Abstract: The invention acquires article data (S1), extracts characteristic words from the acquired article data (S2), specifies a characteristic word which is not stored as a local area word in a database 12b which stores a local area word indicating a local area in association with geography information for specifying the local area, from the extracted characteristic words (S3), acquires a result of searching performed in a search device, according to the specified characteristic word (S4 and S5), specifies a local area related to article data based on the search result and finds geography information (S6), and stores the specified characteristic word in the database 12b as the local area word in association with the specified local area (S7).

Abstract: The invention acquires article data (S1), extracts characteristic words from the acquired article data (S2), specifies a characteristic word which is not stored as a local area word in a database 12b which stores a local area word indicating a local area in association with geography information for specifying the local area, from the extracted characteristic words (S3), acquires a result of searching performed in a search device, according to the specified characteristic word (S4 and S5), specifies a local area related to article data based on the search result and finds geography information (S6), and stores the specified characteristic word in the database 12b as the local area word in association with the specified local area (S7).

Abstract: A mobile telecommunication system comprises a base station connected to a public communication network and having a non-directional antenna for broadcasting at a first frequency over a first operational zone and for receiving a radio transmission at a second frequency, a relay station provided outside the first operational zone and having a directional antenna directed to the non-directional antenna of the base station for receiving the broadcast therefrom and for transmitting thereto at the second frequency, the relay station further having a non-directional antenna for broadcasting at a third frequency over a second operational zone and for receiving a radio transmission at a fourth frequency, and a mobile terminal movable between the first and second operational zones.

Abstract: A semicustom-made integrated circuit with built-in memory unit is equipped with an internal timing generator located in the vicinity of the memory unit and responsive to two external controlling signals for producing an internal write enable signal used in a testing mode of operation, and the waveform of the internal write enable signal is hardly deformed on the way to the memory unit even if the signal propagation paths for the external controlling signals are prolonged due to increase of integration density, thereby enhancing the reliability of the testing operation.

Abstract: A programmable read only memory device according to the present invention comprises a plurality of row selector blocks respectively coupled between row lines and a ground node, and each row selector block has a first discharging unit providing a current path in a read-out mode of operation only and a second discharging unit providing a current path in both write-in and read out modes of operation, so that the current driving capability is decreased in the read out mode of operation, thereby decreasing the current consumption as well as the time period consumed for a single read out operation.

Abstract: A programmable read only memory device according to the present invention has a plurality of memory cells each formed by, for example, a bipolar transistor or a series combination of a fuse element or a diode and associated with an addressing facility which has a plurality of row selector units coupled to word lines, respectively, and each of the row selector units has a decoder stage accompanied with an amplifying bipolar transistor and an output bipolar transistor coupled to the amplifying bipolar transistor for discharging a large amount of a write in current and a small amount of a read out current on the associated word line to the ground, wherein a diode is coupled between the associated word line and the amplifying bipolar transistor for supplying a part of the write in current through the amplifying bipolar transistor to the base node of the output bipolar transistor, so that the output bipolar transistor is decreased in transistor size by virtue of sharing the write in current between the collector n

Abstract: In a semiconductor memory device of the type having PNPN elements for transferring checking and programming currents to a memory cell, and a trigger circuit for activating the PNPN elements at a predetermined potential, a voltage limiting circuit is provided to activate the PNPN elements prior to achieving the triggering potential so that large voltage spikes through the memory elements during the memory checking operation can be prevented.

Abstract: A memory device is capable of operating in a power down mode in which peripheral memory circuitry is inactivated, the power down mode being assumed in response to an unselect signal at any one of a plurality of chip enable terminals. In response to a write potential at the output terminal of the memory, a detector circuit will leave the output circuit inactivated but will activate any peripheral circuitry necessary for the write operation.

Abstract: A channel level adjusting apparatus for equalizing the amplitude level of the received television signals of a plurality of channels. The channel level adjusting apparatus is designed so that when the input amplitude level of the television signals of a relatively small number or at least one channel is different from the more nearly equal or uniform input amplitude level of the television signals of the remaining relatively large number of channels, only the television signal or signals of the higher amplitude level are taken out, attenuated to a desired level and then combined, with a 180-degree phase difference, with the television signals of all the channels, thus making the television signal or signals of the higher input amplitude level more nearly equal in amplitude level to the television signal or signals of the lower input amplitude level and thereby generating the television signals of all the channels having relatively uniform amplitude levels.

Abstract: The present invention discloses an FM microwave radio frequency repeater using the straight-through system for relaying signals of a plurality of channels having different carrier frequencies, each of the channels including an auxiliary channel. The system according to the invention is characterized in that the auxiliary channel has the signals thereof demodulated through frequency discrimination of a difference frequency signal obtained by mixing together two received microwaves.

Abstract: In an alarm system utilizing a bidirectional wired television system, there are provided a plurality of alarm signal transmitters which are located on the subscriber's side, the signal transmitters generating low frequency signals of the frequencies common to respective group units, the frequencies being different for respective subscribers in respective group units, each alarm signal transmitter being provided for each subscriber, modulators for respective group units for modulating the low frequency signals from the alarm signal transmitters with different high frequency carrier signals, and a receiving panel for receiving the modulated signals.

Abstract: In a community TV receiving system in which television carrier signals are sent from a common community receiving antenna through a dividing box to respective TV receivers, all connected through coaxial cables, and an alarm system incorporated therein comprising alarm signal generators each having a resistance peculiar thereto connected to the coaxial cables across the core-tube circuit thereof in the vicinity of the respective receivers, and a common alarm receiver operable in response to the peculiar resistances located at a suitable station for indicating the signal generator location without interference to the TV signals.

Abstract: In a remote control system especially suitable to use as an alarm system utilizing the bidirectional transmission line of a wired television broadcasting system and including a plurality of low frequency signal transmitters, a plurality of group modulators for modulating high frequency carrier waves by a plurality of groups of low frequency signals from the transmitters to transmit the group modulated waves as super group signals over the transmission line, a plurality of group demodulators for group demodulating the super group signals into group modulated waves of discrete groups, a plurality of detectors for detecting the group signals from the group demodulators to derive out a plurality of low frequency signals, a plurality of resonators each resonating to a predetermined frequency component of the low frequency signals produced by the detectors, and a plurality of controlled apparatus connected to be controlled by the output from respective resonators, there is provided frequency converting means instal

Abstract: In an alarm system utilizing a bidirectional wired television system, there are provided a plurality of alarm signal generators which are located on the subscribers' side, the signal generators generating low frequency alarm signals of the frequencies common to respective group units, the frequencies being different for respective subscribers in respective group units, each alarm signal generator being provided for each subscriber's modulators for respective group units; modulators for respective group units for modulating the low frequency alarm signals from the alarm signal generators with different high frequency carrier signals, and a receiving panel for receiving the modulated alarm signals.