Patent ID: 8169862

Claim:
A turntable having multiple-point touch function for a digital sound-signal device comprising: a base formed with an insert hole in a center, said insert hole of said base having a lower side provided with a load sensor for controlling sound-signal broadcasting speeds, said base provided with a photo-sensor at an outer edge; a multiple-point touch-induction circuit board having multiple-point induction function fixed on said base, said circuit board bored in a center with a through hole corresponding with said insert hole of said base; and a touch-control turntable assembled on said circuit board, said touch-control turntable provided in a center with a combining post protruding downward to be inserted through both said through hole of said circuit board and said insert hole of said base for combining said base, said circuit board and said turntable together, said combination post having a lower end touched with said load sensor, said touch-control turntable having an outer end edge disposed with lots of light-obstructing plates protruding downward and arranged axially, said photo-sensor able to detect a rotating direction and shifting distance of said touch-control turntable by means of said light-obstructing plates when said light-obstructing plates are rotated together with said touch-control turntable.