摘要:
A hands-free telephone conversation system includes a communication device having a microphone that receives a voice from a user, a speaker that outputs the other party's voice, a control unit that detects the status of the wireless communication, and a local wireless communication unit that wirelessly communicates with a relay device. The relay device includes a microphone that receives the voice from the user, a local wireless communication unit that wirelessly communicates with the communication device, a communication control unit that detects the status of the wireless communication, a microphone switch unit that switches the voice input reception of the microphone, and a network communication unit that sends and receives the voice to and from the other party's communication device through a network.
摘要:
A hands-free device includes a communication unit that obtains a Media Access Control (MAC) address of a portable terminal device from the portable terminal device, and an address storing unit that registers one of the MAC addresses that is obtained by the communication unit into the address storing unit itself in response to a registration trigger signal. The hands-free device also includes a control unit that reads the registered MAC address from the address storing unit and specifies a portable terminal device having the read registered address as a communication target device in response to a search trigger signal.
摘要:
An in-vehicle communication device 300 that automatically answers a caller device that sends a call when a telephone device 100 located in a vehicle receives the call comprising: in-vehicle sensors 311˜316 that detect vehicle conditions, a communication interface 340 for the telephone device 100, and a control device 380 that controls the telephone device 100 via the communication interface 340, wherein the control device 380 acquires the vehicle conditions which are detected by the in-vehicle sensors 311˜316, judges whether a driver's answering the call is dangerous or not based on the acquired vehicle conditions when the control device 380 detects the call to the telephone device 100, prepares an answer message including vehicle information that depends upon a running condition of the vehicle at the time when the driver's answering the call is judged to be dangerous, and sends the prepared answer message to the caller device.
摘要:
A communication system 10 is comprised of a communication device 11 and a relay device 12 that is connected to the communication device 11 by radio at close range and an other communication device 15 via a network and that relays a communication between the first device 11 and the other communication device 15. Such communication system 10 comprises local communicating units 112 and 121 and a network communicating unit 123 that detect a disconnection of a radio channel between the communication device 11 and the relay device 12 and a disconnection of a radio channel between the relay device 12 and the other communication device 15. The communication device 11 includes a notifying unit 113 that notifies a user of that a disconnection of which radio channel of a plurality of the radio channels is detected.
摘要:
Estimates of a position of a communication device after a specific time are determined according to a position detecting unit that detects a current position of the communication device, a communication status storage unit that stores communication status data indicating a wireless communication status at each position, and the position detected by the position detecting unit. The communication device includes a prediction unit that predicts the wireless communication status at the position with reference to the communication status data, and a prediction processing unit that executes a handling process for disconnection of the communication due to deterioration of the wireless communication status based on a prediction result by the prediction unit.
摘要:
A communication system, a vehicle-mounted communication system, a communication device, and a vehicle-mounted device, which can easily and simultaneously set plural devices which are connected by a network. A communication terminal (server) comprises a storage medium interface to or from which a storage medium can be inserted or removed, and each of a plurality of devices comprises a control means for controlling reading of setting information from the storage medium which has been inserted into the storage medium interface of the communication terminal (server) or writing of the setting information to the storage medium, via a network, and a setting part for setting the self-device on the basis of the setting information read from the storage medium.
摘要:
A method for producing a high-quality group-III element nitride crystal at a high crystal growth rate, and a group-III element nitride crystal are provided. The method includes the steps of placing a group-III element, an alkali metal, and a seed crystal of group-III element nitride in a crystal growth vessel, pressurizing and heating the crystal growth vessel in an atmosphere of nitrogen-containing gas, and causing the group-III element and nitrogen to react with each other in a melt of the group-III element, the alkali metal and the nitrogen so that a group-III element nitride crystal is grown using the seed crystal as a nucleus. A hydrocarbon having a boiling point higher than the melting point of the alkali metal is added before the pressurization and heating of the crystal growth vessel.
摘要:
A catadioptric lens system includes, in order of light travel: a first lens group that includes a concave mirror and a convex mirror and has a positive refractive power; a second lens group that is positioned on the image side of the concave mirror and has a negative refractive power; and a third lens group that has a positive refractive power, wherein the first lens group has a plurality of lenses on the image side of the concave mirror, and some lenses of the plurality of lenses are formed as a vibration-proof group so as to be movable in a direction perpendicular to an optical axis.
摘要:
The present invention relates to an ethylene-α-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an α-olefin having from 3 to 20 carbon atoms, wherein the copolymer has a melt flow rate of 0.01 to 100 g/10 min, a density of 860 to 970 kg/m3, a molecular weight distribution of 5.5 to 12, and an activation energy of flow of 50 to 100 kJ/mol, and when the maximum take-up rate of the copolymer at 150° C. is represented by MTV150 and the maximum take-up rate of the copolymer at 190° C. is represented by MTV190, MTV150 is 40 m/min or more, and the ratio of MTV150 to MTV190 is 1 or less.
摘要:
From the individual small areas of a conductor pattern arranged on the back side of a circuit board, there are individually extended leader patterns, which are midway led by through holes to the surface side of the circuit board. The individual leader patterns led to the surface side are connected with a terminal portion on the low-voltage side through jumper pads. The desired small areas are enabled to function by shorting the jumper pads with solder. The individual small areas are constituted to have a capacity of 1 pF, when caused to function, and they have such a capacity as a pattern capacitor as is proportional to the number of the shorted jumper pads.