Radio telephone system control apparatus and method
First Claim
1. A radio telephone system control apparatus comprising:
- a plurality of radio telephone sets, each having a slave radio set;
a master apparatus connected to a subscriber line and including a master radio set which exchanges signals between said slave radio set in each of said radio telephone sets and said master apparatus;
means responsive to a call origination operation of any one of said radio telephone sets for sending a call originating signal from said slave radio set of a call originating one of said radio telephone sets to the master radio set of said master apparatus;
means responsive to said call originating signal for sending a channel designating signal to said slave radio set in each of said radio telephone sets from said master radio set of said master apparatus and for switching a radio channel of said master radio set of said master apparatus to said radio channel corresponding to said channel designating signal;
means responsive to said channel designating signal for switching the radio channel of the slave radio set in each of said radio telephone sets to that corresponding to said channel designating signal;
whereby connection control of said radio telephone set and a subscriber line is effected by a single master apparatus based on said call origination operation of any one of a plurality of radio telephone sets.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and an apparatus are disclosed for controlling a radio telephone system comprising a single master apparatus connected to a subscriber line and a plurality of radio telephone sets connected to the master apparatus by way of radio channel. When a call origination operation is made by one of the radio telephone sets, a call originating signal is sent to the master apparatus from the call originating radio telephone set. In response to the call originating signal, the master apparatus switches its radio channel to an idle speech channel, and sends a channel designating signal representing the idle speech channel to the plurality of radio telephone sets including the call originating radio telephone set so as to switch the radio channels of the radio telephone sets which have received the channel designating signal to the idle speech channel.
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Citations
24 Claims
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1. A radio telephone system control apparatus comprising:
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a plurality of radio telephone sets, each having a slave radio set; a master apparatus connected to a subscriber line and including a master radio set which exchanges signals between said slave radio set in each of said radio telephone sets and said master apparatus; means responsive to a call origination operation of any one of said radio telephone sets for sending a call originating signal from said slave radio set of a call originating one of said radio telephone sets to the master radio set of said master apparatus; means responsive to said call originating signal for sending a channel designating signal to said slave radio set in each of said radio telephone sets from said master radio set of said master apparatus and for switching a radio channel of said master radio set of said master apparatus to said radio channel corresponding to said channel designating signal; means responsive to said channel designating signal for switching the radio channel of the slave radio set in each of said radio telephone sets to that corresponding to said channel designating signal; whereby connection control of said radio telephone set and a subscriber line is effected by a single master apparatus based on said call origination operation of any one of a plurality of radio telephone sets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A radio telephone system control apparatus comprising:
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a plurality of radio telephone sets each having a slave radio set; a master apparatus including a master radio set connected to at least one subscriber line for exchanging signals between said master apparatus and the slave radio set in each of said radio telephone sets; means responsive to a call origination operation of any one of said radio telephone sets for sending a call originating signal to the master radio set of said master apparatus from the slave radio set of a call originating one of said radio telephone sets; means responsive to said call originating signal for detecting a state of use of a subscriber line connected to said master apparatus for sending an idle office line signal representing an idle subscriber line to said slave radio set of said call originating radio telephone set from said master radio set of said master apparatus; means responsive to said idle office line signal for displaying an idle subscriber line on said call originating radio telephone set; means for sending an office line designating signal from the slave radio set of said call originating radio telephone set to the master radio set of said master apparatus in accordance with a selection of the idle subscriber line of said call originating radio telephone set; means responsive to said office line designating signal for sending a channel designating signal to the slave radio set of said call originating radio telephone set from the master radio set of said master apparatus and for switching the radio channel of the master radio set of said master apparatus to a radio channel corresponding to said channel designating signal; thereby controlling the connection of a radio telephone set and a subscriber line corresponding to an office line designating signal with a single master apparatus in accordance with a call origination operation by any one of a plurality of radio telephone sets. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A radio telephone system control apparatus, comprising:
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a plurality of radio telephone sets, each including a slave radio set; a master apparatus including a master radio set connected to at least one wired telephone channel for exchanging signals between the slave radio set of said radio telephone sets and said master radio set; means responsive to a call origination operation by any one of said radio telephone sets for sending a call originating signal from said slave radio set in a call originating one of said radio telephone sets to the master radio set of said master apparatus; detecting means responsive to said call originating signal for detecting the state of use of a subscriber line connected to said master apparatus; means for sending a channel designating signal to the slave radio set of said radio telephonesets from the master radio set of said master apparatus when an idle subscriber line is detected by said detecting means; means for switching a radio channel of the master radio set of said master apparatus to a radio channel corresponding to said channel designating signal; means responsive to said channel designating signal for switching the radio channel of the slave radio set of said call originating radio telephone set to a radio channel corresponding to said channel designating signal, whereby the connection control, based on said call origination operation by any one of said radio telephone sets, between said call originating radio telephone set and a subscriber line is effected by a single master apparatus.
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21. A method of controlling a radio telephone system of the type wherein connections between a subscriber line and a plurality of radio telephone sets are controlled by a single master apparatus, said method comprising the steps of:
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sending a call originating signal from a call originating one of said radio telephone sets to said master apparatus when any one of said radio telephone sets originates a call; connecting a radio channel of said master apparatus and radio channels of all radio telephone sets to the same channel when a call originating signal is generated by said call originating radio telephone set; establishing a speech channel between said call originating radio telephone set and a subscriber line connected to said master apparatus.
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22. A method of controlling a radio telephone system of the type wherein connections between a subscriber line and a plurality of radio telephone sets are controlled by a single master apparatus connected to at least one subscriber line, said method comprising the steps of:
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sending a call originating signal to said master apparatus from a call originating one of said radio telephone sets when any one of said radio telephone sets originates a call; in response to said call originating signal, detecting a state of use of a subscriber line connected to said master apparatus; sending an idle office line signal representing an idle subscriber line to said call originating radio telephone set from said master apparatus; displaying said idle telephone channel in response to said idle office line signal in said call originating radio telephone set; sending an office line designating signal to said master apparatus from said call originating radio telephone set when an idle subscriber line for said call originating radio telephone set is detected; sending a channel designating signal to said radio telephone sets from said master apparatus in response to said office line designating signal; switching a radio channel of said master apparatus to a radio channel corresponding to said channel designating signal; switching the radio channel of said call originating radio telephone set to a radio channel corresponding to said channel designating signal in response to said channel designating signal; and establishing a speech channel between said call originating radio telephoneset and said selected subscriber line.
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23. A method of controlling a radio telephone system of the type wherein connections between a wired telephone channel and a plurality of radio telephone sets are controlled by a single master apparatus connected to at least one subscriber line, said method comprising the steps of:
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sending an origination signal to said master apparatus from a call originating one of said radio telephone sets in response to a call origination operation by any one of said radio telephone sets; detecting a state of use of said subscriber line connected to said master apparatus in response to said call originating signal; sending a channel designating signal to said radio telephone sets from said master apparatus when said idle telephone channel is detected; switching the radio channel of said master apparatus to a radio channel corresponding to said channel designating signal; and establishing a speech channel between said call originating radio telephone set and said detected idle subscriber line.
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24. A radio telephone system control apparatus comprising:
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a plurality of slave units, each including a first transmitting means for transmitting a call originating signal over a control channel in response to actuation by an operator; a master unit connected to an exchanger through at least one subscriber line and including at least one second transmitting means for transmitting a channel designating signal over said control channel; switching means provided in said master unit for autonomously switching said control channel to a speech channel designated by said channel designating signal in response to said call originating signal; and means responsive to said channel designating signal for switching said plurality of slave units from said control channel to a speech channel to establish two way voice communication with said master unit.
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Specification