Patents by Inventor Li-Xin Zhen

Li-Xin Zhen 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: 8422987
    Abstract: A method and wireless device augment and manage, respectively, emergency alert messages with additional emergency information. An emergency alert message is determined to have been sent (404) to one or more wireless devices (102) in a given area. The emergency alert message is analyzed (406) to determine a type of emergency associated with the emergency alert message. Optionally, a current location of at least one wireless device (102) within the given area is determined. A message is generated (412), based at least in part on the type of emergency and logistics of the given area, including additional emergency information for augmenting the emergency alert message. The message that has been generated is transmitted to the at least one wireless device (102). This message is, optionally, adjusted based on the location of the device and the logistics of the given area.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: April 16, 2013
    Assignee: Motorola Solutions, Inc.
    Inventors: John Richard Kane, Andrew Aftelak, Farideh Gozleveli, Li-Xin Zhen
  • Patent number: 8200183
    Abstract: A method and information processing system transmit emergency alert system messages to wireless devices. An EAS alert message (302) is transmitted to at least one wireless device (106) using one or more access channels (306) associated with a coverage area. An acknowledgement message (200) is received from the wireless device (106). The acknowledgement message (200) includes at least one of a location associated with the wireless device (106) and an identifier associated with each access channel over which the wireless device (106) received the EAS alert message (302). At least one of a first set of information indicating locations within the coverage area that have successfully received the EAS alert message (302) and a second set of information indicating which access channels have successfully transmitted the EAS alert message (302) to the wireless devices (106) within the coverage area are stored based on receiving the acknowledgement message.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: June 12, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Andrew Aftelak, Li-Xin Zhen
  • Patent number: 7650445
    Abstract: A portable electronic communication device, designed for voice and data communication is utilized as a peripheral input device for transmitting/providing character inputs, entered in the first device's touch input mechanism, to a second electronic device. The first device has a mode switching utility that switches the first device between a first standard communication mode and a second peripheral input device mode. When the first device is in the second peripheral input device mode, the first device operates as a peripheral input device for the second device.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: January 19, 2010
    Assignee: Motorola, Inc.
    Inventors: Changxue Ma, Wei Lin, Li-Xin Zhen
  • Publication number: 20090227224
    Abstract: A method and information processing system transmit emergency alert system messages to wireless devices. An EAS alert message (302) is transmitted to at least one wireless device (106) using one or more access channels (306) associated with a coverage area. An acknowledgement message (200) is received from the wireless device (106). The acknowledgement message (200) includes at least one of a location associated with the wireless device (106) and an identifier associated with each access channel over which the wireless device (106) received the EAS alert message (302). At least one of a first set of information indicating locations within the coverage area that have successfully received the EAS alert message (302) and a second set of information indicating which access channels have successfully transmitted the EAS alert message (302) to the wireless devices (106) within the coverage area are stored based on receiving the acknowledgement message.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 10, 2009
    Applicant: Motorola, Inc.
    Inventors: Andrew Aftelak, Li-Xin Zhen
  • Publication number: 20090213085
    Abstract: The present invention provides a method (200) of entering characters into an electronic device (100). The method comprises receiving a number of scribed stroke samples (207) from a touch sensitive tablet (105) of the device, the scribed strokes corresponding to lines of one or more characters. Determining a character entry height (221) of a character entry scribing region (180) of the tablet dependent on the received scribed stroke samples. Determining a character entry speed for the character entry scribing region of the tablet dependent on the received scribed stroke samples (217). Scrolling the character entry scribing region on a display (105) of the device depending on the character entry speed.
    Type: Application
    Filed: October 6, 2006
    Publication date: August 27, 2009
    Applicant: Motorola, Inc.
    Inventors: Li Xin Zhen, Qing Shan Chen, Bai Hua Xiao
  • Publication number: 20090170468
    Abstract: A method and wireless device augment and manage, respectively, emergency alert messages with additional emergency information. An emergency alert message is determined to have been sent (404) to one or more wireless devices (102) in a given area. The emergency alert message is analyzed (406) to determine a type of emergency associated with the emergency alert message. Optionally, a current location of at least one wireless device (102) within the given area is determined. A message is generated (412), based at least in part on the type of emergency and logistics of the given area, including additional emergency information for augmenting the emergency alert message. The message that has been generated is transmitted to the at least one wireless device (102). This message is, optionally, adjusted based on the location of the device and the logistics of the given area.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Applicant: Motorola, Inc.
    Inventors: John Richard Kane, Andrew Aftelak, Farideh Gozleveli, Li-Xin Zhen
  • Publication number: 20090066541
    Abstract: A portable electronic communication device, designed for voice and data communication is utilized as a peripheral input device for transmitting/providing character inputs, entered in the first device's touch input mechanism, to a second electronic device. The first device has a mode switching utility that switches the first device between a first standard communication mode and a second peripheral input device mode. When the first device is in the second peripheral input device mode, the first device operates as a peripheral input device for the second device.
    Type: Application
    Filed: September 12, 2007
    Publication date: March 12, 2009
    Applicant: Motorola, Inc.
    Inventors: Changxue Ma, Wei Lin, Li-Xin Zhen
  • Publication number: 20070070045
    Abstract: A method of entering a character into an electronic device (100) is provided. The method comprises automatically performing a scribed stroke character input mode (220) at a touch sensitive tablet (170) of the device (100) in response to receiving at least one scribed stroke on the touch sensitive tablet (215). Recognising an end of character input stroke sequence (225) and determining from the stroke sequence a list of potential stroked input characters (235). Displaying the list of potential stroked input characters on a display of the device (240). Automatically performing a key selection character input mode (320) in response to a actuation of at least one of a plurality of character input keys (165) of the device and determining one or more potential keyed input characters corresponding to sequential actuation of the at least one of the character keys (330).
    Type: Application
    Filed: September 27, 2005
    Publication date: March 29, 2007
    Inventors: Shu-Chuan Sung, Alan Yang, Li-Xin Zhen
  • Publication number: 20050041865
    Abstract: According to one aspect of the invention there is provided a method (20) and electronic device (1) for determining orientation and recognition of handwritten characters scribed on touchscreen (5). The method (20) includes receiving (22) the hand written character and then normalizing (23) the character to provide a scaled character that fits within a defined boundary. The scaled character comprises at least one line and a step of identifying (24) the lines of the scaled character as a vector is effected and thereafter a step of rotating (26) rotates the scaled character from an initial orientation to a final orientation through a plurality of discrete orientations. A step of calculating (27) then calculates, for each of the discrete orientations, magnitudes of co-ordinate components of each vector and then a summing step (28) then sums, for each of said discrete orientations, the co-ordinate components to provide a summed co-ordinate component for the scaled character at a corresponding discrete orientation.
    Type: Application
    Filed: September 30, 2004
    Publication date: February 24, 2005
    Inventors: Li Xin Zhen, Jian Cheng Huang, Feng Jun Guo