Abstract: In a vehicle driving force control apparatus for controlling a driving force of the vehicle to achieve a target acceleration or a target vehicle speed, a running resistance estimating section calculates an estimated running resistance. A target acceleration modifying section modifies the target acceleration with the estimated running resistance and thereby decreases the target acceleration with increase in the estimated running resistance.

Abstract: An information apparatus controls a plurality of acoustic devices, each having at least one speaker unit. The apparatus has a memory storing first information corresponding to a number of speaker units of the corresponding acoustic device and the positions of their arrangement and a control unit configured to obtain second information corresponding to a position of a user and a number of channels to be used for reproducing a sound. The apparatus determines a combination of acoustic devices to be used for reproducing the sound by using the first and second information.

Abstract: In a vehicle driving force control apparatus for controlling a driving force of the vehicle to achieve a target acceleration or a target vehicle speed, a running resistance estimating section calculates an estimated running resistance. A target acceleration modifying section modifies the target acceleration with the estimated running resistance and thereby decreases the target acceleration with increase in the estimated running resistance.

Abstract: A network-based education system allowing an instructor to give a lecture to a plurality of students via a computer network, where the instructor can grasp the individual students' understanding levels at his/her discretion and take appropriate supplementary actions to the students in accordance with their respective understanding levels. A questionnaire conducting unit conducts a questionnaire to survey the understanding level of each student concerning a class he/she attends. In response to this, a questionnaire responding unit disposed in each student terminal returns an answer to the questionnaire according to response data entered by the student through a keyboard or other input devices. An understanding level data displaying unit, as part of the instructor terminal, collects the responses to the questionnaire returned from the student terminals and displays the distribution of students' understanding levels on a monitor screen of the instructor terminal.