Abstract: An infrared-sensor filter member includes an optical filter disposed in an opening portion of a second member and a first member. The infrared-sensor filter member includes a recess portion formed from a light-incident surface of the optical filter and the first member. At least a part of a bottom surface of the recess portion is formed by the light-incident surface and side walls of the recess portion, which are formed by the first member.

Abstract: A magnetic sensor of the present invention includes a Hall-effect sensor configured to detect magnetism and an IC being configured to drive the Hall-effect sensor and perform signal processing therefor and having two or more metal interconnection layers. The Hall-effect sensor and the IC are electrically connected to each other via wire interconnections and sealed in one package. Metal interconnections on the IC to input output voltage of the Hall-effect sensor to a signal processing unit of the IC have a grade-separation junction portion in order to suppress an induced electromotive force which a change in the magnetic flux density externally applied generates at output terminals of the Hall-effect sensor, the wire interconnections connected to output electrode pads of the Hall-effect sensor, and the metal interconnections to input the output voltage of the Hall-effect sensor to the signal processing unit of the IC.

Abstract: An infrared-sensor filter member includes an optical filter disposed in an opening portion of a second member and a first member. The infrared-sensor filter member includes a recess portion formed from a light-incident surface of the optical filter and the first member. At least a part of a bottom surface of the recess portion is formed by the light-incident surface and side walls of the recess portion, which are formed by the first member.

Abstract: A magnetic sensor of the present invention includes a Hall-effect sensor configured to detect magnetism and an IC being configured to drive the Hall-effect sensor and perform signal processing therefor and having two or more metal interconnection layers. The Hall-effect sensor and the IC are electrically connected to each other via wire interconnections and sealed in one package. Metal interconnections on the IC to input output voltage of the Hall-effect sensor to a signal processing unit of the IC have a grade-separation junction portion in order to suppress an induced electromotive force which a change in the magnetic flux density externally applied generates at output terminals of the Hall-effect sensor, the wire interconnections connected to output electrode pads of the Hall-effect sensor, and the metal interconnections to input the output voltage of the Hall-effect sensor to the signal processing unit of the IC.

Abstract: A magnetic flux detection unit and a rectangular solid magnet are provided. The magnetic flux detection unit includes one or more pairs of Hall sensors, each pair having two Hall sensors arranged on a substrate. The solid magnet is arranged movably in a direction in a plane parallel to the substrate. Each pair of two Hall sensors is arranged on the substrate so that a line connecting the centers of magnetism sensing sections of each pair of two Hall sensors is orthogonal to a movement direction of the magnet. A tetragon has a long side and a short side and the long side has a inclination angle to the line connecting the centers of magnetism sensing sections of the each pair of two Hall sensors. The magnet has one N-pole and one S-pole separately magnetized in orthogonal to the substrate on which the Hall sensors are arranged.

Abstract: A magnetic flux detection unit and a rectangular solid magnet are provided. The magnetic flux detection unit includes one or more pairs of Hall sensors, each pair having two Hall sensors arranged on a substrate. The solid magnet is arranged movably in a direction in a plane parallel to the substrate. Each pair of two Hall sensors is arranged on the substrate so that a line connecting the centers of magnetism sensing sections of each pair of two Hall sensors is orthogonal to a movement direction of the magnet. A tetragon has a long side and a short side and the long side has a inclination angle to the line connecting the centers of magnetism sensing sections of the each pair of two Hall sensors. The magnet has one N-pole and one S-pole separately magnetized in orthogonal to the substrate on which the Hall sensors are arranged.

Abstract: A map drawing apparatus has a map information reading section, a level extracting section, and a map information processing section. The map information reading section reads map information. The level extracting section extracts a level of a spectrum over a predetermined frequency range from a signal of input sound. The map information processing section processes the form (height, color, shape) of an object (a building, a cloud in the background, or the like) contained in the map information read by the map information reading section, into map information dynamically changed in cooperation with the spectrum extracted by the level extracting section. The map information processing section converts the processed map information into an image signal that can be displayed on a display device.

Abstract: A navigation system for displaying guidance in accordance with map data is provided. The navigation system includes a landmark displaying device for displaying structures corresponding to the map data as landmarks. The landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that it would face to a road nearby.

Abstract: A map drawing apparatus has a map information reading section, a level extracting section, and a map information processing section. The map information reading section reads map information. The level extracting section extracts a level of a spectrum over a predetermined frequency range from a signal of input sound. The map information processing section processes the form (height, color, shape) of an object (a building, a cloud in the background, or the like) contained in the map information read by the map information reading section, into map information dynamically changed in cooperation with the spectrum extracted by the level extracting section. The map information processing section converts the processed map information into an image signal that can be displayed on a display device.

Abstract: A navigation system for displaying guidance in accordance with map data is provided. The navigation system includes a landmark displaying device for displaying structures corresponding to the map data as landmarks. The landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that it would face to a road nearby.