Patent ReferencesPower supply controller in a keyboard-equipped apparatus such as an electronic calculator Processor controlled sound synthesizer Power on and low voltage reset circuit Four mode microcomputer power save operation Patent #: 4317181 InventorsApplicationNo. 06/239545 filed on 03/02/1981US Classes:704/267Time elementExaminersPrimary: Kemeny, Emanuel S.Attorney, Agent or FirmInternational ClassesG10L 13/04 (20060101)G10L 13/00 (20060101) Foreign Application Priority Data1980-03-03 JPAbstractAn electronic apparatus includes a speech synthesizer, a speech synthesis controller, and a microprocessor connected to the speech synthesis controller. The microprocessor controls transmission of sound-related data from the microprocessor to the speech synthesis controller, receives control signals from the sound synthesis controller to said microprocessor and monitors the voltage supplied to the speech synthesis controller. For this purpose the microprocessor is responsive to an output signal indicative of a variation in the voltage for controlling the sound signal delivery operation of the speech synthesis controller. | |