Patents by Inventor Ynjium P. Wang

Ynjium P. Wang 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: 6424830
    Abstract: A portable data terminal for use in a portable data collection network including a backbone network and a plurality of access points coupled to the backbone network. The portable data terminal includes a keypad for inputting data; a barcode reader for inputting barcode information an RF transceiver for wirelessly communicating at least one of data input via the keypad and barcode information read by the barcode reader to the backbone network by way of at least one of the plurality of access points a speaker; and a voice circuit operatively coupled to the RF transceiver and the speaker for receiving voice data via the RF transceiver, and for converting the voice data into a voice signal which is output through the speaker.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: July 23, 2002
    Assignee: Telxon Corporation
    Inventors: Timothy P. O'Hagan, Ynjium P. Wang
  • Patent number: 5159635
    Abstract: A system for representing and recognizing data in machine readable graphic image form in which data to be encoded is entered into the system and a processor encodes the data into a two-dimensional pattern of graphic indicia and generates transfer drive signals representative of the indicia. A transferring device such as a printer transfers an image of the two-dimensional pattern of graphic indicia onto a carrier such as a card or paper document in response to the transfer drive signals. A recognition device converts the image on the carrier into electrical signals representative of the graphic indicia and decodes the signals into output signals representative of the data for further processing or use.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: October 27, 1992
    Assignee: Symbol Technologies, Inc.
    Inventor: Ynjium P. Wang