System clock supplying device and frequency shift determining method of master oscillator
作者： Narimasa Okada , Hiroyoshi Yoda
DOI:
关键词:
摘要: A system clock supplying device having a duplex structure formed by an own and another configured to generate based on output of master oscillator in device, the includes frequency shift measuring determining part measure between reference for synchronization supplied from outside send result system; abnormality portion determine whether is generated system, other or clock, basis obtained system.
lens.org 参考文章(8)
Emrys J. Williams, Leo Yuan, Drew G. Doblar, Computer system including multiple clock sources and failover switching ,(1999)
Akira Yamagiwa, Soichi Takaya, Masao Inoue, Kenichi Kurosawa, Kenji Kashiwagi, Shinichiro Yamaguchi, Yoshihiro Miyazaki, Sako Ishikawa, Koji Matsuda, Uninterruptible clock supply apparatus for fault tolerant computer system ,(1996)
Hideki Fujitsu Limited Ishida, Kazuaki Fujitsu Limited Oishi, Frequency measurement circuit ,(2000)
Steve Driediger, Dion Pike, Periodic electrical signal frequency monitoring systems and methods ,(2004)
Mark A. Horowitz, Kun-Yung K. Chang, Fault-tolerant clock generator ,(2003)
Paul S. Dara, Telephone communication system having an enhanced timing circuit ,(1992)
Thomas C. McDermott, Redundant clock system utilizing nonsynchronous oscillators ,(1979)
Kato Akira, DEVICE AND METHOD FOR GENERATING FREQUENCY REFERENCE SIGNAL ,(2006)