摘要:
The present invention is to provide a mass mail detection device that eliminates the need for preparation of rules or learning in advance and operates at a high speed. Electronic mail collecting means analyzes the electronic mail delivery protocol that flows on the network, and extracts an electronic mail main text from the electronic mail traffic that flows on the network. Next, characteristic quantity conversion means calculates a number of hash values from the electronic mail main text, as the characteristic quantity of the mail. Finally, mass mail detection means compares the newly received electronic mail with the stored past electronic mails, and determines the similarity in accordance with a specific standard. If determined as being similar, the new mail is determined as a candidate for a mass mail (similar mails), and a prescribed number or more of similar mails are determined as a mass mail.
摘要:
The present invention is to provide a mass mail detection device that eliminates the need for preparation of rules or learning in advance and operates at a high speed. Electronic mail collecting means analyzes the electronic mail delivery protocol that flows on the network, and extracts an electronic mail main text from the electronic mail traffic that flows on the network. Next, characteristic quantity conversion means calculates a number of hash values from the electronic mail main text, as the characteristic quantity of the mail. Finally, mass mail detection means compares the newly received electronic mail with the stored past electronic mails, and determines the similarity in accordance with a specific standard. If determined as being similar, the new mail is determined as a candidate for a mass mail (similar mails), and a prescribed number or more of similar mails are determined as a mass mail.
摘要:
An image forming apparatus that can improve image quality by correcting for variations in the potential characteristics of a photosensitive member and enhance the responsiveness of an image forming operation. The photosensitive member is rotated by a drive unit and exposed to light from an exposure unit. A first generation unit periodically generates a first signal. A second generation unit generates a second signal. A plurality of generation periods of the second signals are included in one generation period of the first signal. A control unit, while the photosensitive member is controlled to accelerate, counts the second signals in response to input of the first signal, identifies an exposure position when the photosensitive member is switched from the acceleration control to constant-speed control, reads correction data corresponding to the identified exposure position from a storage unit, and controls the light quantity of the exposure unit.
摘要:
Disclosed is an image forming apparatus whereby waiting time (downtime), which is required for forming an image by automatic adjustment relating to image formation density or image formation position, is made shorter than in the prior art. When an image having a size equal to or less than a prescribed size is formed is formed in this apparatus, the image to be formed is placed on an image carrier in such a manner that a vacant area for forming an adjustment pattern can be reserved on the image carrier. As a result, automatic adjustment relating to image formation density or image formation position can be executed while an image is formed.
摘要:
A color registration-pattern formed between continuous printing pages with different magnifications is read so as to correct color misalignment by converting the magnification into the reference magnification so as to calculate the present color misalignment correction. Thereby, a plurality of the color registration-patterns with different magnifications, which are formed between continuous printing pages with differentiated magnifications by the speed change of a polygon-mirror motor can be read so as to correct the color misalignment.
摘要:
A cell transfer method and a cell receiving apparatus in which cells of an asynchronous transfer mode are used to transfer information for a plurality of channels regardless of the number of channels and without reduction of the utilization rate of cell in the same cell configuration and the information for the channels can be reproduced while maintaining synchronization between the channels in a receiving side. The cell has an identifier for each channel and is exclusively used for each channel. Cells to be reproduced at the same time are given the same sequence number to be transferred. On the receiving side, when a cell is inputted in a cell disassembling circuit, the cell is disassembled into a sequence number, a channel identifier and channel data and channel information is written or stored in a buffer together with the sequence number by a distributing circuit in accordance with contents of the channel identifier. Reading of data from the buffers is made simultaneously from the buffers with respect to the data having the number indicated by a sequence number counter.
摘要:
An audio frequency signal identification apparatus of the present invention has a correlator for obtaining the full band power component and autocorrelation coefficients of a digital audio frequency signal to be identified for each analysis time, a plurality of band pass filters for dividing and filtering the audio frequency signal into a plurality of bands, a plurality of integrators for full wave rectifying and integrating the outputs from the plurality of band pass filters for each analysis time so as to obtain individual power components for the respective bands, a first identification parameter calculator for calculating a maximum power component, a minimum power component, a frequency band yielding the maximum power component, a bandwidth, and a difference between the individual band power components in the respective analysis times, from the individual band power components as the outputs from the plurality of integrators, a second identification parameter calculator for calculating a difference between the autocorrelation coefficients as the output of the correlator and a difference between the autocorrelation coefficients in the respective analysis times, an identification and judgement processor for judging the signal type of the audio frequency signal to be identified in accordance with which of a plurality of predetermined judgement conditions the identification parameters obtained from the first and second identification parameter calculator and the full band power component correspond and if they satisfy a condition of continuity.
摘要:
A claw teeth type electric rotary machine comprises a stator including an annular core with claws formed from a powder core and an annular coil installed inside the annular core, and a rotor rotatably positioned inside the stator. An inner edge of the annular core is provided with plural claw poles which are protruded at a predetermined interval in a circumferential direction and extended in an axial direction of the annular core so as to alternately meshes with each other. The stator comprises the annular core with claws, the annular coil, and a molded nonmagnetic potting material filled between the annular core with claws and annular coil, so that the annular core with claws and annular coil are integrated with the molded potting non-magnetic material.
摘要:
An image forming apparatus that forms a latent image on an image carrier based on image data, the apparatus includes: a first calculating unit adapted to calculate an exposure amount of a pixel of interest included in a partial region configured of a plurality of pixels that constitute the image data; a second calculating unit adapted to calculate an exposure amount of surrounding pixels that are located around the pixel of interest and constitute the partial region; and a toner consumption amount calculating unit adapted to calculate a toner consumption amount of the pixel of interest based on the exposure amount of the pixel of interest and the exposure amount of the surrounding pixels, wherein the second calculating unit calculates the exposure amount of the pixel of interest by weighting the image data corresponding to the surrounding pixels on a pixel-by-pixel basis.