Integrated circuit device, resonator device, electronic device, and vehicle

Patent metadata

Field	Value
Publication number	US-11005478-B2
Application number	US-201916257350-A
Country	US
Kind code	B2
Filing date	Jan 25, 2019
Priority date	Jan 26, 2018
Publication date	May 11, 2021
Grant date	May 11, 2021

Abstract

An integrated circuit device includes first and second temperature sensors, an A/D conversion circuit that performs A/D conversion on first and second temperature detection voltages from the first and second temperature sensors and outputs first and second temperature detection data, a connection terminal that is electrically connected to a temperature detection target device of the first and second temperature sensors, and a digital signal processing circuit that performs digital calculation based on the first and second temperature detection data and performs a temperature compensation process of correcting temperature characteristics of the temperature detection target device.

First claim

What is claimed is:

1. An integrated circuit device electrically coupled to a temperature detection target device, comprising:
a first temperature sensor;
a second temperature sensor;
an A/D conversion circuit that performs A/D conversion on a first temperature detection voltage from the first temperature sensor and outputs first temperature detection data, and performs A/D conversion on a second temperature detection voltage from the second temperature sensor and outputs second temperature detection data;
a connection terminal electrically coupled to the temperature detection target device;
a digital signal processing circuit that performs digital calculation based on the first temperature detection data and the second temperature detection data and performs a temperature compensation process of correcting temperature characteristics of the temperature detection target device;
a power supply terminal where a power supply voltage is supplied; and
an output terminal from which a signal is output,
wherein a distance between the first temperature sensor and the connection terminal is smaller than at least one of a distance between the first temperature sensor and the power supply terminal and a distance between the first temperature sensor and the output terminal.

2. The integrated circuit device according to claim 1 , further comprising:
a support terminal in which an electrode for supporting the temperature detection target device is disposed,
wherein a distance between the second temperature sensor and the support terminal is smaller than at least one of a distance between the second temperature sensor and the power supply terminal and a distance between the second temperature sensor and the output terminal.

3. The integrated circuit device according to claim 1 , further comprising:
a support terminal in which an electrode for supporting a relay substrate in which wiring that electrically connects the temperature detection target device and the integrated circuit device is formed is disposed,
wherein a distance between the second temperature sensor and the support terminal is smaller than at least one of a distance between the second temperature sensor and the power supply terminal and a distance between the second temperature sensor and the output terminal.

4. The integrated circuit device according to claim 1 ,
wherein the temperature detection target device is a resonator, and
the integrated circuit device includes a drive circuit that drives the resonator.

5. An electronic device comprising:
the integrated circuit device according to claim 1 .

6. A vehicle comprising:
the integrated circuit device according to claim 1 .

7. An integrated circuit device electrically coupled to a temperature detection target device, comprising:
a first temperature sensor;
a second temperature sensor;
an A/D conversion circuit that performs A/D conversion on a first temperature detection voltage from the first temperature sensor and outputs first temperature detection data, and performs A/D conversion on a second temperature detection voltage from the second temperature sensor and outputs second temperature detection data;
a connection terminal electrically coupled to the temperature detection target device; and
a digital signal processing circuit that performs digital calculation based on the first temperature detection data and the second temperature detection data and performs a temperature compensation process of correcting temperature characteristics of the temperature detection target device,
wherein the digital signal processing circuit corrects the temperature characteristics of the temperature detection target device by a neural network calculation process based on the first temperature detection data and the second temperature detection data.

8. The integrated circuit device according to claim 7 ,
wherein the digital signal processing circuit corrects the temperature characteristics of the temperature detection target device by the neural network calculation process based on an amount of change in time of at least one of the first temperature detection data and the second temperature detection data.

9. A resonator device comprising:
the integrated circuit device according to claim 7 ; and
the temperature detection target device, wherein the temperature detection target device is a resonator.

10. The resonator device according to claim 9 ,
wherein the resonator is supported by the integrated circuit device through the connection terminal.

11. An integrated circuit device electrically coupled to a temperature detection target device, comprising:
a first temperature sensor;
a second temperature sensor;
an A/D conversion circuit that performs A/D conversion on a first temperature detection voltage from the first temperature sensor and outputs first temperature detection data, and performs A/D conversion on a second temperature detection voltage from the second temperature sensor and outputs second temperature detection data;
a connection terminal electrically coupled to the temperature detection target device; and
a digital signal processing circuit that performs digital calculation based on the first temperature detection data and the second temperature detection data and performs a temperature compensation process of correcting temperature characteristics of the temperature detection target device,
wherein the digital signal processing circuit performs a heat circuit simulation process using heat resistance information and heat capacitance information related to a heat conduction model based on the first temperature detection data and the second temperature detection data and estimates a temperature of the temperature detection target device.

Assignees

• Seiko Epson Corp

Inventors

• Haneda Hideo
• Sudo Yasuhiro

Classifications

• G06N3/048

  Activation functions · CPC title

• G06N3/08

  Learning methods · CPC title

• G06N3/09

  Supervised learning · CPC title

• G06N3/0499

  Feedforward networks · CPC title

• H03H7/00

  Multiple-port networks comprising only passive electrical elements as network components · CPC title