Abstract: A display device includes a display in which an image is displayed; an output controller configured to display an image in the display; an imager configured to capture an image of an object present within a field of view of a user; a visually recognized object identifying unit configured to identify, based on the captured image, a type of the object present within the field of view of the user; and a visual recognition count identifying unit configured to, based on an identification result by the visually recognized object identifying unit, identify a visual recognition count indicating a number of times by which the user has looked at the object for each of the identified type, wherein the output controller is further configured to display in the display, based on the visual recognition count, a sub image including information on the object for each of the identified type.

Abstract: An information processing apparatus includes a behavior state detection sensor configured to detect behavior state information on a behavior state of a user; a behavior pattern information generation unit configured to generate behavior pattern information in a multidimensional space formed of coordinate axes based on the behavior state information to generate a group of spaces in each of which density of a behavior pattern information group as a collection of pieces of the behavior pattern information exceeds predetermined density; a behavior score calculation unit configured to calculate, as a behavior score, information on a size of the space including the behavior pattern information group; and a behavior pattern identification unit configured to identify, as a behavior pattern of the user, the behavior pattern information group in the space for which a value of the behavior score is equal to or larger than a predetermined value.

Abstract: A measurement apparatus includes a first biometric sensor configured to measure, as a biological signal, at least one of a brain wave signal and a pulse wave signal of a living body, a second biometric sensor configured to measure a respiratory rate of the living body per unit time, a differential operation unit configured to calculate a differential value of a periodic feature of the biological signal, an activity level analysis unit configured to analyze an activity level of an autonomic nerve of the living body based on the differential value, and an activity level correction unit configured to correct the activity level of the autonomic nerve by eliminating a component caused by respiration of the living body and included in the activity level of the autonomic nerve based on the respiratory rate of the living body per unit time.

Abstract: An information providing device includes a display unit configured to output a visual stimulus; a sound output unit configured to output an auditory stimulus; a sensory stimulus output unit configured to output a sensory stimulus; an environment sensor configured to detect position information of the information providing device; a biological sensor configured to detect cerebral activation degree of a user; an output selecting unit configured to select, based on the environment information, one of the display unit, the sound output unit, and the sensory stimulus output unit; an output specification deciding unit configured to decide on a reference output specification for adjusting outputs of the display unit, the sound output unit, and the sensory stimulus output unit, based on the position information; and a user state identifying unit configured to calculate an output specification correction degree for correcting the reference output specification, based on the cerebral activation degree.

Abstract: A low density parity check (LDPC) coding unit performs LDPC coding. An interleaving unit interleaves the LDPC-coded data, based on an array according to the number of bits that constitute a modulated symbol. A per-area division rearrangement unit divides to classify the interleaved data into a plurality of areas in a manner such that each area is formed by contiguous data and also outputs data, according to the number of bits that constitute the modulated symbol, by successively changing the areas. A symbol mapping unit generates the modulated symbol based on the data fed from the per-area division rearrangement unit.