Method and circuit for reading code words having variable lengths out of a memory used for code words having fixed lengths of words
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United States of America Patent
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Jun 16, 1998
Grant Date -
N/A
app pub date -
Nov 21, 1995
filing date -
Nov 21, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A circuit and method for reading code words having variable lengths out of memory used for data words having a fixed length. In the circuit and method, two shifting operations are separated from each other in dimension and time. The first shifting operation is performed using a combination of multiplexers and buffers that does not include a barrel shifter. The circuit and method are especially suitable for use in the decompression of data when transmitting multimedia information, such as information based on H.261, JPEG and MPEG standards.
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