Abstract: Dual-tone Multi-frequency (DTMF) Signals are used in touch-tone telephones as well as many other areas. Since analog devices are rapidly changing with digital devices, digital DTMF decoders become important. In this survey a brief review of some DTMF detector implementations is given. The Aim of this paper is to implement a DTMF detector, which is ITU complaint, on a fixed point low cost DSP. This detector should be able to detect DTMF tones in multiple-channels with as much as possible channels. Microcontrollers, as the name suggests, are small controllers. They are also used in automobiles, washing machines, microwave ovens, toys .etc. where automation is needed.

• Publication Date: 09-Mar-2014
• DOI: 10.15224/978-1-63248-000-2-53
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Abstract: The processor architecture designers face major challenges to improve the processor’s performance. To measure the performance of the processor there are many parameter like performance of cache, TLB, IO operations, bus speed etc. different companies launch series of processors with same base configuration and a little change of variations base on cache size, cache levels, share and separate cache and many other parameters like that. There are many simulators available to measure processor's performance theoretically with several parameters. We simulate some models of Intel Pentium 4 and UltraSPARC II processors and analyze the performance of the processors regarding cache and TLB.

• Publication Date: 09-Mar-2014
• DOI: 10.15224/978-1-63248-000-2-54
• Views: 0
• Downloads: 0