Patents by Inventor Alfonso Fernández Durań

Alfonso Fernández Durań 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).

  • Transmission/reception unit with bidirectional equalization
    Patent number: 6205170
    Abstract: The present invention refers to a transmission/reception unit that exchanges data with a remote unit by means of a channel using distributed modulation/demodulation treatment means. The transmission/reception unit includes equalization means (23) to equalize a first signal received from said remote unit and predistortion means to predistort a second signal transmitted to said remote unit. According to the invention, the unit is characterized in that the modulation/demodulation treatment means operate in a non-linear way and the unit includes means (230) to store information that is representative of a non-linear distortion of said modulation/demodulation treatment means and which defines a non-linear reference, and means (233) to adjust coefficients (CO) in the equalization means (23) according to the signal received from the remote unit and said representative information, the mentioned adjusted coefficients being transmitted to said predistortion means.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: March 20, 2001
    Assignee: Alcatel
    Inventors: Gregorio Núñez León De Santos, José Manuel Paez Borrallo, Javier Casajús Quirós, Rafael Burriel Lluna, Alfonso Fernández Durań