Abstract: An automatic engine control system in which all solid state circuitry is isolated by open switches, open relay contacts and reversed biased diodes from either ground or the power supply during the standby state of the system. All solid state circuitry except that contained in the alarm circuitry is isolated during an alarm condition after shutdown of the engine has been effected. Novel circuitry is used for allowing the latching of a fault response relay while at the same time removing ground from other solid state circuitry. Further, the automatic engine starter and controller of the present invention utilizes unique and novel means for controlling the battery charger of the controlled engine and for initiating and resetting solid state timing circuitry.

Abstract: A television receiver includes a chassis having a digital tuner for generating local oscillator signals for tuning the receiver to respective channels in response to binary signals representing corresponding channel numbers and a signal processing unit for controlling at least one characteristic of the receiver such as the sound level, in response to binary signals representing the controllable characteristic. The receiver also includes a microcomputer including a RAM (Random Access Memory) with at least one memory location for storing binary signals representing the present time and a plurality of memory locations for storing binary signals representing future times and channel numbers of channels to be tuned at those times. A control portion of the microcomputer causes binary signals representing the channel number associated with a future time to be coupled to the digital tuner when the present time matches the future time.