Patents by Inventor Tze Swan Tan

Tze Swan Tan 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).

  • Data encoding scheme to reduce sense current
    Patent number: 8189362
    Abstract: Techniques for encoding and decoding fuse data to reduce sense current are disclosed. An embodiment to encode fuse sense data includes inverting each of the bits of the fuse data and using an individual fuse as a flag bit to record the data inversion. The states of the respective fuses may represent different logic states. A fuse may be blown to indicate a logic one and likewise, an unblown fuse may indicate a logic zero. A blown fuse and an unblown fuse may have different current consumption. An unblown fuse may consume more sensing current compared to a blown fuse. Another embodiment to decode the encoded fuse data includes embedded logic circuits and a separate fuse as a flag bit. Encoding and decoding fuse data may reduce fuse sensing current.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: May 29, 2012
    Assignee: Altera Corporation
    Inventors: Jun Pin Tan, Tze Swan Tan, Chuan Khye Chai, Boon Jin Ang, Kar Keng Chua
  • DATA ENCODING SCHEME TO REDUCE SENSE CURRENT
    Publication number: 20110292711
    Abstract: Techniques for encoding and decoding fuse data to reduce sense current are disclosed. An embodiment to encode fuse sense data includes inverting each of the bits of the fuse data and using an individual fuse as a flag bit to record the data inversion. The states of the respective fuses may represent different logic states. A fuse may be blown to indicate a logic one and likewise, an unblown fuse may indicate a logic zero. A blown fuse and an unblown fuse may have different current consumption. An unblown fuse may consume more sensing current compared to a blown fuse. Another embodiment to decode the encoded fuse data includes embedded logic circuits and a separate fuse as a flag bit. Encoding and decoding fuse data may reduce fuse sensing current.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 1, 2011
    Inventors: Jun Pin Tan, Tze Swan Tan, Chuan Khye Chai, Boon Jin Ang, Kar Keng Chua
  • Data encoding scheme to reduce sense current
    Patent number: 7978493
    Abstract: Techniques for encoding and decoding fuse data to reduce sense current are disclosed. An embodiment to encode fuse sense data includes inverting each of the bits of the fuse data and using an individual fuse as a flag bit to record the data inversion. The states of the respective fuses may represent different logic states. A fuse may be blown to indicate a logic one and likewise, an unblown fuse may indicate a logic zero. A blown fuse and an unblown fuse may have different current consumption. An unblown fuse may consume more sensing current compared to a blown fuse. Another embodiment to decode the encoded fuse data includes embedded logic circuits and a separate fuse as a flag bit. Encoding and decoding fuse data may reduce fuse sensing current.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: July 12, 2011
    Assignee: Altera Corporation
    Inventors: Jun Pin Tan, Tze Swan Tan, Chuan Khye Chai, Boon Jin Ang, Kar Keng Chua