Media playing device

Details Media playing device Media playing device

2008-06-09

2009-12-29

Gandhi, Jayprakash N (Department: 2835)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S679300, C345S156000, C381S182000, C463S046000, C312S223200

Reexamination Certificate

active

07639478

ABSTRACT:
A media playing device is provided. In an exemplary form, the media playing device includes a housing having a cylindrical end with an opening. The media playing device also includes a hollow turning knob. The knob has two protrusions on its inside surface. The media playing device additionally includes a PCB disposed inside the housing with a micro controller unit (MCU) and a pair of switches. The medial playing device further includes an attachment means for attaching the knob to the cylindrical end of the housing and allowing the knob to rotate with respect to the cylindrical end. When the knob is rotated in clockwise direction or counterclockwise direction, one of the two protrusions moves within the opening and can be moved to a position to contact one of the two switches to activate the switch. The activated switch sends a signal to the MCU and the MCU execute an operation.

REFERENCES:
patent: 2007/0060017 (2007-03-01), Klusmeyer et al.
patent: 2008/0165997 (2008-07-01), Skurdal et al.

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