Tag Archives: demodulation

System and method for correcting quadrature demodulation error of radar

Application Number  00129589 Application Date  2000.10.08 Publication Number  1346986 Publication Date  2002.05.01 Priority Information     International Classification  G01S7/40   Applicant(s) Name  Inst of Electronics, Chinese Academy of Sciences   Address     Inventor(s) Name  Wang Yiding   Patent Agency Code  11021 Patent Agent  rong zhimin AbstractA system and method for correcting the quadrature demodulation… Read More »

Orthogonal frequency-division multiplex demodulation device, and demodulation method

Application Number: 00119254Application Date: 2000.06.22Publication Number: 1278127Publication Date: 2000.12.27Priority Information: 1999/6/22 JP 174984/1999International: H04J11/00;H04L27/22Applicant(s) Name: Matsushita Electric Industrial Co., Ltd.Address: Inventor(s) Name: Shirakata Kyoso;Kimura Tomohiro;Tanaka KoichiroPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract An object of the present invention is to provide an apparatus for OFDM demodulation establishing symbol synchronization in such a manner as to… Read More »

General modem and its modulation and demodulation method in transceiver

Application Number: 00119766Application Date: 2000.08.23Publication Number: 1325214Publication Date: 2001.12.05Priority Information: International: H04L27/10;H04L27/18Applicant(s) Name: Zhongxing Communication Co., Ltd., ShenzhenAddress: Inventor(s) Name: Wang Yan;Dong Hui;Zhu XiaohongPatent Agency Code: 00000Patent Agent: Abstract The general-purpose modem equipment in transceiver comprises general-purpose modulation module, general-purpose demodulation module, upper variable frequency conversino module, lower variable frequency conversion module and clock and… 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 »

Signal modulation method, signal modulation device, signal demodulation method and signal demodulation device

Application Number: 00121719Application Date: 1995.07.07Publication Number: 1312555Publication Date: 2001.09.12Priority Information: 1994/7/8 JP 157175/94International: G11B20/10;H03M7/00Applicant(s) Name: Sony Corp.Address: Inventor(s) Name: Okazaki Toru;Yoshimura ToshijiPatent Agency Code: 72001Patent Agent: ye kaidongAbstract In the present invention, a partly duplexed conversion table is used as a conversion table for converting an M-bit based data string directly into an N-bit based… 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 »

Vertical phase demodulation circuit

Application Number: 00104814Application Date: 2000.03.27Publication Number: 1269670Publication Date: 2000.10.11Priority Information: 1999/3/25 JP 81787/99International: H04N7/015Applicant(s) Name: Sanyo Denki Co., Ltd.Address: Inventor(s) Name: Yoshikawa IchiakiPatent Agency Code: 72001Patent Agent: jiang fuhouAbstract In the vertical cross phase demodulation circuit, a simple circuit is used to eliminate DC offset. When a clock reproduction circuit 6 is locked, a phase… Read More »