Abstract: An interface display control method in an electronic device, includes invoking and displaying a first level submenu interface on a trigger received, the first level submenu interface including menu item arrangement area and preview area, and controlling a display screen to display multiple first level submenu items on the menu item arrangement area for ease of access by user. The multiple first level submenu items correspond to application control parameters. The method responds to user first operation to activate and second operation of user selecting. The second operation signal is responded to, and current settings value of the control parameter, corresponding to the operated first level submenu item, is displayed. The first operation signal causes display of multiple second level submenu items or multiple bottom submenu items corresponding to the operated first level submenu item.

Abstract: A control circuit for a flashing lamp provides power for the flashing lamp. The control circuit includes a control module, a strobe module, and a booster module. The control module includes an oscillator and first and second NOR gates. A square wave from the oscillator of the control module controls the first and second NOR gates to output a first control signal and a second control signal of opposite potential to the strobe module. The strobe module controls the booster module to apply boosting to the flashing lamp, reducing the number of components necessary in a control circuit for a flashing lamp.

Abstract: An interface display control method in an electronic device, includes invoking and displaying a first level submenu interface on a trigger received, the first level submenu interface including menu item arrangement area and preview area, and controlling a display screen to display multiple first level submenu items on the menu item arrangement area for ease of access by user. The multiple first level submenu items correspond to application control parameters. The method responds to user first operation to activate and second operation of user selecting. The second operation signal is responded to, and current settings value of the control parameter, corresponding to the operated first level submenu item, is displayed. The first operation signal causes display of multiple second level submenu items or multiple bottom submenu items corresponding to the operated first level submenu item.

Abstract: A control circuit for a flashing lamp provides power for the flashing lamp. The control circuit includes a control module, a strobe module, and a booster module. The control module includes an oscillator and first and second NOR gates. A square wave from the oscillator of the control module controls the first and second NOR gates to output a first control signal and a second control signal of opposite potential to the strobe module. The strobe module controls the booster module to apply boosting to the flashing lamp, reducing the number of components necessary in a control circuit for a flashing lamp.

Abstract: A method for surface treatment is disclosed. The method is achieved by forming a MgO film on a metal surface through anode processing of Mg or Mg alloy in an alkaline solution. The alkaline solution includes a hydroxide, a thickening agent, and a film adjusting agent. As the method is performed, the target object is immersed in the alkaline solution, and the target object is connected to an anode with an average electric current density of 1˜5 A/dm, at a temperature of 0˜30° C., and within a time period of 10˜120 minutes to form a film of 5˜25 ?m. The forming rate of the film of the method of the present invention is fast, and the formed film is of little stress.

Abstract: An umbrella frame having a pair of mounting rings and frame members which are pivotally connected to each other and to the mounting rings. A frame member having an elongated rod with a notch. A joint assembly is attached to the elongated rod and includes laterally opposed connector halves which mate to form a sleeve over the elongated rod. The sleeve has an inner boss which fits within the notch in the elongated rod when the connector halves are mated over the elongated rod. A collar slides around the mated connector halves to clamp the connector halves together over the elongated rod and to retain the inner boss within the notch in the elongated rod. Strut frame members have an end joint assembly at each end. Rib frame members have an end joint assembly at their inner ends and midpoint joint assemblies at rib midpoints. A mounting ring having a mounting base with a ring of spaced and vertically extending teeth. The frame members are received between the teeth.