thumb 230 1 Japanese Cell Phone Sends Vibrations Directly to Eardrums

A technology has been developed by ROHM, an electronics supplier in Japan, allowing handset users to listen by touching the phone's corner to their ears.

A technology has been developed by ROHM, an electronics supplier in Japan, allowing handset users to listen by touching the phone's corner to their ears.

1 Japanese Cell Phone Sends Vibrations Directly to Eardrums

The technology is based on a phenomenon known as 'cartilage conduction', discovered by Hiroshi Hosoi of Nara Medical University in Japan. Hosoi found that by attaching a vibrating source to ear cartilage, vibrations travel to the inner ear, where they are transmitted to the eardrum. Thus, the vibrations can actually be heard without sound waves passing through the air.

ROHM's application of cartilage conduction involves a vibrator, located in the corner of a cell phone handset. The cell phone's user will touch the corner of the device to his 'tragus' (the protrusion in front of the earlobe), and sound signals will be sent in the form of vibrations to his eardrums.

The idea of this technology is to provide a way for people to communicate in loud and busy environments. Since the tragus is located directly above the ear canal, it can be simultaneously depressed while talking in order to block out all sound excluding the phone conversation.

ROHM will be previewing the technology between May 10 and 12 this year, at the '113th Annual Meeting of ORL Society of Japan' in Japan's Niigata Prefecture. Hosoi will be giving a lecture on the technology at the same event.

Japan is known for its variety of cell phones, many eccentric or impressively futuristic. Thus, it is no wonder that ROHM has developed, rather than simply resorting to a noise cancelling Bluetooth headset.

Source:Tech-On!