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Introduction to Real-Time Operating Systems
Objectives ,[object Object],[object Object],[object Object],[object Object]
Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
GPOS and RTOS comparison ,[object Object],[object Object],[object Object]
Scheduling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scheduling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scheduling Preemption process
Scheduling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Kernel Locks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Summary of comparison RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],GPOS ,[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations for RT applications ,[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object]
Conversion of GPOS to RTOS ,[object Object],[object Object],[object Object],[object Object],[object Object]
Real-Time patch effect on kernel ,[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object]
Locking mechanism ,[object Object],[object Object],[object Object]
Priority inheritance  ,[object Object],[object Object],http://book.opensourceproject.org.cn/embedded/oreillyembed/opensource/0596009836/id-i_0596009836_chp_10_sect_4.html
Priority inheritance  ,[object Object],[object Object],[object Object],[object Object]
Priority inversion ,[object Object],[object Object],[object Object],http://www.linuxjournal.com/article/9361?page=0,3
Priority inversion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Priority inversion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Threaded interrupt handler ,[object Object]
Threaded interrupt handler ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object],Building Embedded Linux Systems ISBN-10 = 0596529686, chapter 14,section: Interrupts as threads
Threaded interrupt handler ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object]
Threaded interrupt handler ,[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object]
High resolution timers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Examples of RT application  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation Frequency spectrum for a voice sample
Audio feedback cancellation Frequency spectrum for a voice sample with feedback
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],http://www.alango.com/contents/products/technologies/afr/papers/alango_afc.pdf
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Audio feedback cancellation ,[object Object],[object Object],*Throughput is for 100 second workload Threads Execution Time* (ms) 1 1294.873 2 836.96 3 645.57 4 578.07 5 510.23 6 487.7 7 462.05 8 682.008
Labs ,[object Object],[object Object],[object Object],[object Object]

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Introduction to Real-Time Operating Systems

  • 1. Introduction to Real-Time Operating Systems
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  • 79. Audio feedback cancellation Frequency spectrum for a voice sample
  • 80. Audio feedback cancellation Frequency spectrum for a voice sample with feedback
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