Abstract: Systems, apparatus, articles of manufacture, and methods are disclosed to implement seamless switching of dynamic range and/or refresh rate on display devices. An example apparatus disclosed herein causes a display to activate panel self refresh after a command to switch a graphics output from a first dynamic range to a second dynamic range, the graphics output provided to the display. The example apparatus also switches the graphics output from the first dynamic range to the second dynamic range after the panel self refresh is activated. The example apparatus further causes the display to deactivate the panel self refresh after the graphics output is switched to the second dynamic range.

Abstract: A suitcase lock comprises a manually operable actuator mounted in a bowed handle of a suitcase to actuate a guiding means which incorporates a combination lock and which in turn moves a release plate. The release plate has two opposite ends connecting with two locking means which are unlocked upon moving the release plate. The guiding means is provided with a means that prevents the suitcase lock from unlocking when the suitcase is not in a correct position.

Abstract: The automatically extensible and retractable wheel unit for mounting on a corner of a suitcase includes a housing with an aperture at the underside thereof, a bifurcated bracket pivotally supported on the housing, a wheel carried rotatably on the bracket for pivoting along with the bracket between a retracted position and an extended position, and a push-pull member pivotally supported on the housing and connected to a bracket by a C-shaped spring member. When the wheel is in the retracted position, a portion of the push-pull member extends out of the aperture so as to be contacted with the ground to push the wheel automatically out of the aperture as long as the suitcase is brought into a transported state. When the wheel is in the extended position, another portion of the push-pull member extends out of the aperture so as to be contacted with the ground to pull the wheel automatically back into the aperture as long as the suitcase being in a stationary state.