| Presentation | 2013-11-27 A Quantizer Adaptively Predicting both Optimum Clock Frequency and Optimum Supply Voltage for Dynamic Voltage and Frequency Scaling Controlled Multimedia Processor Nobuaki Kobayashi, Tadayoshi Enomoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To make full use of the advantages of dynamic voltage and frequency scaling (DVFS) technique, a quantization decoder (QNT-D) was developed. The QNT-D generates the amount of quantized signal processing (Q) using the amount of the detected signal processing (M). Q is used to produce the optimum clock frequency (opt.f_c) and the optimum supply voltage (opt.V_D) that are proportional to Q. To develop a DVFS controlled motion estimation (ME) processor, we used both the QNT-D and a fast ME algorithm which is called A^2BC (Adaptively Assigned Breaking-off Condition) to predict M for each macro-block (MB). A DVFS controlled ME processor was constructed by using 90-nm CMOS technology. The total power dissipation (P_T) of the processor was significantly reduced and varied from 38.65 to 99.55μW, only 3.275 to 8.412 % of P_T of a conventional ME processor, depending on the test video pictures. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DVFS / H.264/AVC / power dissipation / motion estimation / processor |
| Paper # | CPM2013-113,ICD2013-90 |
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| Conference Information | |
| Committee | CPM |
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| Conference Date | 2013/11/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Component Parts and Materials (CPM) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Quantizer Adaptively Predicting both Optimum Clock Frequency and Optimum Supply Voltage for Dynamic Voltage and Frequency Scaling Controlled Multimedia Processor |
| Sub Title (in English) | |
| Keyword(1) | DVFS |
| Keyword(2) | H.264/AVC |
| Keyword(3) | power dissipation |
| Keyword(4) | motion estimation |
| Keyword(5) | processor |
| 1st Author's Name | Nobuaki Kobayashi |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Chuo University() |
| 2nd Author's Name | Tadayoshi Enomoto |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Chuo University |
| Date | 2013-11-27 |
| Paper # | CPM2013-113,ICD2013-90 |
| Volume (vol) | vol.113 |
| Number (no) | 322 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |