Abstract: A mobile terminal (100), when receiving a signal requesting mobile terminal ID information that was transmitted from a femtobase station (200) deployed at a position of a predetermined height, transmits the mobile terminal ID information to the femtobase station (200). The femtobase station (200) transmits the mobile terminal ID information transmitted from mobile terminal (100) to a public aid communication device (300). The public aid communication device (300) displays the mobile terminal ID information transmitted from femtobase station (200).

Abstract: An object is to easily store a data required for actuating a portable terminal, which is used in association with an identification data of a user, while maintaining the security. The present invention comprises a data reading/writing device having a function of reading out data stored in a memory medium of a portable terminal and a function of writing, to the memory medium, an applicable data which is required for the portable terminal; and a data collation device for collating an identification data which is peculiar to a user of the portable terminal, which is read out from the memory medium by the data reading/writing device, with a user registration data which is registered in advance, and for outputting a writing command to the data reading/writing device only when the data are consistent. The data reading/writing device writes the applicable data to the memory medium on condition that there is an input of the writing command.

Abstract: [PROBLEMS] Provided is a user-friendly authentication system with an improved security. [MEANS FOR SOLVING PROBLEMS] The authentication system of the present invention comprises: an input device for receiving from a user an input of an address data of a portable terminal owned by the user; a corresponding data generating device for generating and storing a corresponding data which corresponds to the inputted address data; a corresponding data transmitting device for transmitting the corresponding data generated in the corresponding data generating device to the address data received by the input device; and also a collation device for collating to check, when the corresponding data is inputted by the user through the input device, whether or not the corresponding data is consistent with the corresponding data which has been generated and stored by the corresponding data generating device.

Abstract: [PROBLEMS] An object is to easily store a data required for actuating a portable terminal, which is used in association with an identification data of a user, while maintaining the security. [MEANS FOR SOLVING PROBLEMS] The present invention comprises a data reading/writing device having a function of reading out data stored in a memory medium of a portable terminal and a function of writing, to the memory medium, an applicable data which is required for the portable terminal; and a data collation device for collating an identification data which is peculiar to a user of the portable terminal, which is read out from the memory medium by the data reading/writing device, with a user registration data which is registered in advance, and for outputting a writing command to the data reading/writing device only when the data are consistent. The data reading/writing device writes the applicable data to the memory medium on condition that there is an input of the writing command.

Abstract: [Problems] An object is to improve the convenience at the time of using the Internet by a portable terminal owned by a user. Means for Solving Problems] The present invention comprises a portal specifying information receiving device for receiving portal specifying information which specifies the contents of a portal site from a user through an input device; and an address data storage device for reading out the address data accessible to the portal site which is specified according to the portal specifying information from an address data storage apparatus in which the address data is stored in advance through a data reading/writing device for storing it to a memory medium of the portable terminal.

Abstract: A radio access system has a subscriber terminal, a base station connectable to the subscriber terminal via a radio link, a base station control station for controlling the base station, and an exchange accommodating a telephone set and connected to the base station control station. When the subscriber removes the handset of the telephone set from its switch, the subscriber terminal sends a false dial tone to the telephone set, and establishes a radio link between the subscriber terminal and the base station or the base station control station. The subscriber terminal receives dialing signals (PB or PD dialing signals), which are generated when keys of a dial pad on the telephone set are pushed to dial a telephone number, and sends the dialing signals to the base station or the base station control station. The base station decides whether a dialing signal represents a final digit of the dialed telephone number or not.

Abstract: There is provided a method of assigning service channel to traffic in communication system in which a subscriber's terminal is in communication with a base station through radio signals, including the steps of (a) reserving the predetermined number of channels in advance for traffic having a predetermined service rank, and (b) assigning channel preserved in advance, to the traffic having a predetermined service rank, only when there is no channel to be assigned to the traffic having a predetermined service rank. The method makes it possible to assign radio-signal channel to traffic having a high service rank, even if radio-signal channels are all occupied by traffics each having a low service rank.

Abstract: A call connection system assigns at least one specific one of a plurality of slots, in advance, as an emergency call slot for processing an emergency call and assigns remaining slots, in advance, as general call slots for processing general calls that need not be preferentially handled. This system includes a call connection processing section, announcement transfer section, and slot releasing section. If there is an idle general call slot, the call connection processing section performs call connection processing by using the idle slot in response to a general call connection request. If there is no idle general call slot and there is an idle emergency call slot, the announcement transfer section assigns one of the emergency call slots to an originating terminal, in response to a general call connection request, to transfer a first announcement informing that the general call cannot be connected because of line congestion to the originating terminal.

Abstract: On the basis of information indicating a master/slave assignment from a base station control-station, information on the channel interference levels, desired channel numbers, etc. is exchanged between a master station and each slave station, and then the master station assigns radio channels based on the information thus exchanged to the respective slave stations, thereby performing the optimum assignment of the radio channels in a radio system.

Abstract: In a time divisional multiple access type mobile communication system including a plurality of base stations, each of the base stations receiving broadcast signals from the other base stations, and determining a broadcast transmission timing in synchronization with and different from timings of the received broadcast signals. Then, a broadcast signal is transmitted at the broadcast transmission timing.

Abstract: In a digital communication system including a coder and a decoder, a predefined known data signal is combined by the coder with a sequence of input signals at a predefined time interval and are subjected to convolution coding to send convolution code sequence to the decoder The decoder is supplied with the convolution code sequence as a sequence of reception codes to decode the reception codes into a sequence of decoded signals with reference to the predefined known data signal by the use of a maximum likelihood decoding method.

Abstract: A base station 10 for an inner cell part and a base station 20 for an outer cell part are disposed at the center position of the outer cell part and the inner cell part, respectively. A service area is divided into a plurality of outer cell parts. Inside the outer cell parts, inner cell parts whose diameters are smaller than those of the outer cell parts and that have respective common centers are disposed. A channel controlling circuit 30 allocates optimum channels in such a manner that a third order intermodulation does in take place in the base stations 10 and 20. The base station for the inner cell part communicates radio waves with mobile stations in the inner cell part. The base station 20 for the outer cell part communicates radio waves with mobile stations in the outer cell part.

Abstract: A digital communication system and method, in which a convolutional coding of input data sequence Bm (m=1, 2, 3, . . . ) is carried out, and first coded data X1 of first coded data sequence Xm are deleted to output second coded data sequence Xn onto a transmission line. First receive data X1' are uniquely determined on the basis of receive data sequence Xn' transmitted via the transmission line, corresponding to the second coded data sequence Xn, and the last decoded data B0' of a data sequence which is previously received and decoded, to produce data sequence Xm' which are decoded by a maximum likelihood coding to obtain a decoded data sequence. Hence, a fixed amount of information of the data can be always compressed to transmit the compressed data even in a low line quality environment.

Abstract: In a TDMA radio communication system consisting of a master station and a plurality of slave stations, the master station performs channel control for sending time slot assignment information to only a calling slave station in response to a time slot assignment request from a calling slave station.The calling slave station performs transmission control. In this control, the calling slave station detects an address of a destination device from an input transmitting signal, determines a called slave station based on the detected address, adds the address of the called slave station to the input transmitting signal to form a transmission signal, and inserts the transmission signal in the assigned time slot.

Abstract: A pseudo-noise sequence generator includes a memory which is accessed by a (2n+m)-bit address signal and outputs a parallel n-bit pseudo noise sequence prestored at a corresponding address, and n registers for delaying each bit of the parallel n-bit output signal from the memory by one clock. The (2n+m)-bit address signal consists of a parallel n-bit digital input signal, the outputs from the n registers, and an m-bit control signal.