Pulse or digital communications – Transmitters – Quadrature amplitude modulation
Reexamination Certificate
2006-10-31
2006-10-31
Tran, Khai (Department: 2611)
Pulse or digital communications
Transmitters
Quadrature amplitude modulation
C375S308000, C455S456500, C714S749000
Reexamination Certificate
active
07130358
ABSTRACT:
Disclosed is provided a method and apparatus for mapping a stream of bits output from an encoder to a stream of bits for 2m-ary modulation. The method and apparatus divides the stream of bits from the encoder into a first period and a second period. The first period includes bits with higher priority in the stream of the bits output from the encoder, and the second period includes bits with lower priority. The method and apparatus maps the bits existing in the first period to bit positions with higher reliability in a stream of m bits representing each of the bits for 2m-ary modulation, and maps the bits existing in the second period to bit positions with lower reliability in the stream of m bits.
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Ahn Seong-Woo
Ha Sang-Hyuck
Kim Min-Goo
Dilworth & Barrese LLP
Samsung Electronics Co,. Ltd.
Tran Khai
Ware Cicely
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