초록 ▼

A programmable thermostat employing means for sensing the ambient temperature on the thermostat, a clock for generating digital electrical signals representative of real time, a programmable digital memory for retaining a schedule of times and temperature ranges for a particular repetitive time cycl

A programmable thermostat employing means for sensing the ambient temperature on the thermostat, a clock for generating digital electrical signals representative of real time, a programmable digital memory for retaining a schedule of times and temperature ranges for a particular repetitive time cycle, display means for indicating selected information including programming mode, time, and temperature conditions during the programming and operation of the device, and control means for interrogating the current temperature range in the times-temperatures schedule, determining whether the ambient temperature on the thermostat is within that range, and generating a control signal to the furnace or air conditioner when appropriate.

대표청구항 ▼

A thermostat for controlling the application of electrical power to temperature modifying loads comprising: a clock operative to generate digital electrical signals having values representataive of real time; a programmable, digital memory; program input means for loading said memory with a pluralit

A thermostat for controlling the application of electrical power to temperature modifying loads comprising: a clock operative to generate digital electrical signals having values representataive of real time; a programmable, digital memory; program input means for loading said memory with a plurality of separate entries each entry including a pair of digital signals representing two temperatures defining limits of a desired temperature range at a particular time over the a repetitive time cycle; display means for displaying a particular time and said corresponding temperature range; circuitry for applying the output of the clock to the memory to generate a digital electric signal representative of the upper and lower limits of the desired temperature range at a particular time as stored in a selected entry; and means for receiving an electrical signal having a characteristic which is a function of the ambient temperature and for receiving the generated output of the memory and for generating control signals for said loads.