Patents by Inventor Tsung-Lu Tsai

Tsung-Lu Tsai 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).

  • Layout of wireless communication circuit on a printed circuit board
    Patent number: 6876836
    Abstract: A layout of a wireless communication circuit on a printed circuit board (PCB), which is a rectangular board wherein a first side is a Y-axis and a second side is an X-axis. The layout has a first antenna located at a corner between the first side and the second side. An antenna switch and a first filter are located at middle y-coordinate and a X-coordinate. A RF integrated circuit (RFIC) is located after the first filter. A first regulator is located near the second side and higher than the RFIC. A media access control (MAC) is located at about a middle y-coordinate and higher than the first regulator. An oscillator is located at a corner between the second side and the third side. A second regulator is located near the fourth side and above the first regulator. A power amplifier is located near the fourth side above the RFIC. A second filter and a transmitting/receiving (T/R) switch are located before the power amplifier. A second antenna is located at a corner between the first side and the fourth side.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: April 5, 2005
    Assignee: Integrated Programmable Communications, Inc.
    Inventors: Tsung-Liang Lin, Tsung-Lu Tsai, Jan-Kwo Leeng
  • Layout of wireless communication circuit on a printed circuit board
    Publication number: 20040018814
    Abstract: A layout of a wireless communication circuit on a printed circuit board (PCB), which is a rectangular board wherein a first side is a Y-axis and a second side is an X-axis. The layout has a first antenna located at a corner between the first side and the second side. An antenna switch and a first filter are located at middle y-coordinate and a X-coordinate. A RF integrated circuit (RFIC) is located after the first filter. A first regulator is located near the second side and higher than the RFIC. A media access control (MAC) is located at about a middle y-coordinate and higher than the first regulator. An oscillator is located at a corner between the second side and the third side. A second regulator is located near the fourth side and above the first regulator. A power amplifier is located near the fourth side above the RFIC. A second filter and a transmitting/receiving (T/R) switch are located before the power amplifier. A second antenna is located at a corner between the first side and the fourth side.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 29, 2004
    Inventors: Tsung-Liang Lin, Tsung-Lu Tsai, Jan-Kwo Leeng