Title:
GPS機器用の非常に精密で温度に依存しない基準周波数を生成するためのシステム及び方法
Document Type and Number:
Japanese Patent JP4713556
Kind Code:
B2
Abstract:
Device and method for temperature compensation in a clock oscillator using quartz crystals, which integrates dual crystal oscillators. The minimal power consumption is achieved through an efficient use of a processor in charge of the synchronization of the two oscillators. The invention is particularly adapted for the provision of a precise reference clock in portable radiolocalization devices.
Inventors:
Andrew Tozer
Application Number:
JP2007229601A
Publication Date:
June 29, 2011
Filing Date:
September 05, 2007
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H03B5/32; H03L1/02; H03L7/06
Domestic Patent References:
| JP58114506A | ||||
| JP63093205A |
Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen
Akashi Masatake
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen
Akashi Masatake