Patents by Inventor Henrik Geis

Henrik Geis 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 circuit
    Patent number: 6577212
    Abstract: The invention relates to an integrated gyrator structure, in which each transistor in the gyrator core (preferably MOS devices) has series feedback associated therewith. This allows for compensation over a large bandwidth of the effects of channel delay in the MOS transistors.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: June 10, 2003
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Sven Mattisson, Henrik Geis
  • Equalizer circuits for use in radio frequency signal receivers
    Patent number: 6525621
    Abstract: An equalizer circuit comprises at least one tuneable transconductance element (12, 14, 16, 18, 22) having its operating parameters determined by its supply voltage (Vdd). An automatic tuning means can be used to vary the supply voltage of the or each transconductance element.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: February 25, 2003
    Assignee: Telefon Aktiebolaget LM Ericsson (Publ)
    Inventors: Paulus van Zeijl, Henrik Geis
  • Equaliser circuits
    Publication number: 20010008385
    Abstract: An equaliser circuit comprises at least one tuneable transconductance element (12, 14, 16, 18, 22) having its operating parameters determined by its supply voltage (Vdd). An automatic tuning means can be used to vary the supply voltage of the or each transconductance element.
    Type: Application
    Filed: December 19, 2000
    Publication date: July 19, 2001
    Applicant: Telefonaktiebolaget L M Ericsson
    Inventors: Paulus van Zeijl, Henrik Geis