Abstract: An image processing apparatus includes a receiving unit, a detecting unit, and a generating unit. The receiving unit receives two pieces of image data to be compared with each other. The detecting unit detects the difference between the two pieces of image data received by the receiving unit. If a drawing element in the image data where the difference is detected by the detecting unit is dense with modified parts to such an extent that it is estimated to be difficult to identify the content of modification in the display of the difference, the generating unit generates difference image data indicating the difference between the two pieces of image data for comparison by adding an auxiliary image to highlight the content of the detected difference.

Abstract: An image processing apparatus includes a receiving unit, a detecting unit, and a generating unit. The receiving unit receives two pieces of image data to be compared with each other. The detecting unit detects the difference between the two pieces of image data received by the receiving unit. If a drawing element in the image data where the difference is detected by the detecting unit is dense with modified parts to such an extent that it is estimated to be difficult to identify the content of modification in the display of the difference, the generating unit generates difference image data indicating the difference between the two pieces of image data for comparison by adding an auxiliary image to highlight the content of the detected difference.

Abstract: An image processing apparatus includes a reception unit, an acquisition unit, an enlarging/reducing unit, and a detector. The reception unit receives two image data to be compared. The acquisition unit acquires character sizes of characters contained in the two image data received by the reception unit. The enlarging/reducing unit enlarges or reduces the image data received by the reception unit such that the character sizes of the characters contained in the two image data acquired by the acquisition unit coincide with each other. The detector detects a difference between the two image data which have been enlarged or reduced by the enlarging/reducing unit such that the character sizes of the characters contained in the two image data coincide with each other.

Abstract: Disclosed is a document management server including a storing unit that stores document information, a generating unit that generates connection information for accessing the document information stored in the storing unit, a transmitting unit that transmits the connection information generated by the generating unit to a document management device, wherein the connection information transmitted by the transmitting unit is substituted with the document information stored in the document management device.

Abstract: An optical transmission device in which: a first cyclic filter with a fixed transmission wavelength characteristic and a second cyclic filter with a variable transmission wavelength characteristic are combined, and the transmission wavelength characteristic of the second cyclic filter is changed according to a target wavelength, to thereby control the relative phase relationship of the transmission wavelength characteristics of the first and second cyclic filters. Moreover a light source is controlled according to a monitored value of the transmittance of the second cyclic filter with respect to the control target light, to thereby match the wavelength of the control target light with the target wavelength. Consequently, it is possible, with a simple configuration using a combination of two cyclic filters, to variably control wavelength at arbitrary wavelength intervals at a high level of precision.

Abstract: An optical transmission device in which: a first cyclic filter with a fixed transmission wavelength characteristic and a second cyclic filter with a variable transmission wavelength characteristic are combined, and the transmission wavelength characteristic of the second cyclic filter is changed according to a target wavelength, to thereby control the relative phase relationship of the transmission wavelength characteristics of the first and second cyclic filters. Moreover a light source is controlled according to a monitored value of the transmittance of the second cyclic filter with respect to the control target light, to thereby match the wavelength of the control target light with the target wavelength. Consequently, it is possible, with a simple configuration using a combination of two cyclic filters, to variably control wavelength at arbitrary wavelength intervals at a high level of precision.

Abstract: A software version-up/addition managing apparatus includes: a version-up/addition accepting section accepting an instruction of certain processing of a software; a dependency relation extracting section extracting a dependent software; a reference value associating section associating reference values with the software, and the extracted dependent software, respectively; a reference value changing section that, when the certain processing is instructed as to the software or the dependent software or when the software or the dependent software is extracted as a dependent software of another software, increments the reference value of the software or the extracted dependent software, and when stop of the certain processing is instructed, decrements the reference value of the software or the extracted dependent software; and a stop determination section determining based on the reference value, when the instruction of the stop is accepted, whether or not the instruction of the stop is to be executed.

Abstract: A light source error detection system and method including monitoring a plurality of characteristics of a light source and controlling the light source based on a plurality of monitored results. The system and method control the light source differently for a first case when only one of the monitored characteristics is abnormal than a second case when more than two of the monitored characteristics are abnormal. In controlling the light source, an output power of the light source is decreased with different time constant for the first case and the second case.

Abstract: A light source error detection system and method including monitoring a plurality of characteristics of a light source and controlling the light source based on a plurality of monitored results. The system and method control the light source differently for a first case when only one of the monitored characteristics is abnormal than a second case when more than two of the monitored characteristics are abnormal. In controlling the light source, an output power of the light source is decreased with different time constant for the first case and the second case.

Abstract: Disclosed herein is a system including a first optical fiber transmission line, a plurality of second optical fiber transmission lines, a branching section for optically connecting these first and second optical fiber transmission lines, a monitor device optically connected to the first optical fiber transmission line, and a plurality of reflecting sections respectively provided in the vicinity of open ends of the second optical fiber transmission lines. The monitor device outputs monitor light through the first optical fiber transmission line and the branching section to each of the second optical fiber transmission lines. The reflecting sections reflect the monitor light to thereby generate identification optical signals having different patterns for respectively identifying the second optical fiber transmission lines.

Abstract: An optical network system for bidirectional transmission between a main system (e.g., central station) and a plurality of auxiliary systems (e.g., subscriber's stations). The main system outputs a main optical signal to a main fiber. The auxiliary systems output auxiliary optical signals to a plurality of auxiliary fibers, respectively. The main fiber and the auxiliary fibers are network-connected by a connecting unit. The main system has a detector for detecting the auxiliary optical signals and a control signal generator for generating a control signal including data for designating a specific auxiliary system whose auxiliary optical signal is not detected. The main optical signal in the auxiliary fiber corresponding to the specific auxiliary system is attenuated according to the control signal. Accordingly, laser hazard in each auxiliary system is prevented.

Abstract: An optical beam splitting device which selectively disables a faulty output port to stop further emission of the optical beam therefrom. When an optical fiber cable is broken or a cable plug is disconnected, some part of the optical beam is reflected at the fiber end face that is left open. An optical sensing device, such as a photodiode, equipped in the beam splitting device receives this reflected light and transduces it into an electrical signal. A reflection detection controller examines this electrical signal and recognizes the presence of the back reflection if the electrical signal exceeds a predetermined reference level. The reflection detection controller then sends a beam control signal to an external modulator disposed at that faulty output port. With the beam control signal, the external modulator varies the intensity of the light beam so that only a limited power will be delivered to the faulty port where the back reflection is observed.

Abstract: An optical module includes a photodiode disposed in front of a laser diode with an offset from an optical axis of the laser diode, for monitoring the power of an optical beam emitted from the laser diode in a forward direction. The optical module further achieves switching between a transmission mode and a reception mode in response to a drive current supplied to the laser diode.

Abstract: A compact, low-cost combined transmitting/receiving optical communications module, which is suitable for use in a TCM system and which is capable of normal operation over a particularly wide temperature range in optical communications equipment, is provided. The optical transmitting/receiving section for this purpose has a laser diode which outputs a transmitted optical signal, a combined monitor/receiving photodiode which not only monitors the optical output signal from the laser diode during a transmitting period, but also receives the input optical signal from the transmission path during the receiving period, and an optical mixer/divider which performs transmitting/receiving mixing and dividing between the transmission path, the laser diode, and the photodiode.

Abstract: A holographic display apparatus reconstructs an image by projecting a beam of a luminous source to a holographic sheet including a plurality of holograms. The holograms are arranged so that the central axes of images recorded in the holographic sheet are directed in a same direction, in the diverging direction, or in a converging direction. Additionally, each hologram has a first focal distance f1 (mm) and a second focal distance f2 (mm) which are in a relationship such that f1.ltoreq.f2/28+50 and f1<f2.

Abstract: The invention relates to a holographic display element which includes a reflection hologram and is attached to, for example, an automobile windshield so as to project light rays carrying images of display information onto the display element from a luminous source in the car. When external light such as sunlight coming is diffracted by the reflection hologram there is a possibility that visible light ranging from 570 nm (greenish yellow) to 780 nm (red) is diffracted into a certain range of angles in a horizontal plane and makes a strange impression on persons viewing the windshield from the outside. According to the invention another reflection hologram having different diffraction characteristics is superposed on the first hologram on the outer side in order that diffraction of visible light into the aforementioned range of angles may become inconspicuous.

Abstract: A plurality of pad operating means for manual operation are provided on a keyboard panel of an electronic keyboard musical instrument. When an operator operates the pad operating means using the keyboard during melody play, an operation signal is supplied to a CPU, and a rhythm sound corresponding to the operated pad is generated under control of the CPU. An automatic sound signal generator is provided for generating and outputting sound signals according to a designated rhythm, and selectively stops such sound signal generation. A sounding system is provided for sounding the signals received thereby.

Abstract: A plurality of pad operating means for manual operation are provided on a keyboard panel of an electronic keyboard musical instrument. When an operator operates the pad operating means using the keyboard during melody play, an operation signal is supplied to a CPU, and a rhythm sound corresponding to the operated pad is generated under control of the CPU.

Abstract: A step signal of which the period varies according to random data is derived from a step pulse generator, and is supplied to an address counter. By the output data from the address counter, an address of a waveform ROM is specified. From a waveform ROM, the waveform based on the random data is output in the form of a distorted waveform signal. Using this output signal of the distorted waveform, a cymbal sound, for example, is generated in a musical tone generator.

Abstract: An electronic keyboard musical instrument is capable of inputting rhythmic patterns by setting desired rhythmic patterns in memory circuits using the keys of keyboards. The set rhythmic patterns operate a rhythm source circuit when read out from the memory circuits during performance and thereby output rhythm sounds.