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US 6,211,475 B1Granted
Keyboard with key lock function
AssigneeNEC Corporation
InventorAkiyo Ozaki
Life of this patent
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Abstract
A keyboard has a slidable key lock switch which is supported in a keyboard housing and not slidable for unintentional switching between a lock position and an unlock position. The keyboard also has a contact provided on a lead for sending signals from a keyboard circuit in the keyboard housing to an information processing device. The contact can selectively be opened and closed by a manually operable member of the key lock switch.
Claims4
A keyboard comprising:
- a housing;
- a plurality of key buttons supported in said housing for sending signals to an information processing device;
- and
- a key lock switch supported in said housing that prevents signals from being sent to the information processing device when any of said key buttons are pressed while the information processing device is turned on;
- said key lock switch having a structure that is resistant to unintentional switching from a lock position to an unlock position, or means for preventing unintentional switching from a lock position to an unlock position.
2 more elements
Dependencies are inferred from the claim text.