Po-Tsang Chen

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The paper presents the design and realization of a frequency synthesizer for 60-GHz wireless communication systems. Implemented with 90nm CMOS technology, the phase-locked loop based frequency synthesizer includes a high-frequency voltage-controlled oscillator (VCO), a high-speed divider, a programmable divider, a charge pump, and a frequency tripler. The(More)
Flash storage has been a standard component in Android devices. Recent research has reported that application data management in Android involves frequent fsync() operations. The current fsync() implementations, including those of ext4 and F2FS, have several common drawbacks. Specifically, ext4 commits a transaction every time to sync a file, whereas F2FS(More)
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