Title:
無線装置のための周波数発生方法およびシステム
Document Type and Number:
Japanese Patent JP4267828
Kind Code:
B2
Abstract:
Methods and systems are provided for frequency generation suitable for use in wireless devices capable of operating at multiple frequencies. Such systems may change the loop gain of an automatic frequency control loop based on the operating frequency of the wireless device. Furthermore, such a frequency dependent loop gain may be carried out by the selection of subroutines with differing loop gains associated with the subroutines. Furthermore, the loop gain may also be temperature compensated based on the temperature of the wireless device and/or the operating frequency of the device.
Inventors:
North Cut, John, W
Dent, Paul, Wilkinson
Sur, Eric, Alan
Jen, Harvey
Dent, Paul, Wilkinson
Sur, Eric, Alan
Jen, Harvey
Application Number:
JP2000584593A
Publication Date:
May 27, 2009
Filing Date:
September 22, 1999
Export Citation:
Assignee:
ERICSSON INC.
International Classes:
H04B1/40; H03J7/04; H03L1/02
Foreign References:
| US4450587 | ||||
| GB2286301B | ||||
| US5535432 | ||||
| US5740525 | ||||
| US5659884 | ||||
| WO1990016113A1 | ||||
| EP0560475B1 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Youhei Kawabata
Kato Takushi
Yasuhiro Sakata
Hayashi Zouzo
Kuniaki Shimizu
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Youhei Kawabata
Kato Takushi
Yasuhiro Sakata
Hayashi Zouzo
Kuniaki Shimizu
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