Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2010-11-01
2011-10-04
Lam, Kenneth (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
C375S267000, C375S295000, C375S130000, C375S347000, C370S328000, C370S344000, C370S338000
Reexamination Certificate
active
08031806
ABSTRACT:
A preamble of a frame for a multiple input multiple output (MIMO) wireless communication for a first transmit antenna of the MIMO communication includes a legacy preamble portion in accordance with a legacy wireless communication protocol. The preamble of the frame for the MIMO wireless communication for the first transmit antenna also includes a current protocol preamble portion in accordance with a protocol of the MIMO wireless communication. The preamble of a frame for at least a second antenna of the MIMO communication includes a cyclically shifted legacy preamble portion for the frame. The preamble of the frame for the MIMO wireless communication for the second transmit antenna also includes a second current protocol preamble portion in accordance with a protocol of the MIMO wireless communication.
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Hansen Christopher J.
Moorti Rajendra Tushar
Trachewsky Jason A.
Young Christopher
Broadcom Corporation
Garlick & Harrison & Markison
Lam Kenneth
Smith Jessica W.
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