Invention Grant
US07685328B2 Generic universal serial bus device operable at low and full speed and adapted for use in a smart card device
有权
通用通用串行总线设备，可以低速和全速工作，适用于智能卡设备
- Patent Title: Generic universal serial bus device operable at low and full speed and adapted for use in a smart card device
- Patent Title (中): 通用通用串行总线设备，可以低速和全速工作，适用于智能卡设备
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Application No.: US10937752Application Date: 2004-09-09
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Publication No.: US07685328B2Publication Date: 2010-03-23
- Inventor: Serge Fruhauf , Robert A. Leydier
- Applicant: Serge Fruhauf , Robert A. Leydier
- Applicant Address: US TX Carrollton FR
- Assignee: STMicroelectronics, Inc.,Axalto
- Current Assignee: STMicroelectronics, Inc.,Axalto
- Current Assignee Address: US TX Carrollton FR
- Agent Lisa K. Jorgenson; Christopher F. Regan
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F13/00 ; G06F13/20
Abstract:
A USB device, integrated circuit, smart card and method are disclosed. A USB transceiver is connected to a data interface and operable at a respective low speed and full speed configuration. A processor as a USB device controller is operatively connected to the low speed USB transceiver and full speed USB transceiver and operable for transmitting a different device descriptor to a USB host for performing an enumeration depending on whether a low speed or high speed operation is chosen.
Public/Granted literature
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