TDF Patent applications |
Patent application number | Title | Published |
20130241790 | LARGE-AREA BROADBAND SURFACE-WAVE ANTENNA - The antenna comprises a metal excitation loop (B | 09-19-2013 |
20110055414 | METHOD FOR BROADCASTING A DATA STREAM IN A NETWORK INCLUDING A PLURALITY OF TRANSMITTERS, COMPUTER PROGRAM PRODUCT, HEAD-END AND SYSTEM FOR IMPLEMENTING SAID METHOD - A method is provided for broadcasting a data stream in a network including at least two separate transmitters supplied by a head end. The stream is organised into data frames and includes at least one time marker. The method includes the following steps at the head end: obtaining a first time reference from an external source; obtaining a second time reference from the data stream received by the head end; comparing the first and second time references in order to determine a time shift between the first and second time references; and transmitting the time shift or at least one time marker modified on the basis of the time shift in order to compensate for a transport time variation between the head end and the transmitters. | 03-03-2011 |
20100188978 | METHOD FOR TIME DELAYING DIGITAL CONTENT FLOWS, CORRESPONDING DEVICE, AND COMPUTER PROGRAM PRODUCT - A method is provided for delaying a digital flow broadcast. The digital flow is carried by a plurality of datagrams, each including a first network level flow destination address. The method includes capturing and continuously recording the broadcast datagrams in a temporary recording space, creating a recorded flow. The datagrams of the recorded flow are continuously retransmitted after a preset length of time. | 07-29-2010 |
20080313907 | Method For Reinforcing a Metal Tubular Structure - The invention concerns a method for reinforcing a metal tubular structure ( | 12-25-2008 |
20080278387 | System of Transmit Antennas Adapted to Propagation Conditions for Radio Broadcasting - To broadcast synchronized radio waves in at least one frequency band in a predetermined territory, antennas (AS, ATI, AE) emit waves to respective coverage areas in which receivers (RQ, RB) measure characteristics of the emitted waves and transmit to a central server (SC) . The server analyzes the characteristics (CO) as a function of prediction models for broadcasting waves in the territory in order to determine adjustment parameters for the antennas. The server transmits the adjustment parameters to the antennas to control them in order to offer a greater diversity of radio broadcasting services and to optimize coverage areas according to different wave propagation modes. | 11-13-2008 |
20080212727 | Method for Receiving a Multicarrier Signal Using at Least Two Estimates of a Propagation Channel and Corresponding Reception Device - A method is provided for receiving a multicarrier signal including a time-based succession of symbols, each including a plurality of multicarriers bearing data, at least one of said symbols including at least one reference pilot. The method includes the following steps: a first estimation of a propagation channel, in accordance with a first estimating technique taking into account the or said reference pilots; at least one second estimation of said propagation channel, in accordance with a second estimating technique different from said first technique; comparing said first and second estimations, delivering an error signal; detecting at least one interfering signal in said propagation channel, by analyzing said error signal. | 09-04-2008 |