Abstract: A programmable battery protection system. Implementations may include: a battery, only two field effect transistors (FETs), and a battery protection integrated circuit (IC). The battery protection IC may include an array of fuses, first plurality of latches, second plurality of latches, and a comparator. The array of fuses, first plurality of latches, and second plurality of latches may be coupled with a fuse refresh circuit coupled with an analog trigger circuit and a logic trigger circuit. The fuse refresh circuit may be configured to refresh the states of the latches using states of the array of fuses in response to receiving an operating trigger signal generated by the analog trigger circuit or a logic trigger signal generated by the logic trigger circuit. The first plurality of latches may be used to generate a threshold voltage that is provided to the comparator.

Abstract: A wristband-type information processing device includes: a band section configured to be worn on a wrist of a user; a sensor unit configured to detect a motion of the user; a vibration signal generating unit configured to generate a first vibration signal for vibrating another associated wristband-type information processing device according to the motion detected by the sensor unit; and a communication unit configured to transmit the first vibration signal generated by the vibration signal generating unit to the other wristband-type information processing device.

Abstract: A programmable battery protection system. Implementations may include: a battery, only two field effect transistors (FETs), and a battery protection integrated circuit (IC). The battery protection IC may include an array of fuses, first plurality of latches, second plurality of latches, and a comparator. The array of fuses, first plurality of latches, and second plurality of latches may be coupled with a fuse refresh circuit coupled with an analog trigger circuit and a logic trigger circuit. The fuse refresh circuit may be configured to refresh the states of the latches using states of the array of fuses in response to receiving an operating trigger signal generated by the analog trigger circuit or a logic trigger signal generated by the logic trigger circuit. The first plurality of latches may be used to generate a threshold voltage that is provided to the comparator.

Abstract: A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact composed of an oxide powder containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact after the sintering. The sintering includes (A) increasing the temperature of the compact to a first temperature within a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a second temperature within a temperature range of a liquid phase sintering process of the compact after (A); (C) decreasing the temperature of the compact to a third temperature within the temperature range of the shrinking process of the compact after (B); and (D) retaining the third temperature after (C).

Abstract: A programmable battery protection system. Implementations may include: a battery, only two field effect transistors (FETs) coupled with the battery, and a battery protection integrated circuit (IC) coupled with the FETs. The battery protection IC may include an array of fuses, a plurality of latches coupled with the array of fuses, and a comparator coupled with the plurality of latches. The array of fuses and the plurality of latches may be coupled with a fuse refresh circuit coupled with a trigger circuit where the fuse refresh circuit is configured to refresh the states of the plurality of latches using states of the array of fuses in response to receiving one of a power on signal and an operating trigger signal generated by the trigger circuit. The plurality of latches may be used to generate a threshold voltage that is provided to the comparator.

Abstract: A programmable battery protection system. Implementations may include: a battery, only two field effect transistors (FETs) coupled with the battery, and a battery protection integrated circuit (IC) coupled with the FETs. The battery protection IC may include an array of fuses, a plurality of latches coupled with the array of fuses, and a comparator coupled with the plurality of latches. The array of fuses and the plurality of latches may be coupled with a fuse refresh circuit coupled with a trigger circuit where the fuse refresh circuit is configured to refresh the states of the plurality of latches using states of the array of fuses in response to receiving one of a power on signal and an operating trigger signal generated by the trigger circuit. The plurality of latches may be used to generate a threshold voltage that is provided to the comparator.

Abstract: There is provided a lead-free piezoelectric material having a satisfactory piezoelectric constant and mechanical quality factor in the range of device operating temperatures (from ?30° C. to 50° C.). The piezoelectric material contains a main constituent containing a perovskite-type metal oxide expressed by the general formula (Ba1-xCax)a(Ti1-yZry)O3, where x, y and a satisfy the 0.030?x<0.090, 0.030?y?0.080, and 0.9860?a?1.0200. The material also contains 0.040 to 0.500 part by weight of Mn, 0.042 to 0.850 part by weight of Bi, 0 to 0.028 part by weight of Li, 0.001 to 4.000 part by weight of a third sub-constituent including at least one of Si and B, and 0.001 to 4.000 parts by weight of Cu, each in terms of element relative to 100 parts by weight of the metal oxide.

Abstract: In the present disclosure, friction stir welding tools having probes and stationary shoulders are disposed at corners between a first workpiece and a second workpiece. A welding device main body includes axially perpendicular movement units for moving spindle units, which hold the respective friction stir welding tools on a frame, in directions perpendicular to rotary shafts of probes, and axial movement units for moving the spindle units in directions parallel to the rotary shafts of the probes.

Abstract: A programmable battery protection system. Implementations may include a battery protection integrated circuit (IC) with an array of fuses, a plurality of latches coupled with the array of fuses, a plurality of MOSFETs coupled with the plurality of latches, and a plurality of resistors coupled in series and in parallel with each one of the plurality of MOSFETs. The IC may also include a comparator coupled with the plurality of resistors and with a battery control circuit. Whether any one of the array of fuses is open or closed (remains closed) may be set by a fuse trimming signal from the battery control circuit. A voltage supplied to the comparator by the plurality of resistors during operation may be one of a discharge overcurrent threshold voltage, a charge overcurrent threshold voltage, or a short current threshold voltage.

Abstract: A programmable battery protection system. Implementations may include a battery protection integrated circuit (IC) with an array of fuses, a plurality of latches coupled with the array of fuses, a plurality of MOSFETs coupled with the plurality of latches, and a plurality of resistors coupled in series and in parallel with each one of the plurality of MOSFETs. The IC may also include a comparator coupled with the plurality of resistors and with a battery control circuit. Whether any one of the array of fuses is open or closed (remains closed) may be set by a fuse trimming signal from the battery control circuit. A voltage supplied to the comparator by the plurality of resistors during operation may be one of a discharge overcurrent threshold voltage, a charge overcurrent threshold voltage, or a short current threshold voltage.

Abstract: A friction stir welding device includes a pair of workpiece surface plates between which a gap extending along a welding line between workpieces is formed; a welding device body including a rotatable friction stir welding tool protruding upward from the gap; and a linear guide mechanism and a moving device for the welding device body. The moving device has a configuration in which a pair of pin racks extending in a direction along the gap are disposed at symmetrical positions on both sides in a width direction with a position immediately below a tool movement path of the friction stir welding tool as a symmetrical axis, and pin gears that individually mesh therewith are provided in the welding device body so as to be rotatably driven. Respective sets of a pin rack and a pin gear are alternately brought into a strong meshing state during the movement of the welding device body by causing the locations of pins and teeth thereof to deviate from each other by a half pitch.

Abstract: A programmable battery protection system. Implementations may include a battery protection integrated circuit (IC) with an array of fuses, a plurality of latches coupled with the array of fuses, a plurality of MOSFETs coupled with the plurality of latches, and a plurality of resistors coupled in series and in parallel with each one of the plurality of MOSFETs. The IC may also include a comparator coupled with the plurality of resistors and with a battery control circuit. Whether any one of the array of fuses is open or closed (remains closed) may be set by a fuse trimming signal from the battery control circuit. A voltage supplied to the comparator by the plurality of resistors during operation may be one of a discharge overcurrent threshold voltage, a charge overcurrent threshold voltage, or a short current threshold voltage.

Abstract: A programmable battery protection system. Implementations may include: a battery, only two field effect transistors (FETs) coupled with the battery, and a battery protection integrated circuit (IC) coupled with the FETs. The battery protection IC may include an array of fuses, a plurality of latches coupled with the array of fuses, and a comparator coupled with the plurality of latches. The array of fuses and the plurality of latches may be coupled with a fuse refresh circuit coupled with a trigger circuit where the fuse refresh circuit is configured to refresh the states of the plurality of latches using states of the array of fuses in response to receiving one of a power on signal and an operating trigger signal generated by the trigger circuit. The plurality of latches may be used to generate a threshold voltage that is provided to the comparator.

Abstract: A camera system includes a remote camera, a beacon signal transmission apparatus that is disposed at a location corresponding to a preset point and transmits a beacon signal, and an electronic device that receives the beacon signal. One or both of the remote camera and the electronic device include a storage unit, a distance determination section, and a control command generation section. The storage unit stores information regarding the preset point. The distance determination section estimates a distance between the tag device and the beacon signal transmission apparatus, based on a reception intensity of the beacon signal. When the distance estimated by the distance determination section is less than a predetermined value, the control command generation section generates a control command that causes the remote camera to face the preset point, based on information stored in the storage unit.

Abstract: An augmented reality display system includes: a data producing system that produces position information of an object; a cloud server that receives the position information produced by the data producing system; and a terminal device connectable to the cloud server through a network. The terminal device includes: an imaging unit that produces an image data; a camera attitude estimating unit that estimates an attitude of the imaging unit from the image data; a data receiving unit that receives a content and the position information regarding the content from the cloud server; a data overlaying unit that transforms the position information correspondingly to the attitude of the imaging unit estimated by the camera attitude estimating unit, and overlays the content on the image data based on a reference position indicated by the transformed position information to obtain an overlay image data; and a display unit that displays the overlay image data.

Abstract: A fixing apparatus is operable in relation to either of a first nominal voltage and a second nominal voltage, as an alternating voltage of a commercial alternating current power supply. The apparatus detects the alternating voltage and a temperature of a first heater or a first rotating member. A driving circuit supplies to the first heater a power if a drive signal is being inputted, and to not supply to the first heater the power if the drive signal is not being inputted. A controller determines a duty ratio of the drive signal to be a first duty ratio or a second duty ratio smaller than the first duty ratio.

Abstract: A charge/discharge control circuit includes a control circuit which outputs a control signal to a charge control terminal and a discharge control terminal respectively, a charge/discharge monitoring circuit which monitors charge/discharge of a secondary battery, a charger detection circuit connected to a charger detection terminal and configured to detect a charger connection, and a load open detection circuit connected to the charger detection terminal and configured to detect a state of a load. In response to reception of a signal to instruct turning on of a charge control FET from the charger detection circuit, the control circuit turns on the charge control FET even when the control circuit turned off the charge control FET in response to the signal to instruct turning off of the charge control FET from the charge/discharge monitoring circuit.

Abstract: A charge/discharge control circuit includes a first power supply terminal connected to a first electrode of a secondary battery, and a discharge control output circuit which outputs a discharge control signal to a gate of a discharge control FET which controls discharging of the secondary battery. The discharge control output circuit includes a clamp voltage output circuit which outputs a clamp voltage lower than a voltage of the first power supply terminal to a discharge control terminal to turn on the discharge control FET when the voltage of the first power supply terminal is higher than a prescribed voltage, and a power supply voltage output circuit which outputs the voltage of the first power supply terminal to the discharge control terminal to turn on the discharge control FET when the voltage of the first power supply terminal is equal to or less than the prescribed voltage.

Abstract: A charge and discharge control circuit operates between a first and a second power supply voltage of the secondary battery, and is used in a cascade-connection to the second charge and discharge control circuit having the same configuration, and includes an output circuit and an output terminal for discharge control, an input circuit and an input terminal for discharge control, and a control circuit. The input circuit includes a first MOS transistor having a source terminal connected to the input terminal and a gate terminal for receiving the first power supply voltage, a second MOS transistor having a drain terminal and a gate terminal connected to a drain terminal of the first MOS transistor and a source terminal for receiving the second power supply voltage, and a third MOS transistor current-mirror-connected to the second MOS transistor and having a drain terminal for supplying a discharge control input signal.

Abstract: A charge/discharge control circuit includes: a first power supply terminal connected to a first electrode of a secondary battery; a second power supply terminal connected to a second electrode of the secondary battery; a control circuit configured to control charge/discharge of the secondary battery; and a power-down release pulse generation circuit connected to the power-down release terminal, the power-down release pulse generation circuit being configured to supply, in a power-down state of the charge/discharge control circuit, a power-down release pulse at least to the control circuit in response to an input of a power-down release signal to the power-down release terminal to release the power-down state.