Title:
エージングおよび温度の自動補償を有する基準オシレータ
Document Type and Number:
Japanese Patent JP2004531958
Kind Code:
A
Abstract:
A receiver uses an adaptive algorithm to tune a low-cost crystal oscillator according to a temperature compensation profile so as to produce a precision master reference frequency despite temperature, initial tolerance, and aging effects. An automatic frequency control system also tunes the crystal oscillator. The adaptive algorithm adjusts the temperature compensation profile for the crystal oscillator according to the adjustments made by the automatic frequency control should a received signal's quality factor exceed that associated with the temperature compensation profile.
Inventors:
Forrester, Timothy
Application Number:
JP2002590507A
Publication Date:
October 14, 2004
Filing Date:
May 14, 2002
Export Citation:
Assignee:
Kyocera Wireless Corporation
International Classes:
H03J1/00; H03J7/04; H03L1/02; H04B1/16; H04B1/26; (IPC1-7): H04B1/26; H03L1/02; H04B1/16
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita