Pulse or digital communications – Synchronizers
Reexamination Certificate
2011-06-21
2011-06-21
Flores, Leon (Department: 2611)
Pulse or digital communications
Synchronizers
C375S373000, C375S376000, C327S141000, C327S147000, C327S156000, C455S260000
Reexamination Certificate
active
07965800
ABSTRACT:
A clock recovery apparatus for generating a recovery clock from received data may include, but is not limited to, first and second oscillators. The first oscillator generates a first signal having a first frequency. The first signal synchronizes with the received data when the received data has a first level. The second oscillator is connected in series to the first oscillator. The second oscillator generates a second signal as the recovery clock when the first signal has a second level. The second signal has a second frequency. The second signal synchronizes with the first signal.
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Yusuke Ota et al., “High-Speed, Burst-Mode, Packet-Capable Optical Receiver and Instantaneous Clock Recovery for Optical Bus Operation”, Journal of Lightwave Technology, Feb. 2004, pp. 325-331, vol. 12, No. 2.
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Akasaka Yasukazu
Ikezawa Katsuya
Kobayashi Toshi-aki
Kodaka Hirotoshi
Sugawara Hiroshi
Flores Leon
Sughrue & Mion, PLLC
Yokogawa Electric Corporation
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