Patty I am unsure of what point u r trying to make because our retina is also capable of responding to pulsed electromagnetics as well as our other sensory pathways Pulsed electromagnetics like infrasound emitting a silent sound of vibration energy can affect other human sensory modalities beyond auditory
So I am unsure what you were trying to express here concerning the cochlea But thanks and take care yourself On Apr 28, 2:56 pm, patty <[email protected]> wrote: > Hi dboots; The cochlea is the only human organism capable of > responding to the pulsed electromagnetics. > Thanks and take care > Patty > > On Apr 24, 9:02 pm, dboots <[email protected]> wrote: > > > > > > > Soumyajit Mandal, who designed the chip to mimic the cochlea, which > > uses fluid mechanics, piezoelectrics and neural signal processing to > > convert sound waves into electrical signals that are sent to the > > brain. > > "The cochlea quickly gets the big picture of what is going on in the > > sound spectrum," said Sarpeshkar. "The more I started to look at the > > ear, the more I realized it's like a super radio with 3,500 parallel > > channels > > >http://www.eetimes.com/news/semi/rss/showArticle.jhtml?articleID=2177... > > > Researchers tout RF chip that mimics the inner ear > > > John Walko > > EE Times Europe > > (06/04/2009 8:13 AM EDT) > > > LONDON — Researchers at the Massachusetts Institute of Technology > > (MIT) have developed a fast, low-power radio chip imitating the human > > inner ear, or cochlea. > > > The radiofrequency chip RF cochlea (in article encrytion squares > > around RF cochlea) > > is capable of picking up mobile phone, GPS, radio, internet and > > Bluetooth signals and, the researchers suggest, could enable wireless > > devices to receive cell phone, wireless Internet, FM radio and other > > signals. > > According to the engineers, the RF cochlea chip is faster than any > > human-designed radio-frequency spectrum analyzer and also operates at > > a lower power. > > The MIT team was led by Rahul Sarpeshkar, associate professor of > > electrical engineering and computer science, and his graduate student, > > Soumyajit Mandal, who designed the chip to mimic the cochlea, which > > uses fluid mechanics, piezoelectrics and neural signal processing to > > convert sound waves into electrical signals that are sent to the > > brain. > > "The cochlea quickly gets the big picture of what is going on in the > > sound spectrum," said Sarpeshkar. "The more I started to look at the > > ear, the more I realized it's like a super radio with 3,500 parallel > > channels." > > The RF cochlea, embedded on a silicon chip measuring 1.5mm by 3mm, > > detects the composition of any electromagnetic waves within its > > perception range. > > It'is said to consume about 100 times less power than that required > > for direct digitization of the entire bandwidth, the researchers say. > > They suggest this makes it desirable as a component of a cognitive > > radio, which could receive a broad range of frequencies. > > Sarpeshkar and his students describe the device in a paper to be > > published in the June issue of the IEEE Journal of Solid-State > > Circuits . They have also filed for a patent to incorporate the RF > > cochlea in a software radio architecture that is designed to > > efficiently process a broad spectrum of signals. > > The paper notes that as sound waves enter the cochlea, they create > > mechanical waves in the cochlear membrane and the fluid of the inner > > ear, activating hair cells (cells that cause electrical signals to be > > sent to the brain). > > The cochlea can perceive a 100-fold range of frequencies -- in humans, > > from 100 to 10,000 Hz. Sarpeshkar used the same design principles in > > the RF cochlea to create a device that can perceive signals at million- > > fold higher frequencies, which includes radio signals for most > > commercial wireless applications. > > This is not the first time Sarpeshkar has drawn on biology for > > inspiration in designing electronic devices. His MIT group previously > > developed an analogue speech-synthesis chip inspired by the human > > vocal tract and an analysis-by-synthesis technique based on the vocal > > tract. The chip's potential for speech recognition and voice > > identification has applications in portable devices and security > > applications. > > He is also working on projects inspired by signal processing in cells, > > and has worked on hybrid analogue-digital signal processors inspired > > by neurons in the human brain. > > "Humans have a long way to go before their architectures will > > successfully compete with those in nature, especially in situations > > where ultra-energy-efficient or ultra-low-power operation are > > paramount," Sarpeshkar said. > > Reference : Mandal, S.; Zhak, S. M.; Sarpeshkar, R. A Bio-Inspired > > Active Radio-Frequency Silicon Cochlea. IEEE Journal of Solid-State > > Circuits, 2009; 44 (6): 1814-1828 DOI: > > > -- > > You received this message because you are subscribed to the Google Groups > > "Hum Sufferers" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group > > athttp://groups.google.com/group/hum-sufferers?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Hum Sufferers" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/hum-sufferers?hl=en.- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To post to this group, send email to [email protected]. 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