Method for transmitting data among subscriber stations of a bus system

  • US 9,137,037 B2
  • Filed: 06/11/2010
  • Issued: 09/15/2015
  • Est. Priority Date: 06/16/2009
  • Status: Active Grant
First Claim
Patent Images

1. A method for transmitting data among subscriber stations of a bus system over a first channel of the bus system that is jointly used by a plurality of subscriber stations, comprising:

  • besides over the first channel, transmitting data over a second channel that is used by the plurality of subscriber stations;

    controlling access to the second channel by an access method; and

    transmitting first data to be transmitted over the first channel and second data to be transmitted over the second channel over a shared signal line;

    wherein;

    the transmitting of the first data includes generating a data signal as a function of the first data, generating a modulated signal as a function of the second data, superimposing the modulated signal on the data signal, and transmitting the superimposed signals over the shared signal line;

    the access to the second channel by any particular subscriber station is controlled in a manner that allows the second channel to only be enabled for the particular subscriber station within an enable interval;

    the enable interval is an interval during which the particular subscriber station has exclusive access to the first channel;

    a beginning of the enable interval is ascertained by the subscriber station by a bitwise arbitration of the first channel; and

    an end of the enable interval is specified as soon as the subscriber station re-enables the first channel following a successful arbitration of the first channel.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×