Abstract: The present invention enables a dial modem capable of simultaneous voice and data (SVD) operation and connected to a conventional telephone set to automatically select between SVD operation, analog voice operation and digital data operation when transmitting or receiving communication signals based on the position of the telephone set's hookswitch. The invention includes a hookswitch position detector, connected to the telephone set, for sensing the current position of the hookswitch, and a signal controller, connected to the hookswitch position detector. The signal controller may be configured to enable either of two hookswitch control option settings. The hookswitch control option settings determine the manner in which the controller responds to the current hookswitch position ("on-hook" or "off-hook") detected by the hookswitch position detector.

Abstract: An automatic locking/unlocking device has a wireless lock device which includes a lock, a first memory for storing a lock controlling code, a first transmitter for transmitting a wireless transmission signal, a first receiver for receiving a wireless reception signal, a lock control circuit for generating a pilot signal by controlling the first transmitter, for comparing a lock access code included in the wireless reception signal with the lock controlling code when the wireless reception signal is received, releasing the locking function of the lock if the lock access code is identical to the lock controlling code, and locking the lock after a predetermined time has elapsed; and a wireless key device which includes a second memory for storing the lock access code, a second transmitter for transmitting the wireless reception signal, a second receiver for receiving the pilot signal, and a key control circuit for transmitting the lock access code when the pilot signal is received.

Abstract: The pager has flexible sequencing of messages to the display. The sequencing of messages on the display is done either manually by switch actuation, automatically by a timed delay sequencing method, or by a combination of both. The method of message sequencing and the illumination of the display is controlled solely by the pager user and may be controlled by a single switch.

Abstract: A link detection circuit automatically terminates SCSI data transmission lines by use of a sense circuit which detects the absence or presence of an adjoining device or devices. The lines are automatically terminated at the ends with no user intervention. Wrong input/output cabling is precluded by use of a bi-directional link detection circuit. Detection is done without adding signal lines or disturbing buss functionality.

Abstract: A ring network system (1) has at least one node M which acts as a master or sender node to transmit an outgoing signal (O.S.1) having a relative address determined according to the relative location of the addressee node in the system. As the outgoing signal passes through each node in turn, it is changed and a node recognizes that it is the addressee node if the relative address has a predetermined common addressee value. The addressee node generates a return signal (R.S.1) with a node identifier which is transmitted in the opposite direction to the outgoing signal and the sender node ensures that this is received for a valid poll. The master node (M) may automatically configure itself by retrieving the identifier of all nodes in response to outgoing signals. This allows nodes to be easily added or deleted. Each node on the return path adds data which it has captured together with its identifier so that data may be captured from all nodes between the sender node and the addressee nodes.

Abstract: In automatic door locking apparatus and method for an automotive vehicle for locking and unlocking vehicle doors, a first timer unit in a controller starts a counting operation of a first set time period responsive to an unlock signal generated by a comparator so arranged as to compare a signal received by a receiver of a keyless entry system from a transmitter carried by an authorized operator operated to transmit a coded unlock signal with a preset code stored in a memory so as to determine whether the received code matches the preset code and, upon a match, to generate the unlock signal. When the first set time period is passed with no door of the vehicle opened, the automatic door locking is carried out via a door lock actuator to lock the vehicle doors.

Abstract: A radio scanning system using acoustical surface waves (SW radio scanning system) includes a transceiver unit and sensor elements defining at least one parameter to be scanned. The transceiver unit has a transmitter transmitting question signals to the sensor elements and a receiver receiving and evaluating answer signals transmitted back by the sensor elements. The transmitter and the sensor elements are constructed in such a way that the question signals and the answer signals are chronologically inverse to one another. The sensor elements have different SW transit times.

Abstract: A communication system includes a scanning receiver coupled to a first antenna, a plurality of repeaters coupled to a second antenna, wherein each repeater operable on any channel in a band, and a computer coupled to each repeater for controlling the operation of each repeater and coupled to the scanning receiver for obtaining traffic information from the receiver and storing the information in memory. The memory also contains a table of channels and station IDs, wherein a station ID is associated with a particular channel. Each repeater operates on an available channel, as indicated by the traffic information, using the station ID associated with the channel. The repeaters themselves can be used for obtaining traffic information, eliminating the scanning receiver. The repeaters do not have final amplifiers. Instead, a low level combining circuit couples the signals from each repeater to a single linear amplifier.

Abstract: In an audio paging apparatus and method for a cordless paging receiver for performing an alarm function in an audio signal during a cordless paging operation, the apparatus includes a receiver for receiving cordless paging information and converting the same into digital data, a memory for storing a self-address of the cordless paging receiver, a decoder for receiving and decoding the digital data, converting the same into the original data and outputting message data of cordless paging information if the same address as the self-address is input, a microcontroller for receiving data of the memory, processing data of the decoder and outputting an audio control signal, an alarm control signal and a display control signal in accordance with an output mode, an alarm unit for generating an alarm signal in accordance with the alarm control signal, a display unit for displaying a message of a paging party and state information of the cordless paging receiver in accordance with the display control signal, an audio p

Abstract: A method of reading multiple RFID tags located in a field of an interrogating antenna is based on periodic transmissions from the tags with large, non-transmission intervals between transmissions. The non-transmission intervals are fixed for a given tag, but are random between tags due to manufacturing tolerances in electrical components from which the tag is constructed, such that no coordination of transmissions from the interrogating antenna is required.

Abstract: Number of transmissions is counted for each of the destination telephone numbers and the transmission messages, and the counted number of transmissions is stored in association with the destination telephone number and the transmission messages. After the stored number of transmissions has exceeded a predetermined number, the reaching is notified at a predetermined interval. The telephone number, the transmission message and the number of transmissions are displayed concurrently with the notification, and DTMF signals are automatically produced by operation with keys.

Abstract: A wireless selective calling receiver performs an intermittent receiving operation in a channel lock state. The channel lock is canceled when a detected network information is judged to be different from the network information of the self receiver for a predetermined consecutive number of times. The channel lock is also canceled when such judgement is made and the detected network information remains the same at the time of the judgement.

Abstract: A system and method for monitoring the location and/or presence of an object/person within a desired area includes a mobile base station, a central control center, a mobile signaling device carried by the monitored object/person, and a geolocating means. The mobile base station may be transported to an arbitrary site and retains the monitored object/person within a desired area. The central control center determines the acceptability of the location of the monitored object/person and may raise an alarm condition when the monitored object/person is not within the desired area.

Abstract: A wireless interface device is adapted to be interfaced with a host computer. While the wireless interface device is connected to the host computer, the keyboard and mouse input devices of the host computer are locked out to prevent unauthorized access. Should the situation occur in which the user needs to access the host computer to which the wireless interface device is connected, the keyboard and mouse input devices can be re-enabled by way of a password.

Abstract: In a wireless selective calling receiver, after synchronization establishment, when a received frame synchronization signal or a received frame identifying signal fails to be detected, the intermittent receiving timing is determined based on an ideal frame identifying value which was produced at a preceding intermittent receiving timing. Further when the received frame identifying value is coincident with the ideal frame identifying value, the intermittent receiving timing is determined based on the ideal frame identifying value. And, a next ideal frame identifying value which should be received at a next intermittent receiving timing is produced based on the ideal frame identifying value and then is stored to be used at the next intermittent receiving timing.

Abstract: A multistage interconnection network capable of performing highly reliable communications with less hardware. In the multistage interconnection network for interconnecting a plurality of nodes, the first and final stages each have switches two times as large as the number of switches at an intermediate stage. Two output ports of each node are connected to the input ports of different first stage switches, and two input ports are connected to the output ports of final stage different switches. The input ports of switches of the intermediate stage are connected to the output ports of first stage different switches, and the output ports are connected to the input ports of final stage different switches. At least one output port of each switch at the first stage is directly connected to at least one input port of an optional switch at the final stage.

Abstract: A remote keyless entry apparatus is disclosed for use with a vehicle. The apparatus includes a receiving unit disposed within the vehicle and a key fob transmitter for transmitting a plurality of signals to the receiving unit. The transmitter includes a transmitting unit for transmitting the plurality of signals to the receiving unit, a control unit operatively connected to the transmitting unit for controlling transmission of the plurality of signals and a diagnostic gathering and storage unit electrically connected to the control unit for supplying diagnostic data to the control unit. Additionally, the transmitter includes a key fob unit selectively connected to the control unit and to the diagnostic unit. The arrangement is such that in a first operative disposition of the key fob unit, the key fob triggers the control unit so that a first signal of the plurality of signals is generated by the transmitter unit for reception by the receiving unit.

Abstract: In a radio pager which includes: a memory having a memory area for sequentially storing calling messages, and a message table which includes a first area and a second area and stores addresses of the memory area where calling messages are stored; and an operation panel which has a calling message delete key and an erased calling message recovery key, and displays calling messages stored in a selected address when an address of the memory area stored in the first area of the message table is selected, a method and apparatus for recovering an erased calling message includes: moving an address of the memory area where a calling message to be erased is stored among the addresses stored in the first area of the message table into the second area, while maintaining the storage of the calling message to be erased in the memory area when the calling message delete key is pressed; arranging the remaining addresses stored in the first area except for the address moved into the second area; and moving a selected address

Abstract: A radio paging receiver receives a paging signal including at least a paging number signal and a message signal which follows the paging number signal. The receiver detects a paging signal which is intended therefor, by comparing the received paging number signal with a pre-stored paging number signal. Upon detection of the intended paging signal, the receiver searches the received message signal for a specific message signal which satisfies a condition that is pre-stored in a RAM of the receiver. If the receiver finds a message signal satisfying the pre-stored condition, it displays the message signal and/or enables at least one of a speaker, an LED indicator and a vibrator according to notification information that is also pre-stored in the RAM. The message searching condition and the notification information are pre-stored in the RAM through a keyboard coupled to the receiver.

Abstract: A keyless locking system suitable for use in applications such as locking doors, enabling garage door openers, enabling industrial machine operation, enabling automotive ignition systems and the like. The locking system is comprised of a micro-controller, a keypad, application specific firmware, and operating mechanisms to unlock/enable or lock/disable a particular door, drawer, machine, etc.