Abstract: This invention provides a mobile communication system which expanded the operation limitation of the heretofore adopted mobile communication systems and improved the spectrum efficiency greatly. A data transmission method for use in the mobile communication system of the present invention includes means for channel pluralizing by which to expand the Shannon limit and means for interference reduction by which to expand the interference limit. More specifically, a transmitting module comprises M units of modulators and L units of transmitting antennas, generates L units of signals by multiplying M units of modulated signals by a complex matrix consisting of M×L units of elements, and transmits the L units of signals from the L units of transmitting antennas.

Abstract: A document information management system in which a search-engine-compatible interface unit makes a word in a document displayed on the screen to be specified, transfers the specified word to a search engine as a keyword to be used in the search engine, receives a search result from the search engine, and displays the search result on the screen, while a browser-compatible interface unit performs a search (a keyword search and/or global search) by using the keyword transferred from a browser and transfers a search result to the browser.

Abstract: A period is defined to execute the sequences (processes) of communication data acquisition, measuring communication quality, communication quality data acquisition, and channel change. Processing is controlled to execute each process within a time limit set for each process and execute all processes in one cycle. This avoids that a delayed sequence influences and delays other sequences and can suppress delays. If processing fails to finish a sequence, it will resume the same sequence in the next cycle. For communication stations sharing timeslots, there are provided offset periods differing in length before the start of carrier sense in the timeslots for these stations. Consequently, even under a condition in which packet collision may occur, the collision of packets can be avoided by detecting a packet sent to another station by carrier sense. Moreover, by controlling sending priority of packets in the send queue of the gateway, sending delay can be avoided.

Abstract: Particular orthogonal codes are transmitted from the mobile stations to the base station as alert signals indicating the presence of data to be transmitted. The base station checks whether particular orthogonal codes are contained in the alert signals, and when the particular orthogonal codes are detected in the alert signals, information representing the detected orthogonal codes and the schedules for transmitting the data from the mobile terminals to the base station are transmitted from the base station to the mobile terminals as an alert response to the alert signals. When the information representing the orthogonal codes used for the alert signals are contained in the alert response transmitted from the base station to the mobile terminals, the data waiting to be transmitted is transmitted from the mobile terminals to the base station according the data transmission schedules in the alert response.

Abstract: In an image processing apparatus, a plurality of images and a page allocation area including a plurality of sections are displayed. The allocation unit determines which one of the images is to be allocated to which one of the sections and allocates the images to the sections, and a preview image generating unit generates a preview image of the page allocation area based on allocation made by the allocation unit, and displays the preview image on the screen.

Abstract: A radio communication system having a base station and a plurality of radio terminals, wherein each radio terminal having a transmission request transmits a reservation packet at arbitrary timing through a reservation channel in accordance with a CDMA scheme, and the base station assigns a traffic channel and a time slot to be used to each radio terminal requesting a reservation through a reply packet outputted onto a reply channel. On the reservation channel, a short spreading code corresponding to a matched filter is applied.

Abstract: An image processing apparatus includes a system control unit, and a display control unit. The system control unit judges whether a setting item that is newly selected on a preview image is mutually exclusive with a setting item that has already been selected on the preview image. The display control unit displays, when the setting items are mutually exclusive with each other, an area corresponding to the setting item newly selected differently from other areas. The display control unit also displays, when the area is selected, why the setting item newly selected cannot be set.

Abstract: Freedom for relationship between division of a signal processing unit and a pilot signal is improved in a multi-carrier communication system such as OFDM. An encoded signal is divided into resource blocks and the signals are arranged independently of the arrangement of a pilot signal. The signal arranged at the same position as the pilot signal causes a puncture upon transmission.

Abstract: The image data processing apparatus includes a storage unit to store image data having a process setting. The image data processing apparatus includes a selection screen display unit to display the one or more image data stored in the storage unit and to display a selection screen to select whether to use a process content associated with image data selected from the displayed image data if the one segment of image data is used. The image data processing apparatus includes a display control unit to display, on the display device, a preview image reflecting the process content based on the associated process content.

Abstract: Provided is a maximum likelihood decoding method of separating and estimating multiple transmitted signals transmitted by multiple transmitter antennas from multiple received signals received by multiple receiver antennas, comprising: a first step of generating a channel matrix based on channel impulse responses corresponding to the received signals; a second step of dividing the generated channel matrix into multiple sub-matrices, of identifying parts of the received signals corresponding to the sub-matrices obtained through the division, and of transforming the sub-matrices obtained through the division, by using inverse matrices of the sub-matrices obtained through the division; a third step of applying QR decomposition to the transformed sub-matrices to obtain triangular matrices, and of transforming the received signals of the parts by using the obtained triangular matrices; and a fourth step of determining one combination candidate for the parts of the transmitted signals corresponding to the transforme

Abstract: Disclosed herewith is a radio communication apparatus capable of selecting proper one of plural communication modes such as a MIMO communication system so as to obtain a higher communication rate within a range in which chain retransmission occurrence is prevented. The MIMO system deciding section of the transmitter unit decides a proper MIMO system with reference to the CQI value demultiplexed by a demultiplexer and the AMC table controlling section changes the MCS value step by step according to the transmission count and the result (success/failure) of the communication. Furthermore, the AMC table controlling section updates the mean rate in the measured rate table when the subject data is received successfully or when the transmission count reaches the maximum value.

Abstract: A long door, particularly for a four-passenger cope vehicle, is provided to allow passengers in the back seat to get in or out while the passengers in the front seat remain seated. An intermediate member stands between a door and a car body. A first connection member in which the door and the intermediate member are connected to enable rotational or horizontal motion, and a second connection member in which the intermediate member and the car body are detachably connected are provided. A control drives the second connection member located at the front or back end of the door when the front or back part of the door is opened, so that the connection between the intermediate member and the car body is released and the remaining second connection member, the intermediate member connected to that member, and the first connection member cooperate to support the weight of the door.

Abstract: Transmission power relative to a propagation path having a variation in gain is controlled to increase communication channel capacity, and a data rate is controlled in accordance with the variation of the increased communication channel capacity. In order to increase the communication channel capacity, the transmission power is determined so that the sum of noise power (=received noise power/propagation path gain) converted into one at a transmitter and the transmission power becomes constant. As a result, contrary to the background art, the transmission power is controlled to be reduced when the propagation path gain decreases and to be increased when the propagation path gain increases.

Abstract: In a radio communication apparatus, a MIMO system deciding section of a transmitter unit decides an object MIMO communication system with reference to a CQI value and a measured rate table while an AMC table controlling section selects an object MCS value according to the decided MIMO communication system and CQI value. The AMC table controlling section changes the MCS value step by step according to a transmission count and a result (success/failure) of the communication. If the communication (receiving) is successful or if the transmission count reaches the maximum value, the controlling section updates the mean value of the measured rate table. At this time, based on a value estimated from the combination of the MIMO communication system, the encoding system, and the modulating system that are used currently, the controlling section changes the reference for selecting another combination that are not used currently.

Abstract: A radio communication system using an orthogonal frequency division multiplexing system, including: a baseband unit; and one or plural remote radio units coupled with the baseband unit through an interface; wherein the baseband unit includes a first sample frequency conversion part that performs a first sample frequency conversion processing that down-samples a transmitting signal transmitted through the interface, wherein the remote radio unit includes a second sample frequency conversion part that performs a second sample frequency conversion processing that up-samples a signal received through the interface, and wherein the baseband unit further includes an inverse fast fourier transform part that generates the transmitting signal by an inverse fast fourier transform, and a transmitter characteristic compensation part that conducts frequency characteristic compensation of the first sample frequency conversion processing and the second sample frequency conversion processing for a signal that has not been su

Abstract: An analyzing unit analyzes components of input information. An area generating unit generates information on an area-representing image. A preview generating unit generates information on a preview in which the area-representing images are overlapped for each page. An operation display unit displays the information on the preview and information on a function to be performed, and accepts an instruction for setting the function. Upon accepting the instruction for the function, the preview generating unit further generates information on a preview with a processing according to the instruction performed.

Abstract: To enable not only releasing pressurization by a pressurization mechanism for pressurizing a belt thereby preventing a deformation therein but also easily and securely releasing the pressurization mechanism held in the pressure release state, thereby facilitating the installation operation of an apparatus. A pressurization mechanism for pressurizing a belt is in a released state prior to the use of the main body of the apparatus. Prior to the initial use of the main body, the pressurization of the pressurizing mechanism for the belt is exerted in linkage with a user operation of placing a recording material in a feed tray.

Abstract: An image processing apparatus includes a preview creating unit, a storage unit, and a display unit. The storage unit stores therein in advance a sample image. The display unit displays, prior to receipt of image data, an input screen that displays the sample image and independent setting items, among a plurality of setting items available for the image data, independent of contents of the image data. The creating unit creates a preview image based on setting specified with respect to any of the independent setting items for the sample image, and the display unit displays the preview image.

Abstract: A 2-step swing style vehicle door device includes a coupling means having a link, one coupled to the rear end of the opening of the vehicle body and the other end coupled to the door, and can singly cover, in a direction from the front to the rear of the vehicle, a range corresponding to two rows of seats that are arranged in the front and rear in the vehicle body. This vehicle door device transitions between a first state in which the door is closed, a second state in which the door is opened within a range corresponding to the front seat in the direction from the front to the rear of the vehicle body, and a third state in which the door is opened within a range corresponding to both the front and rear seats in the direction from the front to the rear of the vehicle body.

Abstract: An information searching method to be implemented in a computer includes accepting a first character string from characters or a character string in a reading or inspecting document that is displayed on a display unit, acquiring a second character string from index information for searching the reading or inspecting document, based on identification information of the reading or inspecting document, and executing a search based on the first character string and the second character string.