to a component in the audio chain. The component can use the adjustment data to correct for the determined latency. In some examples, the user device can display instructions to position the user device a specified distance from the speaker, and can account for a time-of-flight of sound to propagate along the specified distance.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: January 19, 2021
    Assignee: DTS, Inc.
    Inventor: Dannie Lau
  • Publication number: 20210004202
    Abstract: When the volume is adjusted in a multi-speaker system, it is desirable that one speaker does not change volume disproportionately with respect to another speaker. A method is presented for adjusting a volume level of one or more speakers. Each speaker can have a non-standardized relationship between logical volume level that is input to the speaker and sound pressure level that is produced by the speaker. A selected volume level, corresponding to a sound pressure level, can be received via a user interface. A stored lookup table can be accessed to convert the sound pressure level to a first product-specific logical volume level for each speaker. The stored lookup table can tabulate the non-standardized relationship between logical volume level and sound pressure level for each speaker. Data corresponding to the first product-specific logical volume level can be transmitted to each speaker.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Inventor: Dannie Lau
  • Patent number: 10795637
    Abstract: When the volume is adjusted in a multi-speaker system, it is desirable that one speaker does not change volume disproportionately with respect to another speaker. A method is presented for adjusting a volume level of one or more speakers. Each speaker can have a non-standardized relationship between logical volume level that is input to the speaker and sound pressure level that is produced by the speaker. A selected volume level, corresponding to a sound pressure level, can be received via a user interface. A stored lookup table can be accessed to convert the sound pressure level to a first product-specific logical volume level for each speaker. The stored lookup table can tabulate the non-standardized relationship between logical volume level and sound pressure level for each speaker. Data corresponding to the first product-specific logical volume level can be transmitted to each speaker.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: October 6, 2020
    Assignee: DTS, Inc.
    Inventor: Dannie Lau
  • Patent number: 10757466
    Abstract: Media is selected for video playback through a first device and audio playback through one or more separate devices connected through a wireless network. Different techniques for synchronizing the audio and video can be selected based on one or more factors to improve media playback.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 25, 2020
    Assignee: DTS, Inc.
    Inventors: Dannie Lau, Chunho Lee
  • Patent number: 10694288
    Abstract: A user device can be used to correct for a latency of a speaker. The user device can communicate an indication to the speaker to play a sound at a first time. The user device can record a second time at which a microphone on the user device detects the sound. The first and second times can be synchronized to a clock of a computer network. The user device can compare the first and second times to determine a latency of the speaker. The user device can communicate adjustment data corresponding to the determined latency to the speaker. The speaker can use the adjustment data to correct for the determined latency. In some examples, the user device can display instructions to position the user device a specified distance from the speaker, and can account for a time-of-flight of sound to propagate along the specified distance.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: June 23, 2020
    Assignee: DTS, Inc.
    Inventor: Dannie Lau
  • Publication number: 20200014969
    Abstract: Media is selected for video playback through a first device and audio playback through one or more separate devices connected through a wireless network. Different techniques for synchronizing the audio and video can be selected based on one or more factors to improve media playback. One aspect features a method and associated user interfaces for selecting to listen to audio through headphones using a user interface on a mobile device. The audio played through the headphones is synchronized to the video being displayed using techniques and systems described herein.
    Type: Application
    Filed: July 12, 2019
    Publication date: January 9, 2020
    Inventors: Dannie Lau, Darren Kelly O'Brien, Sangyoun Lee
  • Publication number: 20190342659
    Abstract: A user device can be used to correct for a latency of an audio chain, which extends inclusively between an input and a speaker. The user device can communicate an indication to the speaker to play a sound at a first time, and record a second time at which a microphone on the user device detects the sound. The user device can compare the first and second times to determine a latency of the audio chain. The user device can communicate adjustment data corresponding to the determined latency to a component in the audio chain. The component can use the adjustment data to correct for the determined latency. In some examples, the user device can display instructions to position the user device a specified distance from the speaker, and can account for a time-of-flight of sound to propagate along the specified distance.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventor: Dannie Lau
  • Publication number: 20190268694
    Abstract: A user device can be used to correct for a latency of a speaker. The user device can communicate an indication to the speaker to play a sound at a first time. The user device can record a second time at which a microphone on the user device detects the sound. The first and second times can be synchronized to a clock of a computer network. The user device can compare the first and second times to determine a latency of the speaker. The user device can communicate adjustment data corresponding to the determined latency to the speaker. The speaker can use the adjustment data to correct for the determined latency. In some examples, the user device can display instructions to position the user device a specified distance from the speaker, and can account for a time-of-flight of sound to propagate along the specified distance.
    Type: Application
    Filed: May 8, 2019
    Publication date: August 29, 2019
    Inventor: Dannie Lau
  • Patent number: 10334358
    Abstract: A user device can be used to correct for a latency of a speaker. The user device can communicate an indication to the speaker to play a sound at a first time. The user device can record a second time at which a microphone on the user device detects the sound. The first and second times can be synchronized to a clock of a computer network. The user device can compare the first and second times to determine a latency of the speaker. The user device can communicate adjustment data corresponding to the determined latency to the speaker. The speaker can use the adjustment data to correct for the determined latency. In some examples, the user device can display instructions to position the user device a specified distance from the speaker, and can account for a time-of-flight of sound to propagate along the specified distance.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: June 25, 2019
    Assignee: DTS, Inc.
    Inventor: Dannie Lau
  • Publication number: 20190149874
    Abstract: Media is selected for video playback through a first device and audio playback through one or more separate devices connected through a wireless network. Different techniques for synchronizing the audio and video can be selected based on one or more factors to improve media playback.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Inventors: Dannie Lau, Chunho Lee
  • Patent number: 10158905
    Abstract: Media is selected for video playback through a first device and audio playback through one or more separate devices connected through a wireless network. Different techniques for synchronizing the audio and video can be selected based on one or more factors to improve media playback.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 18, 2018
    Assignee: DTS, Inc.
    Inventors: Dannie Lau, Chunho Lee
  • Publication number: 20180357037
    Abstract: When the volume is adjusted in a multi-speaker system, it is desirable that one speaker does not change volume disproportionately with respect to another speaker. A method is presented for adjusting a volume level of one or more speakers. Each speaker can have a non-standardized relationship between logical volume level that is input to the speaker and sound pressure level that is produced by the speaker. A selected volume level, corresponding to a sound pressure level, can be received via a user interface. A stored lookup table can be accessed to convert the sound pressure level to a first product-specific logical volume level for each speaker. The stored lookup table can tabulate the non-standardized relationship between logical volume level and sound pressure level for each speaker. Data corresponding to the first product-specific logical volume level can be transmitted to each speaker.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 13, 2018
    Inventor: Dannie Lau
  • Publication number: 20180359561
    Abstract: A user device can be used to correct for a latency of a speaker. The user device can communicate an indication to the speaker to play a sound at a first time. The user device can record a second time at which a microphone on the user device detects the sound. The first and second times can be synchronized to a clock of a computer network. The user device can compare the first and second times to determine a latency of the speaker. The user device can communicate adjustment data corresponding to the determined latency to the speaker. The speaker can use the adjustment data to correct for the determined latency. In some examples, the user device can display instructions to position the user device a specified distance from the speaker, and can account for a time-of-flight of sound to propagate along the specified distance.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 13, 2018
    Inventor: Dannie Lau
  • Publication number: 20180077443
    Abstract: Media is selected for video playback through a first device and audio playback through one or more separate devices connected through a wireless network. Different techniques for synchronizing the audio and video can be selected based on one or more factors to improve media playback.
    Type: Application
    Filed: September 14, 2016
    Publication date: March 15, 2018
    Inventors: Dannie Lau, Chunho Lee
  • Patent number: 9237324
    Abstract: Various exemplary embodiments relate to method and media devices for synchronizing media playback between a receiving media device and sending media device, including: receiving, at the receiving media device, a plurality of messages from the sending media device, wherein the plurality of messages include a plurality of sender timestamps; generating a plurality of clock offset values based on the plurality of sender timestamps and a clock of the receiving media device; identifying a minimum clock offset value from the plurality of clock offset values; locating first media data for playback and a first presentation time associated with the first media data; and causing the first media data to be rendered at a first time that matches the first presentation time based on the minimum clock offset.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: January 12, 2016
    Assignee: Phorus, Inc.
    Inventors: Chunho Lee, Dannie Lau
  • Patent number: D709859
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: July 29, 2014
    Assignee: Phorus, Inc.
    Inventors: Darren Kelly O'Brien, Dannie Lau
  • Patent number: D716254
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: October 28, 2014
    Assignee: Phorus, Inc.
    Inventors: Darren Kelly O'Brien, Dannie Lau