Abstract: A network monitoring device according to an embodiment monitors a message that is periodically transmitted in a network in which a message identified by an identifier is transmitted and received, and includes a reception time recording unit and an unauthorized-transmission determination unit. The reception time recording unit records a reception time in association with the identifier, every time a message to be monitored is received. The unauthorized-transmission determination unit determines presence of an unauthorized transmission on the received message to be to be monitored, based on a latest reception time Ti, an m previous reception time Ti-m, a message transmission period F, and a constant ? determined in advance, in a period from the reception time Ti-m to the reception time Ti, every time the message to be monitored is received.

Abstract: A network monitoring device according to an embodiment monitors a message that is periodically transmitted in a network in which a message identified by an identifier is transmitted and received, and includes a reception time recording unit and an unauthorized-transmission determination unit. The reception time recording unit records a reception time in association with the identifier, every time a message to be monitored is received. The unauthorized-transmission determination unit determines presence of an unauthorized transmission on the received message to be to be monitored, based on a latest reception time Ti, an m previous reception time Ti-m, a message transmission period F, and a constant ? determined in advance, in a period from the reception time Ti-m to the reception time Ti, every time the message to be monitored is received.

Abstract: An information processing device is connected to a plurality of networks and performs information processing. The networks include a control network connected to a control device in a mobile object, an information network connected to an information device in the mobile object, and an external network connected to an external device outside of the mobile object. The information processing device includes firewalls each connected to one of the networks, and a processor connected to each network via the corresponding firewall. The information processing device isolates at least the control network from the other networks.

Abstract: An information processing device is connected to a plurality of networks and performs information processing. The networks include a control network connected to a control device in a mobile object, an information network connected to an information device in the mobile object, and an external network connected to an external device outside of the mobile object. The information processing device includes firewalls each connected to one of the networks, and a processor connected to each network via the corresponding firewall. The information processing device isolates at least the control network from the other networks.

Abstract: A virtualization program for being able to execute a simulation at high speed, allows a native code simulator to have a stack specific to each task that is managed by a multitask OS. Processes of creation, save, restoration and erasure of a context that a target CPU executes by means of a special control register operation is executed by an API provided by the native code simulator. When porting the multitask OS, the source code is altered so as to call the API. A stack specific to a task is assigned at the API and the stack is switched for switching the task to make context switching possible.

Abstract: A virtualization program for being able to execute a simulation at high speed, allows a native code simulator to have a stack specific to each task that is managed by a multitask OS. Processes of creation, save, restoration and erasure of a context that a target CPU executes by means of a special control register operation is executed by an API provided by the native code simulator. When porting the multitask OS, the source code is altered so as to call the API. A stack specific to a task is assigned at the API and the stack is switched for switching the task to make context switching possible.

Abstract: According to a first aspect of the present invention, a conditional-access program can be updated without replacing a conditional-access large scale integrated circuit (LSI) or a conditional-access terminal device main-body. A conditional-access terminal device reads and decrypts an encrypted conditional-access program from a memory storage device at start-up, and executes conditional-access processing in conformity to the obtained conditional-access program. Consequently, by replacing the memory storage device, the conditional-access program can be updated.

Abstract: A technique is disclosed which, in viewing the digital broadcasting, allows conditional access information to be verified without any waiting time and the security of the conditional access information to be improved. Specifically, when real-time processing for viewing the digital broadcasting is terminated, background processing for verifying the conditional access information is carried out. That is, the waiting time for verification processing is made unnecessary by verifying the conditional access information in the background.

Abstract: In a mail address reading apparatus, when a probable candidate for a zip code is not obtained at the zip code reading step, without performing more detailed recognition of the zip code, a step for determining a destination line with honorific characters as an addressee name line is performed so as to read an addressee name from the determined line. Subsequently, an address is read from a destination address line adjacent to the addressee name line at the destination determination step.

Abstract: A character line recognition apparatus including an image input section for binarizing an inputted document image so as to output a binarized image, an extracting section for obtaining a combining component of a black pixel from the binarized image so as to convert the combining component into circumscribed rectangular data, a calculating section for calculating out simplified projection information based on a prescribed function into which the circumscribed rectangular data, a calculating section for calculating line direction projection information based on the prescribed function as the simplified projection information, and a detecting section for detecting a character line on the document image based on the line direction projection information.

Abstract: A binarization circuit compares the density value of the target pixel with the density value of surrounding pixels in the vicinity. A judging unit judges whether or not the target pixel is isolated from the surrounding pixels. A detection unit detects the density values of the target pixels which make the target pixels isolated by a binarization process. A calculation unit calculates the accumulated isolated pixel frequencies of each density value detected by the detecting function when the judging unit and the detecting unit have finished processing all of the original image. A determination unit determines a threshold value on the basis of the accumulated isolated pixels frequencies.

Abstract: In the data input apparatus, a pressure-sensitive tablet, a character recognition section for recognizing handwritten character data input through the tablet, a document memory for sequentially storing a recognition result of the character data, and a power supply for driving the tablet, the recognition control section, and the document memory, are integrally incorporated in a handheld casing. The data input apparatus can be detachabably connected to a document processing apparatus main body via a cable. During an input operation, the data input apparatus is disconnected from the data processing apparatus main body, and performs the input operation independently of the main body, to store the input document data in the document memory. The data input apparatus is connected to the document data processing apparatus, and the document data stored in the document memory is sent to the main body to be processed.