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Title:
METHOD AND DEVICE FOR ADAPTING THE DATA RATE OF A DATA STREAM
Document Type and Number:
WIPO Patent Application WO2002088928
Kind Code:
A3
Abstract:
The invention relates to an improved method and to a corresponding device for adapting the data rate of a data stream while using a first in, first out (FIFO) memory (1) into which data packets of the data stream with a first data rate are written and out of which the data packets are output with a second data rate. According to the invention, a designated pause (T>P<) is inserted after each output data packet until the next data packet is output. In the event of a no-load operation of the FIFO memory (1), an additional pause (T>FE<) results, which is detected. In addition, the number of the data packets output between a preceding no-load operation and the current no-load operation of the FIFO memory (1) is determined. A longest pause between the data packets can be determined based on this information. Independent of a comparison of this longest pause with the product of the output data packets between two consecutive FIFO no-load operations and the pause (T>P<) to be inserted between the output data packets, it is determined whether an increase of the inserted pause (T>P<) is most likely.

Inventors:
GRANIG WOLFGANG (AT)
MANDL CHRISTIAN (AT)
Application Number:
PCT/EP2002/004216
Publication Date:
November 27, 2003
Filing Date:
April 16, 2002
Export Citation:
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Assignee:
INFINEON TECHNOLOGIES AG (DE)
GRANIG WOLFGANG (AT)
MANDL CHRISTIAN (AT)
International Classes:
G06F5/06; G06F5/10; (IPC1-7): G06F5/06; H04L27/26
Domestic Patent References:
WO1996001535A11996-01-18
Foreign References:
US5535209A1996-07-09
Other References:
STEENDAM ET AL: "Guard time optimization for OFDM transmission over fading channels", IEEE BENELUX CHAPTER ON VEHICULAR TECHNOLOGY AND COMMUNICATIONS. SYMPOSIUM ON COMMUNICATIONS AND VEHICULAR TECHNOLOGY. SCVT. PROCEEDINGS, October 1996 (1996-10-01), Ghent, pages 42 - 48, XP002243075
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