Abstract: A ranging device includes: a frequency distribution generation unit that generates a frequency distribution of a light reception count value counted in each bin period; a frequency distribution holding unit that holds the frequency distribution generated by the frequency distribution generation unit; and a phase setting unit that sets a phase of start timings of the bin periods with respect to periodic light emission timings to an object. In a case where a first frequency distribution acquired by a first phase in a first period is held in the frequency distribution holding unit, and then a second frequency distribution acquired by a second phase in a second period next to the first period is held in the frequency distribution holding unit, at least a part of the first frequency distribution is erased from the frequency distribution holding unit until the holding of the second frequency distribution is completed.

Abstract: Provided is a surface-treated spinel particle (B) including a spinel particle (A) including a magnesium atom, an aluminum atom, and an oxygen atom and a surface treatment layer disposed at least a portion of the surface of the spinel particle (A). The surface treatment layer includes a surface-treating agent including an organic compound or a cured product of the surface-treating agent. The spinel particle (A) further includes molybdenum. The crystallite diameter of the [111] plane of the spinel particle (A) is 220 nm or more. Also provided are a method for producing the surface-treated spinel particle (B), a resin composition including the surface-treated spinel particle (B), and a molded article.

Abstract: Provided is a surface-treated spinel particle (B) including a spinel particle (A) including a magnesium atom, an aluminum atom, and an oxygen atom and a surface treatment layer disposed at least a portion of the surface of the spinel particle (A). The surface treatment layer includes a surface-treating agent including an organic compound or a cured product of the surface-treating agent. The spinel particle (A) further includes molybdenum. The crystallite diameter of the [111] plane of the spinel particle (A) is 220 nm or more. Also provided are a method for producing the surface-treated spinel particle (B), a resin composition including the surface-treated spinel particle (B), and a molded article.

Abstract: A apparatus holds schedule information managing, in association with each other, scheduled place information indicating a place where a user is scheduled to stay and scheduled time slot information indicating a time slot during which the user is scheduled to stay in the scheduled place. The apparatus holds, in association with the scheduled place information, a recognition dictionary used for recognizing an object being in a captured image of the scheduled place. The apparatus acquires time information indicating the current time, and an image of a place where the user stays at the current time. The apparatus specifies scheduled place information being held in association with scheduled time slot information indicating a time slot including the acquired information, and a recognition dictionary being held in association with the specified information. The apparatus recognizes an object in the acquired image using the specified dictionary to output information indicating a recognition result.

Abstract: A apparatus holds schedule information managing, in association with each other, scheduled place information indicating a place where a user is scheduled to stay and scheduled time slot information indicating a time slot during which the user is scheduled to stay in the scheduled place. The apparatus holds, in association with the scheduled place information, a recognition dictionary used for recognizing an object being in a captured image of the scheduled place. The apparatus acquires time information indicating the current time, and an image of a place where the user stays at the current time. The apparatus specifies scheduled place information being held in association with scheduled time slot information indicating a time slot including the acquired information, and a recognition dictionary being held in association with the specified information. The apparatus recognizes an object in the acquired image using the specified dictionary to output information indicating a recognition result.