Structure for preventing loss of pen for electronic devices

Details Structure for preventing loss of pen for electronic devices Structure for preventing loss of pen for electronic devices

2006-10-03

2006-10-03

Pope, Daryl C (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S686100, C340S687000, C340S686400

Reexamination Certificate

active

07116225

ABSTRACT:
The present invention discloses a structure for preventing the loss of a pen of an electronic device comprising a pen holding slot, a sensor switch disposed in the pen holding slot, and a control circuit being electrically connected to the sensor switch, so that if the pen is not placed into the pen hold slot, the sensor switch will send a non-press signal to the control circuit, enabling the control circuit to turn on a beeping circuit to generate a warning sound to remind users to place the pen back into the pen holding slot. Therefore, the present invention can prevent the loss of the pen by the reminder of such warning sound.

REFERENCES:
patent: 4870405 (1989-09-01), Fletcher
patent: 5614886 (1997-03-01), Snell et al.
patent: 5625606 (1997-04-01), Openiano
patent: 5635959 (1997-06-01), Takeuchi et al.
patent: 6114958 (2000-09-01), Murphy

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