Invention Grant
- Patent Title: Accessory management and data communication using audio port
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Application No.: US14507605Application Date: 2014-10-06
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Publication No.: US10051395B2Publication Date: 2018-08-14
- Inventor: Sang Hoon Kim , Kenneth Jay Helfrich
- Applicant: Maxim Integrated Products, Inc.
- Applicant Address: US CA San Jose
- Assignee: Maxim Integrated Products, Inc.
- Current Assignee: Maxim Integrated Products, Inc.
- Current Assignee Address: US CA San Jose
- Agency: North Weber & Baugh LLP
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F13/12 ; H04R29/00 ; H04M1/00
Abstract:
A method for accessory management and data communication between a portable electronic device and an accessory via audio port is disclosed. The method involves using a microphone line of the accessory in different communication modes including a MIC data mode and a power mode. In the MIC data mode, the MIC line disconnects from a microphone load to operate on a voltage above a predetermined threshold whenever the accessory needs to communicate with the host electronic device. In the MIC power mode, the MIC line connects with the microphone load for the normal operation of the microphone.
Public/Granted literature
- US20150261641A1 ACCESSORY MANAGEMENT AND DATA COMMUNICATION USING AUDIO PORT Public/Granted day:2015-09-17
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