Temperature compensating circuit, electronic apparatus and radio unit having temperature compensating function

A temperature compensating circuit for compensating an operation of an electronic circuit having a temperature characteristic in accordance with an ambient temperature of the electric circuit, comprising:

• temperature detecting means for detecting an ambient temperature of the electronic circuit;
• and
• temperature compensating control means comprising:
• first storage means for storing corrected temperatures each of which corresponds to one of a plurality of detected ambient temperatures, said corrected temperatures being set at values for correcting detection errors in the detected ambient temperatures on the basis of a difference between a measure temperature measured with respect to a representative temperature and an expectation temperature expected with respect to the representative temperature, said representative temperature being a temperature within a temperature range that is to be corrected and that is a detection characteristic of said temperature detecting means;
• second storage means for storing an operation correction data prepared for correcting a temperature characteristic of the electronic circuit;
• and
• correction processing means for selectively reading, from the first storage means, a corrected temperature corresponding to the ambient temperature detected by the temperature detecting means, and for correcting the operation of the electronic circuit on the basis of the corrected temperature and operation correction data stored in the second storing means corresponding to the corrected temperature.

An electronic apparatus comprising:

• an electronic circuit having a temperature characteristic and designed for performing a predetermined operation;
• a temperature-detecting means for detecting an ambient temperature of the electronic circuit during operation;
• and
• a temperature compensation circuit comprising:
• first storage means for storing corrected temperatures each of which corresponds to one of a plurality of detected ambient temperatures, the detected ambient temperatures being within a temperature range that is to be corrected and that is a detection characteristic of the temperature detecting means, and said corrected temperatures being set at values for correcting detection errors in the detected ambient temperatures;
• second storage means for storing an operation correction data prepared for correcting a temperature characteristic of the electronic circuit;
• and
• correction processing means for selectively reading, from the first storage means, a corrected temperature corresponding to the ambient temperature of the electronic circuit detected by the temperature detecting means during operation, and for correcting the operation of the electronic circuit on the basis of the corrected temperature and operation correction data stored in the second storing means corresponding to the corrected temperature.

An electronic apparatus comprising:

• an electronic circuit having a temperature characteristic and designed for performing a predetermined operation;
• a temperature-detecting means for detecting a current ambient temperature of the electronic circuit;
• and
• a temperature compensation circuit comprising:
• first storage means for storing corrected temperatures each of which corresponds to one of a plurality of detected ambient temperatures, said corrected temperatures being set at values for correcting detection errors in the detected ambient temperatures on the basis of a difference between a measure temperature measured with respect to a representative temperature and an expectation temperature expected with respect to the representative temperature, said representative temperature being a temperature within a temperature range that is to be corrected and that is a detection characteristic of said temperature detecting means;
• second storage means for storing operation correction data prepared for correcting a temperature characteristic of the electronic circuit;
• and
• correction processing means for selectively reading, from the first storage means, a corrected temperature corresponding to the current ambient temperature detected by the temperature detecting means, and for correcting the operation of the electronic circuit on the basis of the corrected temperature and the operation correction data stored in the second storing means prepared for correcting a temperature characteristic of the electronic circuit.