Patent ID: 7719518

Claim:
A computer peripheral device comprising: a first housing; a second housing; a connecting member for connecting said first housing and said second housing, said connecting member being made of a conducting material and including a first connecting plate, a second connecting plate fixed onto said first housing and said second housing respectively and a rotating shaft with a rotating surface having a notch thereon, wherein said second housing is rotatable relative to said first housing with rotation of said rotating shaft, so that said computer peripheral device is switched between a first configuration and a second configuration, and wherein the first configuration is a cambered configuration or a flat configuration, and the second configuration is a cambered configuration or a flat configuration; and a judging circuit disposed inside said first housing and including a first conducting contact electrically connected to said first connecting plate through a first flexible metallic plate and a second conducting contact selectively connected to said rotating surface of the rotating shaft through a second flexible metallic plate, wherein said judging circuit activates a first function when said computer peripheral device is adjusted to said first configuration such that said first conducting contact is electrically connected to said second conducting contact through said rotating surface of the rotating shaft, and said judging circuit activates a second function when said computer peripheral device is adjusted to said second configuration such that the second flexible metallic plate is received in the notch and the electrical connection between said first conducting contact and said second conducting contact is interrupted.