Lower frequency converter and demodulator adopting three-port wire connector

Application Number: 00117926Application Date: 2000.05.29Publication Number: 1275833Publication Date: 2000.12.06Priority Information: 1999/5/27 EP 99110296.3International: H03D9/04;H04L27/22Applicant(s) Name: Sony International (Europe) Co., Ltd.Address: Inventor(s) Name: V.Brancovec;D. Krupecevec;Abe MasamiPatent Agency Code: 72001Patent Agent: wang yueAbstract A down converter for RF signals comprises one three port junction (7) having one input port six for modulated digital RF signals and two Read more

Demodulation method and demodulator for code division multiple access

Application Number: 00120215Application Date: 2000.07.13Publication Number: 1280428Publication Date: 2001.01.17Priority Information: 1999/7/13 KR 28205/1999International: H04B1/16;H04J13/00Applicant(s) Name: Samsung Electronics Co., Ltd.Address: Inventor(s) Name: Kim Ung-Sun;Kim Chi-YongPatent Agency Code: 11038Patent Agent: luo echuanAbstract The invention provides a code division multiple access (CDMA) demodulating method and demodulator the method including the steps of: (a) sequentially-storing all input data, which Read more

Quadrature demodulator, quadrature demodulating method and recording medium thereof

Application Number: 00107771Application Date: 2000.05.23Publication Number: 1275012Publication Date: 2000.11.29Priority Information: 2000/3/14 JP 069703/2000; 2000/4/14 JP 113409/2000; 1999/5/24 JP 143512/1999International: H04L27/00;H03D1/00Applicant(s) Name: Advantest Corp.Address: Inventor(s) Name: Kato TakashiPatent Agency Code: 11234Patent Agent: wan huatangAbstract A quadrature demodulator capable of calibrating an I (Q) signal conversion section without stopping the receiving operation performed by the quadrature demodulator. Read more

Demodulator circuit and demodulation method of radio receiving equipment

Application Number: 00107008Application Date: 2000.04.24Publication Number: 1272035Publication Date: 2000.11.01Priority Information: 1999/4/22 JP 115122/99International: H04Q7/14Applicant(s) Name: Matsushita Electric Industrial Co., Ltd.Address: Inventor(s) Name: Matsumoto Hidenori;Hashigaya MitsuhikoPatent Agency Code: 11105Patent Agent: ma yingAbstract A demodulating circuit 1 contains an electric field level detector 2, comparators 3a to 3n, a detector 5, both a low-pass filter 6 and Read more

Demodulator, modulator circuit and demodulating, modulating method

Application Number: 00105400Application Date: 2000.02.24Publication Number: 1265543Publication Date: 2000.09.06Priority Information: 1999/2/24 JP 45636/99International: H04L27/22Applicant(s) Name: NEC Corp.Address: Inventor(s) Name: Tamura KoichiPatent Agency Code: 72001Patent Agent: fu kangAbstract A demodulation circuit and a demodulation method can optimize sampling timing with achieving reduction of power consumption. A preliminarily known signal is inserted in the digital transmission signal Read more

Phase sensitive demodulator

Application Number: 00103243Application Date: 2000.03.20Publication Number: 1298165Publication Date: 2001.06.06Priority Information: International: G08C13/02Applicant(s) Name: Inst. of Atmospheric Physics, Academia SinicaAddress: Inventor(s) Name: Sun BaolaiPatent Agency Code: 00000Patent Agent: Abstract The novel phase sensitive demodulator consists of operation amplifier and analogue switch. Compared with switch demodulator comprising transistor and transformer, or product demodulator constituted by analogue multiplier, Read more