Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2008-03-11
2008-03-11
Ghayour, Mohammed (Department: 2611)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S514000, C375S253000, C375S242000, C375S246000
Reexamination Certificate
active
10493286
ABSTRACT:
With audio data reduction on the basis of ISO/IEC standard 11172-3, a frame length varying by 8 bits is used at a sampling frequency of 44.1 kHz in order to arrive, on average, at a particular fixed data rate. The lengthening of a data frame is signalled by a padding bit in the header of the frames. The invention dispenses with evaluation of the padding bit. Instead, the mean frame length L is calculated, L is rounded down to the next integer, for the subsequent frame it is first established whether the expected sync word for this frame appears, and, if this is so, this frame is decoded without taking into account the padding bit, but if the expected sync word for this frame does not appear, the decoding of the frame is started one 8-bit later without taking into account the padding bit.
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Search Report dated Jan. 22, 2003.
Böhm Johannes
Schröder Ernst F
Ghayour Mohammed
Kiel Paul P.
King Sonia J
Laks Joseph J.
Thomson Licensing
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