Method for transmitting a signal

Details Method for transmitting a signal Method for transmitting a signal

H - Electricity

04

B

325/47

H04B 1/04 (2006.01) H04B 1/66 (2006.01)

Patent

CA 2026441

A method of transmitting a signal wherein the signal is segmented by means of windows into successive overlapping blocks, the partial signals contained in the blocks are converted by transformation into a spectrum, with the spectra then being coded, transmitted, decoded after transmission and converted back into partial signals by retransformation. Finally, the blocks containing the partial signals are joined in an overlapping manner, with the overlapping regions of the blocks being weighted such that the resultant of the window functions in the respective overlapped regions equals one. In order to avoid interferences in adjacent blocks upon changes in the signal amplitude, the length of the window functions is selected as a function of signal amplitude changes. The method is suitable for the treatment of audio and video signals which are subjected to data reduction during transmission.

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