Telephone regulation system and portable telephone terminal device used in such a system
First Claim
1. A telephone regulation system to regulate usage of a telephone terminal that effects conversation through a wireless radio wave, each said telephone terminal having a function to disable and enable conversation through a wireless radio wave upon receiving through radio communication a predetermined first command and a predetermined second command, respectively, comprising:
- an approach recognition device to be provided at a neighborhood of an approach path to a predetermined region, transmitting said first command through a weak wave to a telephone terminal passing through said neighborhood and entering said predetermined region, and a departure recognition device to be provided at a neighborhood of a departure path from said predetermined region, transmitting said second command through a weak radio wave to a telephone terminal passing through said neighborhood to depart from said predetermined region, whereby communication by a telephone terminal using said wireless radio wave is regulated in said predetermined region.
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Accused Products
Abstract
A telephone terminal includes: a first radio frequency communication unit; a second radio frequency communication unit that communicates through a weak wave; an optical communication unit; a telephony unit; a first switch that selectively couples the first or the second radio frequency communication unit to the telephony unit in response to an externally applied command; a incoming call detecting circuit connected to the first switch; and a second switch that selectively enables communication by the telephony unit through the first radio frequency communication unit or the optical communication unit in response to an incoming call detected by the incoming call detecting circuit, depending on the status of the first switch.
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Citations
16 Claims
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1. A telephone regulation system to regulate usage of a telephone terminal that effects conversation through a wireless radio wave, each said telephone terminal having a function to disable and enable conversation through a wireless radio wave upon receiving through radio communication a predetermined first command and a predetermined second command, respectively, comprising:
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an approach recognition device to be provided at a neighborhood of an approach path to a predetermined region, transmitting said first command through a weak wave to a telephone terminal passing through said neighborhood and entering said predetermined region, and a departure recognition device to be provided at a neighborhood of a departure path from said predetermined region, transmitting said second command through a weak radio wave to a telephone terminal passing through said neighborhood to depart from said predetermined region, whereby communication by a telephone terminal using said wireless radio wave is regulated in said predetermined region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A telephone regulation system to regulate usage of a telephone terminal that carries out conversation using a wireless radio wave, comprising:
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a plurality of telephone terminals, each said telephone terminal having a function to disable conversation by a wireless radio wave upon receiving a predetermined first command through radio communication, an approach recognition device provided in a neighborhood of an approach path to a predetermined region to transmit said first command through a weak wave to a telephone terminal passing said neighborhood and entering said predetermined region, whereby conversation using said wireless radio wave by a telephone terminal is regulated in said predetermined region. - View Dependent Claims (10)
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11. A portable telephone terminal device comprising:
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first communication means for carrying out communication using a wireless radio wave, second communication means for carrying out communication using light, a telephone unit, and switch means for selectively coupling one of said first communication means and said second communication means with said telephone unit in response to a command received via said first communication means. - View Dependent Claims (12, 14, 16)
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13. A portable telephone terminal device comprising:
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a telephone circuit, a radio communication device, an optical communication device, and a communication interface selectively coupling one of said radio communication device and said optical communication device with said telephone circuit in response to a command received via said radio communication device.
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15. A method of regulating conversation by a portable telephone comprising the steps of:
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by communicating through a weak wave with a portable telephone set passing a boundary of a first region and a second region, maintaining a table of a telephone number of a portable telephone set present within said second region in a storage device, said portable telephone set being capable of communication by radio and communication by light, searching said storage device to determine whether a telephone number corresponding to said call is stored in said storage device in response to a call to a portable telephone from an external source through radio, calling a telephone set of the telephone number corresponding to said call in said second region using an optical communication device provided in said second region in response to determination that said telephone number corresponding to said call is stored in said storage device, and in response to a response from said portable telephone set towards the call carried out in said second region, relaying said call to said responding portable telephone set in said second region.
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Specification