USB hubs with galvanic isolation
First Claim
Patent Images
1. A universal serial bus hub comprising:
- a Universal Serial Bus (USB) Analog Front End (AFE) circuit module;
a hub core;
an isolator circuit module interposed between said USB AFE circuit module and said hub core, such that data communications between said hub core and said USB AFE circuit module pass through said isolator circuit module, said isolator circuit module serving to provide galvanic isolation between said hub core and USB AFE circuit module;
a first isolation adapter circuit module interposed between said USB AFE circuit module and said isolator circuit module, such that data communications between said USB AFE circuit module and said isolator circuit module pass through said first isolation adapter circuit module, wherein said first isolation adapter circuit module comprises a first analog interface circuit module coupled to said isolator circuit module and a first parallel to serial converter module coupled to said first analog interface circuit module and said USB AFE circuit module; and
a second isolation adapter circuit module interposed between said isolator circuit module and said hub core, such that data communications between said hub core and said isolator circuit module pass through said second isolation adapter circuit module, wherein said second isolation adapter circuit module comprises a second parallel to serial converter module coupled to said hub core and a second analog interface circuit module coupled to said second parallel to serial converter module and said isolator circuit module.
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Abstract
A universal serial bus (USB) hub includes a USB AFE circuit module, a hub core and an isolator circuit module interposed between the USB AFE circuit module and the hub core. Data communications between the hub core and the first USB AFE circuit module pass through the isolator circuit module. A method for communicating through a universal serial bus hub includes providing a USB AFE circuit module, providing a hub core, providing an isolator circuit module interposed between the USB AFE circuit module and the hub core, and directing communication from the USB AFE circuit module to the hub core through the isolator circuit module.
9 Citations
18 Claims
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1. A universal serial bus hub comprising:
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a Universal Serial Bus (USB) Analog Front End (AFE) circuit module; a hub core; an isolator circuit module interposed between said USB AFE circuit module and said hub core, such that data communications between said hub core and said USB AFE circuit module pass through said isolator circuit module, said isolator circuit module serving to provide galvanic isolation between said hub core and USB AFE circuit module; a first isolation adapter circuit module interposed between said USB AFE circuit module and said isolator circuit module, such that data communications between said USB AFE circuit module and said isolator circuit module pass through said first isolation adapter circuit module, wherein said first isolation adapter circuit module comprises a first analog interface circuit module coupled to said isolator circuit module and a first parallel to serial converter module coupled to said first analog interface circuit module and said USB AFE circuit module; and a second isolation adapter circuit module interposed between said isolator circuit module and said hub core, such that data communications between said hub core and said isolator circuit module pass through said second isolation adapter circuit module, wherein said second isolation adapter circuit module comprises a second parallel to serial converter module coupled to said hub core and a second analog interface circuit module coupled to said second parallel to serial converter module and said isolator circuit module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for communicating through a universal serial bus hub comprising:
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applying a communication to a Universal Serial Bus Analog Front End (USB AFE) circuit module; directing said communication from said USB AFE circuit module to an isolator circuit module, wherein said communication is directed from said USB AFE circuit module to said isolator circuit module with a first isolation adapter circuit module, said first isolation adapter circuit module comprising a first analog interface circuit module coupled to said isolator circuit module and a first parallel to serial converter module coupled to said first analog interface circuit module and said USB AFE circuit module; and directing said communication from said isolator circuit module to a hub core, wherein said communication is directed from said isolator circuit module to said hub core with a second isolation adapter circuit module, said second isolation adapter circuit module comprising a second parallel to serial converter module coupled to said hub core and a second analog interface circuit module coupled to said second parallel to serial converter module and said isolator circuit module. - View Dependent Claims (15, 16, 17, 18)
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Specification