Electronic apparatus estimating ambient temperature and control method thereof
AssigneeCanon Kabushiki Kaisha
InventorsYasuhito Takaki, Jun Kamiya, Hiroshi Toriumi
Life of this patent
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Abstract
An electronic apparatus comprises a first thermometer and a second thermometer arranged such that a change over time of a difference between a first measurement obtained by the first thermometer and a second measurement obtained by the second thermometer satisfies a specific condition. The electronic apparatus executes control for restricting a function of the electronic apparatus in response to a temperature of a housing of the electronic apparatus exceeding a threshold. The electronic apparatus estimates an ambient temperature based on the first measurement, the second measurement, and the specific condition and sets the threshold based on the estimated ambient temperature.
Claims14
An electronic apparatus comprising:
- a first thermometer;
- a second thermometer,
- wherein the first thermometer and the second thermometer are arranged such that a change over time of a difference between a first measurement obtained by the first thermometer and a second measurement obtained by the second thermometer satisfies a specific condition;
- a CPU;
- a memory that stores a program for, when the program is executed by the CPU, causing the electronic apparatus to function as:
- a control unit that executes control for restricting a function of the electronic apparatus in response to a temperature of a housing of the electronic apparatus exceeding a threshold,
- wherein the control unit estimates an ambient temperature based on the first measurement, the second measurement, and the specific condition and sets the threshold based on the estimated ambient temperature, and
- wherein the control unit sets a second value obtained by adding a predetermined value to the estimated ambient temperature as the threshold.
A method of controlling an electronic apparatus, wherein the electronic apparatus comprises:
- a first thermometer;
- and
- a second thermometer;
- wherein the first thermometer and the second thermometer are arranged such that a change over time of a difference between a first measurement obtained by the first thermometer and a second measurement obtained by the second thermometer satisfies a specific condition;
- the method comprising:
- executing control for restricting a function of the electronic apparatus in response to a temperature of a housing of the electronic apparatus exceeding a threshold,
- wherein the executing control includes
- estimating an ambient temperature based on the first measurement, the second measurement, and the specific condition,
- setting the threshold based on the estimated ambient temperature,
- wherein the setting sets a second value obtained by adding a predetermined value to the estimated ambient temperature as the threshold.
Dependencies are inferred from the claim text.