Abstract: A microwave power transmission apparatus converts electric energy into microwaves, and transmits the microwaves to a microwave power receiver between sea and land. A power transmission antenna to emit the microwaves is directed to a direction of the microwave power receiver by a driver. When a beacon receiver detects a beacon signal transmitted by the microwave power receiver, a transmission signal generator generates a transmission signal emitted as microwaves from the power transmission antenna. Radio waves are not emitted from the power transmission antenna when the beacon signal is not detected. Not detecting the beacon signal corresponds to a situation where a power reception antenna cannot receive the microwaves due to motion of the antenna being on the sea. The wireless electric power transmission apparatus and electric power transfer system can prevent occurrence of a situation where the emitted microwaves cannot be received.

Abstract: A microwave power transmission apparatus converts electric energy into microwaves, and transmits the microwaves to a microwave power receiver between sea and land. A power transmission antenna to emit the microwaves is directed to a direction of the microwave power receiver by a driver. When a beacon receiver detects a beacon signal transmitted by the microwave power receiver, a transmission signal generator generates a transmission signal emitted as microwaves from the power transmission antenna. Radio waves are not emitted from the power transmission antenna when the beacon signal is not detected. Not detecting the beacon signal corresponds to a situation where a power reception antenna cannot receive the microwaves due to motion of the antenna being on the sea. The wireless electric power transmission apparatus and electric power transfer system can prevent occurrence of a situation where the emitted microwaves cannot be received.

Abstract: A scheme is provided for allowing the user to register adjustable items arbitrary selected from menus as a customized menu, and for preferentially displaying the customized menu, when displayed on a screen, at the highest hierarchical level of menu hierarchy, thus reducing menu operations. Adjustable items in menus frequently selected by the user are registered at the highest hierarchical level of the menu hierarchy and first displayed on the screen to allow each user to select an adjustable item with an extremely small number of menu operations, thereby making it possible to enable the user to rapidly and easily select a desired adjustable item.

Abstract: A monitor device capable of setting and adjusting various function items with an operation system having fewer number of keys and fitting an operation sense of a user. The movement of the cursor, and the change of the sound volume display and all kinds of adjustment values in a submenu can be performed with a tablet key which can be pressed and slide-operated with the result that almost all of the setting and adjustment on all kinds of functions of the monitor device can be performed with fewer required than keys of the conventional operation system.

Abstract: A method and apparatus by which function as of a television receiver can be selected simply. A main menu displays the highest level of a hierarchical menu which includes items corresponding to functions of a television receiver is displayed on a left side portion of a screen of the television receiver. When a cursor is moved to the first item of the main menu, while the main menu remains displayed on the screen, a sub menu corresponding to the first item is displayed on a right side portion of the screen. When the cursor is subsequently moved to one of the items forming the sub menu and then a predetermined operation is performed.