Abstract: A hand cart capable of satisfying walking stabilization and facilitation of carrying articles according to a movement mode includes a control section operable, based on a rotational angle of a wheel section, to calculate a movement distance and a traveling direction, and, according to the traveling direction and the inclination angle, to execute an assist control of causing a wheel driving section to generate a driving torque for assist force or braking torque for braking force, wherein the control section is operable, based on a movement distance and the inclination angle, to calculate an angular change rate of the inclination angle, and, when a contact with a grip member is detected, and the angular change rate is equal to or less than a given threshold, to execute the assist control.

Abstract: A hand cart capable of satisfying walking stabilization and facilitation of carrying articles according to a movement mode includes a control section operable, based on a rotational angle of a wheel section, to calculate a movement distance and a traveling direction, and, according to the traveling direction and the inclination angle, to execute an assist control of causing a wheel driving section to generate a driving torque for assist force or braking torque for braking force, wherein the control section is operable, based on a movement distance and the inclination angle, to calculate an angular change rate of the inclination angle, and, when a contact with a grip member is detected, and the angular change rate is equal to or less than a given threshold, to execute the assist control.

Abstract: A contents reproduction system comprises: a server apparatus for storing contents obtained from external and a client apparatus by which the contents stored in the server apparatus is reproducible, wherein the server apparatus includes: a list preparing section for preparing a list of the contents stored in a contents storage section; and a list transmitting section for transmitting the contents list prepared by the list preparing section to the client apparatus, and the client apparatus includes: a list comparing section for comparing a first list stored in a list storage section and a second list newly obtained by a list obtaining section; an additional contents presentation section for presenting newly added content by a recognizable form based on a comparison result obtained by the list comparing section; a contents reproduction section for reproducing the content presented by the additional contents presentation section based on a control signal indicating reproduction.

Abstract: A contents reproduction system comprises: a server apparatus for storing contents obtained from external and a client apparatus by which the contents stored in the server apparatus is reproducible, wherein the server apparatus includes: a list preparing section for preparing a list of the contents stored in a contents storage section; and a list transmitting section for transmitting the contents list prepared by the list preparing section to the client apparatus, and the client apparatus includes: a list comparing section for comparing a first list stored in a list storage section and a second list newly obtained by a list obtaining section; an additional contents presentation section for presenting newly added content by a recognizable form based on a comparison result obtained by the list comparing section; a contents reproduction section for reproducing the content presented by the additional contents presentation section based on a control signal indicating reproduction.