Temperature correction device and voltage control oscillation device

A temperature correcting apparatus comprising:

• a storing unit for storing a plurality of pairs of digital data consisting of pairs of voltage data and time data corresponding to the voltage data for each of a plurality of different detection addresses corresponding to a plurality of temperatures;
• an A/D converter for carrying out A/D conversion of an ambient temperature detected by a temperature sensor, and for outputting a corresponding detection address through the A/D conversion;
• a processor for acquiring, according to the detection address output from said A/D converter, a plurality of pairs of the digital data corresponding the detection address from said storing unit, and for sequentially outputting voltage data corresponding to the time data in response to timings determined by the time data of the digital data acquired;
• and
• a D/A converter for carrying out D/A conversion of the voltage data output from said processor, and for supplying D/A conversion results to said apparatus to be corrected, wherein
• said processor sequentially outputs the voltage data at intervals of a positive integer multiple of a minimum resolution of said D/A converter.

A voltage-controlled oscillation apparatus having a voltage-controlled oscillator and a temperature correcting apparatus for carrying out temperature correction of said voltage-controlled oscillator, said temperature correcting apparatus comprising:

• a storing unit for storing correcting data for individual temperatures in correspondence with addresses representing the individual temperatures, the correcting data for an individual temperature being generated by dividing an actually measured waveform of correcting voltages, which are required by an apparatus to be corrected at each of a plurality of different temperatures, by a positive integer multiple of a minimum resolution of a D/A converter to obtain voltage digital values representing voltage values at individual dividing points of the actually measured waveform and times corresponding to the dividing points, and generating a plurality of pairs consisting of the voltage digital values and the corresponding times at each temperature as the correcting data;
• temperature sensor means for detecting an ambient temperature of the apparatus to be corrected and producing a detection voltage;
• an A/D converter for A/D converting the detection voltage to produce detection address representing the temperature,
• processing means for reading out correcting data from said storing unit according to the detection address, extracting or calculating the voltage digital values about the correcting voltages required by the detection address, and the times corresponding to the voltage digital values from the correcting data, and for sequentially outputting the resultant voltage digital values in synchronization with the times;
• and
• a D/A converter for generating correcting voltages to be supplied to said apparatus to be corrected by performing D/A conversion of the voltage digital values output.

A voltage-controlled oscillation apparatus having a voltage-controlled oscillator and a temperature correcting apparatus for carrying out temperature correction of said voltage-controlled oscillator, said temperature correcting apparatus comprising:

• a storing unit for storing a plurality of pairs of digital data consisting of pairs of voltage data and time data corresponding to the voltage data for each of a plurality of different detection addresses corresponding to a plurality of temperatures;
• an A/D converter for carrying out A/D conversion of an ambient temperature detected by a temperature sensor, and for outputting a corresponding detection address through the A/D conversion;
• a processor for acquiring, according to the detection address output from said A/D converter, a plurality of pairs of the digital data corresponding the detection address from said storing unit, and for sequentially outputting voltage data corresponding to the time data in response to timings determined by the time data of the digital data acquired;
• and
• a D/A converter for carrying out D/A conversion of the voltage data output from said processor, and for supplying D/A conversion results to said apparatus to be corrected, wherein
• said processor sequentially outputs the voltage data at intervals of a positive integer multiple of a minimum resolution of said D/A converter.