Nec Corporation

Japan Tobacco Inc.

Hiroyuki Uesugi

Masahiro Fukui

Akihiro Saito

Kazuhiro Yoshimura

Hidehisa Tokita

The package () has an inner case () having a box body () with an open end () in an upper portion and a lid () that is connected to a first side edge of the open end () and turns about a lid hinge () to open/close the open end (); and an outer slider () that is slidably fitted in a periphery of the inner case (), the outer slider () having a contact flap () extending towards the inside of the outer slider () in an upper edge () of a first side wall () corresponding to the lid hinge (). The inner case () includes a band-like member (), which is connected to the lid () at the upper end thereof and has a folded flap () engageable with the contact flap () of the outer slider () in a lower end thereof. When the outer slider () is slid down in relation to the inner case (), the folded flap () is engaged with the contact flap () and opens the lid ().

Slide-action hinge-lid package

A radio base station apparatus according to the invention includes an information monitoring sectionand transmitter sectionsto. Each of the transmitter sectionsto in includes a delay control sectiona data control sectiona delay adjustment sectionand an RF sectionThe information monitoring sectionmonitors the operation status of the data control section of each of the transmitter sectionsto. The information monitoring sectioncontrols the data control sectionaccording to the operation status monitored. The data control sectiongenerates a multiplexed signal of a spread delay adjustment signal and a spread main signal. The multiplexed signal goes through the delay adjustment section and RF section, and is outputted via an antenna element. At the same time, the delay control sectioncompares the signal obtained by multiplexing the delay adjustment signal in the data control sectionwith a transmitting signal detected from the RF section to thereby calculate a transmission delay time.

Delay adjustment device and method, and radio base station apparatus

Discrete data of a base-band signal obtained by a control unit is multiplied by data equivalent to a time constant of a wave detector unit, thus enabling the deterioration in a detection voltage generated during detection of a modulation wave having a marked variation in amplitudes such as CDMA. It is possible to obtain a stable power outputted by an RF unit. Accordingly, the stable automatic gain control can be performed in consideration of the variation in the detection voltages due to the type of signals inputted to the wave detector unit, irrespective of the type of inputted signals.

Automatic gain control system

An RF signal received from an antenna is supplied to an RF portion. The RF portion mixes down the RF signal to an IF signal. An RSSI circuit of an automatic gain controlling circuit portion converts the received RF signal into a DC component and detects the electric field intensity of the received signal. A level determining unit has two threshold values of the input level. The level determining unit controls the variable amount of a gain varying unit corresponding to the input level. An averaging process circuit averages a digital signal in a predetermined time period T and controls the variable amount of the gain varying unit,so that the average value converges at a digital value with n bits that represent a predetermined amplitude level. A BB portion demodulates the digital signal that has been modulated on the transmitting side to original information.

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Tokyo, Japan

Hiroyuki Uesugi