TH20604B - Signal transmission method - Google Patents

Abstract

By means of a signal that is divided by windows in a continuous nested block. Some of the signals contained within the block are converted to spectroscopy by conversion. Later, the spectrum was encrypted. Sent after transmission, it is decoded and partially converted back to the signal by the final invert. The partially contained blocks are combined in a nested way. where the overlapping regions of the blocks are weighted in such a way that the sum of the window functions is 1 to prevent interference in adjacent blocks by altering the signal. Length of the function window is selected depending on the signal change. This method is suitable for audio and video signals that are subject to data degradation during transmission.

Claims (1)

1. Method for transmitting sound that is divided by the Windows function (f(n),g(n))(Windowfunction) into a continuous overlapping window. where some signals are contained in such windows, which in each case will be converted to spectral conversion where the spectrum is subsequently encoded, transmitted, decoded, and subsequently reconstituted to a partial signal by reverse transmutation. depending on the window that contains the signal Such parts are to be assembled in an overlapping manner, where the overlapping regions in the window are weighted so that the result of the window function (f(n),g(n)) is equal to one and where window functions of subsequent windows are created in the overlapping region of the previous windows. by mirroring the function window that appeared in this area in the previous window. The peculiarity is that the length is the length of the window function (f(n),g(n)) is covered by the signal change function. where the length of the function window will be selected as small for signal changes. where large and large are for small signal changes, and where different set of window functions (f(n),g(n)) are defined from the set in each case of the window function that is provided as a function of signal change and, during transmission, an index number that explicitly identifies the organized window function is passed, and wherein the sinusoidal window function is select high frequency And in contrast to the Small Function Window and the two different Windows Functions that are asymmetrical in shape, they are contained in the package. and where high amplitude jumps are positioned in a window with a small function window and where in each case a window with a function window Small, there will be a function window nearby that is asymmetrical, there will be a window nearby that has a function window that is sine-shaped. and where the corresponding half-windows of function windows (f(n),g(n)) of adjacent windows correspond to the equations in the overlapping region: f(N-1-n)=g(n) 0<=n<=N/2-1 f2(N/2+n)+g2(n)=2 0<=n<=N/2-1 where N is equal to the number of sample windows.