According to foreign media, Sentons has started marketing technology through the start of a chip industry veteran, whose purpose is to do it with gadget buttons, and is working with two smartphone manufacturers, according to the Reuters report.

The report goes that Sentons, led by engineer Jess Lee, who sold the previous company to Apple, announced an ultrasonic sensor system that uses ultrasonic waves to detect various materials (such as smart Touch, press and slide on the metal edge around the phone. Taiwan's Asustek and its partner Tencent Holdings have used the technology in a phone released in China this summer.

According to the report, Sentons' technology revolves around a custom chip that emits sound waves and contains processors and algorithms for understanding various gestures.

In ASUS phones, the sensor allows the player to hold the phone horizontally and use the index finger to tap the "air trigger" along the top edge of the virtual machine as a virtual button, while the thumb taps the screen.

Quoting Lee in an interview with Reuters: "The touch screen is great, but (the phone manufacturer) hasn't figured out how to increase the interaction between the two parties."

"With thinner and thinner form factors, even all glass or really very thin fashionable metal edges, there is no room for buttons."