Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
2007-11-20
2007-11-20
Nguyen, Duc M. (Department: 2617)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
C455S303000, C455S312000
Reexamination Certificate
active
10466834
ABSTRACT:
From a delay profile, path selectors105a˜105ndiscard the signals other than those corresponding to valid paths, such as noise, output the channel values, which are obtained through the selection of valid paths alone, to JD decoder106, and output the received levels of the valid paths to multipliers108a˜108n. JD decoder106performs joint detection operation and multiplies the operation result by a received signal that is output from delayer103. Allocator107separates the soft decision data of individual users on a per user basis. Multipliers108a˜108nmultiply outputs of JD decoder and received levels output of path selectors105a˜105n. Error correction decoder109a˜109nperforms the hard decision of the soft decision data so as to obtain each user's demodulation data.
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Elcenko Eric J
Matsushita Electric Industrial Co. Ltd
Nguyen Duc M.
Stevens Davis Miller & Mosher LLP
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