Sharp Kabushiki Kaisha Corporation

Tdk Corporation

Memory-tech Corporation

Atsushi Etoh

Shigemi Maeda

Yoshihisa Adachi

Hideharu Tajima

Tetsuya Hayashi

Yasuhiro Harada

Masaki Yamamoto

Hirohisa Yamada

Hiroyasu Inoue

Go Mori

Toshihiko Sakai

Masaki Aoshima

Isamu Kuribayashi

Takayuki Naka

Tetsuya Okumura

Masahito Konishi

Ikuo Nakano

Mitsuo Ishii

Teruhisa Kotani

Takashi Arimoto

Hiroaki Ashiwa

Hiroyasu Ueno

Ryo Kojima

An autonomous traveling apparatus includes a body, a travel control unit that controls a drive member to cause the autonomous traveling apparatus to travel, an obstacle detection unit that detects an object located within a predetermined obstacle sensing area, a restart switch disposed on the body and operable to cause the autonomous traveling apparatus to resume traveling from a stop mode, and a restart control unit that, when an operation of activating the restart switch is performed by a user, causes the obstacle detection unit to resume obstacle detection so as not to detect the user as an obstacle until the user who has performed the operation of activating the restart switch moves out of the obstacle sensing area, and causes the autonomous traveling apparatus to resume traveling.

Autonomous traveling apparatus

An autonomous traveling apparatus includes: an apparatus main body; an autonomous traveling control portion which causes the apparatus main body to autonomously travel with a designated traveling parameter; a boom provided on the apparatus main body; a lifting and lowering control portion which lifts and lowers a position of one end of the boom to a designated height on the apparatus main body; and a state control portion which controls the autonomous traveling control portion so that the traveling parameter is limited based on the position of the one end of the boom or controls the lifting and lowering control portion so that the position of the one end of the boom is limited based on the traveling parameter. With such a configuration, provided is the autonomous traveling apparatus capable of safely performing autonomous traveling, and lifting and lowering of the one end of the boom.

In an autonomous traveling apparatus, a normal traveling area and a deceleration area are set for a monitoring area in an area setting unit. A speed control unit limits a traveling speed of an apparatus main body on the basis of the monitoring area set in the area setting unit and a distance from the apparatus main body to an obstacle within the monitoring area if the obstacle present within the monitoring area is detected. If the obstacle is a movable body, an area change unit changes the deceleration area within the monitoring area that is set in the area setting unit to a deceleration area for movable body. This configuration makes it possible to support even a case where an obstacle is a movable body, in limiting the traveling speed in response to obstacle detection.

The reliability of a super-resolution optical information recording medium whose capacity can be increased is increased. On an optical information recording medium () according to the present invention, a content is recorded as a pit group formed such that an average length Tm [nm] of a minimum mark length and a minimum space length becomes shorter than an optical system resolution limit, and reading speed information designating a reading speed in a range from 2&#xd7;(4.92&#xd7;Tm/149) [m/s] to less than (10000/60)&#xd7;2&#xd7;&#x3c0;&#xd7;(24/1000) [m/s] is recorded as a reading speed for reproducing the content.

Optical information recording medium, reproduction apparatus, and reproduction method

A display control device () disclosed includes (i) a display/non-display video image determining section () that determines, on the basis of (i) video image information about a video image displayed by a display device () and (ii) viewing mode information indicative of a viewer's desired mode of viewing a video image, whether the video image displayed by the display device () is a display video image or a non-display video image and (ii) a shutter operation control section () that closes a right-eye shutter and a left-eye shutter of a liquid crystal shutter () when a video image determined as a non-display video image, which is unnecessary for the viewing mode and which is thus not to be displayed to the viewer, is displayed by the display device (). The display control device () thus closes the right-eye shutter and the left-eye shutter of the liquid crystal shutter () when a non-display video image is displayed by the display device (). This arrangement allows each viewer to view a video image in a mode suitable for the viewer.

Display control device, display control method, display control program, computer-readable recording medium, recording/playback device equipped with abovementioned display control device, speech output device, and recording/playback device equipped with speech output device

Recording mark forming method utilizing a device including a laser and a laser drive carried by a pickup having a movement drive wherein a control controls the drives to irradiate a recording medium with laser pulse sequences to form recording marks having recording mark lengths between a predetermined and maximum lengths, a top section, a last section including a cooling period, and an intermediate period. Heat of mark front edges is controlled by top section recording parameters classified according to recording mark lengths and recording parameters of first through maximum recording mark lengths are classified into a same group. Heat of mark rear edges is controlled by cooling start positions for cooling periods classified according to recording mark lengths. Cooling start positions for a second predetermined mark length through the maximum mark length are classified into a same group. The second mark length is longer than the first mark length.

Reproduced signal quality judging method

A recording parameter setting device setting parameters of pulse sequences forming recording marks on recording media. The device includes a storage section storing first and second look-up tables, and a recording parameter setting section for obtaining from the tables and setting parameters corresponding to recording information. The pulse sequences form at least marks equal to or longer than a first predetermined length but not longer than a maximum mark length, and include top and last sections. Also, the first lookup table stores parameters for top sections that control heat of front edges of marks classified into a same group. The second lookup table stores parameters for last sections for controlling heat of rear edges that are equal to or longer than a second predetermined recording mark length, that is longer than the first predetermined recording mark length, through the maximum recording mark length and classified into a same group.

Information reproducing device

An optical information recording medium () includes on a substrate (), a ROM layer (), a RE layer (), an intermediate layer () separating the ROM layer () and the RE layer (), and a light transmitting layer () provided farthest from the substrate (). The RE layer () is an information recording layer provided most farthest from the light transmitting layer (), and is a recording layer of BCA recorded in a format easily determinable as compared to an information recording format used in the ROM layer (), and antifouling property of a surface of the light transmitting layer () is set based on the RE layer (). This makes it easy for the recording and reproducing apparatus to confirm a disc type, allows for sharing one recording and reproducing apparatus with other types of optical discs, and simplifies the disc production. Furthermore, an optical information recording medium is accomplished, in which outdated data on the ROM layer is replaced by recording, on the RE layer, updated data obtained while Internet connection can be established.

Optical information recording medium

An invention disclosed includes a layer number obtaining section () for determining which information storage layer (L) has been accessed and a layer type identifying section () for identifying a type of the information storage layer (L) determined by the layer number obtaining section (). With the configuration, even in a case where an information recording and reproducing apparatus accesses an information storage layer different from an intended information storage layer by false operation or the like, it is still possible to dissolve mismatching between a recording or reproduction control scheme being set up and a recording or reproduction control scheme suitable for the information storage layer thus accessed.

Information recording and reproducing apparatus, program for controlling same, computer-readable storage medium, method for controlling information recording and reproducing apparatus, and information storage medium

There are provided at least a first information storage areaA and a second information storage areaA. The first information storage areaA contains, in advance, an OS or mpeg data. The second information storage areaA is either write-once or rewriteable and available for writing OS update information or movie correction information. The configuration enables easy backup and restoration of software, content, and various information including update information for use by the software and content with reduced user time and workload.

Information storage medium, information read/write device, coordination system, control program for the device or system, and computer-readable storage medium

A recording parameter setting device includes a trial recording parameter setting section and a reproduced signal quality judging section. The trial recording parameter setting section sets a trial recording parameter capable of controlling a heat level at least rear edges of recording marks, classified in accordance with recording mark lengths, and grouping a predetermined recording mark length or longer into a same group. The reproduced signal quality judging section judges whether a trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality. If the signal quality is unsatisfactory, the trial recording parameters of the predetermined recording mark length or longer are regrouped and trial recording is carried out again until the reproduced signal satisfies the predetermined signal quality. Then, the reproduced signal quality judging section sets the trial recording parameter as the recording parameter.

Recording/reproducing device including recording parameter setting device, and nontransitory computer-readable medium storing program for causing computer to operate as the same

Recording parameter setting device and method using pulse sequences

A recording/reproducing device includes a laser and a laser drive carried by a pickup having a drive for movement. A control controls the drives to irradiate the recording medium with laser pulse sequences forming recording marks having recording mark lengths between a predetermined and maximum lengths, a top section, a last section including a cooling period, and an intermediate period. Heat of mark front edges is controlled by recording parameters for top sections that are classified according to recording mark lengths and recording parameters of the first through the maximum recording mark lengths are classified into a same group. Heat of mark rear edges is controlled by cooling start positions for cooling periods classified according to recording mark lengths. Cooling start positions for a second predetermined mark length through the maximum mark length are classified into a same group. The second mark length is longer than the first mark length.

Recording/reproducing device and method using pulse sequences, and information recording medium

A recording parameter setting device including a trial recording parameter setting section and a reproduced signal quality judging section. The reproduced signal quality judging section judges whether or not a reproduced signal obtained by reproduction of the trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality. If no, the recording parameters of the predetermined recording mark length or longer are further classified into detailed groups and trial recording is carried out again. If the reproduced signal satisfies the predetermined reproduced signal quality, the reproduced signal quality judging section sets the trial recording parameters as a recording parameter. This makes it possible to form a recording mark capable of surely providing a good reproduced signal quality while the number of recording parameters to be used is reduced.

Recording parameter setting device, program thereof, computer-readable recording medium containing the program, information recording medium, recording/reproducing device, and recording parameter setting method

Growing community of inventors

Tenri, Japan

Atsushi Etoh