Patents by Inventor Josep Prat Aparicio

Josep Prat Aparicio 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).

  • Method and system for mapping channels into a convolutional encoded time divison multiplex in the downlink
    Patent number: 6816501
    Abstract: Method and system for mapping channels into a convolutional encoded time division multiplex in the downlink. In a transmission system comprising a plurality of stations, each station transmits in at least one channel, forming a plurality N of uplink channels that are transmitted, at an uplink information bit rate Ru, towards a destination station. Said destination station transmits in at least one downlink channel at a downlink information bit rate Rd, in such a manner that the relation Rd=N*Ru is satisfied. The number of the uplink channels N varies as a function of a change in a convolutional code rd applied to the downlink channel, so that N is an integer multiple of said variable convolutional code rd.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 9, 2004
    Assignee: Alcatel
    Inventors: Fernando Ortega Rodriguez, Josep Prat Aparicio, Ma Africa Rodriguez Martinez
  • Integrated multispot satellite communication system in a multimedia broadcasting network
    Publication number: 20020006118
    Abstract: Integrated multispot satellite communication system in a multimedia broadcasting network, mainly in digital video broadcasting (DVB) applications. The system employs the DVB-RCS mode in the uplink direction of the communication, i.e. towards the satellite, and multiplexes said signals into a DVB-S type signal in the downlink direction, i.e. the signal leaving the satellite, permitting a user to request broadband interactive services using standard stations both on the transmission side and on the reception side. A regenerator means on board the satellite serves to perform the multiplexing of said downlink signal.
    Type: Application
    Filed: April 25, 2001
    Publication date: January 17, 2002
    Inventors: Fernando Ortega Rodriguez, Josep Prat Aparicio, Ma Africa Rodriguez Martinez
  • Method and system for mapping channels into a convolutional encoded time division multiplex in the downlink
    Publication number: 20010033578
    Abstract: Method and system for mapping channels into a convolutional encoded time division multiplex in the downlink. In a transmission system comprising a plurality of stations, each station transmits in at least one channel, forming a plurality N of uplink channels that are transmitted, at an uplink information bit rate Ru, towards a destination station. Said destination station transmits in at least one downlink channel at a downlink information bit rate Rd, in such a manner that the relation Rd=N*Ru is satisfied. The number of the uplink channels N varies as a function of a change in a convolutional code rd applied to the downlink channel, so that N is an integer multiple of said variable convolutional code rd.
    Type: Application
    Filed: March 16, 2001
    Publication date: October 25, 2001
    Inventors: Fernando Ortega Rodriguez, Josep Prat Aparicio, Ma Africa Rodriguez Martinez