Patent ID: 8837630
Filing Date: 2014-09-16
Classification: H04L

Abstract:
1. A signal transmission circuit of an electronic device, wherein the electronic device is coupled to a signal reception circuit of a host via the signal transmission circuit, the signal transmission circuit comprising: a driving circuit module, configured to provide at least one initialized signal and a detection signal, wherein the at least one initialized signal is output prior to the detection signal; and a signal detection module, coupled to the driving circuit module and coupled to the signal reception circuit via a signal detection terminal, wherein the signal detection module is configured to detect a type of a signal transmission interface of the signal reception circuit, wherein the at least one initialized signal configured to reduce a signal reference level of a reception terminal of the signal reception circuit, and the signal detection module determines the type of the signal transmission interface of the signal reception circuit according to whether the detection signal satisfies a predetermined threshold value at the signal detection terminal.