Ultrasound 3-D sensing tech for improved gesture recognition - CES 2016

Dave Horsley from Sharp Microsystems introduces a novel ultrasound technology using micro machined ultrasonic transducers. He explains that ultrasound consists of high-frequency pressure waves, which are inaudible to humans. The technology uses multiple transducers to emit pulses and measure echoes, similar to GPS triangulation, allowing for precise range measurements. This innovation adds a third dimension to device interaction, enabling users to interact with devices without physical contact.

What is the main innovation discussed by Dave Horsley from Sharp Microsystems?

• A low-power laser sensor

• A high-frequency radio wave transmitter

• A tiny, ultra-low power ultrasonic sensor

• A new type of GPS system

How does ultrasound differ from the sound we hear?

• It is a pressure wave at a frequency inaudible to humans

• It is a sound wave at a lower frequency than we can hear

• It is a type of electromagnetic wave

• It is a type of light wave

What technique is used to measure range with ultrasound sensors?

• Pulse echo measurement

• Frequency modulation

• Phase shift measurement

• Amplitude modulation

How is the concept of triangulation used in ultrasound technology?

• By using light waves to calculate distance

• By using sound waves to measure speed

• By using multiple sensors to determine position

• By using a single sensor to measure distance

In what way can ultrasound technology be complementary?

• By eliminating the need for sound waves

• By reducing the need for GPS

• By adding a third dimension for interaction before touching a device

• By replacing all existing technologies