Pioneer Corporation

Ryoji Noguchi

Tomoaki Iwai

Akira Shimizu

Manabu Nohara

Makoto Matsumaru

Takayuki Akimoto

Itaru Takemura

Yusuke Soga

Koichi Ishitoya

The present invention identifies a danger spot effectively. In a navigation devicea danger spot identification unitidentifies a jump-out danger spot on the basis of past information which is acquired by a past information acquisition unitand indicates a situation of a jump-out accident in the past, and surrounding information which is acquired by a surrounding information acquisition unitand indicates a surrounding situation of a vehicle. Here, the past information includes surrounding facility identification information (information related to an identification planimetric feature) used for identifying a jump-out danger spot and information related to a jump-out object. As a result, the danger spot identification unitcan identify a danger spot of a jump-out which can occur due to a planimetric feature (a facility) in a jump-out accident. Therefore, the navigation devicecan identify a jump-out danger spot effectively.

Dangerous place identification device, map data, dangerous place identification method, and program

An error detecting apparatus includes: a reading device obtaining an image read signal by reading a two-dimensional code pattern, which includes information blocks having information and boundary patterns, the information pattern including first/second pattern images (PIs) corresponding to first/second PIs, respectively, in each reading range corresponding to a size&#x2267;a size of the information block. A reference point detecting device detects an intersection in the boundary pattern, as a block reference point (P, Q), from the image read signal; an extracting device extracts the first/second information data (ID), based on one portion of the first PIs and the second PIs belonging to an ID extraction area determined according to a position of the block reference point; an error detecting device detects whether any error in the extracted first/second ID based on another portion of the first/second PIs belonging to another area other than the ID extraction area.

Error detecting apparatus and method, and computer program

A two-dimensional code pattern includes: a boundary pattern in which each of pixels in a group are set into a turn-on state or a turn-off state; a rotation detection pattern in which each pixel belonging to a group in each block is set into the turn-on state or the turn-off state by a light emitting pattern which can detect a rotational angle upon reading of the block; and an information pattern in which both of each pixel belonging to a first quadrant region in the block and each pixel belonging to a third quadrant region are set into the turn-on state or the turn-off state according to first information data and both of each pixel belonging to a second quadrant region and each pixel belonging to a fourth quadrant region are set into the turn-on state or the turn-off state according to second information data.

Two-dimensional code pattern, two-dimensional code pattern display device, and its reading device

Growing community of inventors

Fujimi, Japan

Ryoji Noguchi