CN101447800B - 提高手机输出频率精度的方法和装置及其手机 - Google Patents
提高手机输出频率精度的方法和装置及其手机 Download PDFInfo
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- CN101447800B CN101447800B CN2007101710968A CN200710171096A CN101447800B CN 101447800 B CN101447800 B CN 101447800B CN 2007101710968 A CN2007101710968 A CN 2007101710968A CN 200710171096 A CN200710171096 A CN 200710171096A CN 101447800 B CN101447800 B CN 101447800B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000013078 crystal Substances 0.000 claims abstract description 72
- 238000010586 diagram Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
次数 | 手机频率误差 | 控制字N变化 | AFC变化 |
1 | 3 | 0 | 0 |
2 | 3 | 1 | 0 |
3 | 3 | 2 | 0 |
4 | 3 | 2 | 0 |
5 | 3 | 3 | 0 |
6 | 3 | 3 | 0 |
7 | 3 | 4 | 0 |
8 | 3 | 4 | 0 |
9 | 3 | 5 | 0 |
10 | 3 | 5 | 0 |
11 | 3 | 0 | 0 |
12 | 3 | 0 | 1 |
Claims (7)
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CN2007101710968A CN101447800B (zh) | 2007-11-27 | 2007-11-27 | 提高手机输出频率精度的方法和装置及其手机 |
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CN2007101710968A CN101447800B (zh) | 2007-11-27 | 2007-11-27 | 提高手机输出频率精度的方法和装置及其手机 |
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CN101447800A CN101447800A (zh) | 2009-06-03 |
CN101447800B true CN101447800B (zh) | 2013-01-09 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1305281A (zh) * | 1999-12-15 | 2001-07-25 | 日本电气株式会社 | 移动通信系统中的自动频率控制的控制装置和方法及采用该装置和方法的移动通信设备 |
WO2003001692A2 (en) * | 2001-06-25 | 2003-01-03 | Motorola Inc. | Low leakage local oscillator system |
WO2003079548A1 (en) * | 2002-03-14 | 2003-09-25 | Ericsson Inc. | Direct automatic frequency control method and apparatus |
CN1905372A (zh) * | 2005-07-26 | 2007-01-31 | 因特格瑞特科技有限公司 | 自动频率控制环路 |
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2007
- 2007-11-27 CN CN2007101710968A patent/CN101447800B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1305281A (zh) * | 1999-12-15 | 2001-07-25 | 日本电气株式会社 | 移动通信系统中的自动频率控制的控制装置和方法及采用该装置和方法的移动通信设备 |
WO2003001692A2 (en) * | 2001-06-25 | 2003-01-03 | Motorola Inc. | Low leakage local oscillator system |
WO2003079548A1 (en) * | 2002-03-14 | 2003-09-25 | Ericsson Inc. | Direct automatic frequency control method and apparatus |
CN1905372A (zh) * | 2005-07-26 | 2007-01-31 | 因特格瑞特科技有限公司 | 自动频率控制环路 |
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CN101447800A (zh) | 2009-06-03 |
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Application publication date: 20090603 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xin Xin finance leasing (Beijing) Co.,Ltd. Contract record no.: 2018990000163 Denomination of invention: Method for improving output frequency precision of mobile phone, device and mobile phone thereof Granted publication date: 20130109 License type: Exclusive License Record date: 20180626 |
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