Abstract: A mobile station used in a mobile communication system which accepts location registrations from mobile stations in order to perform mobile station location management, the mobile station being comprising a detection unit which detects that it is in an overlap region of hierarchical location registration areas; and a delay unit which delays location registration when the detection has been made.

Abstract: A multi color image forming apparatus includes a plurality of stations arranged side by side for forming unique mono-color toner images using mono-color developers each having a different mono-color toner. Each of the plurality of stations includes an image bearing member for bearing a latent image, and a developing device for visualizing the latent image into the mono-color toner image. A conveying device is provided to convey a transfer medium. A transfer device is provided to transfer the mono-color toner images from the image bearing members to the transfer medium. Charge ability of prescribed mono-color toner included in the mono-color developer used in the upstream station is smaller than that used in the downstream station.

Abstract: To enable transmission power control (outer loop control) considering changes (for example, changes in encoding gain and number of diffusions or the like) in durability for transmission error. The radio communication apparatus for controlling a target quality of a received signal used for the inner loop power control with outer loop power control. The radio communication apparatus comprises a detector operable to detect a change in durability for transmission error of received data and an update controller operable to execute a gradual update of the target quality for detection of high durability, when the detected durability is low.

Abstract: A mobile communication network comprising a plurality of base stations and a plurality of mobile machines, the unit for supplying particular location information assigned to a predetermined particular area in advance to the mobile machines moving in the particular area and the mobile machines conduct location registration to the base station side by using the particular location information at a time when the mobile machine enters in the particular area, thereby, increase of load on a network and of power consumption, and quality deteriorations of transmission paths, due to location registration when many users carrying the mobile machines move on a train or the like can be prevented.

Abstract: An image formation apparatus and process cartridge exhibiting high durability, in which such disadvantages as irregular recovery of untransferred toner and the advance of carrier degradation are not produced even when jointly using a trickle development system and a cleanerless system, comprising an image support member on which a latent image is formed; a developing unit that houses developer having carrier and toner, develops the latent image formed on the image support member, and recovers untransferred toner remaining on the image support member; a carrier supply unit that supplies carrier to the developing unit; carrier discharge means that discharges carrier housed in the developing unit to outside of the developing unit; and lubricant supply means that supplies lubricant onto the image support member.

Abstract: A temperature-compensated optical fiber component for use in high-density WDM optical communication includes an optical fiber which has a Bragg grating serving as a monochromatic filter, an inner package which supports the optical fiber and causes the Bragg grating to have a temperature-compensating capability, and an outer package arranged outside the inner package. A clearance having a heat insulating function is provided between the outer package and the inner package.

Abstract: An image forming apparatus includes a plurality of color toner development devices, a recycled toner development device, at least one cleaning device, a toner collecting and supplying device, and an image pattern generation device. The plurality of color toner development devices store separate color toners, and the recycled toner development device stores recycled toner. The at least one cleaning device removes toner remaining on at least one image carrying member after a transfer operation. The toner collecting and supplying device stores and supplies the removed toner to the recycled toner development device. The image pattern generation device generates image patterns developed by the plurality of color toner development devices and the recycled toner development device based on a characteristic of developer and a color of the recycled toner stored in the recycled toner development device.

Abstract: The radio base station apparatus comprises: a plurality of antenna elements for transmitting and receiving radio signals; a detection unit for detecting information about an uplink dedicated channel corresponding to a first user equipment from signals received via the plurality of antenna elements; a directivity control unit for determining directivity of transmission power based on the information detected by the detection unit when signals are transmitted to the first user equipment via the downlink shared channel; and a transmission unit for transmitting signals with the directivity determined by the directivity control unit.

Abstract: An optical fiber grating part including an elongated pedestal, and a base plate installed on said pedestal, and having a different coefficient of linear thermal expansion from said pedestal, and an optical fiber passing through said pedestal, and connected to connection points installed on said pedestal or said base plate located apart from each other in the longitudinal direction of said pedestal, and having an optical fiber grating located between said connection points, wherein a predetermined tensile force is added to said optical fiber grating, and said pedestal and said base plates thermally expand or thermally shrink independently in the longitudinal direction of said pedestal, and an extension line of an axis of said optical fiber joining said connection points passes through a contact surface between said pedestal and said base plate.

Abstract: An optical module comprises an optical fiber having a formed portion to form a fiber grating and a package to which the optical fiber is secured. The package comprises a single package member or at least two or more package members whose materials differ from each other. The optical fiber is secured to the package member. A distortion for adjusting a Bragg reflection wavelength of the fiber grating of the optical fiber is given to the package member.

Abstract: The present invention relates to a transmission power control apparatus and a radio base station that properly maintain a target value of uplink transmission quality as a reference for transmission power control. An object of the present invention is to accurately maintain a target value at a proper value at low cost. Thus, a transmission power control apparatus according to the present invention includes a monitor section which monitors a value of the uplink transmission quality; and a target value update section which updates the target value in such a manner as to decrease a difference between the value of the transmission quality monitored and the target value when the transmission quality is not in a predetermined range which includes the target value of the transmission quality as a reference.

Abstract: A communication resource management device changes the transfer rate of a first control channel related to a first mobile terminal according to a communication condition. The device determines whether there is a frequency band for which it is not determined whether the frequency band is to be used in a predetermined time period based on a current transfer rate of a second control channel related to a second mobile terminal and an amount of data to be transmitted in the second control channel; and allocates, to the first mobile terminal, at least a part of the frequency band for the second control channel with respect to the second mobile terminal in a predetermined period of time. The device changes the transfer rate in the first control channel while maintaining the total frequency band for plural control channels related to plural mobile terminals at a constant value.

Abstract: In transmission power control in a CDMA mobile communication system which controls the uplink transmission power of a mobile station so as to obtain a target SIR, and also controls the target SIR based on the quality of the transmission path, when one mobile station transmits and receives the same data simultaneously with a plurality of base stations, the quality of each transmission path is monitored. The data received over the transmission path with the best quality is selected, and for each transmission path the selectivity of data sent over the transmission path is calculated, the target SIR is updated based on the data quality after data selection, and for each transmission-path the target SIR after updating is multiplied by the selectivity for each transmission path to obtain the actual target SIR for the transmission path.

Abstract: A communication device is disclosed that includes a priority provision part. The priority provision part provides priority information to a predetermined control packet to be transmitted from a first layer controlling a data packet retransmission function, and provides the predetermined control packet to a second layer lower than a first layer. The priority information indicates that the predetermined control packet is to be transmitted from the second layer prior to another packet.

Abstract: An optical module comprising: a comb-shaped package having a plurality of teeth portions and a base portion; and at least one optical fiber having fiber grating, wherein respective fiber-grating formed portions of at least one optical fiber are placed in corresponding teeth portions and base portion of said package, and the optical fiber is fixed to the base portion and corresponding teeth portion in such manner that the fiber-grating formed portion exists between the base portion and the corresponding teeth portion.

Abstract: An optical module for reducing the variance of grating spacing in an optical fiber comprises an optical fiber receiving portion having an optical fiber receiving portion and optical fiber securing portions for receiving and securing the optical fiber to the optical module, respectively. An adhesive agent containing filler and having an excellent water-vapor resistance is applied to the securing portions of the optical module for securing the fiber grating portion of the optical fiber to the optical module.

Abstract: Audio DIF blocks containing audio data and video DIF blocks containing video data are extracted by an audio/video extracting unit and respectively recorded in separate storage areas of an HDD. System data and audio auxiliary data are extracted by a system data reconstruction unit and thereafter recorded in a system data storage area of the HDD together with frame information generated by a frame information generating unit. The respective data items are recorded in these separate areas, while the audio auxiliary data is recorded together with the system data, and therefore it is easy to rewrite the data during an editing operation.

Abstract: A PC card has a plastic frame provided along the periphery of a substrate. Metal plates, such as stainless steel plates and the like, cover both surfaces of the substrate and are attached to the plastic frame. External surfaces of the metal plates located in an area on the opposite side of a connector and which are touched by a person's hand are covered by an insulation tape, so that, even if a person charged with static electricity touches the PC card when the PC card is inserted or withdrawn from an external apparatus such as a personal computer (PC), the static electricity (charge) of the person does not flow into the external apparatus. Thus, malfunctions or erroneous operations of the external apparatus do not occur.

Abstract: An optical module comprises an optical fiber having a formed portion to form a fiber grating and a package to which the optical fiber is secured. The package comprises a single package member or at least two or more package members whose materials differ from each other. The optical fiber is secured to the package member. A distortion for adjusting a Bragg reflection wavelength of the fiber grating of the optical fiber is given to the package member.

Abstract: An optical module comprising: a comb-shaped package having a plurality of teeth portions and a base portion; and at least one optical fiber having fiber grating, wherein respective fiber-grating formed portions of at least one optical fiber are placed in corresponding teeth portions and base portion of said package, and the optical fiber is fixed to the base portion and corresponding teeth portion in such manner that the fiber-grating formed portion exists between the base portion and the corresponding teeth portion.