It is thought the dock, if it is ever made, could use voice assistant Siri to be activated and would be used on the company's popular iPhone models.
They wrote in their patent application: "A dock for a portable electronic device including a housing, a connector extending from the housing to connect the portable electronic device to the dock, a microphone integrated within the housing, and a processor.
"The processor is operatively coupled to receive audio input from the microphone, and in response to the audio input, transmit a message to the portable electronic device via the connector to activate a voice recognition mode of the portable electronic device."
It comes after Apple's CEO Tim Cook previously teased the company are working on "autonomous systems" but refused to be drawn on exactly what exactly that would entail.
He said: "What we're focusing on, what we've talked about focusing on publicly, we're focusing on autonomous systems. And clearly one purpose of autonomous systems is self-driving cars, there are others. And we sort of see it as the mother of all AI projects. It's probably one of the most difficult AI projects, actually, to work on.
"And so autonomy is something that's incredibly exciting for us, and ... we'll see where it takes us. We're not really saying from a product point of view what we will do, but we are being straightforward that it's a core technology that we view is very important."