Method for switching Num Lock mode
AssigneeWeltrend Semiconductor Inc.
InventorsWei-Yu Kuo, Di-Fei Liu, Yi-Feng Jang
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Abstract
A method for switching the Num Lock mode of a digital apparatus that is externally coupled with a keypad. When the Num Lock modes of digital apparatus and keypad are different, the keypad transfers the data including a combination code that combines a Num Lock code and a pressed key code to the digital apparatus firstly after any key of the keypad being pressed, and transfers the data including a Num Lock code to the digital apparatus secondly. The main objective of the method according to the present invention is temporally switching Num Lock mode and recovering back to the original mode of the digital apparatus, therefore the input operations of the keypad and the digital apparatus are quite independent and never collision each other.
Claims12
A method for switching Num Lock mode, said method providing a digital apparatus externally coupled with a keypad each with a separate Num lock mode and comprising steps of:
- detecting a state, said state indicating the Num Lock modes of said digital apparatus and said keypad being different;
- and
- according to said state, causing said keypad to first transfer the data including a combination code that represents a Num Lock code and the key code of a pressed key to said digital apparatus, and second to transfer the data representing said Num Lock code to said digital apparatus.
A method for switching Num Lock mode, said method providing a digital apparatus externally coupled with a keypad each with a separate Num lock mode and comprising steps of:
- detecting a first state, said first state indicating the Num Lock mode of said digital apparatus being OFF and the Num Lock mode of said keypad being ON;
- detecting a second state, said second state indicating the Num Lock mode of said digital apparatus being ON and the Num Lock mode of said keypad being OFF;
- and
- according to said first and second state, causing said keypad to first transfer the data including a combination code that representing a Num Lock code and the key code of a pressed key to said digital apparatus, and second to transfer the data representing said Num Lock code to said digital apparatus.
Dependencies are inferred from the claim text.