Abstract: A tire pressure monitoring ECU receives inputs indicative of identification (ID) codes, each of which is uniquely assigned to each sensor unit provided to each tire of a vehicle, via a bar code reader. It stores the ID codes and compares it with ID codes contained in signals from the sensor units, respectively. When the result of the comparison satisfies a predetermined condition, the stored ID code is registered as an ID code corresponding to the uniquely assigned ID code of the sensor unit.

Abstract: A transmitter mode switching apparatus switches a transmitter into an ID registration mode, while a receiver mode switching apparatus switches a receiver into an ID transmission mode (step S1). Then, a collation ID to be transmitted from the receiver is set based on an ID assigned inherently to the receiver (step S2). Subsequently, an ID transmitting apparatus of the receiver transmits the collation ID (step S3). An ID receiving apparatus of the transmitter receives the collation ID (step S4). An ID registration apparatus of the transmitter stores the received collation ID as a registered ID of the transmitter (step S5). After the ID registration is accomplished, the transmitter mode switching apparatus returns the transmitter to an ordinary mode, while the receiver mode switching apparatus returns the receiver to an ordinary mode (step S6).

Abstract: Provided is a tire air pressure monitoring system capable of grasping the tire positions where there are sensor units even in the case of tire rotation. In the tire air pressure monitoring system, a trigger signal is transmitted from a transmission coil antenna to only the corresponding sensor unit in a manner such that a magnetic field is used as a medium and, upon receipt of the trigger signal, the sensor unit measures a tire air pressure and others and transmits a transmission signal including the measurement values to a monitoring unit. The monitoring unit makes a decision on the tire position where there is the sensor unit on the basis of the transmission signal from the sensor unit.

Abstract: Provided is a tire air pressure monitoring system in which ID registration is automatically made while specifying a tire position to reduce the manpower of the registration operation and further to prevent mistaken registration. In this system, when an ignition switch is changed from an OFF state to an ON state to satisfy a tire position detection condition, a command is issued to a smart control unit so that a transmitter transmits an ID transmission request to an air pressure sensor, and the air pressure sensor returns ID data as a reply to the ID transmission request. The ID data received is collated with a previously registered ID and, if the result of the collation shows that the ID data pertains to the air pressure sensor of his/her own vehicle, the received ID data is registered as an ID related to a specific tire position.

Abstract: In a method for providing identification registration of a tire air pressure monitoring apparatus, an external equipment receives transmission data including the sensor identification from transmitters. The external equipment identifies the transmitter that transmitted the transmission data based upon the transmission data and registers the identified transmitter at the receiver.

Abstract: A tire pressure monitoring ECU receives inputs indicative of identification (ID) codes, each of which is uniquely assigned to each sensor unit provided to each tire of a vehicle, via a bar code reader. It stores the ID codes and compares it with ID codes contained in signals from the sensor units, respectively. When the result of the comparison satisfies a predetermined condition, the stored ID code is registered as an ID code corresponding to the uniquely assigned ID code of the sensor unit.

Abstract: A vehicle remote control system in which a plurality of users carry respective electronic keys that are assigned respective ID codes, for communicating with a vehicle-mounted control apparatus that periodically transmits a calling code followed by the ID codes in succession, in which an electronic key that is within communication range responds to its specific ID code by transmitting response data to the vehicle-mounted apparatus for thereby initiating a control operation, and in which when an electronic key responds, the corresponding ID code is made the first in the sequence of ID codes when the calling code and ID codes are next transmitted.

Abstract: Provided is a tire air pressure monitoring system capable of grasping the tire positions where there are sensor units even in the case of tire rotation. In the tire air pressure monitoring system, a trigger signal is transmitted from a transmission coil antenna to only the corresponding sensor unit in a manner such that a magnetic field is used as a medium and, upon receipt of the trigger signal, the sensor unit measures a tire air pressure and others and transmits a transmission signal including the measurement values to a monitoring unit. The monitoring unit makes a decision on the tire position where there is the sensor unit on the basis of the transmission signal from the sensor unit.

Abstract: The present invention relates to a sensor ID registration for a tire air pressure monitor including a sensor unit built in each of tires of a vehicle and a receiver mounted in a vehicle body for monitoring the in-tire air pressure. The registration is conducted through using a control unit and a registration unit, provided for each vehicle manufacturing line. A different control unit number is allocated to each of the control units and transmitted from the control unit to the receiver. Moreover, a specific number identical to the number is transmitted from the registration unit to the sensor unit and data including a sensor ID and the specific number is transmitted from the sensor unit. The receiver registers the sensor ID when the specific number and the control unit number agree with each other. This achieves accurate ID registration without registering an ID of another vehicle in error.

Abstract: Provided is a remote control system capable of preventing a key code from being deciphered when the key code is transmitted from a transmitter to a receiver to be registered. In the transmitter, in response to a specified switch operation, a k-th common key code in a table to be used for enciphering a key code is changed to a registration key code stored in advance so that a key code is enciphered through the use of the table including the registration key code. A transmission code is produced by adding a predetermined code to the enciphered key code and the transmission code signal is transmitted to the receiver. This prevents easy deciphering of the key code because the key code is transmitted in a state enciphered.

Abstract: Each transmitter transmits temperature/pressure data of an associated tire together with an ID assigned to each transmitter. A pneumatic tire pressure monitoring apparatus receives the temperature/pressure data, and inputs traveling condition specifying data which specifies traveling conditions of the vehicle. Then, the pneumatic tire pressure monitoring apparatus identifies IDs assigned to the transmitters of respective tires actually installed on vehicle wheels of its own vehicle based on the temperature/pressure data and the traveling condition specifying data, and registers the identified IDs into a memory of the pneumatic tire pressure monitoring apparatus.

Abstract: A system has a memory in a vehicle for registering an identification of a tire air pressure sensor device in the memory. The tire air pressure sensor device is provided for a tire of the vehicle. The system further comprises a receiving unit configured to receive an unlikely signal which is transmitted from the tire air pressure sensor device. The unlikely signal is unlikely to be transmitted therefrom under normal circumstances. The system also comprises a first registering unit configured to register the identification of the tire air pressure sensor device in the memory in response to the receive of the unlikely signal.

Abstract: Provided are an aromatic vinyl polymer resin composition capable of being molded into resin foam sheets having good surface smoothness and glossiness well balanced with the mechanical strength thereof even when the expansion ratio in molding is increased, and resin foam sheets and containers of the composition. The resin composition comprises (A) from 80 to 98% by mass of an aromatic vinyl polymer resin having a weight-average molecular weight measured through GPC of from 200,000 to 400,000, a ratio of weight-average molecular weight to number-average molecular weight ranging from 2.2 to 3.6, a number of branches of from 0.1 to 1.0 in one molecule having an absolute molecular weight of 1,190,000 measured through GPC-MALLS, and a melt flow rate of from 1.5 to 3.5 g/10 min, and (B) from 2 to 20% by mass of a styrene-diene block copolymer or its hydrogenate. This is molded into a resin foam sheet through extrusion foaming, and the sheet is thermoformed into containers.

Abstract: A controller drives a key interlock solenoid to lock a key so that the key cannot be pulled out of a key cylinder when a shift lever is not at a parking position or while an identification code is being sent to a transponder mounted in the key. Thus, the key cannot be pulled out of the key cylinder during the writing of the identification code in the transponder.

Abstract: The power feeding efficiency and the communicable range of an automatic answering system are improved in an automatic answering system using a transponder which performs code communication using amplitude modulation of a carrier with an electromagnetic coupling transponder mounted in a key or the like. In a transceiver for performing the code communication with the transponder via an antenna coil, a circuit for driving the antenna coil in a transceiver based on clock is implemented by a bridge-type complementary circuit of transistors. Thereby, driving current is increased. Meanwhile, a circuit for controlling the driving mode based on a write signal is implemented by a parallel circuit of a transistor to which a power-supply voltage is applied and a resistor. Thereby, a current corresponding to a resistance of the resistor flows through the antenna coil even during the minimum driving when the transistor is turned off, thus improving the power feeding efficiency and the communicable range of the system.

Abstract: The present invention is directed to a process for preparing a polycarbonate in accordance with an ester exchange reaction of a dihydroxy compound (A) and a carbonic acid diester (B) by adjusting, to 2 ppm or less, the concentration of oxygen in an atmosphere in which the ester exchange reaction is carried out.According to the present invention, there can efficiently be prepared the polycarbonate which is free from residence burn and which is excellent in hydrolysis resistance and color tone.

Abstract: A process for producing a branched polycarbonate which comprises using a branching agent containing 200 ppm or less of sulfur; a branched polycarbonate which is prepared by the interfacial method and contains 1.0 ppm or less of residual sulfur as an impurity; and a branched polycarbonate which is prepared by the melting method and contains 2.0 ppm or less of residual sulfur as an impurity; are provided. When the branched polycarbonate is produced by the interfacial method, the branched polycarbonate produced does not show deterioration in heat stability or cause mold corrosion. When the branched polycarbonate is produced by the melting method, the branched polycarbonate produced does not show deterioration in heat stability or in color tone.

Abstract: A process for producing a branched polycarbonate which comprises using a branching agent containing 200 ppm or less of sulfur; a branched polycarbonate which is prepared by the interfacial method and contains 1.0 ppm or less of residual sulfur as an impurity; and a branched polycarbonate which is prepared by the melting method and contains 2.0 ppm or less of residual sulfur as an impurity; are provided. When the branched polycarbonate is produced by the interfacial method, the branched polycarbonate produced does not show deterioration in heat stability or cause mold corrosion. When the branched polycarbonate is produced by the melting method, the branched polycarbonate produced does not show deterioration in heat stability or in color tone.

Abstract: A process for producing a polycarbonate, which comprises transesterifying, in the presence of an antioxidant, (A) a dihydroxy compound or a precursor thereof and (B) a carbonic acid diester having, as an impurity, a chlorine content derived from chloroformate group of at most 30 ppm, which is determined by subtracting the chlorine content extracted with water using ion chromatography from the total chlorine content contained in said carbonic acid diester determined by potentiometric titration.

Abstract: A polycarbonate-polyorganosiloxane copolymer comprising a repeating unit I represented by the general formula: ##STR1## a repeating unit II represented by the general formula: ##STR2## a structural unit III represented by the general formula: ##STR3## and a terminal group IV of polyhalogenophenoxy group represented by the general formula: ##STR4## wherein symbols in the formulae are the same as those described in the specification, is disclosed. Content of the repeating unit II based on the total of contents of the repeating unit I and the repeating unit II and content of the structural unit III based on the total of contents of the repeating unit I, the repeating unit II and the structural unit III are in specific ranges, respectively. Resin compositions comprising the polycarbonate-polyorganosiloxane copolymer and a resin, such as a polycarbonate, a fluororesin, a styrenic resin and the like, inorganic filler or pigment is also disclosed.