Abstract: A circuit device includes a main power supply terminal, a backup power supply terminal, a voltage detection circuit, a register section, a processing circuit, and a power supply control circuit. A main power supply voltage is supplied through the main power supply terminal. A backup power supply voltage from a backup element is supplied through the backup power supply terminal. The voltage detection circuit detects the backup power supply voltage and outputs backup voltage data corresponding to the backup power supply voltage. Threshold voltage data is stored in the register section. The processing circuit compares the backup voltage data with the threshold voltage data. The power supply control circuit performs charging control on the backup element for charging with the main power supply voltage on the basis of the result of a comparison made by the processing circuit.

Abstract: The sensor module includes a sensor that detects environmental information of an object equipped with the sensor module, a resonator, an integrated circuit device, and a package that houses the sensor, the resonator, and the integrated circuit device. An integrated circuit device includes an oscillation circuit configured to generate a clock signal using a resonator, a real-time clock circuit configured to generate time information based on the clock signal, and a processing circuit configured to output, as log information, output environmental information based on an output signal of a sensor in association with the time information from the real-time clock circuit.

Abstract: An impact logger includes an acceleration sensor, a circuit element including a clocking circuit that generates time data, a sensor circuit that processes an output signal of the acceleration sensor, and a memory circuit that stores processing data processed by the sensor circuit and the time data in association with each other, and a package that accommodates the acceleration sensor and the circuit element, and the impact logger has a mass of less than 20 g. When a mass of an impact measurement target is m1 and the mass is m2, a relationship of m2?( 1/50)×m1 is satisfied.

Abstract: A projector device includes: a projector supported in a suspended state by a supporting device; a vibration generation device that generates a vibration acting on at least one of the supporting device and the projector; a vibration detection device that detects a vibration of the projector; and a reporting device that compares a detection value detected by the vibration detection device with a reference value and gives a report when a reporting condition is satisfied.

Abstract: An oscillator includes a resonator element, a temperature control element that controls a temperature of the resonator element, a microcontroller that stores a temperature control program and controls an operation of the temperature control element based on the temperature control program, and an interface circuit, in which the temperature control program is rewritable via the interface circuit.

Abstract: A processing system includes a reception unit configured to receive function selection information of a programmable real time clock device from a user terminal via a network, a processing unit configured to generate, based on the function selection information, information for writing for setting a function of the real time clock device, and a transmission unit configured to transmit the information for writing to the user terminal.

Abstract: An information providing system includes a reception unit, a processing unit, and a transmission unit. The reception unit receives desired characteristic data of a programmable oscillator input in a user terminal. The processing unit extracts compatible product information that is product information of the programmable oscillator compatible with the desired characteristic data and substitute product information that is product information of an oscillator to be a substitute proposal target. The transmission unit transmits the compatible product information and the substitute product information to the user terminal.

Abstract: A real-time clock module coupled to a memory device includes: a timing circuit configured to measure a time to generate time data; a first interface circuit configured to function as a master interface for the memory device; a power supply circuit configured to supply a power supply voltage to the memory device; and a control circuit configured to write, to the memory device, target time data corresponding to at least a part of time digits of the time data via the first interface circuit after the supply of the power supply voltage to the memory device is started, and to stop the supply of the power supply voltage after the target time data is written.

Abstract: A circuit device includes a main power supply terminal, a backup power supply terminal, a voltage detection circuit, a register section, a processing circuit, and a power supply control circuit. A main power supply voltage is supplied through the main power supply terminal. A backup power supply voltage from a backup element is supplied through the backup power supply terminal. The voltage detection circuit detects the backup power supply voltage and outputs backup voltage data corresponding to the backup power supply voltage. Threshold voltage data is stored in the register section. The processing circuit compares the backup voltage data with the threshold voltage data. The power supply control circuit performs charging control on the backup element for charging with the main power supply voltage on the basis of the result of a comparison made by the processing circuit.

Abstract: A real-time clock module includes: a timing circuit configured to measure a time to generate time data; a selection circuit configured to select at least one of a plurality of types of event data as target event data to be stored and select, as target time data to be stored, data corresponding to at least a part of time digits of the time data in response to generation of an event; and a memory circuit configured to store the target time data and the target event data.

Abstract: An oscillator includes a resonator element, a temperature control element that controls a temperature of the resonator element, a microcontroller that stores a temperature control program and controls an operation of the temperature control element based on the temperature control program, and an interface circuit, in which the temperature control program is rewritable via the interface circuit.

Abstract: A projector device includes: a projector supported in a suspended state by a supporting device; a vibration generation device that generates a vibration acting on at least one of the supporting device and the projector; a vibration detection device that detects a vibration of the projector; and a reporting device that compares a detection value detected by the vibration detection device with a reference value and gives a report when a reporting condition is satisfied.

Abstract: A real-time clock module includes: a timing circuit configured to measure a time to generate time data; a selection circuit configured to select at least one of a plurality of types of event data as target event data to be stored and select, as target time data to be stored, data corresponding to at least a part of time digits of the time data in response to generation of an event; and a memory circuit configured to store the target time data and the target event data.

Abstract: A real-time clock module coupled to a memory device includes: a timing circuit configured to measure a time to generate time data; a first interface circuit configured to function as a master interface for the memory device; a power supply circuit configured to supply a power supply voltage to the memory device; and a control circuit configured to write, to the memory device, target time data corresponding to at least a part of time digits of the time data via the first interface circuit after the supply of the power supply voltage to the memory device is started, and to stop the supply of the power supply voltage after the target time data is written.

Abstract: A real-time clock device includes a resonator, a clock signal generation circuit, a time-counting circuit, a terminal, and a time-to-digital conversion circuit. The clock signal generation circuit outputs a time-counting clock signal based on an oscillation clock signal. The time-counting circuit generates time-counting data based on the time-counting clock signal. An external signal is input to the terminal. The time-to-digital conversion circuit measures a time difference between a transition timing of a first signal based on the external signal and a transition timing of a second signal based on the oscillation clock signal or the time-counting clock signal with a resolution higher than a time-counting resolution of the time-counting circuit, and obtains time difference information corresponding to the time difference.

Abstract: A tank state estimating method of estimating a state in a tank at a predetermined point in time on a sailing course of an LNG carrier is provided. The LNG carrier carrying LNG stored in the tank as a cargo.

Abstract: A frequency measurement circuit includes a first counter that counts a pulse number of a reference clock signal and generates first count data, a second counter that counts a pulse number of a measurement target clock signal and generates second count data, a time-to-digital conversion circuit that generates first time difference data indicating a time difference between a first timing at which the first counter starts counting of the pulse number and a second timing at which the second counter starts counting of the pulse number, and second time difference data indicating a time difference between a third timing at which the first counter ends counting of the pulse number and a fourth timing at which the second counter ends counting of the pulse number, and a calculation circuit that performs calculation based on the second count data, the first time difference data, and the second time difference data and generates frequency data indicating a frequency of the measurement target clock signal.

Abstract: A circuit device is used in an electronic device including a receiver, a control circuit that performs processing on reception data received by the receiver using a clock signal, a transmitter that transmits transmission data generated by performing processing based on the reception data by the control circuit. The circuit device includes a time-to-digital conversion circuit that measures a time difference between a transition timing of a start signal based on the reception data and a transition timing of a stop signal based on the transmission data or the clock signal, and an output interface that outputs, to the control circuit, a measurement result of the time difference of the time-to-digital conversion circuit.

Abstract: Provided is a circuit device including: a clock signal generation circuit generating a plurality of multi-phase clock signals; a time-to-digital conversion circuit performing a count operation based on an i-th clock signal that corresponds to a multi-phase clock signal, to obtain a count value that corresponds to a time difference between transition timings of a first signal and a second signal, to obtain a first digital value that corresponds to a time difference between transition timings of the first signal and a j-th clock signal that corresponds to a multi-phase clock signal, and to obtain a second digital value that corresponds to a time difference between transition timings of the second signal and a k-th clock signal that corresponds to a multi-phase clock signal; and a processing circuit obtaining a digital value that corresponds to the time difference based on the count value, the first digital value, and the second digital value.

Abstract: A circuit device is used in an electronic device including a receiver, a control circuit that performs processing on reception data received by the receiver using a clock signal, a transmitter that transmits transmission data generated by performing processing based on the reception data by the control circuit. The circuit device includes a time-to-digital conversion circuit that measures a time difference between a transition timing of a start signal based on the reception data and a transition timing of a stop signal based on the transmission data or the clock signal, and an output interface that outputs, to the control circuit, a measurement result of the time difference of the time-to-digital conversion circuit.