Abstract: Provided is a velocity calculating device including a vertical acceleration detector that detects a vertical acceleration generated due to an undulation of a contact surface; a horizontal angular velocity detector that detects a horizontal angular velocity generated due to the undulation; a correlation coefficient calculator that calculates a correlation coefficient that represents a degree to which an acceleration in the direction of travel is mixed into the vertical acceleration in accordance with an attachment angle; a true vertical acceleration detector that calculates a true vertical acceleration by subtracting the acceleration in the direction of travel mixed into the vertical acceleration from the vertical acceleration, the acceleration in the direction of travel mixed into the vertical acceleration being calculated using the correlation coefficient; and a velocity calculator that calculates a velocity of a moving body on the basis of the true vertical acceleration and the horizontal angular velocity.

Abstract: An information processing apparatus that obtains content data and first position information corresponding to the content data; obtains second position information corresponding to a second person having a predetermined relationship with a first person associated with creating the content data; and associates identification corresponding to the second person with the content data based on a predetermined relationship between the first position information and the second position information.

Abstract: Provided is an information processing apparatus including an acquisition unit configured to acquire a pitch of walking from oscillation detection data, and a determination unit configured to determine whether or not a user is moving at a velocity faster than normal based on a difference between the pitch acquired by the acquisition unit and a pitch during normal walking which is calculated based on the oscillation detection data of a past.

Abstract: Provided is an information processing apparatus including an acquisition unit configured to acquire a pitch of walking from oscillation detection data, and a congestion determination unit configured to determine a congestion degree based on a difference between the pitch acquired by the acquisition unit and a pitch during normal walking which is calculated based on the oscillation detection data of a past.

Abstract: An information processing apparatus that includes an interface that transmits identification information corresponding to a first person associated with the information processing apparatus to another information processing apparatus when content is generated at the information processing apparatus, and receives information indicating a predetermined relationship between the first person and a second person associated with the another information processing apparatus. The information processing apparatus further comprising a processor that associates identification corresponding to the second person with the content based on the predetermined relationship between the first person and the second person.

Abstract: There is provided an information processing apparatus including a first acquirer that acquires first behavior information, the first behavior information being detected by analysis of an image related to an object and indicating behavior of the object, a second acquirer that acquires second behavior information, the second behavior information being detected from an output of a sensor in a terminal device carried by or attached to the object and indicating the behavior of the object, and a matching unit that specifies a relationship between the object and the terminal device by matching the first behavior information to the second behavior information.

Abstract: There is provided an information processing apparatus including a positional relationship information acquirer that acquires information indicating a position relationship between a first user and a second user, a nearness determiner that determines whether or not the first user and the second user are near each other, on the basis of the information indicating the position relationship, and a contact manager that sorts, on the basis of a result of the determination, a contact list which is provided to the first user and which includes contact information for the second user.

Abstract: A navigation apparatus includes: a section that calculates a mobile object's acceleration in the direction of the motion, based on the mobile object's speed calculated from information received from a satellite; a section that calculates lateral acceleration whose direction is perpendicular to the mobile object's motion, based on the mobile object's speed and direction calculated from information received from the satellite; an acceleration sensor that observes motion acceleration of the mobile object and gravity acceleration; a section that calculates an altitude difference of road based on an atmospheric pressure value supplied from a barometric sensor; a section that calculates an inclination angle of the road in the direction of the motion, based on the altitude difference and a travel distance corresponding to the mobile object's speed; and a section that calculates an attachment angle of the acceleration sensor with respect to the mobile object by using a multidimensional function formula.

Abstract: There is provided an information processing apparatus including a traveling pitch acquiring section configured to acquire a current traveling pitch, and a speed acquiring section configured to acquire a current traveling speed extracted from an association table showing correspondence between a traveling pitch and a traveling speed based on the current traveling pitch.

Abstract: Provided is a velocity calculating device including a vertical acceleration detector mounted on a moving body that travels on a predetermined travel surface, the vertical acceleration detector detecting an acceleration in a vertical direction generated due to an undulation of the travel surface; a horizontal angular velocity detector mounted on the moving body, the horizontal angular velocity detector detecting an angular velocity around a horizontal axis that is perpendicular to a direction of travel of the moving body, the angular velocity being generated due to the undulation of the travel surface; a velocity calculator that calculates a velocity of the moving body in the direction of travel of the moving body on the basis of the acceleration in the vertical direction and the angular velocity around the horizontal axis; and a velocity corrector that corrects the velocity in accordance with the velocity.

Abstract: There is provided an information processing apparatus including a satellite positioning unit that performs positioning based on a positioning signal received from a positioning satellite, an environment information acquiring unit that acquires environment information unique to a current location, a reception information acquiring unit that acquires reception information indicating a state of the positioning signal at the current location based on the environment information, and an operation condition setting unit that sets an operation condition of the satellite positioning unit based on the reception information.

Abstract: Provided is an information processing apparatus including an image acquisition unit for acquiring an image that includes a target a user is paying attention to, an access information acquisition unit for acquiring access information assigned with a time-limited access right to public information that is associated with the target in the image, a public information acquisition unit for acquiring the public information using the access information, and a display control unit for controlling display of the public information.

Abstract: There is provided an information processing apparatus including an extraction section which extracts, out of pieces of detection information each including position information and motion detection data acquired by terminal devices of respective users, detection information of a user on a specific train, based on the position information, and an estimation section which estimates distribution of people on the train based on the motion detection data included in the detection information extracted by the extraction section.

Abstract: A navigation apparatus includes: a section that calculates, in accordance with a predetermined calculation method, a current speed of a mobile object at predetermined intervals, based on the mobile object's initial speed detected at the start of the calculation; a section that calculates a travel distance the mobile object has traveled so far since the start of the calculation; a section that calculates, based on the calculation method, a current speed error range of the current speed by using an initial speed error range of the initial speed; a section that calculates a travel distance error range of the travel distance by using the current speed error range; a section that evaluates, based on the travel distance error range, the reliability of the travel distance; and a section that performs a navigation process corresponding to the reliability of the travel distance.

Abstract: A navigation apparatus includes: a main unit to be attached to a mobile object through a base section, the main unit detecting a current position of the mobile object based on positioning information; a section that calculates acceleration applied to the mobile object based on the mobile object's speed; an acceleration sensor that observes acceleration applied to the main unit; a section that calculates an attachment inclination of the acceleration sensor with respect to the mobile object; a section that estimates, while the positioning information is not being supplied, a speed and position of the mobile object; a section that detects whether the main unit is mounted on the base section; and a section that forces the above section to stop estimating the speed when the main unit is not mounted on the base section.

Abstract: Provided is a velocity calculating device including a vertical acceleration detector mounted on a moving body that travels on a predetermined travel surface, the vertical acceleration detector detecting an acceleration in a vertical direction generated due to an undulation of the travel surface; a horizontal angular velocity detector mounted on the moving body, the horizontal angular velocity detector detecting an angular velocity around a horizontal axis that is perpendicular to a direction of travel of the moving body, the angular velocity being generated due to the undulation of the travel surface; a velocity calculator that calculates a velocity of the moving body in the direction of travel of the moving body on the basis of the acceleration in the vertical direction and the angular velocity around the horizontal axis; and a velocity corrector that corrects the velocity in accordance with the velocity.

Abstract: Provided is a velocity calculating device including a vertical acceleration detector that detects a vertical acceleration generated due to an undulation of a contact surface; a horizontal angular velocity detector that detects a horizontal angular velocity generated due to the undulation; a correlation coefficient calculator that calculates a correlation coefficient that represents a degree to which an acceleration in the direction of travel is mixed into the vertical acceleration in accordance with an attachment angle; a true vertical acceleration detector that calculates a true vertical acceleration by subtracting the acceleration in the direction of travel mixed into the vertical acceleration from the vertical acceleration, the acceleration in the direction of travel mixed into the vertical acceleration being calculated using the correlation coefficient; and a velocity calculator that calculates a velocity of a moving body on the basis of the true vertical acceleration and the horizontal angular velocity.

Abstract: To accurately detect a zero gravity offset in an acceleration sensor. As an embodiment of the present invention, in the case where position information can be obtained from a GPS processing section, a velocity detecting unit performs an operation according to Expression (15), using real detected acceleration ?Gr that was actually obtained from the acceleration sensor, vehicle acceleration ?P based on the position information, distance Dm, an amount of height change Dh based on pressure PR, and gravity acceleration g. Therefore, offset acceleration ?o can be accurately calculated, and an acceleration detection signal can be converted into detected acceleration ?G with high accuracy, based on a zero gravity offset value Vzgo by that the above offset acceleration ?o was converted.

Abstract: As an embodiment of the present invention, in a navigation system using an acceleration sensor, when position information cannot be obtained from a GPS processing section, a velocity detecting unit performs an operation using detected acceleration ?G, a measurement time mt, a velocity V0 at a time t0, gravity acceleration g and an amount of height change Dh, according to Expression (11). By using the relationship among a gravity acceleration component gf, the gravity acceleration g, the amount of height change Dh and distance Dm shown in Expression (4), the gravity acceleration component gf can be offset by the amount of height change Dh. Therefore, velocity V can be calculated with high accuracy without receiving the effect of the gravity acceleration component gf.

Abstract: Disclosed herein is an azimuth determination apparatus including: a horizontal-direction acceleration detection section installed in a movable body as a section configured to detect an acceleration caused by a centrifugal force, which is generated when said movable body is making a turn, as an acceleration oriented in a horizontal direction perpendicular to the traveling direction of said movable body. The apparatus further includes an azimuth determination section configured to produce a result of determination as to whether said movable body is making a right or left turn on the basis of said detected acceleration oriented in said horizontal direction and threshold values.