Abstract: A speaker device in one embodiment of the present invention includes a plurality of microphones including at least a first microphone and a second microphone, and a speaker unit including a vibrating surface, a distance between a predetermined position on the vibrating surface and the first microphone being equal to a distance between the predetermined position and the second microphone.

Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a ratio (SH2O/SN2) of a specific surface area calculated from moisture adsorption at 298 K to a specific surface area calculated from nitrogen adsorption at 77 K is 0.60 or less.

Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a specific surface area calculated from carbon dioxide adsorption at 273 K is 8.5 m2/g or less.

Abstract: A speaker driving device includes a first calculation unit, a first driving signal generation unit and a third calculation unit. The first calculation unit outputs a first calculation signal obtained from a first input signal based on response characteristics according to a first parameter defining an equivalent circuit of a first speaker unit. The first driving signal generation unit generates a first driving signal based on a second driving signal and the first calculation signal. The first driving signal drives a first output speaker unit. The third calculation unit generates a third calculation signal from a second input signal based on response characteristics according to a third parameter defining an equivalent circuit of a third speaker unit. The second driving signal generation unit generates the second driving signal based on the first driving signal and the third calculation signal. The second driving signal drive a second output speaker unit.

Abstract: A negative electrode active material for a lithium ion secondary battery, the negative electrode active material includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a specific surface area calculated from moisture adsorption at 298 K is 6.5 m2/g or less.

Abstract: A negative electrode active material for a lithium ion secondary battery is one that includes silicon oxide particles each having carbon present on a part of a surface of or an entire surface thereof, that has a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, that is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, that is derived from SiO2, of from 1.0 to 2.6 when CuK? radiation with a wavelength of 0.154056 nm is employed as a radiation source, and that has a mean value of an aspect ratio (S/L) of its minor axis (S) to its major axis (L) of 0.45?S/L?1.

Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a ratio (SH2O/SN2) of a specific surface area calculated from moisture adsorption at 298 K to a specific surface area calculated from nitrogen adsorption at 77 K is 0.60 or less.

Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a specific surface area calculated from carbon dioxide adsorption at 273 K is 8.5 m2/g or less.

Abstract: A negative electrode active material for a lithium ion secondary battery, the negative electrode active material includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a specific surface area calculated from moisture adsorption at 298 K is 6.5 m2/g or less.

Abstract: A speaker driving device includes a first calculation unit, a first driving signal generation unit and a third calculation unit. The first calculation unit outputs a first calculation signal obtained from a first input signal based on response characteristics according to a first parameter defining an equivalent circuit of a first speaker unit. The first driving signal generation unit generates a first driving signal based on a second driving signal and the first calculation signal. The first driving signal drives a first output speaker unit. The third calculation unit generates a third calculation signal from a second input signal based on response characteristics according to a third parameter defining an equivalent circuit of a third speaker unit. The second driving signal generation unit generates the second driving signal based on the first driving signal and the third calculation signal. The second driving signal drive a second output speaker unit.

Abstract: A speaker driving device including a setting part setting at least one parameter defining an equivalent circuit of a first speaker unit as a first parameter; a first calculator configured to change a first frequency response based on the first parameter, the changed first frequency response being applied to an input signal; and a driving signal generator configured to generate a drive signal for driving a speaker unit based on a first calculation signal, the first calculation signal being obtained by applying the changed first frequency response to the input signal.

Abstract: A speaker driving device including a setting part setting at least one parameter defining an equivalent circuit of a first speaker unit as a first parameter; a first calculator configured to change a first frequency response based on the first parameter, the changed first frequency response being applied to an input signal; and a driving signal generator configured to generate a drive signal for driving a speaker unit based on a first calculation signal, the first calculation signal being obtained by applying the changed first frequency response to the input signal.

Abstract: An object is to provide a lithium ion battery excellent in input/output characteristics, cycle life characteristics, and safety. The lithium ion battery is a lithium ion battery including, in a battery container, an electrolyte solution and an electrode group in which a positive electrode and a negative electrode are disposed through a separator. A lithium-nickel-manganese-cobalt composite oxide having a layered crystal structure is contained as a positive electrode active material, an easily graphitizable carbon is contained as a negative electrode active material, a weight of the easily graphitizable carbon heated at 550° C. in dry air flow in thermogravimetric analysis is equal to more than 75% of a weight of the easily graphitizable carbon heated at 25° C. therein, and a weight of the easily graphitizable carbon heated at 650° C. therein is equal to or less than 20% of the weight of the easily graphitizable carbon heated at 25° C. therein.

Abstract: A speaker driving device including a setting part configured to set at least one parameter stipulating an equivalent circuit of a first speaker unit as a first parameter, a first calculator configured to change a first frequency response based on the first parameter, the changed first frequency response being applied to an input signal, the first calculator configured to perform amplitude control on a signal obtained with the changed first frequency response to output a first calculation signal, and a driving signal generator configured to generate a drive signal for driving a speaker unit based on the first calculation signal.

Abstract: A speaker driving device including a setting part setting at least one parameter defining an equivalent circuit of a first speaker unit as a first parameter; a first calculator configured to change a first frequency response based on the first parameter, the changed first frequency response being applied to an input signal; and a driving signal generator configured to generate a drive signal for driving a speaker unit based on a first calculation signal, the first calculation signal being obtained by applying the changed first frequency response to the input signal.

Abstract: Provided are a silicone wound dressing, a method of manufacturing thereof and a method of using thereof. The silicone wound dressing has a silicone dressing base material and an amorphous carbon coating formed on the silicone dressing base material. The amorphous carbon coating is formed by subjecting the silicone dressing base material to a plasma polymerization in a plasma device under an atmosphere of a mixed gas comprising a hydrocarbon gas and an oxygen-containing gas. The silicone wound dressing has excellent oxygen permeability and is less likely to adhere to the wound. The speedy recovery of the wound is promoted by covering the wound with the silicone wound dressing.

Abstract: A speaker control device in one embodiment includes an oscillator connected in parallel with a drive circuit for driving a speaker, the oscillator changing an oscillation frequency according to a voltage, and a control circuit detecting a variation in the oscillation frequency of the oscillator, and adjusting an amount of current supplied to the speaker by the drive circuit in the case where a variation in the voltage exceeds an allowable value.

Abstract: An object is to provide a lithium ion battery excellent in input/output characteristics, cycle life characteristics, and safety. The lithium ion battery is a lithium ion battery including, in a battery container, an electrolyte solution and an electrode group in which a positive electrode and a negative electrode are disposed through a separator. A lithium-nickel-manganese-cobalt composite oxide having a layered crystal structure is contained as a positive electrode active material, an easily graphitizable carbon is contained as a negative electrode active material, a weight of the easily graphitizable carbon heated at 550° C. in dry air flow in thermogravimetric analysis is equal to more than 75% of a weight of the easily graphitizable carbon heated at 25° C. therein, and a weight of the easily graphitizable carbon heated at 650° C. therein is equal to or less than 20% of the weight of the easily graphitizable carbon heated at 25° C. therein.

Abstract: Provided is a digital acoustic system comprising: a ?? modulator that modulates a digital input signal and outputs a digital signal; a post-filter that is connected to the ?? modulator and which performs mismatch shaping to convert the digital signal; a parallel-serial converter that converts the digital signal converted by the post-filter into a digital signal which is serially transmitted; a serial-parallel converter that restores the digital signal converted by the parallel-serial converter; and a drive circuit which receives the digital signal restored by the serial-parallel converter, and drives drive elements to convert the signal into an analog audio signal.

Abstract: Provided is a selection device including an acquisition section for acquiring digital selection signals, and an output section for outputting selection signals to respective unit cells, each unit cell capable of being commanded to output the value zero. The selection device is characterized in that: each selection signal is for commanding the unit cell to output a value corresponding to that selection signal; the sum of the values to be output as commanded by the respective selection signals, which are output to the respective unit cells, is a value determined in association with the digital selection signal; and if the output corresponding to the digital selection signal is the value zero, then selection signals each commanding to output a non-zero value (N) are output to some of the unit cells.