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Bio-inspired associative memory cell in CMOS

Başlık çevirisi mevcut değil.

  1. Tez No: 403140
  2. Yazar: MEHMET ŞİRİN ÖZDAŞ
  3. Danışmanlar: Dr. TIMOTHY G. CONSTANDINOU, Dr. ALEXANDRU SERB
  4. Tez Türü: Yüksek Lisans
  5. Konular: Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering
  6. Anahtar Kelimeler: Belirtilmemiş.
  7. Yıl: 2011
  8. Dil: İngilizce
  9. Üniversite: Imperial College London
  10. Enstitü: Yurtdışı Enstitü
  11. Ana Bilim Dalı: Belirtilmemiş.
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: 72

Özet

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Özet (Çeviri)

Due to the fact that biological systems are perfectly designed, the bio-mimicry (solving problems by inspiring from nature) has been an attractive method since long ago. Particularly in this century the scientists and engineers started to focus on this method to solve certain problems and some systems have already been designed by certain companies such as Qualcomm. As the Cerebellum is one of the most wonderful architectures in the mammalian brain, which is thought to be the learning and computation centre of the brain, with the features it has , it is able to learn, recognize distorted patterns and provides precision in the movement. The aim of this project is mainly to investigate Cerebellum and design the core part of it which is responsible for such properties. For the reasons above, in this project Cerebellum and other relevant systems has been examined and a simplified model of Cerebellum has been proposed based on certain assumptions. After a number of Matlab simulations has been performed, it was observed that modelled system, Purkinje-Mossy-Climbing signal processing unit, is working similar to the Cerebellum in which the Purkinje cell is behaving as an associative-learning memory cell. After this, a transistor level design has been extracted and implemented successfully in CMOS H18 technology. The design approach is mixed-signal in which an analogue memory is being used. However it was observed that analogue memory is challenging due to the leakage currents and power consumption problems.

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