Title:
発振周波数の制御
Document Type and Number:
Japanese Patent JP2006519508
Kind Code:
A
Abstract:
A control unit supplies a new control value to a frequency source. The value is determined by the frequency source frequency and the reference frequency. The control unit further calculates a rate of change value based at least on the new and a previous control value if there is communication with the reference frequency generator and stores these values in corresponding stores. Another control unit calculates a new control value based on the rate of change value from the rate of change store and the last used control value from the control value store and supplies the new control value to the frequency source if there is no communication with the reference generator.
Inventors:
Lindel Bo
Christianson, Robert
Christianson, Robert
Application Number:
JP2004552669A
Publication Date:
August 24, 2006
Filing Date:
November 20, 2003
Export Citation:
Assignee:
Sony Ericsson Mobile Communications, AB
International Classes:
H04B1/26; H03J1/00; H03J7/02; H03L1/00; H03L1/02; H03L3/00; H03L7/14
Domestic Patent References:
| JPH11271476A | 1999-10-08 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura