公开(公告)号：KR1020030039842A

公开(公告)日：2003-05-22

申请号：KR1020010071193

申请日：2001-11-15

Applicant: 정정화

Inventor： 정정화 ,  윤상훈 ,  김태호

IPC: H04B14/06

CPC classification number: H04L23/02

Abstract: PURPOSE: A design of a new CCK(Complimentary Code Keying) structure by using repetitive differential modulation and phase detection is provided to produce a CCK modulator-demodulator in which the size of hardware is reduced, so as to effectively use the produced CCK modulator-demodulator in a communication circuit, especially in a wireless LAN(Local Area Network). CONSTITUTION: A CCK modulator(300) includes a serial-to-parallel converter(301), differential modulators(302), complementary code generator(303) and a parallel-to-serial converter(304). The serial-to-parallel converter(301) collects received inputs by 8 bits, to deliver 8 bits by one clock at a time. The each differential modulator(302) produces 8 complementary codes with 8 input data. The complementary code generator(303) converts the codes produced in the differential modulators(302) into transmittable types. And the parallel-to-serial converter(304) transmits the generated complementary codes to a receiving party by using DQPSK(Differential Quadrature Phase Shift Keying). And a CCK demodulator includes a serial-to-parallel converter, phase detectors, a phase-to-information converter and a parallel-to-serial converter.

Abstract translation: 目的：提供使用重复差分调制和相位检测的新型CCK（免费代码键控）结构的设计，以产生其中硬件尺寸减小的CCK​​调制器解调器，从而有效地使用生产的CCK调制器 - 通信电路中的解调器，特别是在无线LAN（局域网）中。 构成：CCK调制器（300）包括串并转换器（301），差分调制器（302），互补码发生器（303）和并 - 串转换器（304）。 串行到并行转换器（301）将接收的输入以8位的速度收集，以一次一个时钟递送8位。 每个差分调制器（302）产生8个具有8个输入数据的互补码。 互补代码生成器（303）将在差分调制器（302）中产生的代码转换为可传输类型。 并行串行转换器（304）通过使用DQPSK（差分正交相移键控）将产生的互补代码发送到接收方。 并且CCK解调器包括串并转换器，相位检测器，相到信息转换器和并行到串行转换器。