Patents by Inventor Karl Håkan Torbjörn Gärdenfors

Karl Håkan Torbjörn Gärdenfors 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).

  • RADIO TRANSCEIVER ON A CHIP
    Publication number: 20150139047
    Abstract: An entire radio transceiver can be easily integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Application
    Filed: December 22, 2014
    Publication date: May 21, 2015
    Inventors: Karl Håkan Torbjörn GÄRDENFORS, Sven MATTISSON, Jacobus Cornelis HAARTSEN
  • Radio transceiver on a chip
    Patent number: 8954020
    Abstract: An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: February 10, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Karl Håkan Torbjörn Gärdenfors, Sven Mattisson, Jacobus Cornelis Haartsen
  • RADIO TRANSCEIVER ON A CHIP
    Publication number: 20140092719
    Abstract: An entire radio transceiver can be compeltely integrated into one IC chip. In order to integrate the IF filters on the chip, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wise are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Application
    Filed: December 2, 2013
    Publication date: April 3, 2014
    Applicant: Telefonaktiebolaget L M Ericssson (publ)
    Inventors: Karl Håkan Torbjörn Gärdenfors, Sven MATTISSON, Jacobus Cornelis HAARTSEN
  • Radio Transceiver on a Chip
    Publication number: 20120028595
    Abstract: An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 2, 2012
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSSON (PUBL)
    Inventors: Karl Håkan Torbjörn Gärdenfors, Sven Mattisson, Jacobus Cornelis Haartsen
  • RADIO TRANSCEIVER ON A CHIP
    Publication number: 20090268643
    Abstract: An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Application
    Filed: July 13, 2009
    Publication date: October 29, 2009
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSSON (PUBL)
    Inventors: Karl Håkan Torbjörn Gärdenfors, Sven Mattisson, Jacobus Cornelis Haartsen
  • Radio transceiver on a chip
    Patent number: 7580683
    Abstract: An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: August 25, 2009
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Karl Håkan Torbjörn Gärdenfors, Sven Mattisson, Jacobus Cornelis Haartsen
  • Radio transceiver on a chip
    Patent number: 7269144
    Abstract: An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Grant
    Filed: November 11, 2005
    Date of Patent: September 11, 2007
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Karl Håkan Torbjörn Gärdenfors, Sven Mattisson, Jacobus Cornelis Haartsen
  • Radio transceiver on a chip
    Patent number: 7068171
    Abstract: An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: June 27, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Karl Håkan Torbjörn Gärdenfors, Sven Mattisson, Jacobus Cornelis Haartsen