재확산 부호를 이용한 주파수 선택적 변조장치 및 방법
임인기, 박형일, 강성원, 강태욱, 형창희, 김진경, 황정환, 최병건, 김성은, 강태영, 현석봉, 김정범, 김경수, 박경환
- 8599902 (2013.12.03)
09MB1900, 인체통신 컨트롤러 SoC,
- 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 제안 키워드
- Frequency selective, Parallel converter, Serial-to-parallel conversion, Serial-to-parallel converter, XOR logic, logic circuit, pre-set, spreading code