The Display of the Previous Rejected Password Counts
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2003-Jun-18
This invention enhances the security function of BIOS password of Personal Computers (PC's) and the password of electric appliances that use password for equipment access protection. The phrase "Personal Computers (PC)" in the following description can be replaced to the phrase electric appliances such as Personal Digital Assistance (PDA). Current PC has a security function of password to prevent non-authorized accesses to the PC resources. IBM ThinkPad Power On Password (POP), Hard Disk Password (HDP), and Privileged Access Password (PAP) are the example of the password of the PC's mentioned in this disclosure.. The function of this invention is as follows: If the input of incorrect password has been rejected at power on time, the PC POST code (Power On Self Test) displays the number of previous rejected password attempts at the next correct power up operation as a warning to the authorized user who can input the correct password. After displaying the warning, the PC POST code waits for the user key input as an acknowledgment to the warning display. If there is no rejected password input before the correct power up operation, there is no special display concerning the previous password input information and the system boot process continue. This invention enables the correct user to be able to identify whether there are incorrect password inputs to his/her PC when the correct user powers up the system. This invention is not only applicable when a PC power is up but also applicable when the system resumes from suspend if the APM BIOS mode (Advanced Power Management BIOS mode) is used.