Patents by Inventor Tuomas Huikko

Tuomas Huikko 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).

  • Integrated multiplier circuit
    Patent number: 6373317
    Abstract: An IC multiplier circuit has four cells having bipolar transistors to give an exponential input-output function. Each cell has a squaring bipolar transistor and an emitter follower. Differential output signals are taken from the squaring bipolar transistor. The voltage follower is an emitter follower with the bias current through it is substantially larger, e.g. about 10 times larger, than the bias current through the squaring bipolar transistor, which has an emitter resistor.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: April 16, 2002
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Pekka Kostiainen, Kari Halonen, Tuomas Huikko