Patent · US Active

Interface circuits and communication system for coupling a host device to an accessory device and method for communication between such devices

US10218410B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

AMS AG · AT

Inventors

Horst Gether · Straden, AT
Helmut Theiler · Lieboch, AT

Key dates

Filing date	Aug 21, 2015
Grant date	Feb 26, 2019
Priority date	—
Expiry date	Aug 21, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04M1/72409
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A host interface circuit operates in a power mode when connected to an accessory device compatible with a power supply via a first line of a data cable. During power mode, the host interface circuit couples a power regulator to the first line. The host interface circuit operates in a legacy mode when connected to an accessory device not compatible with such a power supply and couples the legacy terminal to the first line during legacy mode. An accessory interface circuit configured to operate in a power mode when connected to a host device capable of a power supply via a first line couples a power input of an active device to the first line and a data input of the active device to a second line during power mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.