Pulse or digital communications – Bandwidth reduction or expansion
Reexamination Certificate
2007-09-25
2007-09-25
Odom, Curtis (Department: 2611)
Pulse or digital communications
Bandwidth reduction or expansion
C375S240250, C704S200000, C704S500000, C704S501000, C704S502000, C704S503000, C348S014130
Reexamination Certificate
active
10386910
ABSTRACT:
In a telecommunications system, an arithmetic logic unit (ALU) that receives an input signal. The input signal includes a digital signal representative of an analog signal. The ALU selectively performs compression and decompression on the digital signal. The ALU comprises the following elements. A standard ALU component performs standard ALU operations on the input signal. An encoding unit selectively performs compression on the digital signal. A decoding unit selectively performs decompression on the digital signal. An instruction decoder receives and decodes an ALU instruction. An output selector selects a result from one of the standard ALU component, the encoding unit, and the decoding unit in accordance with the decoded instruction and provides the result as an output.
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patent: 4718057 (1988-01-01), Venkitakrishnan et al.
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patent: 5883925 (1999-03-01), Sinibaldi et al.
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patent: 2004/0025000 (2004-02-01), Wise et al.
CIENA Corporation
Merek & Blackmon & Voorhees, LLC
Odom Curtis
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