Abstract: A lossy method of compressing data, such as image data, which uses wrap-around wavelet compression is described. Each data value is divided into two parts and the first parts, which comprise the most significant bits from the data values, are compressed using wrap-around wavelet compression. Depending upon the target compression ratio and the compression ratio achieved by compressing just the first parts, none, one or more bits from the second parts, or from a data value derived from the second parts, may be appended to the compressed first parts. The method described may be lossy or may be lossless. A corresponding decompression method is also described.

Abstract: An image processing device includes a decompression unit configured to decompress a compressed image signal, a gradation-dependent correction unit configured to perform gradation-dependent correction on the decompressed image signal, the gradation-dependent correction being a correction process in which the amount of correction varies among luminance gradations, and a compression error correction unit configured to perform compression error correction in which input luminance values are selectively offset, on the decompressed image signal which has yet to be subjected to the gradation-dependent correction.

Abstract: A host apparatus includes a command-pattern changing unit. A detector includes a detector-communication-parameter changing unit. A motor drive control apparatus includes a communication-parameter changing unit and a control-gain changing unit. The command-pattern changing unit, the detector-communication-parameter changing unit, and the communication-parameter changing unit change, based on determination of detector communication by a communication-abnormality determining unit, plural communication parameters, control gains, and command patterns, which are determined in advance, in synchronization with one another to control drive of a motor.

Abstract: An image processing device may acquire original image data, acquire a level selected from a plurality of levels representing compression degrees, and compress the original image data according to the original image data and the selected level to generate compressed image data. The device compresses first original image data using a first-type compression method, when the original image data is the first original image data and the selected level is a specific level of the plurality of levels. The device compresses second original image data using a second-type compression method different from the first-type compression method, when the original image data is the second original image data and the selected level is the specific level.

Abstract: A printing system provided with a printer and a host computer which transfers image data to the printer includes a data transfer unit configured to transfer the image data as image data of a first data format in the case where a connection between the printer and the host computer is first connection means, and transfer the image data as image data of a second data format in the case where a connection between the printer and the host computer is second connection means, wherein the second connection means has less data communication amount per unit time than the first connection means, and when given image data is transferred, image data of the second data format, corresponding to the given image data, has less data amount than image data of the first data format, corresponding to the given image data.

Abstract: A next generation application issues a status information request for acquiring status information from a print device. A next generation driver executes status information acquisition processing from the print device and generates coupled information by coupling the acquired status information each time the status information is acquired to thereby determine whether or not a specific code was acquired based on the coupled information. When the specific code was not acquired from the image forming device, the next generation driver determines whether or not the number of execution times of status information acquisition processing is within a threshold value. The next generation driver acquires information corresponding to a status designated by the status information request from the coupled information when the next generation driver determines that the number of execution times of the status information acquisition processing exceeds the threshold value and responds the information to a requesting unit.

Abstract: Described herein is a printing system including a plurality of print processing modules which can selectively transfer print media there between during printing. The system further including a controller that can predict the impending unhealthy state of at least one module and redirect one of an unprocessed job and a partially processed job preemptively from an impending unhealthy module to selectively one of a healthy module and another unhealthy module, with suitable characteristics, to process unprocessed portions of the job.

Abstract: An image communicating apparatus includes a packet control portion that transmits/receives an IFP packet by a T.38 communicating function, and an image communicating control portion. The packet control portion includes a counting unit that counts a total number of received packets and a number of loss packets in the IFP packet. The image communicating control portion includes a calculating unit that calculates a loss ratio of the IFP packet from a rate of the number of loss packets to the total number of received packets which is counted by the counting unit in a receipt of a post message; and a response signal returning unit that returns a retraining negative signal to an apparatus on a transmitting side for the image information in response to the post message, and returns a message confirming signal to the apparatus on the transmitting side in response to the post message.

Abstract: An image forming apparatus records an image on a transported recording medium. The apparatus includes a transportation unit that transports the recording medium and a recording unit that records the image on the recording medium. An encoder outputs an encoder signal including pulses according to a position of the transportation unit. A measurement unit measures a pulse period of the encoder signal, and the measured pulse period is stored by a storage unit. A detection unit detects pulse omission of the encoder signal on the basis of the value measured by the measurement unit. A pulse generation unit generates a recording timing pulse on the basis of the pulse period when the pulse omission is not detected and generates the recording timing pulse on the basis of the pulse period stored in the storage unit and measured before the pulse omission when the pulse omission is detected.

Abstract: A transmission device includes: a storage unit that holds test data used for checking occurrence/nonoccurrence of a communication abnormality; a serial conversion unit that converts image data to be transmitted and the test data stored in the storage unit into serial data; a transmission unit that transmits the serial data converted by the serial conversion unit to a reception device; and an initialization unit that, when an instruction of particular initialization is inputted, performs initialization on other circuits than the storage unit without performing initialization on the storage unit.

Abstract: Facsimile systems, devices, and methods are provided related to transmitting an image from a sending device to a receiving device via a network. One embodiment includes a status information reply unit which replies to a notification request of status information from a sending device by transmitting status information representing status of the receiving-device to the sending device via a network, in which the status information reply unit includes a transmission source classifying portion which determines a class of the sending device and a selected-status information transmitting portion which transmits the status information to the sending device via the network.

Abstract: An image forming apparatus is provided, in which the image forming apparatus includes service modules for performing system side processes on image formation, wherein applications can be added to the image forming apparatus separately from the service modules, and the image forming apparatus includes an application launch part for referring to launch selection information indicating at least a location that stores one or more applications, and launching the one or more applications from the at least a location according to the launch selection information.

Abstract: Novel, computationally efficient schemes for deterministic wavelet thresholding with the objective of optimizing maximum-error metrics are provided. An optimal low polynomial-time algorithm for one-dimensional wavelet thresholding based on a new dynamic-programming (DP) formulation is provided that can be employed to minimize the maximum relative or absolute error in the data reconstruction. Directly extending a one-dimensional DP algorithm to multi-dimensional wavelets results in a super-exponential increase in time complexity with the data dimensionality. Thus, novel, polynomial-time approximation schemes (with tunable approximation guarantees for the target maximum-error metric) for deterministic wavelet thresholding in multiple dimensions are also provided.

Abstract: A printer prints a print job having a plurality of blocks each of which has a block size section and corresponding data that should be printed. A receiving section receives the print job from an external apparatus. A comparing section compares a content of the block size section with a threshold value. When the content of the block size section exceeds the threshold value, a discarding section discards a subsequent portion of the data. The threshold value is set to a user's desired value.

Abstract: A method is provided for generating fault information associated with a communication channel. In the method, a time-varying error value associated with the communication channel is received. If the error value exceeds a first threshold, a first time value associated with the error value exceeding the first threshold is stored. If the error value then falls and remains below the first threshold for a first minimum time period before the error value exceeds and remains above a second threshold that is higher than the first threshold for a second minimum time period, the first time value is deleted; otherwise, a second time value associated with the error value exceeding the second threshold is stored. The fault information comprises the first time value and the second time value.

Abstract: A data receiving apparatus of a PCI Express system includes a receiving device, an 8B10B decoder, a forged packet removing device, and a descrambling circuit. The forged packet removing device determines whether a disparity error occurs; and an offset removing circuit compensates a number of cycles of the lane offset. The data receiving apparatus is capable of eliminating error packet caused by framing error and preventing the problem of symbol disorder and disconnection caused by set ordered noise. Furthermore, the data receiving apparatus is also capable of removing offset.

Abstract: A communication control method of an Internet facsimile may provide transmitting and receiving document information via the Internet and transmitting and receiving facsimile image information via a public switched telephone network. The method may include receiving a relay result returned from a relay broadcast distribution station in the form of an electronic mail if a transmission error occurs in transmitting information from the Internet facsimile to a destination via the Internet. Based on the received relay result, a communication management report may be prepared that indicates the occurrence of the error if the error occurs. An image corresponding to the information may be attached to the report. The report may be output in the form of an electronic mail. An Internet facsimile may include a communication section, a communication management report preparation section, an image attaching section, and a communication management report output section, which carry out such a method.

Abstract: An embodiment of the present invention includes a fax communication system for communicating fax information between a first fax machine having error correction capability and a second fax machine. The first and second fax machines are coupled to communicate with one another across a packet switching network. A network device is coupled to received fax information from the first fax machine and accumulates a portion of the fax information and stalls the second fax machine while accumulating the fax information portion until the latter is transmitted to the second fax machine free of errors across the packet switching network. Accordingly, information traffic across the packet switching network is decreased thereby avoiding a network avalanche effect.

Abstract: A communication terminal capable of sending e-mail is described in which a complete e-mail address of an e-mail recipient is specified by combining one or more e-mail address parts with two or more e-mail address parts designated by making a selection from a display of partial e-mail addresses.

Abstract: A communication control system and method provides communication over the Internet between a first user having a first communication device, such as IP phone or computer, and a second user having a second communication device. The communication control system provides a plurality of user selectable communication options, such as voice communication, chatting, e-mail and fax. The communication control system interfacing with the second communication device to determine whether the second communication device is available to communicate using a first communication option, such as voice communication. The communication control system checking transmission delay of the communication network to determine whether an optimum communication may be achieved using the first communication option. If the first communication option is not feasible due to the transmission anomaly, a second communication option, such as chatting is selected.

Abstract: An independent hardware pixel counter counts bits of print data in regions of interest. The independent pixel counter can be an application specific integrated circuit (ASIC), and is separate from a control processor. The independent hardware pixel counter selectively monitors a data bus carrying image data to or from a memory. Once the pixels of the image data have been counted, the count data can be sent to the control processor in order to implement a print strategy. The pixel counter counts the print data at a point when image data is being sent to the memory, since at that point the image data is both uncompressed and in a raster format, and thus can be easily analyzed. Additionally, because the image data is stored in the memory until enough print data has accumulated for printing, the processor is provided with sufficient time to gather and use print information before the counted image data is printed.

Abstract: A communication apparatus and its control method which assure an execution of a polling communication in a state that an ECM transmit inhibition is selected while an ECM receive inhibition is not selected for communications in the ITU-T Recommendation V.8, V.21, V.27ter, V.29, V.17, or V.34, by executing a V.17 or lower transmission without executing a V.34 transmission if the ECM transmit inhibition is selected, by executing a V.17 or lower reception without executing a V.34 reception if the ECM receive inhibition is selected, and by executing a V.8 protocol for a reception so as to execute a V.34 reception if it is a receive operation or to shift to a V.17 or lower polling transmission if it is a polling operation and executing a V.17 or lower transmission for a transmission in a state that the ECM transmit inhibition is selected while the ECM receive inhibition is not selected.

Abstract: Disclosed is a method, system, and program for error checking raster objects including pixel information for a print job. A plurality of raster objects form the print job. A raster object is received including sequence information indicating an ordering of the raster object with respect to other raster objects in the print job. A determination is made from the sequence information as to whether the raster object is received in a correct order with respect to other raster objects in the print job. This ensures that the pixel information for the raster object is intended for a current pixel line being processed. An indication of error status is made if the sequence information indicates that the raster object was not received in the correct order with respect to the other raster objects in the print job.

Abstract: Methods and apparatus for encoding and decoding video subframes (e.g., lower-resolution video) with a DVC video coder are disclosed. The disclosed embodiments allow a DVC video coder to efficiently code a subframe. The disclosed encoder embodiments redistribute blocks of data from a subframe to correspond with the staggered locations used for video segment creation. This separates video segments at the DVC coder output into two groups—those largely or completely composed of subframe data, and those containing discardable data. The present invention allows a DVC coder to be used efficiently for several different video resolutions, or in a low-resolution system.

Abstract: An image transmitting apparatus according to the invention is configured such that destination-identifying information and a data format of the image data are registered, in one set, in a one-touch transmission key so that, by operating the one-touch transmission key, the image data can be transmitted to the intended destination in the predetermined data format. Moreover, in the image transmitting apparatus of the invention, it is possible to perform image transmission via a first transmission route, e.g., for electronic mail which accepts a plurality of file formats, and image transmission via a second transmission route such as an Internet FAX route which accepts a predetermined file format only, and, in registering destination-identifying information together with a corresponding file format in a one-touch transmission key, the predetermined file format is set when the second transmission route is set as a transmission route.

Abstract: A facsimile apparatus can properly detect whether or not the facsimile apparatus is connected to a line. The facsimile apparatus comprises a network control device formed of a semiconductor DAA device having a primary line control part driven by a local power supply and a secondary serial interface circuit communicating with said primary line control part through a photocoupler and a local power supply detecting part detecting a local power supply to said primary line control part. As a result, it is possible to detect whether or not the facsimile apparatus is connected to the line.

Abstract: Compression apparatus is described that operates to select an optimum compression procedure to apply to received image data. The compression apparatus can be employed in a page printer having a print engine that must be provided with video data at a constant rate in order to avoid a print underrun. The page printer operates to receive print data and to convert the received print data into rasterized page strips. Some or all of these rasteized page strips can then be compressed by the compression apparatus for later conversion to video data. The compression apparatus operates to compress each received rasterized page strip by selecting a compression procedure that results in a compressed strip that will provide optimum print quality while not causing a print underrun and that is below a threshold data size.

Abstract: A data transmission method comprises the steps of: a) performing two-dimensional interleaving along a time axis and along a frequency axis; b) transmitting the thus-obtained data by a multi-carrier transmission form; and c) producing, by channel copy operation, data which is short for the number of channels required for fast inverse Fourier transform performed antecedent and subsequent to said step a).