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Registered FREQUENCY SELECTIVE MODULATING APPARATUS AND METHOD USING RE-SPREADING CODE
- Inventors
- Lim In Gi, Park Hyung-Il, Kang Sung Weon, Kang Tae Wook, Hyoung Chang Hee, Hwang Jung Hwan, Choi Byounggun, Seok Bong Hyun, Kim Jin Kyung, Kim Sung Eun, Park Kyung Hwan, Kim Kyung Soo, Kim Jung Bum, Kang Taeyoung
- Application No.
- 12853499 (2010.08.10)
- Publication No.
- 20110058591 (2011.03.10)
- Registration No.
- 8599902 (2013.12.03)
- Country
- UNITED STATES
- Project Code
- 09MB1900, Controller SoC for Human Body Communications, Kang Sung Weon
- Abstract
- A frequency selective modulation apparatus and method using re-spreading codes are disclosed. The frequency selective modulation apparatus includes: a serial-to-parallel converter receiving transmission data and performing serial-to-parallel conversion on the transmission data at a pre-set ratio; one or more sub-frequency selective spreaders selecting one spreading code by using data bits received from the serial-to-parallel converter; a majority value selection unit selecting a majority value from one or more spreading codes which have been selected by each of the one or more of the sub-frequency selective spreaders; and a first XOR logic circuit XORing an output of the majority value selection unit and a re-spreading code Wn to re-spread a frequency selective baseband to a frequency selective passband.
- KSP Keywords
- Frequency selective, Parallel converter, Serial-to-parallel conversion, Serial-to-parallel converter, XOR logic, logic circuit, pre-set, spreading code