TEMPERATURE CONTROL DEVICE WITH AUTOMATICALLY ADJUSTABLE BACKLIGHTING
First Claim
1. A method for controlling an HVAC system by a control circuit of a temperature control device, the method comprising:
- receiving a temperature control signal indicating a temperature in a space around the temperature control device;
receiving a set point temperature;
controlling, in an idle state, an internal electrical load to a first state;
sampling, in the idle state, the temperature control signal;
determining, in the idle state, a sampled temperature based on the temperature control signal;
storing, in the idle state, the sampled temperature in memory;
controlling, in an awake state, the internal electrical load to a second state, wherein the internal electrical load consumes more power in the second state than in the first state;
ceasing sampling of the temperature control signal, in the awake state;
retrieving, in the awake state, the sampled temperature stored in the memory during the idle state;
comparing the retrieved sampled temperature to the set point temperature; and
based on comparing the retrieved sampled temperature to the set point temperature, controlling the HVAC system.
1 Assignment
0 Petitions
Accused Products
Abstract
A temperature control device (e.g., a thermostat) may be configured to control an internal heat-generating electrical load so as to accurately measure a present temperature in a space around the temperature control device. The temperature control device may comprise a temperature sensing circuit configured to generate a temperature control signal indicating the present temperature in the space, and a control circuit configured to receive the temperature control signal and to control the internal electrical load. The control circuit may be configured to energize the internal electrical load in an awake state and to cause the internal electrical load to consume less power in an idle state. The control circuit may be configured to control the internal electrical load to a first energy level (e.g., a first intensity) during the awake state and to a second energy level (e.g., second intensity) that is less than the first during the idle state.
1 Citation
19 Claims
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1. A method for controlling an HVAC system by a control circuit of a temperature control device, the method comprising:
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receiving a temperature control signal indicating a temperature in a space around the temperature control device; receiving a set point temperature; controlling, in an idle state, an internal electrical load to a first state; sampling, in the idle state, the temperature control signal; determining, in the idle state, a sampled temperature based on the temperature control signal; storing, in the idle state, the sampled temperature in memory; controlling, in an awake state, the internal electrical load to a second state, wherein the internal electrical load consumes more power in the second state than in the first state; ceasing sampling of the temperature control signal, in the awake state; retrieving, in the awake state, the sampled temperature stored in the memory during the idle state; comparing the retrieved sampled temperature to the set point temperature; and based on comparing the retrieved sampled temperature to the set point temperature, controlling the HVAC system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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sampling a temperature signal, the temperature signal indicating a temperature in a space around a temperature control device; determining, in an idle state, a sampled temperature based on the temperature signal; storing, in the idle state, the sampled temperature in memory; controlling, in the idle state, an internal electrical load to a first state; and controlling, in an awake state, the internal electrical load to a second state, wherein the internal electrical load consumes more power in the second state than in the first state; ceasing sampling of the temperature signal, in the awake state; retrieving, in the awake state, the sampled temperature stored in the memory during the idle state; comparing the retrieved sampled temperature to a set point temperature; and based on comparing the retrieved sampled temperature to the set point temperature, controlling an HVAC system. - View Dependent Claims (14, 15, 16)
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17. A method comprising:
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sampling a temperature signal, the temperature signal indicating a temperature in a space around a temperature control device; determining, in an idle state, a sampled temperature based on the temperature signal; storing, in the idle state, the sampled temperature in memory; controlling, in the idle state, an internal electrical load to a first state; receiving an actuation of a button; in response to receiving the actuation, transitioning from the idle state to an awake state; controlling, in the awake state, the internal electrical load to a second state, wherein the internal electrical load consumes more power in the second state than in the first state; ceasing sampling of the temperature signal, in the awake state; retrieving, in the awake state, the sampled temperature stored in the memory during the idle state; comparing the retrieved sampled temperature to a set point temperature; and based on comparing the retrieved sampled temperature to the set point temperature, controlling an HVAC system. - View Dependent Claims (18, 19)
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Specification