Nec Corporation

Nikon Corporation

Nikon Vision Co., Ltd.

Yasuaki Ishikawa

Jun Kawakami

Katsunori Tomita

Satoru Okazaki

Koichi Watanabe

Hiroharu Sakoda

There are provided a reticle, a reticle unit, and an optical apparatus, such as a rifle scope, each having a novel configuration that allows formation of a desired pattern. In a reticleAon which a pattern that serves as an indicator when an object under observation is visually recognized is formed, the pattern is formed of protruding sectionsandprovided on a pattern formation surfaceof a plate-shaped optical member. The protruding sectionsandare each formed of a plurality of protruding ridges(structural elements) extending in the lengthwise direction of a line that forms the pattern in parallel to the widthwise direction of the line. The protruding ridgeseach have an inclining surfaceinclining with respect to the optical path of an observation optical path, and the inclination angle of the inclining surface with respect to the optical axis Z is so set at an angle that causes light incident via an objective lens to be deflected to exit out of the observation optical path.

Reticle, reticle unit, rifle scope, and optical apparatus

A mobile communication system includes a mobile station connected with a base station by radio when being in a cell formed by the base station, and configured to communicate with a counter side unit through the base station; and a relay station configured to form a limitation area. The relay station receives a downlink signal from the base station and transmits a limitation downlink signal obtained by adding information showing that it is in the limitation area to the downlink signal to the limitation area. When receiving the limitation downlink signal, the mobile station transmits an uplink signal showing a function limited state to the base station in synchronization with a downlink channel received from the base station.

Mobile communication system and mobile communication method

A mobile communication system includes: a base station configured to form a cell and transmit a downlink signal which has been spread with a downlink scrambling code, toward the cell; a mobile station connected with the base station by radio when the mobile station is in the cell, and configured to communicate with a counter side station through the base station; and a relay station configured to receive the downlink signal, generate a limitation downlink signal showing a limitation area in which a function of the mobile station is limited, based on the downlink signal, and transmit the limitation downlink signal which has been spread with a specific scrambling code different from the downlink scrambling code, toward the limitation area. The downlink signal contains a base station peripheral cell list showing a scrambling code used in another base station on a periphery of the base station. The relay station determines the specific scrambling code based on the base station peripheral cell list when receiving the downlink signal.

Mobile communication system and operation method in mobile communication

To obtain a mobile communication system that can perform handover without causing instantaneous interruption and packet loss and without lowering the performance of the entire network when a mobile communication system is realized by the IP network. During handover of a MN from a handover source cell to a handover destination cell, the MN obtains a CoA of a link, to which a handover destination BTS is connected, and sends it to a handover source BTS. When the handover source BTS receives the CoA from the MN, it measures a data transfer time to the handover destination BTS and transfers an IP packet destined to the MN to the handover destination BTS, and after the transfer time has passed, the handover source BTS sends it to the MN as radio data. The handover destination BTS sends the transferred data to the MN as radio data. The MN sends a message including the CoA to a CN when the handover completed. When the CN receives the message, it routes and directly sends data to the handover destination BTS.

Mobile communication system, radio base station, operation control method and program thereof

When a mobile node makes handover, the mobile node issues a binding update message and sends the binding update message to a base transceiver station from which handover is made. When the base transceiver station from which handover is made sends radio data to the mobile node, it also transfers the same data to a base transceiver station to which handover is made, so that the base transceiver station to which handover is made also sends the radio data to the mobile node. As a result, the mobile node receives the radio data via an IP network from both the base transceiver station from which handover is made and the base transceiver station to which handover is made. Since the mobile node makes soft handover, the handover can be made without causing a communication short-break and a packet loss.

Handover process free of short-break and packet loss in CDMA mobile communication system on IP network

There is provided a reset circuit in which the necessity for adjusting the constant of the pull-up resistor of the reset trigger signal is eliminated to assure a reliable reset operation. The reset circuit has another function to cancel the reset, even when clocks are stopped on power up. During the normal operation, a clock stop detection signal CALMB takes on the level 'H' so that a reset trigger signal CPURSTB is masked by an OR gate circuit. If the clocks are stopped during the normal operation, and the clock stop detection signal CALMB is 'L', the reset trigger signal CPURSTB is passed through OR gate circuitsand AND gate circuit, and output as a reset output signal RSTB.

Reset circuit and digital communication apparatus

A power-on reset circuit has a configuration comprising an input circuit which is initialized by the assertion of a power-on reset signal entered from outside when power supply is turned on and supplies a first signal of a first logical value at the time a detection signal is entered, a reset extending circuit which is initialized by the assertion of the power-on reset signal and, after the power-on reset signal is negated, supplies a second signal which takes on a second logical value when an external clock signal is first entered and a third logical value after the lapse of a prescribed length of time determined by counting the external clock signals after the first signal of the first logical value is entered, a detecting circuit which is initialized by the assertion of the power-on reset signal and, after the power-on reset signal is negated, caused to generate the detection signal by the input of the second signal of the second logical value from the reset extending circuit and to supply it to the input circuit, and a gate circuit which supplies a reset signal of a prescribed logical value when the first signal of the first logical value is supplied from the input circuit and the second signal of the third logical value is supplied from the reset extending circuit.

Power-on reset circuit

A clock producing circuit comprises a phase comparator to produce a comparison signal representing phase difference between a first output clock produced by a first PLL and a second output clock produced by a second PLL. The comparison signal is supplied to a digital filter included in the second PLL. The digital filter updates filter coefficients thereof to reduce the phase difference while the first output clock is selected as a selected output signal. Thus, the second output clock coincides the first output clock in phase. If the first reference clock disappears, the second output clock instead of the first output clock is selected as the selected output clock. At the same time, the digital filter stops updating the filter coefficients. A phase shift is not caused in the selected output clock by changing from the first output clock to the second output clock.

Clock producing circuit capable of suppressing phase shift at a time of change from active clock to standby clock

Reticle pattern for a gun scope

An eye cup moving mechanism of an optical device includes: an eyepiece lens holding barrel that houses and holds an eyepiece lens; an eyepiece outer casing that is capable of sliding against an external circumferential portion of the eyepiece lens holding barrel; and an eye cup cover provided at the eyepiece outer casing. The eyepiece lens holding barrel includes a first regulating member provided at the external circumferential portion thereof; and the eyepiece outer casing includes a second regulating member that comes in contact with the first regulating member to regulate a movement of the eye cup cover along an optical axis of the eyepiece lens.

Eye cup moving mechanism of optical device

Binoculars provided with first and second objective lens barrels respectively having objective lenses at an end, first and second eyepiece lens barrels respectively having eyepiece lenses and adapted to slide respectively on the other end portions of the first and second objective lens barrels, prisms positioned between the objective lenses and the eyepiece lenses and provided respectively in the first and second objective lens barrels, and a focusing mechanism provided with a focusing member and adapted to displace the first and second eyepiece lens barrels in the axial direction by the rotation of the focusing member, wherein each of the prisms is composed of a roof prism having an entrance face for receiving the light beam from the objective lens and an exit face for introducing the received light beam to the eyepiece lens, the exit face being so formed as to be loosely insertable in the eyepiece lens barrel and the periphery of the entrance face being fixed in the objective lens barrel so as that the exit face can enter the eyepiece lens barrel when the eyepiece lens barrel is auxiliary displaced toward the roof prism by the focusing mechanism.

Binoculars

There is provided a click device adapted to define a position by fitting a clicking projection in desired one of clicking grooves provided at a predetermined pitch. For defining the position with a unit less than a pitch of the clicking grooves, there are provided plural clicking projections, which are provided in respectively different positions within a pitch (or N pitches, wherein N is zero or a natural number) of the clicking grooves.

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Tokyo, Japan

Yasuaki Ishikawa