Abstract: An inkjet recording device including a conveyance unit, a carriage, at least one preprocessing head, at least one ink head, and at least one postprocessing head, in which the conveyance unit conveys a recording medium in a prescribed conveyance direction, the carriage reciprocates along a main scanning direction that intersects the conveyance direction, the at least one preprocessing head is on the carriage configured to eject a non-coloring preprocessing solution, the at least one ink head is on the carriage configured to eject an ink, the at least one postprocessing head is on the carriage configured to eject a non-coloring postprocessing solution, and the at least one preprocessing head, the at least one ink head, and the at least one postprocessing head are arranged to be shifted from each other in the conveyance direction.

Abstract: A communication device of the present invention is a communication device which performs data communication via a power line (3) whose transmission characteristics fluctuate, and includes: a parameter group setting unit (111) which sets a first group of transmission parameters; a degree-of-limitation determining unit (40) which determines a degree of limitation on group of transmission parameters for limiting a part of the first group of the transmission parameters; a parameter group converting unit (20) which converts, into a second group of transmission parameters, the first group of the transmission parameters, by limiting the part of the first group of the transmission parameters; a channel communicating unit (30) which obtains a result of transmission parameter evaluation data using the second group of the transmission parameters; and a parameter determining unit (111) which determines an optimal transmission parameter for current data communication, based on the result of the transmission parameter eval

Abstract: An encrypted packet processing device capable of realizing a predetermined classification process according to a data type while reducing the burden on a processing device in a communication environment in which encrypted packets of different data types exist. A block specifying section specifies a location, in which information necessary for a priority level determination process by a priority level determination section is stored, in an encrypted packet. A specified block decryption section decrypts only a block specified by the block specifying section, and extracts the information necessary for the priority level determination process. The priority level determination section searches a priority level information database using the information extracted by the specified block decryption section as a key, and determines a priority level of the packet.

Abstract: An encryption information determination section in a communication device negotiates an encryption algorithm to be used for encrypted communications with an encryption information determination section in a network camera, which is a communication counterpart. At this time, the encryption algorithm to be selected is varied depending on the CPU load of the communication device. That is, if the CPU utilization rate is high, a low-load encryption algorithm is selected, and if the CPU utilization rate is low, a high-load encryption algorithm is selected. A encryption/decryption processing section performs code processing using the encryption algorithm selected by the encryption information determination section.

Abstract: The packet reception control device includes: a load detection section for detecting a load on a processor and outputting the detection result; and a reception control section for determining whether or not the processor should receive a reception packet based on the detection result output from the load detection section and outputting the determination result. The processor receives the reception packet according to the determination result output from the reception control section.

Abstract: An encrypted packet processing device capable of realizing a predetermined classification process according to a data type while reducing the burden on a processing device in a communication environment in which encrypted packets of different data types exist. A block specifying section 13 specifies a location, in which information necessary for a priority level determination process by a priority level determination section 161 is stored, in an encrypted packet. A specified block decryption section 14 decrypts only a block specified by the block specifying section 13, and extracts the information necessary for the priority level determination process. The priority level determination section 161 searches a priority level information DB 162 using the information extracted by the specified block decryption section 14 as a key, and determines a priority level of the packet.

Abstract: Data blocks and redundant data are distributed across disk drives. In response to a first read request transmitted from a host device, a controller issues second read requests to read the data blocks and the redundant data from the disk drives. Further, the controller detects the disk drive which is no longer required to read the data block or redundant data from among the disk drives, and issues a read termination command to the detected disk drive to terminate reading therefrom. In a disk array device with such structure, even reading of one parity data with much time required does not affect other reading.

Abstract: Data blocks and redundant data are distributed across disk drives. In response to a first read request transmitted from a host device, a controller issues second read requests to read the data blocks and the redundant data from the disk drives. Further, the controller detects the disk drive which is no longer required to read the data block or redundant data from among the disk drives, and issues a read termination command to the detected disk drive to terminate reading therefrom. In a disk array device with such structure, even reading of one parity data with much time required does not affect other reading.

Abstract: Upon receipt of a public value X from a device A, a device B estimates a time to be taken for calculation of a public value Y and a time to be taken for calculation of a common key K, and then calculates a required operation time Tb required at the device B for a key exchanging process for transmission to the device A to report a response delay time S306 and S307. Then, the device B actually calculates the public value Y and the common key K S309 and S310. Upon receipt of the required operation time Tb, the device A extends a waiting limit (timeout time) for a response from the device B to a time when the required operation time Tb elapses from the reception S311.

Abstract: An encryption information determination section 32 in a communication device 24 negotiates an encryption algorithm to be used for encrypted communications with an encryption information determination section 18 in a network camera 12, which is a communication counterpart. At this time, the encryption algorithm to be selected is varied depending on the CPU load of the communication device 24. That is, if the CPU utilization rate is high, a low-load encryption algorithm is selected, and if the CPU utilization rate is low, a high-load encryption algorithm is selected. A encryption/decyption processing section 38 performs code processing using the encryption algorithm selected by the encryption information determination section 32.

Abstract: When a get resource message arrives from an exterior, a resource allocation part reserves a resource. In case of data reading or data writing, a declared value management part checks parameters and a slot allocation part allocates the resource, thereby constructing an efficient file system guaranteeing delay quality in relation to data reading. As the result, it is possible to provide a file system providing pictures in a quick response time for requests from users and supporting users requiring various regeneration speeds.

Abstract: When a get resource message arrives from an exterior, a resource allocation part reserves a resource. In case of data reading or data writing, a declared value management part checks parameters and a slot allocation part allocates the resource, thereby constructing an efficient file system guaranteeing delay quality in relation to data reading. As the result, it is possible to provide a file system providing pictures in a quick response time for requests from users and supporting users requiring various regeneration speeds.

Abstract: When a get resource message arrives from an exterior, a resource allocation part reserves a resource. In case of data reading or data writing, a declared value management part checks parameters and a slot allocation part allocates the resource, thereby constructing an efficient file system guaranteeing delay quality in relation to data reading. As the result, it is possible to provide a file system providing pictures in a quick response time for requests from users and supporting users requiring various regeneration speeds.

Abstract: A configuration managing part stores the number of storage devices and respective identifying information. An empty area managing part stores empty-block addresses for each storage device. A destination determining part recognizes the number of storage devices with the information stored by the configuration managing part, and fetches one or more empty-block addresses for specifying empty storage areas included in each storage device from the empty area managing part. The destination determining part then repeatedly rearranges the empty-block addresses at random to determine destination of data.