Patents by Inventor Simon W K Lee

Simon W K Lee 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).

  • Passive harmonic-rejection mixer
    Patent number: 8138817
    Abstract: An electronic device comprising a passive harmonic-rejection mixer. The passive harmonic rejection mixer has an input connected to several sub-mixer stages, and the sub-mixer stages are connected to a summing module for generating the output. Each sub-mixing stage comprises a gating module and a respective amplifier, the gating module adapted to selectively pass the input signal or the input signal with inverted polarity under the control of control signals.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: March 20, 2012
    Assignee: NXP B.V.
    Inventors: Johannes Hubertus Antonius Brekelmans, Gerben Willem De Jong, Rachid El Waffaoui, Dennis Jeurissen, Jan Van Sinderen, Simon W K Lee