Type A USB receptacle with plug detection
First Claim
1. A modified universal serial bus (USB) Series A receptacle connector that is capable of receiving a standard USB Series A plug connector, the modified USB Series A receptacle connector comprising:
- a metallic housing;
an extension plate disposed inside the metallic housing and spaced away from inside walls of the metallic housing;
a plurality of receptacle contact pins disposed on a first side of the extension plate and configured to mate with a corresponding plurality of plug contact pins in a standard Series A USB plug connector, the plurality of receptacle contact pins including a power pin, a ground pin, and two data pins; and
a plug detector separate from the plurality of receptacle contact pins and configured to detect an insertion of the standard USB Series A plug connector into the modified USB Series A receptacle connector while power is being withheld from the power pin.
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Accused Products
Abstract
A modified Series A universal serial bus (USB) receptacle connector is equipped with the functionality to allow the electronic system in which it resides to be configured either as a host device or a peripheral device. The modified USB Series A receptacle connector, according to one embodiment of the invention may include a mechanism such as an additional pin or a mechanical switch to detect the presence of a standard USB Series A plug being inserted into it. Upon detection of a plug, an algorithm may allow the system to determine whether it is to act as a host device or a peripheral device and to determine which device supplies power.
125 Citations
18 Claims
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1. A modified universal serial bus (USB) Series A receptacle connector that is capable of receiving a standard USB Series A plug connector, the modified USB Series A receptacle connector comprising:
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a metallic housing; an extension plate disposed inside the metallic housing and spaced away from inside walls of the metallic housing; a plurality of receptacle contact pins disposed on a first side of the extension plate and configured to mate with a corresponding plurality of plug contact pins in a standard Series A USB plug connector, the plurality of receptacle contact pins including a power pin, a ground pin, and two data pins; and a plug detector separate from the plurality of receptacle contact pins and configured to detect an insertion of the standard USB Series A plug connector into the modified USB Series A receptacle connector while power is being withheld from the power pin. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electronic system comprising:
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a USB transceiver which is configurable for down-stream facing and up-stream facing connections; a host controller coupled to the USB transceiver; a peripheral controller coupled to the USB transceiver; and a modified USB Series A receptacle connector configured to; detect an insertion of a standard USB Series A plug connector while power is being withheld from the modified USB Series A receptacle connector; and generate upon detection of insertion of the standard USB Series A plug connector, a plug detect signal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification