On the heels of a recent settlement of trade dispute with a Chinese firm, Apple Inc faced another lawsuit in China as a Taiwanese citizen claimed that the US giant's video calling technology Face Time has infringed on a patent involving its own personal assistant software.

The Tawinese man, who named Lee, claimed to hold a patent on “voice network personal digital assistant” technology, National Business Daily reported.

At the moment, Lee did not disclosed the amount of compensation that he is seeking from Apple, but demanding the california-based company to stop violation. The first hearing will be held next month.

Accoridng to the representative lawyer of Lee:

Lee is a technian of a Taiwanese tech company, he needed to travel aboard to various cities for work, therefore he always made international call to his company, parents and friends. Due to this reason, Lee was inspired and came up with an idea of implementing internet call feature on phones. Subsequently, he applied a patent for this idea in 2003.

At that time, the patent was belonged to the company that Lee was working for. However, the company has transfered the patent under his name in 2012. Therefore, the patent is entirely owned by Lee now.

A senior attorney told the paper than the court will support Lee’s claim if Lee’s evidence is proved true and Apple does not have relevant patent; and this will affect production and sales of relevant products.