摘要:
A wavelength division multiplexing device comprises a detection unit to detect the low-frequency signal in the optical signal; and a control unit to control to make the dispersion compensator perform a compensation operation by determining that the optical signal is being input when a low-frequency signal is detected in the optical signal in the detection unit, and to control to stop a compensation operation of the dispersion compensator by determining that there is an input break of the optical signal when a low-frequency signal is not detected in the optical signal in the detection unit.
摘要:
A display device includes: a monitor and receiving set having a video signal receiving section, a display section, an image quality control section, a first control signal transceiver, and a first control section; and a control and transmission set having a television broadcast receiving section, a video signal input section, a video signal transmitting section, a second control signal transceiver, a key input section, and a second control section. The Power consumption of a first radio transmission path formed by the video signal transmitting section and the video signal receiving section is larger than that of a second radio transmission path formed by the first and second control signal transceivers. A control signal for a user interface is communicated by the first and second control signal transceivers. Only the second radio transmission path of the first and second radio transmission paths is communicable in a standby state.
摘要:
A transmitting unit of a transponder transmits a signal light having a wavelength which is set according to a control unit to a WDM unit. In this situation, when the wavelength of the signal light is adapted to a pass wavelength of an optical filter to which the signal light is inputted, the signal light is returned to a transmitting origin through a loopback path formed within the WDM unit, and then received by a receiving unit. The control unit determines the wavelength that has been setting in the transmitting unit when the signal light is received as a transmission wavelength to be used by the transponder.
摘要:
A map image display device, a map image display method and a map image display program are disclosed. Upon determination of a map image for an objective to be displayed in response to a user's command input, a standard surface area setting unit 21 divides a surface area of a whole area shown in the map image to be displayed into n equal divisions to assign resulting values to standard surface areas. Then, a particular designation selecting unit 16 selects n pieces of relevant particular designations of areas, whose surface areas are closer to the standard surface areas, among areas involved in the map image for the objective to be displayed. A display image preparing unit 17 prepares image data to cause the selected n pieces of the relevant particular designations to be displayed on the map image as icons, and a display control unit 18 controllably drives the display unit based on image data. This causes the map image, determined responsive to the user's command input, to be displayed over the display unit, while enabling the n pieces of the particular designations to be displayed on the map image as the icons in a superimposed manner.
摘要:
A picture processing apparatus for picture-in-picture applications where the number of pixels n in the horizontal direction of an original picture, the number of pixels m in the vertical direction thereof, the number of pixels N in the horizontal direction of the converted picture, and the number of pixels M in the vertical direction thereof are supplied to a dividing device. Thus, ratios A=N/n and B=M/m are obtained. The inverse number 1/A of the value A is cumulated by circuits. An address generating circuit generates addresses at four points for calculating a density value a of a converted pixel corresponding to the integer part of a cumulated value &Sgr;(1/A). These addresses are supplied to memories. The pixel data at the four points that are read from the memories are supplied to respective multiplying devices. The decimal part of the value &Sgr;(1/A) is supplied as an interpolating coefficient p to a multiplying device. A coefficient (1−q) is supplied to a multiplying device. Likewise, in the vertical direction, coefficients q and (1−q) are supplied to respective multiplying devices. These multiplying devices and adding devices perform operations. Thus, the density value a of the converted pixel is obtained and supplied from a terminal.
摘要:
The number of scans of a printing head is controlled so that printing is completed by a smaller number of scans than the predetermined number of scans on printing regions by the first and last scans upon printing on the printing medium by the printing head. In a facsimile apparatus having the printing apparatus, additional information generated by an internal character generator of the facsimile apparatus is transferred to be printed in the first or last scan of the printing head upon outputting the received image data, so that printing is completed by a smaller number of scans than the predetermined number of scans.
摘要:
A phase control apparatus which enables efficient execution of phase adjustment operations for two transmission signals so that a non-interruptive switchover function will work effectively. The proposed apparatus performs phase control to eliminate a phase difference between two reception signals which originate from a single source, but have been carried over two separate transmission lines. A delay memory unit, placed on each transmission line, delays each reception signal in accordance with a given delay time parameter. A comparison range setting unit defines a time range for phase comparison. Within the defined time range, a phase comparator compares the phases of two reception signals delayed by the delay memory units. If the phase comparison has resulted in an out-of-phase condition, a phase controller repetitively varies the delay time parameter being set in one of the delay memory units until an in-phase condition is reached.
摘要:
A printing apparatus capable of printing in an appropriate print mode, for a short print period, with maintaining excellent image quality, and a facsimile apparatus or image processing apparatus using the printing apparatus. The type of the image data is examined, in accordance with the source of input image data, and main controller 1 instructs print controller 8 to perform printing in multipath print mode or in normal print mode, in accordance with the image type. The print controller 8 controls printhead 9 in accordance with the instruction. For example, a high-precision image or halftone image is printed in the multipath print mode, while a low-density image or binary image is printed in the normal print mode.