Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral configuration
Reexamination Certificate
2005-04-26
2005-04-26
Elamin, A. (Department: 2116)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral configuration
C710S008000, C710S016000, C326S037000, C326S062000
Reexamination Certificate
active
06886052
ABSTRACT:
An automatic interface identification technique for an apparatus capable of supporting both USB and PS/2 interfaces comprises connecting a detector to first and second ports provided for the apparatus connected to a host computer through a USB or PS/2 interface. The detector has an interface detect function including a logic confirming mechanism and an interface identifying algorithm and a mode select function receiving first and second control signals such that the logic confirming mechanism is connected to the first and second ports by the interface detect function to detect the logic states of the first and second ports in association with the interface identifying algorithm to thereby correctly identify a USB or PS/2 interface is connected and to further determine USB or PS/2 mechanism in response to signal transmissions.
REFERENCES:
patent: 6460094 (2002-10-01), Hanson et al.
patent: 6529145 (2003-03-01), Lin
patent: 6601124 (2003-07-01), Blair
patent: 6625790 (2003-09-01), Casebolt et al.
patent: 6691201 (2004-02-01), Williams et al.
Chiu Yen-Chang
Lo Ming-Chuan
Wu Kao-Pin
Yeh Ting-Hao
Elamin A.
Elan Microelectronics Corporation
Rosenberg , Klein & Lee
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