CN100477653C - 二进制移频键控解调器及其频率电压转换电路 - Google Patents
二进制移频键控解调器及其频率电压转换电路 Download PDFInfo
- Publication number
- CN100477653C CN100477653C CNB2004100172979A CN200410017297A CN100477653C CN 100477653 C CN100477653 C CN 100477653C CN B2004100172979 A CNB2004100172979 A CN B2004100172979A CN 200410017297 A CN200410017297 A CN 200410017297A CN 100477653 C CN100477653 C CN 100477653C
- Authority
- CN
- China
- Prior art keywords
- switch pipe
- nmos switch
- signal
- capacitor
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 56
- 239000003990 capacitor Substances 0.000 claims description 63
- 230000000694 effects Effects 0.000 claims description 5
- 101100537098 Mus musculus Alyref gene Proteins 0.000 claims description 4
- 101150095908 apex1 gene Proteins 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001427 coherent effect Effects 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100172979A CN100477653C (zh) | 2004-03-30 | 2004-03-30 | 二进制移频键控解调器及其频率电压转换电路 |
US10/850,754 US6989710B2 (en) | 2004-03-30 | 2004-05-20 | Binary frequency-shift keying demodulator and frequency-to-voltage converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100172979A CN100477653C (zh) | 2004-03-30 | 2004-03-30 | 二进制移频键控解调器及其频率电压转换电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1677967A CN1677967A (zh) | 2005-10-05 |
CN100477653C true CN100477653C (zh) | 2009-04-08 |
Family
ID=35050269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100172979A Expired - Lifetime CN100477653C (zh) | 2004-03-30 | 2004-03-30 | 二进制移频键控解调器及其频率电压转换电路 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6989710B2 (zh) |
CN (1) | CN100477653C (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7408461B2 (en) * | 2005-01-11 | 2008-08-05 | Controlled Capture Systems, Llc | Metal detection system and method |
US7839011B2 (en) * | 2007-02-09 | 2010-11-23 | Siemens Medical Solutions Usa, Inc. | Method and apparatus for signal transmission with isolation in medical devices |
CN101329870B (zh) * | 2008-08-01 | 2012-12-12 | 威盛电子股份有限公司 | 音频解码器以及相关的电子装置以及抑制高频调制噪声的方法 |
CN102193590B (zh) * | 2010-03-12 | 2013-04-03 | 宏碁股份有限公司 | 可携式计算机及其滤噪声方法 |
US8810284B2 (en) * | 2012-12-11 | 2014-08-19 | Sandisk Technologies Inc. | Voltage and temperature compensated frequency converter |
CN103634253B (zh) * | 2013-11-06 | 2015-08-05 | 斯凯瑞利(北京)科技有限公司 | Rfid阅读器及其ask调制方法和电路 |
CN103716272B (zh) * | 2013-12-31 | 2017-06-16 | 杭州万高通信技术有限公司 | 一种bfsk调制电路、方法以及超再生接收机 |
US9401702B2 (en) * | 2014-04-11 | 2016-07-26 | Texas Instruments Incorporated | Binary frequency shift keying with data modulated in digital domain and carrier generated from intermediate frequency |
CN104158535B (zh) * | 2014-07-23 | 2017-06-16 | 三星半导体(中国)研究开发有限公司 | 频率电压转换器 |
CN105811966B (zh) * | 2016-02-26 | 2019-06-04 | 上海华虹宏力半导体制造有限公司 | 频率转电压电路 |
CN116094526A (zh) * | 2022-12-31 | 2023-05-09 | 成都电科星拓科技有限公司 | 一种将脉冲频率转换为电压的方法及装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5022055A (en) * | 1988-04-28 | 1991-06-04 | Amaf Industries, Inc. | Trunk dialing converter |
JP2002016651A (ja) * | 2000-06-28 | 2002-01-18 | General Res Of Electronics Inc | Fsk信号復調用積分−放電回路 |
-
2004
- 2004-03-30 CN CNB2004100172979A patent/CN100477653C/zh not_active Expired - Lifetime
- 2004-05-20 US US10/850,754 patent/US6989710B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1677967A (zh) | 2005-10-05 |
US20050225383A1 (en) | 2005-10-13 |
US6989710B2 (en) | 2006-01-24 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090320 Address after: Shanghai city Zuchongzhi road Pudong Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Address before: Shanghai City Songtao road in Zhangjiang High Tech Park of Pudong No. 563 block A Patentee before: Dingxin communication (Shanghai) Co.,Ltd. |
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ASS | Succession or assignment of patent right |
Owner name: ZHANXUN COMMUNICATION ( SHANGHAI ) CO., LTD. Free format text: FORMER OWNER: COMLENT (SHANGHAI) CO., LTD. Effective date: 20090320 |
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TR01 | Transfer of patent right |
Effective date of registration: 20200529 Address after: 8-07, building 6, ronghuiyuan, airport economic core area, Shunyi District, Beijing Patentee after: Xin Xin finance leasing (Beijing) Co.,Ltd. Address before: 201203 Shanghai city Zuchongzhi road Pudong Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Patentee before: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201125 Address after: Room 2502, COFCO Plaza, 990 Nanma Road, Nankai District, Tianjin Patentee after: Xin Xin finance leasing (Tianjin) Co.,Ltd. Address before: 8-07, building 6, ronghuiyuan, airport economic core area, Shunyi District, Beijing Patentee before: Xin Xin finance leasing (Beijing) Co.,Ltd. |
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EE01 | Entry into force of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20051005 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xin Xin finance leasing (Tianjin) Co.,Ltd. Contract record no.: X2021110000055 Denomination of invention: Binary frequency shift keying demodulator and its frequency voltage conversion circuit Granted publication date: 20090408 License type: Exclusive License Record date: 20211227 |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230713 Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Address before: Room 2502, COFCO Plaza, 990 Nanma Road, Nankai District, Tianjin 300100 Patentee before: Xin Xin finance leasing (Tianjin) Co.,Ltd. |
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CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20090408 |