CN101447800A - 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
- Publication number
- CN101447800A CN101447800A CNA2007101710968A CN200710171096A CN101447800A CN 101447800 A CN101447800 A CN 101447800A CN A2007101710968 A CNA2007101710968 A CN A2007101710968A CN 200710171096 A CN200710171096 A CN 200710171096A CN 101447800 A CN101447800 A CN 101447800A
- Authority
- CN
- China
- Prior art keywords
- frequency
- value
- mobile phone
- aggregate
- oscillating circuit
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000013078 crystal Substances 0.000 claims abstract description 69
- 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
Images
Landscapes
- 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 (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101447800A true CN101447800A (zh) | 2009-06-03 |
CN101447800B CN101447800B (zh) | 2013-01-09 |
Family
ID=40743239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007101710968A Active 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 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101447800B (zh) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001177436A (ja) * | 1999-12-15 | 2001-06-29 | Nec Corp | 移動通信システムにおけるafc制御装置及びその方法並びにそれを使用した移動通信機 |
EP1271792A1 (en) * | 2001-06-25 | 2003-01-02 | Motorola, Inc. | Low leakage local oscillator system |
US6856791B2 (en) * | 2002-03-14 | 2005-02-15 | Ericsson Inc. | Direct automatic frequency control method and apparatus |
KR100717134B1 (ko) * | 2005-07-26 | 2007-05-10 | 인티그런트 테크놀로지즈(주) | 자동 주파수 제어 루프 회로 |
-
2007
- 2007-11-27 CN CN2007101710968A patent/CN101447800B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN101447800B (zh) | 2013-01-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20100052795A1 (en) | Semiconductor integrated circuit | |
US6823292B2 (en) | Tuneable filter | |
EP1779535B1 (en) | Single chip lna and vco having similar resonant circuit topology and using same calibration signal to compensate for process variations | |
CN105322960B (zh) | 使用自激振荡器的时钟发生器及其方法 | |
US7742785B2 (en) | Reference signal generation for multiple communication systems | |
CN101917186B (zh) | 用于频率合成器的校准技术 | |
US7058372B1 (en) | Method and apparatus for automatic tuning of a resonant loop antenna | |
CN1819447B (zh) | 用在通信系统中的对于晶体的频率偏移校正技术 | |
US20040227578A1 (en) | Acoustic resonance-based frequency synthesizer using at least one bulk acoustic wave (BAW) or thin film bulk acoustic wave (FBAR) device | |
EP2140549B1 (en) | Oscillator signal stabilization | |
US7382199B2 (en) | Methods for auto-calibration and fast tuning of voltage controlled oscillators in phase-lock loops | |
CN109039287B (zh) | 半导体装置及其控制方法 | |
US10951190B2 (en) | On-chip harmonic filtering for radio frequency (RF) communications | |
EP1458111B1 (en) | Multi-band frequency synthesizer | |
CN101753287A (zh) | 全数字全集成的频率综合发生器及方法 | |
CN103888136A (zh) | 广播系统芯片的无晶体时钟产生系统 | |
WO2011152881A2 (en) | Dynamic voltage-controlled oscillator calibration and selection | |
US20090128242A1 (en) | Frequency generation in a wireless communication unit | |
CN113933791B (zh) | 无晶振fmcw雷达收发机装置及频率校准方法 | |
CN101447800B (zh) | 提高手机输出频率精度的方法和装置及其手机 | |
CN104467817B (zh) | 一种应用于自动频率控制系统(afc)的环路微调算法 | |
US7098747B2 (en) | Precision tunable voltage controlled oscillation and applications thereof | |
US9024692B2 (en) | Voltage controlled oscillator band-select fast searching using predictive searching | |
CN104270162A (zh) | 提高GSM接收系统对26MHz谐波抗干扰能力的方法 | |
CN103841069B (zh) | 用于远程通信的电子装置、接收机及相关控制方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
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: 20170203 Address after: Room 32, building 3205F, No. 707, Zhang Yang Road, free trade zone,, China (Shanghai) Patentee after: Xin Xin Finance Leasing 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. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20170707 Address after: Room 2062, Wenstin administration apartment, No. 9 Financial Street B, Beijing, Xicheng District Patentee after: Xin Xin finance leasing (Beijing) Co.,Ltd. Address before: Room 32, building 707, Zhang Yang Road, China (Shanghai) free trade zone, 3205F Patentee before: Xin Xin Finance Leasing Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
EE01 | Entry into force of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
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 |
|
TR01 | Transfer of patent right |
Effective date of registration: 20200306 Address after: 201203 Zuchongzhi Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai 2288 Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Address before: 100033 room 2062, Wenstin administrative apartments, 9 Financial Street B, Xicheng District, Beijing. Patentee before: Xin Xin finance leasing (Beijing) Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200529 Address after: 361012 unit 05, 8 / F, building D, Xiamen international shipping center, No.97 Xiangyu Road, Xiamen area, China (Fujian) free trade zone, Xiamen City, Fujian Province Patentee after: Xinxin Finance Leasing (Xiamen) Co.,Ltd. Address before: 201203 Zuchongzhi Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai 2288 Patentee before: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xin Xin finance leasing (Beijing) Co.,Ltd. Contract record no.: 2018990000163 Date of cancellation: 20210301 |
|
EC01 | Cancellation of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090603 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xinxin Finance Leasing (Xiamen) Co.,Ltd. Contract record no.: X2021110000010 Denomination of invention: Method and device for improving output frequency accuracy of mobile phone and mobile phone Granted publication date: 20130109 License type: Exclusive License Record date: 20210317 |
|
EE01 | Entry into force of recordation of patent licensing contract | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230717 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: 361012 unit 05, 8 / F, building D, Xiamen international shipping center, 97 Xiangyu Road, Xiamen area, China (Fujian) pilot Free Trade Zone, Xiamen City, Fujian Province Patentee before: Xinxin Finance Leasing (Xiamen) Co.,Ltd. |
|
TR01 | Transfer of patent right |