Device for effecting a modification in a stream of transmission cells
First Claim
1. Device for effecting a modification in a stream of transmission blocks provided withdetection means for detecting a transmission block to be modified and for generating a detection signal,memory means for generating, in response to the detection signal, the modification to be applied,combining means for combining the unmodified stream of transmission blocks and the modification to be applied, provided with a first input for receiving the stream of unmodified transmission blocks, with a second input for receiving the modification to be applied and with an output for generating a modified stream of transmission blocks, anddelay means for effecting a delay in said unmodified stream of transmission blockscharacterized in that the detection means comprises the delay means and in that the combining means comprises switch-over means for coupling one of said inputs of said combining means through to the output thereof, as a function of the detection signal, the combining means being bufferless.
3 Assignments
0 Petitions
Accused Products
Abstract
A device for effecting a modification in a stream of transmission blocks detects a transmission block to be modified and generates a detection signal via detection means, which comprises delay means for effecting a delay in the stream of transmission blocks. The device further comprises memory means for generating, in response to the detection signal, the modification to be applied, and combining means for combining the stream of transmission blocks and the modification to be applied, provided with a first input for receiving the stream of transmission blocks, with a second input for receiving the modification to be applied and with an output for generating a modified stream of transmission blocks. The combining means comprises switch-over means for coupling one of the inputs through to the output, as a function of the detection signal. Due to the use of the switch-over means and due to the delay means being a part of the detection means, the combining means can be bufferless.
35 Citations
5 Claims
-
1. Device for effecting a modification in a stream of transmission blocks provided with
detection means for detecting a transmission block to be modified and for generating a detection signal, memory means for generating, in response to the detection signal, the modification to be applied, combining means for combining the unmodified stream of transmission blocks and the modification to be applied, provided with a first input for receiving the stream of unmodified transmission blocks, with a second input for receiving the modification to be applied and with an output for generating a modified stream of transmission blocks, and delay means for effecting a delay in said unmodified stream of transmission blocks characterized in that the detection means comprises the delay means and in that the combining means comprises switch-over means for coupling one of said inputs of said combining means through to the output thereof, as a function of the detection signal, the combining means being bufferless.
Specification