Patents by Inventor Di-An Hong

Di-An Hong 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: 7983426
    Abstract: A method for monitoring and reporting sound pressure level exposure for a user of a first communication device (104) is implemented in one embodiment when the device measures a sound pressure level (SPL) of the surrounding environment. The device stores at least the SPL measurement in a memory, producing an SPL exposure record, and displays a visual representation of the SPL exposure record on a display screen (212). In another embodiment, the SPL is measured by a second communication device (102) and combined with a known SPL for an output audio transducer (306) of the second device, producing a user sound exposure level. The user sound exposure level is transmitted to the first communication device. The user is notified when the user sound exposure level exceeds a predetermined threshold. A server (112) may also be used to track SPLs over time and recommend corrective action when exposure limits are exceeded.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 19, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Francesca Schuler, Di-An Hong, Krishna D. Jonnalagadda, Kaustubh R. Kale, Alif Khawand, Jose C. Lacal, Padmaja Ramadas
  • Publication number: 20090054752
    Abstract: A photoplethysmographic sensing system for determining a user's pulse rate includes a light emitting device (100, 201, 310, 500) including a first plurality of light emitting particles (108, 208, 317) having a first diameter and emitting light having a first wavelength. A detector (118, 218, 500) is positioned to receive light emitted from the plurality of light emitting particles (108, 208, 317) and a processing device (500) determines the pulse rate. The light emitting device (100, 201, 310, 500) and the detector (118, 218, 500) are disposed on a flexible polymeric material (102, 202, 334). The light emitting device (100, 201, 310, 500) may include a second plurality of light emitting particles (108, 208, 317) having a second diameter and emitting light having a second wavelength, wherein the processing device (500) determines the user's blood oxygen level. The light emitting particles (108, 208, 317) may comprise one of quantum dots, electroluminescent particles, or organic particles.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Krishna Jonnalagadda, Di-An Hong, Xun Luo, Francesca Schuler, Andrew Skipor
  • Publication number: 20080159547
    Abstract: A method for monitoring and reporting sound pressure level exposure for a user of a first communication device (104) is implemented in one embodiment when the device measures a sound pressure level (SPL) of the surrounding environment. The device stores at least the SPL measurement in a memory, producing an SPL exposure record, and displays a visual representation of the SPL exposure record on a display screen (212). In another embodiment, the SPL is measured by a second communication device (102) and combined with a known SPL for an output audio transducer (306) of the second device, producing a user sound exposure level. The user sound exposure level is transmitted to the first communication device. The user is notified when the user sound exposure level exceeds a predetermined threshold. A server (112) may also be used to track SPLs over time and recommend corrective action when exposure limits are exceeded.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventors: Francesca Schuler, Di-An Hong, Krishna D. Jonnalagadda, Kaustubh R. Kale, Alif Khawand, Jose C. Lacal, Padmaja Ramadas
  • Publication number: 20080132798
    Abstract: A multi-functional wireless headset may include a heart rate sensing assembly configured to detect heart rate data of a wearer of the headset, and a wireless communication unit configured to communicate heart rate data to a gateway device.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Applicant: Motorola, Inc
    Inventors: Di-An Hong, Mark W. Cholewczynski, Janice M. Danvir, Krishna D. Jonnalagadda, Francesca Schuler
  • Publication number: 20080103701
    Abstract: Software (100, 600, 1000, 1100) for automatically designing and optimizing signal processing networks (e.g., 200, 700, 800, 900) is provided. The software use genetic programming e.g., gene expression programming in combination with numerical optimization, e.g., a hybrid differential evolution/genetic algorithm numerical optimization to design and optimize signal processing networks.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 1, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Weimin Xiao, Di-An Hong, Magdi A. Mohamed, Chi Zhou
  • Patent number: 7148878
    Abstract: Biometric sensors such as electromyographic sensors 21A and 21B sense muscle flexing. The resultant signals are sensed 11 and utilized to establish 13 a corresponding angle of movement and to establish 15 magnitude of movement for an on-screen display indicator such as an on-screen cursor 61. In one embodiment, the electromyographic sensor signals are shifted and scaled 31. Wireless transmissions can be utilized to increase portability of the sensor interface.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: December 12, 2006
    Assignee: Motorola, Inc.
    Inventors: Di-An Hong, Swee Mean Mok, Tom Mathew
  • Publication number: 20050049517
    Abstract: An electromyogram device (10) have a conformable housing (11) that houses or otherwise supports an electromyogram signal processor (13), electromyogram sensors (14), and a display (15) that provides, for example, information corresponding to one or more muscle condition parameters such as muscular fatigue. In various embodiments, the device can further include additional displays (34), memory (31), audible alarm mechanisms (32), and/or a wireless receiver and/or transmitter (33). In one embodiment, such devices can communicate amongst one another to permit central and/or remote display of the resultant electromyogram information.
    Type: Application
    Filed: September 3, 2003
    Publication date: March 3, 2005
    Inventors: Thomas Mathew, Di-An Hong, George Valliath, William Olson
  • Publication number: 20040015096
    Abstract: A wireless biopotential sensor includes an adhesive strip having a lower surface for placement against the skin of a patient and an upper surface. A pair of conductive electrodes are applied to the lower surface of the adhesive strip. A sensor substrate is applied to the upper surface. The sensor substrate includes first and second conductive contact pads that are placed in registry with the pair of conductive electrodes, with the contact pads arranged in electrical contact with the conductive electrodes. An electronics module is applied to the sensor substrate and arranged in electrical contact with the contact pads. The electronics module comprises a power supply and electronics for generating a wireless signal containing biopotential signals detected by the pair of conductive electrodes.
    Type: Application
    Filed: July 10, 2003
    Publication date: January 22, 2004
    Inventors: Swee Mok, Di-An Hong, Thomas S. Babin, Sanjar Ghaem
  • Patent number: 6643541
    Abstract: A wireless biopotential sensor includes an adhesive strip having a lower surface for placement against the skin of a patient and an upper surface. A pair of conductive electrodes are applied to the lower surface of the adhesive strip. A sensor substrate is applied to the upper surface. The sensor substrate includes first and second conductive contact pads that are placed in registry with the pair of conductive electrodes, with the contact pads arranged in electrical contact with the conductive electrodes. An electronics module is applied to the sensor substrate and arranged in electrical contact with the contact pads. The electronics module comprises a power supply and electronics for generating a wireless signal containing biopotential signals detected by the pair of conductive electrodes.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: November 4, 2003
    Assignee: Motorola, Inc
    Inventors: Swee Mok, Di-An Hong, Thomas S. Babin, Sanjar Ghaem
  • Publication number: 20030107608
    Abstract: Biometric sensors such as electromyographic sensors 21A and 21B sense muscle flexing. The resultant signals are sensed 11 and utilized to establish 13 a corresponding angle of movement and to establish 15 magnitude of movement for an on-screen display indicator such as an on-screen cursor 61. In one embodiment, the electromyographic sensor signals are shifted and scaled 31. Wireless transmissions can be utilized to increase portability of the sensor interface.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 12, 2003
    Applicant: Motorola, Inc.
    Inventors: Di-An Hong, Swee Mean Mok, Tom Mathew
  • Publication number: 20030109905
    Abstract: A wireless biopotential sensor includes an adhesive strip having a lower surface for placement against the skin of a patient and an upper surface. A pair of conductive electrodes are applied to the lower surface of the adhesive strip. A sensor substrate is applied to the upper surface. The sensor substrate includes first and second conductive contact pads that are placed in registry with the pair of conductive electrodes, with the contact pads arranged in electrical contact with the conductive electrodes. An electronics module is applied to the sensor substrate and arranged in electrical contact with the contact pads. The electronics module comprises a power supply and electronics for generating a wireless signal containing biopotential signals detected by the pair of conductive electrodes.
    Type: Application
    Filed: December 7, 2001
    Publication date: June 12, 2003
    Inventors: Swee Mok, Di-An Hong, Thomas S. Babin, Sanjar Ghaem