Patents by Inventor Guillermo Lafarga

Guillermo Lafarga 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).

  • Publication number: 20040132447
    Abstract: A communication system including PSTN and a mobil communication network (1) where the mobile communication network is connected to a fixed cellular terminal (3) and a cable from said terminal is arranged to a fixed standard telephone (5) which forms a first user interface to a subscriber wishing to make a call or take a call. The fixed cellular terminal (3) includes means for radio communication (2) with at least one hands free headsets (6) which forms a second user interface to said subscriber, which give said subscriber the opportunity to make a call and take a call according to first or second of said interface.
    Type: Application
    Filed: March 10, 2004
    Publication date: July 8, 2004
    Inventors: Jan Hirschfeld, Guillermo Lafarga
  • Patent number: 5991641
    Abstract: A method and apparatus set up a call between at least one standard analog terminal and a remote terminal in a network, via a radio terminal and a radio base station. The contents of a memory are initially cleared. If a first dialed digit is received from the standard analog terminal, verification of the radio terminal status is terminated, if it is in progress, and the first dialed digit is stored in the memory, forming the contents of the memory. Verification of the radio terminal status includes, for example, sampling and evaluation of radio signal strengths, determining the service restrictions of the radio terminal, and determining whether the radio terminal is authorized to make a call from the cell in which it is located, using an operator's SIM card. Verification of the radio terminal status is initiated, and the contents of the memory are sent to a buffer. If a subsequently dialed digit is received from the standard analog terminal, verification of the radio terminal status is terminated.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: November 23, 1999
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Joaquin Ignacio Goni, Julio Salazar Orive, Guillermo Lafarga Ibanez