Method and device for controlling stuffing
AssigneeInfineon Technologies AG
InventorsStefan Honken, Ronalf Kramer
Life of this patent
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Abstract
A method and device for controlling the phase of successively transmitted frames, in which data symbols are transmitted at a constant symbol frequency, in which a phase difference between the clock of the frame transmission and a data clock is determined and, dependent on the phase difference, an adjusting signal is produced for controlling the injection of stuffing data symbols into the frames for changing the frame length and the phase of the frame transmission, whereby the phase of the frame transmission is controlled so that the frames are transmitted on average synchronously with the data clock, wherein the adjusting signal is produced dependent on the phase difference determine from N frame in each successively transmitted, whereby N is at least 2.
Claims17
Method for controlling a phase of successively transmitted frames, in which data symbols are transmitted at a constant symbol frequency, comprising the steps of:
- determining a phase difference between a clock of a frame transmission and a data clock corresponding to the frequency at which the data symbols are transmitted;
- producing an adjusting signal based on the determined phase difference in order to control an injection of stuffing data symbols into the frames for changing frame length and the phase of the frame transmission, whereby the phase of the frame transmission is controlled so that the frames are transmitted on average synchronously with the data clock,
- wherein the adjusting signal is produced dependent on the phase difference determined from N frames in each case successively transmitted, whereby N is at least equal to 2.
Phase detector for use in a device for controlling a phase of successively transmitted frames, in which data symbols are transmitted at a constant symbol frequency, comprising:
- the phase detector is configured to determine a phase difference between a clock of a frame transmission and a data clock corresponding to the frequency at which the data symbols are transmitted, and produce an output signal, the output signal being dependent on the phase difference determined from N frames in each case successively transmitted, whereby N is at least equal to 2, and
- a controlling device configured to produce an adjusting signal based on the output signal of the phase detector in order to control an injection of stuffing data symbols into the frames for changing frame length and the phase of the frame transmission and controls the phase of the frame transmission so that the frames on average are transmitted synchronously with the data clock.
Device for controlling a phase of successively transmitted frames in which data symbols are transmitted at a constant symbol frequency, comprising:
- a phase detector for determining a phase difference between a clock of a frame transmission and a data clock corresponding to the frequency at which the data symbols are transmitted;
- and
- an adjusting signal generating device, which is connected to the phase detector, and configured to produce an adjusting signal based on the determined phase difference in order to control an injection of stuffing data symbols into the frames for changing the frame length and the phase of the frame transmission,
- whereby the device is configured to control the phase of the frame transmission so that the frames on average are transmitted synchronously with the data clock, and whereby the device is set up in such a manner that it produces the adjusting signal dependent on the phase difference determined from N frames in each case successively transmitted, whereby N is at least equal to 2.
Dependencies are inferred from the claim text.