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Detection of cable connections for electronic devices

A technology of cable connection and electronic device, which is applied in the detection field of cable connection, and can solve problems such as device damage, input, error, etc.

Active Publication Date: 2015-12-02
UNIVERSAL CONNECTIVITY TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the connected device cannot be identified, the use of pins or connections of the connector for multiple different purposes may cause inappropriate signals to be input to the device, resulting in errors and even damage to the device in some cases. potential harm

Method used

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  • Detection of cable connections for electronic devices
  • Detection of cable connections for electronic devices
  • Detection of cable connections for electronic devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The embodiments of the present invention generally relate to the detection of cable connections for electronic devices.

[0023] In some embodiments, the receiving device or receiving device operates to identify the type of cable of the sending device or source device attached to the receiving device via a cable connection. In some embodiments, the cable can be connected to the port of the receiving device, and the port can be reused for multiple protocols. In some embodiments, even if the power of the source device is insufficient to provide a signal to perform a discovery sequence that is commonly used to identify the sink device, the sink device can still detect the type of cable connection.

[0024] The data source device can use a variety of different protocols to provide data. For example, a device can use specific protocols, including High-Definition Multimedia Interface (HDMI) (HDMI1.4 specification released on May 29, 2009), Mobile High-Definition Link (MHL) ) (MH...

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PUM

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Abstract

Embodiments of the invention are generally directed to detection of cable connections for electronic devices. An embodiment of an apparatus includes a port for the connection of a cable, the port being compatible with a first protocol and a second protocol, the port including a connector for the second protocol, the port including multiple pins including a first pin and a second pin. The apparatus further includes a pull-up resistor coupled between the first pin and a voltage source, a pull-down resistor coupled between the second pin and ground, and a voltage detection element coupled with the second pin. The apparatus is to determine that a cable compatible with the first protocol is connected to the port if the voltage detection element detects a voltage above a first threshold.

Description

[0001] Related application [0002] This application is related to and claims priority for US Provisional Patent Application No. 61 / 360,428 filed on June 30, 2010, which is incorporated herein by reference. Technical field [0003] The embodiment of the present invention relates to the field of electronic devices, and particularly relates to the detection of cable connections for electronic devices. Background technique [0004] As the capabilities and functions of electronic devices (especially mobile devices) gradually increase, these electronic devices have more opportunities to be connected together. These devices can be connected by cables to provide a variety of different functions. [0005] For example, a mobile device can be connected to a device through a cable to display data. The mobile device may contain, for example, high-definition video data for display. In order to display the video data on a television or other display device, the mobile device may be connected to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/10H04L29/06
CPCH04Q1/136G09G5/006G09G2330/021H04L69/32H04L9/40
Inventor B·宋M·H·金金奎东C·哈瑞尔
Owner UNIVERSAL CONNECTIVITY TECH INC