Patents by Inventor Kai Kin Chan

Kai Kin Chan 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: 20240303499
    Abstract: A method for optimizing a workflow-based neural network including an attention layer is provided. The method comprises: training the workflow-based neural network to predict a result from input elements under a prediction model with the attention layer assigning attention placements and weights, based on an original attention function, to the input elements; obtaining an original attention mask pattern and a proposed attention mask pattern; creating an attention mask updating function based on the original attention mask pattern and the proposed attention mask pattern; and combining the attention mask updating function with the original attention function to form an updated attention function.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 12, 2024
    Inventors: Wai Kai Arvin TANG, Kai Kin CHAN
  • Publication number: 20230419808
    Abstract: A first aspect provides a receiver unit for a monitor system having a first wireless transceiver for communicating with a monitor unit with a first processor, and a second processor at for processing monitoring data. The second processor has a sleep mode to reduce power consumption, and the first processor wakes the second processor from the sleep mode in response to dialogue between the first processor and the monitor unit. The first aspect also provides the monitor system with the receiver unit and the monitor unit. A second aspect provides a monitor system of a receiver unit and a monitor unit, each with a Wi-Fi module. The monitor system has a first mode in which the first and second Wi-Fi modules communicate directly with each other and a second mode in which the first and second Wi-Fi modules communicate with each other via a Wi-Fi access point. The two modes are implemented simultaneously to create two simultaneous logical paths.
    Type: Application
    Filed: November 19, 2021
    Publication date: December 28, 2023
    Inventor: Kai Kin CHAN
  • Publication number: 20190209023
    Abstract: An exercise device includes an ear piece insertable within the ear canal along an ear canal axis, a plurality of light emitters located about a periphery of the ear piece and spaced apart at 120° intervals for emitting light signals perpendicular to the ear canal axis into different areas of tissue surrounding the ear canal, a plurality of light detectors located about the periphery of the ear piece for detecting reflected light signals from the different areas of tissue surrounding the ear canal, an audio speaker, an audio player for sending audio signals to the audio speaker, and a vital sign monitor for determining at least one of heart rate, blood oxygen level, and body temperature from signals of the emitters and detectors.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Inventors: Chor Tin MA, Kai Kin CHAN, Ming Yip WONG, Kai Wai YEUNG, Fo CHAU
  • Patent number: 9801554
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. There are a plurality of light emitters and light detectors located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and receiving reflected light signals from the different areas of tissue surrounding the body part.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 31, 2017
    Assignee: Well Being Digital Limited
    Inventors: Chor Tin Ma, Kai Kin Chan, Ming Yip Wong, Kai Wai Yeung, Fo Chau
  • Publication number: 20170105639
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. There are a plurality of light emitters and light detectors located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and receiving reflected light signals from the different areas of tissue surrounding the body part.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Inventors: Chor Tin MA, Kai Kin CHAN, Ming Yip WONG, Kai Wai YEUNG, Fo CHAU
  • Publication number: 20150182135
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. There are a plurality of light emitters and light detectors located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and receiving reflected light signals from the different areas of tissue surrounding the body part.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 2, 2015
    Inventors: Chor Tin MA, Kai Kin CHAN, Ming Yip WONG, Kai Wai YEUNG, Fo CHAU
  • Patent number: 8979762
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. Light emitters and light detectors are located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and detecting reflected light signals from the different areas of tissue surrounding the body part.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: March 17, 2015
    Assignee: Well Being Digital Limited
    Inventors: Chor Tin Ma, Kai Kin Chan, Ming Yip Wong, Kai Wai Yeung, Fo Chau
  • Patent number: 8117888
    Abstract: A method and apparatus for calibrating or adjusting an accelerometer, wherein the accelerometer is held stationary to obtain the signal outputs from the accelerometer, representing component vectors making up the composite vector of 1 g. Thus, gain or sensitivity, and the zero-g signal offset along for each axis of the accelerometer is determined and adjustable.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: February 21, 2012
    Assignee: Perception Digital Limited
    Inventors: Kai Kin Chan, Chor Tin Ma
  • Patent number: 7930135
    Abstract: A person's exercise monitored using an accelerometer to detect and count the steps of the person. Furthermore, acceleration profiling distinguishes walking from running and total distance covered in the exercise is estimated using different stride lengths for walking and running. The person's pace may be maintained using a music playback unit with an adjustable rate of playback to influence the pace of the person with the music tempo.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: April 19, 2011
    Assignee: Perception Digital Limited
    Inventors: Chor-Tin Ma, Kai-Kin Chan
  • Publication number: 20100199744
    Abstract: A method and apparatus for calibrating or adjusting an accelerometer, wherein the accelerometer is held stationary to obtain the signal outputs from the accelerometer, representing component vectors making up the composite vector of 1g. Thus, gain or sensitivity, and the zero-g signal offset along for each axis of the accelerometer is determined and adjustable.
    Type: Application
    Filed: August 28, 2009
    Publication date: August 12, 2010
    Applicant: Perception Digital Limited
    Inventors: Kai Kin CHAN, Chor Tin MA
  • Patent number: 7680827
    Abstract: A method of automatically selecting at least one of stored multimedia files for transfer between a first storage medium and a second storage medium. In the method, each stored file is assigned a popularity weighting based on popularity information and files are selected that have a popularity weighting within a preferred range.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: March 16, 2010
    Assignee: Perception Digital Limited
    Inventors: Astley Kai Kin Chan, Oliver Yuk Hang Leung, Iris Cheung, Dennis Sai Kit Lai, Jack Lau
  • Publication number: 20100010774
    Abstract: A person's exercise monitored by using an accelerometer to detect and count the steps of the person. Furthermore, acceleration profiling distinguishes walking from running and total distance covered in the exercise is estimated using different stride lengths for walking and running. The person's pace may be maintained using a music playback unit capable of adjusting the rate of the playback so as to influence the person by the music tempo.
    Type: Application
    Filed: December 23, 2008
    Publication date: January 14, 2010
    Applicant: PERCEPTION DIGITAL LTD.
    Inventors: Chor-Tin Ma, Kai Kin Chan
  • Patent number: 7571015
    Abstract: A personal audio player has a housing, an audio output device in the housing and an audio player in the housing and coupled with the output device for storing and playing audio files. Multiple display panels are located on the housing. Each display panel is controlled to have a unique presentation format for presenting different information to a user. A user interface on the housing has different illumination colors respectively corresponding to different operation modes of the audio player. A lyrics processor outputs lyric text to one of the display panels in synchronisation with playing of a corresponding audio file.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: August 4, 2009
    Assignee: Perception Digital Limited
    Inventors: Kai Kin Chan, Yuk Hang Leung, Sai Kit Lai, Jack Lau
  • Publication number: 20090177097
    Abstract: A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. Light emitters and light detectors are located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and detecting reflected light signals from the different areas of tissue surrounding the body part.
    Type: Application
    Filed: August 21, 2008
    Publication date: July 9, 2009
    Applicant: PERCEPTION DIGITAL LIMITED
    Inventors: Chor Tin Ma, Kai Kin Chan, Ming Yip Wong, Kai Wai Yeung, Fo Chau
  • Patent number: 7548851
    Abstract: A musical jukebox is disclosed which provides for: fast archiving of songs; a flexible user interface; easy and convenient entry of, access to and/or display of data relating to songs archived by the jukebox; easy and convenient search and locate capabilities for locating, reviewing, retrieving and/or playing songs stored in the jukebox; and low cost relative to the functionality, features, conveniences and user-friendliness provided by the jukebox. Fast of flush archiving of songs (as well as other data and signals) is accomplished by first saving sets of data without compression, which allows the data to be entered quickly, and then, compressing later at an appropriate time. A unique MP3 bit allocation encoding scheme is used to compress data. A unique memory allocation supports fast data archiving. The user interface employs two-way communication between a remote control and the jukebox. A searchable song database is structured to enable very fast searching by music category, and also by title and artist.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: June 16, 2009
    Inventors: Jack Lau, Chi Ying Tsui, Roger Shu Kwan Cheng, Chi Wai Yung, Jimmy Tai Kwan Tang, Kin Ping Ng, Sai Kit Lai, Kai Kin Chan, Wing Chau Chan
  • Publication number: 20080204359
    Abstract: A display device has a screen for displaying digital images located on a housing that encloses a storage medium for storing the digital images, and a processor for performing functions such reading images from the storage medium and displaying the images on the display screen. A frame detachably securable to the housing surrounds the display screen, and electronically communicates with the processor when secured to the housing for configuring how the processor performs the functions of the display device.
    Type: Application
    Filed: April 17, 2007
    Publication date: August 28, 2008
    Applicant: PERCEPTION DIGITAL LIMITED
    Inventors: Chi-Ying TSUI, Ping KOW, Kai Kin CHAN, Chor Tin MA
  • Publication number: 20080195474
    Abstract: A method of providing media content for a portable media player makes available in a database entertainment content and message content for downloading and storing on a portable media player. The message content is downloaded and stored on the media player with the entertainment content for playing on the media player in connection with playing of the entertainment content. The play data for entertainment content and/or message content stored on the media player is uploading to the database or another database.
    Type: Application
    Filed: March 23, 2007
    Publication date: August 14, 2008
    Inventors: Jack LAU, Chi-Ying TSUI, Kai Kin CHAN, Ping KOW, Chor Tin MA
  • Publication number: 20070043765
    Abstract: A method of automatically selecting at least one of stored multimedia files for transfer between a first storage medium and a second storage medium. In the method, each stored file is assigned a popularity weighting based on popularity information and files are selected that have a popularity weighting within a preferred range.
    Type: Application
    Filed: August 18, 2006
    Publication date: February 22, 2007
    Applicant: PERCEPTION DIGITAL LIMITED
    Inventors: Astley Kai Kin CHAN, Oliver Yuk Hang LEUNG, Iris CHEUNG, Dennis Sai Kit LAI, Jack LAU