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1. (WO2015047519) METHOD AND APPARATUS FOR SENDING A CONTROL SIGNAL TO AN ELECTRONIC DEVICE

Pub. No.:    WO/2015/047519    International Application No.:    PCT/US2014/045755
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Wed Jul 09 01:59:59 CEST 2014
IPC: H04M 1/60
H04M 1/725
H04W 4/10
Applicants: MOTOROLA MOBILITY LLC
Inventors: COKER, Oyeneye O.
FERNANDEZ, Juan Alvira
HULL, Matthew T.
Title: METHOD AND APPARATUS FOR SENDING A CONTROL SIGNAL TO AN ELECTRONIC DEVICE
Abstract:
A method and apparatus for sending a control signal to an electronic device includes an accessory (200) of the electronic device detecting activation of a first switch (204) of the accessory and, responsively, controlling a second switch (206) of the accessory to generate a first control signal that instructs the electronic device to enable a function while the first switch is activated. The accessory sends the first control signal to the electronic device over a microphone line (208) coupled to a microphone (210) of the accessory and configured to be coupled to the electronic device. For a specific embodiment, the method includes the accessory detecting deactivation of the first switch and, responsively, controlling the second switch (206) of the accessory to generate a second control signal to instruct the electronic device to disable the function, and sending the second control signal to the electronic device over the microphone line (208).