Nec Corporation

Oki Electric Industry Co., Ltd.

Other

Toshiba Corporation

Ship Research Institute

Toshikazu Nakajima

Masao Nishida

Yasuhiro Taka

Ryuji Otsuka

Kakuichi Shiomi

Yoichi Kusui

Keiichiro Nakaue

Yasuhiro Katsuyama

A portable phone includes dial keys () including at least one specific key and unspecific keys, and a processing unit (). The processing unit determines whether one of the dial keys which is operated in a first mode is one of the unspecific dial keys, and changes an operation mode from the first mode to a second mode when the operated dial key is one of the unspecific dial keys. The portable phone further includes a display unit (). In a telephone number searching operation mode as the second mode, the processing unit reads out a list of data associated with destination phone numbers from a storage unit () and controls the display unit to display as a non-dialing operation. Also, the processing unit controls the display unit to selectively scroll the list of data in one of upward and downward directions in response to an operation of one of the unspecific dial keys.

Operation method of portable phone to change mode using dial key and apparatus for the same

A transmitter is capable of avoiding increasing of a circuit size and current consumption. The transmitter assembly includes a pre-distortion type linearizer correcting to mutually cancel a distortion component caused in a transmission signal and a correction data component. The transmitter assembly also includes first storage means for preliminarily storing the correction data.

Transmitter and distortion compensation method to be used therefor

A transmitter suitable for a CDMA mobile terminal is provided which realizes a circuit with a small size and low consumption power which suppresses the effect of carrier leak in the state where a transmission output is controlled at a low level. A carrier control circuit comprises a reference voltage generator, a comparator, and a controller. The comparator determines whether the level of a control signal is higher or lower than a reference voltage. The controller controls the gain of a local variable amplifier such that a distortion characteristic of a transmission output is optimal when the control signal is higher than the reference voltage, and controls the gain of the local variable amplifier such that the effect of carrier leak on the transmission output is suppressed when the control signal is lower than the reference voltage based on the determination result of the comparator.

Transmitter for mobile terminal with carrier leak suppressing circuit

A transmission power amplification apparatus includes a first automatic gain control section, second automatic gain control section, power amplifier, and control section. The first automatic gain control section amplifies an input signal. The second automatic gain control section amplifies an output from the first automatic gain control section. The power amplifier nonlinearly amplifies an output from the second automatic gain control section and outputs a transmission signal. The control section controls amplification of the input signal by using the synthetic gain of the first and second automatic gain control sections and the power amplifier in the transmission power range from a maximum value to an intermediate value, and controls amplification of the input signal by using only the gain of the first automatic gain control section in the transmission power range from the intermediate value to a minimum value. The second automatic gain control section has a gain characteristic that corrects nonlinearity of the power amplifier . A transmission power amplification method is also disclosed.

Transmission power amplification method and apparatus

There is provided an integrated circuit electrically connected to both a central processing unit and a memory, for controlling an electronic device, the integrated circuit including (a) a peripheral functional block operating under an operation mode the central processing unit indicated, (b) a communicator for communicating an internal signal to the peripheral functional block, (c) at least two registers capable of being initialized with a desired initial value stored in the memory in accordance with indications from the central processing unit, and (d) a switch receiving an external signal to select one of the registers, a signal being transmitted to the communicator through the thus selected register. The integrated circuit makes it no longer necessary to initialize registers when an operation mode is switched, unlike a conventional integrated circuit.

Large-scale integrated circuit (LSI) circuit for controlling electronic device including LSI, and method of controlling the circuit

Weather information is stored in a weather information storage unit. Information of aircraft flight situation, flight plan, air traffic flow management, and condition status is stored in an aircraft information storage unit. On the basis of information stored in the weather information storage unit and the aircraft information storage unit, arrival time of each arriving aircraft and departing aircraft is predicted by an arrival time prediction unit and a departure time prediction unit. The information of the estimated time thus predicted is stored in an estimated time of takeoff and landing storage unit. On the other hand, on the basis of information stored in information storage units, runway use time is assigned to each arriving aircraft and departing aircraft by a takeoff and landing assignment unit in accordance with Control System Standards. Runway reservation information thus obtained is stored in a reservation information storage unit. The information stored in the reservation information storage unit is displayed on a screen by a reservation display unit. The information stored in the estimated time of takeoff and landing storage unit is suitably displayed on the screen by a flight situation display unit.

Runway reservation system

An aircraft control system which assist in determining aircraft arrival orders and intervals, reduces controller's workloads, and ensures safe aircraft flight operation are provided. An aircraft position display system provided as part of a terminal flight control apparatus for controlling the operation of an airport terminal with the use of radar and so forth employs a plurality of tags, each displaying on a first display screen a flight control instruction composed of heading data, altitude data, and speed data, a change arrangement for allowing a user to change the heading data, altitude data, and/or speed data of the tag independently according to the flight control instruction, a display arrangement for use in a flight control instruction input mode, an arrangement for blinking an entered flight control instruction until a pilot acknowledges the instruction, an arrangement for returning the mode to the original mode when the pilot acknowledges the instruction, and an arrangement for registering final approach FIX (F) data.

Aircraft control system

An individual guidance system for aircraft in an approach control area under automatic dependent surveillance which, by supplying the pilot with the required flight data automatically in units of micro air spaces, permits safe and accurate flight with little scope for human error, being an individual guidance system for aircraft in an approach control area under automatic dependent surveillance wherein the air-traffic control system divides the approach control area automatically into a group of micro air spaces, and establishes flight rules within the micro air spaces in order to guide aircraft by establishing no-fly air spaces. Then, at such time as a change has occurred in weather conditions or other data within the approach control area, it establishes in real time in the micro air spaces flight rules, estimated time of landing of the aircraft, estimated time when the aircraft will leave the approach control area and other data in such a manner as to reflect those details, and transmits the flight rules automatically to the system of a given aircraft when the aircraft reaches a position which corresponds to the micro air spaces. The air-traffic control system guides the aircraft in question in accordance with the flight rules which it has transmitted to the system of the aircraft, and the pilot pilots the aircraft.

Individual guidance system for aircraft in an approach control area

A flight control system user interface apparatus and a control data display method thereof are provided to reduce a workload on a controller and to increase the safety of flight. A main-control terminal on a man-machine interface apparatus for use in a flight control system has an aircraft position display area 102, an aircraft order display area 102, a simple strip display area 104, an aircraft data display area 104, and a control pilot data link communication display area. These areas are arranged in such a way that they are controlled by one input unit.

Growing community of inventors

Tokyo, Japan

Toshikazu Nakajima