Pioneer Corporation

Pioneer Electronic Corporation

Hitachi, Ltd.

Sharp Kabushiki Kaisha Corporation

Sanyo Electric Co., Ltd.

Jvc Kenwood Corporation

Kyoichi Terao

Hiroshi Iwamura

Itaru Takemura

Kenichiro Tada

Yoshihiro Okada

Junji Shiokawa

Toshio Suzuki

Hidehiro Ishii

Hiroshi Nagata

Akira Shimizu

Makoto Matsumaru

Yuichi Kanai

Yukitaka Shimizu

Yasuaki Yamada

Yuji Izuru

Hideto Endo

Shigeru Adachi

A server device efficiently acquires information of a surrounding area of a movable body for updating map information while suppressing communication load. Condition information indicating a condition of autonomous driving is received from a first movable body capable of autonomous driving based on a state of a surrounding area of the first movable body and a map, and a request for state information is transmitted to a second movable body capable of transmitting the state information indicating a state of a place where the first movable body has moved, and when the received condition information indicates that the autonomous driving has been possible, transmission of the request is prevented.

Server device, terminal device, communication system, information reception method, information transmission method, information reception program, information transmission program, recording medium, and data structure

A first acceleration sensor is arranged on a crank mounted to a crankshaft so as to be located at a position away from the crankshaft by a distance r, and the first acceleration sensor detects acceleration ain a direction parallel to a longitudinal direction of the crank. A second acceleration sensor is arranged on the crank mounted to the crankshaft so as to be located at a position away from the crankshaft by a distance rdifferent from the distance r, and the second acceleration sensor detects acceleration ain a direction parallel to the longitudinal direction of the crank. A measurement module control part calculates information regarding a rotation angle of the crank based on a, a, r, and r

Rotation angle detection device

A power transmission system () is provided with a power transmitting apparatus () having a power transmission coil () and a power receiving apparatus () having a power reception coil () disposed at a distance from the power transmission coil, and transmits and receives electric power in a wireless manner between the power transmission coil and the power reception coil. The power transmission system is provided with: a foreign body detecting device () configured to detect a foreign body positioned in surroundings of the power transmission coil and the power reception coil and detect a relative position of the detected foreign body to the power transmission coil or the power reception coil; and a power controlling device () configured to control the power transmitting apparatus to control the transmitted and received electric power according to the detected relative position.

Power transmission system and method, power transmitting apparatus and power receiving apparatus

A communication terminal () is provided with: an obtaining device () for presenting the host name of the another end terminal () to an address resolution server (), thereby obtaining a second address bundle () indicating a network route from a global network (), to which the address resolution server belongs, to the another end terminal; a recognizing device () for recognizing a positional relation on the network between the communication terminal and the another end terminal, on the basis of the second address bundle and a first address bundle () indicating a network route from the global network, to which the address resolution server belongs, to the communication terminal; and a determining device () for determining a host address which is used for the communication with the another end terminal from among the second address bundle, on the basis of the recognized positional relation.

Communication terminal, address resolution server, and computer program

There is provided an information recording medium that reduces operation of shifting information backward or putting information forward closer together upon recording/deleting/dividing information to facilitate processes of recording/deleting/dividing information. An information recording medium records Programscomposed of image data, etc., UPGRthat refers to at least a part of the Programs, PGRGthat refers to the UPGR, a PGRM that collectively records the UPGRand reference information thereof, and a PGRGM that collectively records the PGRGand reference information thereof. When recording the UPGR, the information recording medium refers to the reference information contained in the PGRM, and when invalid reference information or reference information giving no reference to any UPGRis present, records the UPGRusing the reference information. When recording the PGRG, the information recording medium refers to the reference information contained in the PGRGM, and when invalid reference information or reference information giving no reference to any PGRGis present, records the PGRGusing the reference information.

Information recording/reproduction device and information recording medium

In a content delivery method in a P2P network, a node managing a content causes a downstream node to manage a volume of a divided content; this volume is according to a situation of the downstream node (for example, a line speed to which a node is connected). A node managing a content holds, as management information, partial information of the divided content managed by its own node, and location information indicative of a location at which a content itself is presented. Next, when a content transfer request is sent to a node managing a content, the node accesses a content holding node in accordance with the held location information, downloads a volume of a divided content indicated by the partial information, and uploads the volume of the divided content to a node that sends the content transfer request.

Content delivery apparatus, content delivery method, and content delivery program

A network configuration management method has a step of sequentially propagating a network ticket that a network configuration monitoring node has issued to each of a predetermined number of nodes (predetermined number of nodes&#x3c;number of all nodes) from the node to the node so as to cover all nodes of a P2P network, a step in which each of the nodes having received the network ticket plays a role to investigate the node adjacent to its own node, creates information on a network configuration around its own node, and transmits the information on the network configuration created by each of the nodes to the network configuration monitoring node. Furthermore, in the network configuration management method, the network configuration monitoring node grasps the configuration of the entire P2P network from the collected information on the network configuration.

Network configuration investigating device, network configuration investigating program, network configuration management method, and network configuration management system

In a content delivery method in a P2P network, a content publishing node divides a publish content according to a situation of each downstream node adjacent thereto, and causes each downstream node to hold a divided content, and a content downloading node simultaneously downloads in parallel the divided contents from the plurality of downstream nodes. When a plurality of pieces of tag information on a plurality of divided contents of a same content is received form a downstream node, the plurality of pieces of tag information are merged to be distributed in upstream nodes.

To provide an information record controlling apparatus which can move and record recorded information more efficiently, and more efficiently administrate move and record. In the information recording and reproducing apparatus, CPUadministrates and controls recorded information, which is constituted by a plurality of information units. Further, the CPUcontrols move and record of the recorded information, which are carried out with respect to each of the information units, on the basis of reproduction able and disable information with respect to each of the information units.

Information record controlling apparatus, information record controlling method, information reproduction controlling apparatus, information reproduction controlling method, information recording medium, information record controlling program, and information reproduction controlling program

An information recording apparatus include: a processing unit for processing recording information to be recorded and for generating processed information; a storage unit for temporarily storing the processed information; a recording unit for recording the processed information onto an information storage medium; a position storing unit for storing, at a time of interrupting recording of the processed information, an interruption storage position which is a storage position in the storage unit of the processed information corresponding to a timing at which interruption is instructed; an interrupting unit for interrupting recording of the processed information after storing the interruption storing position; and a restart unit for restarting the recording of the processed information based on the stored interruption storage position.

Information recording apparatus

An information recording apparatus for recording digital information inputted from outside onto an information storage medium, includes: a multiplexing unit for multiplexing the digital information by a plurality of window functions to generate a plurality of multiplied digital information, each of the plurality of window functions having a fade-out time-axis characteristic and having overlaps with neighboring window functions on time axis; a recording unit for recording the plurality of multiplied digital information corresponding to the respective window functions; an ending unit for changing ending multiplexed digital information which are the multiplied digital information corresponding to the window function including a recording end timing of the digital information to zero information, and for ending recording the digital information after recording the zero information onto the information storage medium in place of the ending multiplexed digital information.

Apparatus and method of recording information

A band-division signal processing system includes a coding unit and a decoding unit. The coding unit includes: an extracting unit for extracting a part of an original signal to produce a partial band signal; a first quantizer for quantizing the partial band signal to produce a quantized partial band signal; a subtracter for subtracting the quantized partial band signal from the original signal to produce a differential signal; and a first output unit for outputting the partial band signal and the differential signal. The decoding unit includes: a second quantizer having an identical configuration to the first quantizer and for quantizing the partial band signal outputted from the first output unit to produce the quantized partial band signal; an adder for adding the quantized partial band signal produced by the second quantizer to the differential signal outputted from the first output unit to produce the original signal; and a second output unit for outputting the original signal produced by the adder.

Band-division signal processing system

An over-sampling device is provided for double over-sampling the input signal and for outputting as a sampling signal. The sampling signal is filtered at one of conversion rates of 147/160, 160/147, and 1/1 by using a prototype filter, based on the first sampling frequency and the second sampling frequency, and a filtering signal is produced. The filtering signal is filtered by a low pass filter having a predetermined cutoff frequency band, and a low frequency signal is produced. A down-sampling device is provided for down-sampling the low frequency signal by one half.

Growing community of inventors

Tokyo, Japan

Kyoichi Terao