Patent ID: 9537995
Date: 2017-01-03
CPC Classifications: G06F,H04M

Claim:
1. An accessory device, wherein the accessory device is adapted for attaching to a handheld device, and the accessory device comprises: a user input; a coupling element configured to form a coupling with a first input of the handheld device, wherein the first input of the handheld device is at least one of a proximity sensor, a camera, an ambient light sensor, a microphone, an accelerometer, a magnetometer or one or more input keys; and wherein the user input and coupling element of the accessory device are collectively configured to convey a predetermined signal from the accessory device to the first input of the handheld device, wherein conveying of the predetermined signal is in response to a first user action and occurs independently of any data connection between the accessory device and the handheld device.