Patent References 3760171 Programmable calculator Patent #: 4554641 InventorsApplicationNo. 341208 filed on 12/05/1994US Classes:345/536, Plural storage devices345/211, Display power source708/100, ELECTRICAL DIGITAL CALCULATING COMPUTER708/130, Programmable calculator713/321Programmable calculator with power saving featureExaminersPrimary: Hjerpe, RichardAssistant: Tran, Vui T. Attorney, Agent or FirmForeign Patent References
International ClassG09G 005/00Foreign Application Priority Data1993-12-07 JPAbstractAn electronic apparatus includes: a display screen; a power supply switch; a memory for storing a plurality patterns of graphic data, select information indicating which graphic data is selected, and the number of times by which the power supply switch is operated; a controller responsive to the power supply switch being operated for controlling the display screen to display graphic data of a pattern specified by the select information; and a device for updating in accordance with a predetermined scheme the select information and the number of times of operation of the power supply switch, if the power supply switch is operated and the number of times of operation of the power supply switch satisfies predetermined conditions. For example, when the power supply switch is operated a predetermined times, a dialog screen for selecting the next pattern is displayed. The patterns may be divided into groups so that upon operating the power supply switch predetermined times, the next pattern of the group is selected, and ultimately the dialog for selecting the next group is displayed.Field of SearchDisplay power source | |