Abstract: A communication terminal apparatus such as a portable telephone apparatus has a main body, a selection operation unit, an operation inputting unit, a display unit, and a controller. The main body has a speaker and a microphone. The selection operation unit is provided on the main body and selects one mode from a plurality of modes of the communication terminal apparatus. The control inputting unit is provided on the main body and changes functions based on the mode selected by the selection operation means. The display unit is provided on the main body and displays information required for selection operation or inputting operation by the selection operation unit and/or the operation inputting unit. The controller sets mode selected based on the input from the selection operation unit, and switches function of the operation input unit based on the input from the selection operation unit.

Abstract: A communication terminal apparatus such as a portable telephone apparatus has a main body, a selection operation unit, an operation inputting unit, a display unit, and a controller. The main body has a speaker and a microphone. The selection operation unit is provided on the main body and selects one mode from a plurality of modes of the communication terminal apparatus. The operation inputting unit is provided on the main body and changes functions based on the mode selected by the selection operation unit. The display unit is provided on the main body and displays information required for selection operation or inputting operation by the selection operation unit and/or the operation inputting unit. The controller sets a mode selected based on the input from the selection operation unit, and switches a function of the operation inputting unit based on the input from the selection operation unit.

Abstract: A communication terminal apparatus such as a portable telephone apparatus has a main body, a selection operation unit, an operation inputting unit, a display unit, and a controller. The main body has a speaker and a microphone. The selection operation unit is provided on the main body and selects one mode from a plurality of modes of the communication terminal apparatus. The operation inputting unit is provided on the main body and changes functions based on the mode selected by the selection operation unit. The display unit is provided on the main body and displays information required for selection operation or inputting operation by the selection operation unit and/or the operation inputting unit. The controller sets a mode selected based on the input from the selection operation unit, and switches a function of the operation inputting unit based on the input from the selection operation unit.

Abstract: A portable communication terminal capable of forming and transmitting text faster and easier than conventional terminals including input devices for selecting an operating mode of the portable communication terminal and for entering alphanumeric symbols, a display for displaying the symbols and a cursor, a memory for storing previously chosen text data, and control circuitry for displaying in the display a user selected one of the previously chosen text data stored in the memory, and for inserting alphanumeric symbols input by the user into fixed positions of the selected text before transmitting the combined text.

Abstract: A communication terminal apparatus such as a portable telephone apparatus has a main body, a selection operation unit, an operation inputting unit, a display unit, and a controller. The main body has a speaker and a microphone. The selection operation unit is provided on the main body and selects one mode from a plurality of modes of the communication terminal apparatus. The operation inputting unit is provided on the main body and changes functions based on the mode selected by the selection operation unit. The display unit is provided on the main body and displays information required for selection operation or inputting operation by the selection operation unit and/or the operation inputting unit. The controller sets a mode selected based on the input from the selection operation unit, and switches a function of the operation inputting unit based on the input from the selection operation unit.

Abstract: A communication terminal apparatus such as a portable telephone apparatus has a main body, a selection operation unit, an operation inputting unit, a display unit, and a controller. The main body has a speaker and a microphone. The selection operation unit is provided on the main body and selects one mode from a plurality of modes of the communication terminal apparatus. The control inputting unit is provided on the main body and changes functions based on the mode selected by the selection operation means. The display unit is provided on the main body and displays information required for selection operation or inputting operation by the selection operation unit and/or the operation inputting unit. The controller sets mode selected based on the input from the selection operation unit, and switches function of the operation input unit based on the input from the selection operation unit.

Abstract: A terminal apparatus having a display used for displaying information and a memory used for storing the information, an input device, having a specific operation unit which is operable in two different directions, for detecting the physical moving direction of the specific operation unit, and a control element for switching a letter or a symbol to be displayed on the display based on the detected result of the input device in the letter input mode, or for determining the input.

Abstract: An input signal composed of a predetermined total number of symbols is supplied to a series circuit of delay units. The input signal and delayed output signals from the delay units are multiplied by coefficients, and the products are added into an equalized output signal. The supplied input signal is transmitted, successively in normal, opposite, and normal directions, through a predetermined number of delay units corresponding to a unit number of symbols which is smaller than the predetermined total number of symbols to delay the input signal successively with those delay units. Each time the input signal is transmitted in the series circuit in one of the directions, an amplitude error of the equalized output signal is detected. In order to minimize the amplitude error, coefficients by which to multiply the input signal and the delayed output signals are calculated depending on the detected amplitude error.

Abstract: A transmitting and receiving apparatus suitable for use as a digital cellular type mobile station. The reference reception carrier frequency and the reference transmission carrier frequency are different. Signals are transmitted and received such that an offset frequency of a received signal of an actual reception carrier frequency relative to the reference reception carrier frequency is detected and multiplied with a signal of the reference transmission carrier frequency, and the multiplied output used as the transmitted signal of an actual transmission carrier frequency which follows the actual reception carrier frequency.

Abstract: The present invention relates to an equalizing system in which an input signal is supplied to a series circuit of a plurality of delay means, the input signal and delayed output signals of the respective delay means are multiplied with coefficients and multiplied outputs are added to thereby produce an equalized output signal.

Abstract: A method and system for radio communication between at least one parent communication unit and a plurality of slave communication units. A slave communication unit transmits an automatic answer signal in response to an incomming call receipt signal transmitted from the parent communication unit. When one of the slave communication units makes a called-person's answer to the incomming call receipt signal, it transmits a called-person's answer signal. If interference occurs between the automatic and called-person's answer signals, the parent communication unit provides a command, causing the slave communication units to stop the automatic and called-person's answer signals and permits the slave communication unit which transmits the called-person's answer signal to communicate with the parent communication unit.

Abstract: A cordless telephone of multi-channel access type comprises handset units each operative by a user for initiating a telephone call request; and a base station including a plurality of base units each having a first mode in which the respective base unit is capable of responding to a call request from one of the handset units and a second mode to which the respective base unit is converted for opening a communication channel with that one handset unit and carrying out the telephone call request in response to the reception thereof by the respective base unit while in said first mode, and a controller which controls the base units and is programmed so that, at any time, only one of the base units is in the first mode for responding to a call request from one of the handset units.

Abstract: A communication channel is established between a master station and one of plural remote stations in a multi-channel access (MCA) cordless telephone system. Access data is transmitted from the master station to all of the remote stations, at the same time, to designate a selected remote station as a representative station. The access data also includes calling data which seeks a response from that representative station. In the absence of a response to the calling data from the previously designated representative station, the station identifying data is changed to designate a new remote station as the representative station. The foregoing process is repeated until a representative station responds to the calling data, whereupon the remote stations are polled, in sequence; and a communication channel is established between the master station and the particular polled station which replies to the polling operation.

Abstract: A cordless telephone of multi-channel access (MCA) type has a master station which includes a plurality of sets of transmitting and receiving circuits and communication channels are simultaneously opened between the master station and a plurality of remote stations or handset units.

Abstract: A method and system for radio communication between at least one parent communication unit and a plurality of slave communication units. A slave communication unit transmits an automatic answer signal in response to an incoming call receipt signal transmitted from the parent communication unit. When one of the slave communication units makes a called-person's answer to the incoming call receipt signal, it transmits a called-person's answer signal. If interference occurs between the automatic and called-person's answer signals, the parent communication unit provides a command, causing the slave communication units to stop the automatic and called-person's answer signals and permits the slave communication unit which transmits the called-person's answer signal to communicate with the parent communication unit.