Low noise multi-elevator communication system and method
First Claim
1. A process for connecting a speaker and microphone pair to a remote terminal over a telecommunications channel through a multi-user telecommunication system, the telecommunications channel having a telephone normally connected thereto, the process comprising the steps of:
- activating an initiation signal at the speaker and microphone pair;
disconnecting the telephone from the telecommunications channel responsive to the initiation signal;
sending a remote terminal signal to the multi-user telecommunication system with communication circuitry responsive to the initiation signal;
providing an audio signal with voice interface circuitry through the speaker during said sending step;
receiving an answer signal from the multi-user telecommunication system with the communication circuitry signifying that the remote terminal is contacted by the multi-user telecommunication system;
sending an identification code associated with the speaker and microphone pair with the communication circuitry across the multi-user telecommunication system to the remote terminal;
receiving an acknowledgment signal from the remote terminal with the communication circuitry indicating the remote terminal has received the identification code; and
connecting the speaker and microphone pair to the remote terminal by the telecommunications channel and through the multi-user telecommunications system.
7 Assignments
0 Petitions
Accused Products
Abstract
A system is provided for connecting multiple elevator (700-703) speaker/microphone pairs (114a-114d) to a remote terminal (750) via a standard telephone channel (50). The system comprises generating means (116) for generating an in-use signal from within one of the elevators indicating the use of the speaker/microphone pair in the elevator. The system also includes a dialing means (100a-100d) responsive to the generating means for dialing a number associated with the remote terminal on the standard telephone channel so as to contact the remote terminal. The system further includes first isolating means (200a-200d) for isolating all remaining speaker/microphone pairs from the standard telephone channel, and first connecting means (200a-200d) for connecting the in-use speaker/microphone pair to the standard telephone channel so as to connect the in-use speaker/microphone pair to the remote terminal.
21 Citations
39 Claims
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1. A process for connecting a speaker and microphone pair to a remote terminal over a telecommunications channel through a multi-user telecommunication system, the telecommunications channel having a telephone normally connected thereto, the process comprising the steps of:
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activating an initiation signal at the speaker and microphone pair; disconnecting the telephone from the telecommunications channel responsive to the initiation signal; sending a remote terminal signal to the multi-user telecommunication system with communication circuitry responsive to the initiation signal; providing an audio signal with voice interface circuitry through the speaker during said sending step; receiving an answer signal from the multi-user telecommunication system with the communication circuitry signifying that the remote terminal is contacted by the multi-user telecommunication system; sending an identification code associated with the speaker and microphone pair with the communication circuitry across the multi-user telecommunication system to the remote terminal; receiving an acknowledgment signal from the remote terminal with the communication circuitry indicating the remote terminal has received the identification code; and connecting the speaker and microphone pair to the remote terminal by the telecommunications channel and through the multi-user telecommunications system. - View Dependent Claims (2, 3, 4)
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5. A process for providing telecommunications service on a telephone line between a remote terminal and multiple speaker and microphone pairs, the telephone line having a telephone normally connected thereto, the process comprising the steps of:
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activating an initiation signal from an initiating speaker and microphone pair signifying use of the speaker and microphone pair; providing an audio signal through the speaker of the initiating speaker and microphone pair with voice interface circuitry during said activating step; disconnecting the telephone from the telephone line during said activating step; contacting the remote terminal via the telephone line responsive to the initiation signal by dialing with communication circuitry a telephone number for the remote terminal on the telephone line, the telephone number for the remote terminal being stored in a storage means remote from the initiating speaker and microphone pair; and connecting the initiating speaker and microphone pair to the telephone line so as to provide telecommunications service between the remote terminal and the initiating speaker and microphone pair. - View Dependent Claims (6, 7, 8, 9)
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10. A system for connecting a speaker and microphone pair to a remote terminal over a telecommunications channel through a multi-user telecommunication system, the telecommunications channel having a telephone normally connected thereto, the system comprising:
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means for activating an initiation signal at the speaker and microphone pair; means for disconnecting the telephone from the telecommunications channel responsive to the initiation signal; communication circuitry for sending a remote terminal signal to the multi-user telecommunication system responsive to the initiation signal; voice interface circuitry for providing an audio signal through the speaker during sending of the remote terminal signal; wherein the communication circuitry is further operable to receive an answer signal from the multi-user telecommunication system signifying that the remote terminal is contacted by the multi-user telecommunication system, to send an identification code associated with the speaker and microphone pair across the multi-user telecommunication system to the remote terminal, and to receive an acknowledgment signal from the remote terminal that the remote terminal has received the identification code; and means for connecting the speaker and microphone pair to the remote terminal through the multi-user telecommunications system. - View Dependent Claims (11, 12, 13)
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14. A system for providing telecommunications service on a telephone line between a remote terminal and multiple speaker and microphone pairs, the telephone line having a telephone normally connected thereto, comprising:
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means for activating an initiation signal from an initiating speaker and microphone pair signifying use of the speaker and microphone pair; means for disconnecting the telephone from the telephone line upon receipt of the initiation signal; communication circuitry for contacting the remote terminal via the telephone line responsive to the initiation signal; voice interface circuitry for providing an audio signal through the speaker of the initiating speaker and microphone pair while the communication circuitry contacts the remote terminal; and means for connecting the initiating speaker and microphone pair to the telephone line so as to provide telecommunications service between the remote terminal and the initiating speaker and microphone pair, - View Dependent Claims (15, 16, 17, 18, 37)
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19. A telecommunication system for connecting multiple elevators to a remote terminal with a single telephone line having a telephone normally coupled thereto, the system comprising:
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a first speaker and microphone pair located in a first elevator; a first elevator switch having two states; a first pair of signal lines connected to the first speaker and microphone pair, wherein the first pair of signal lines is included in a trailing cable for the first elevator; a second speaker and microphone pair located in a second elevator; a second elevator switch having two states; a second pair of signal lines connected to the second speaker and microphone pair, wherein the second pair of signal lines is included in a trailing cable for the second elevator; a first means for connecting the first pair of signal lines to the telephone line responsive to the first elevator switch changing states, the first means for connecting being located outside of the first elevator; a second means for connecting the second pair of signal lines to the telephone line responsive to the second elevator switch changing states, the second means for connecting being located outside of the first elevator; and a first means for disconnecting the telephone from the telephone line responsive to one of the first and second elevator switches changing states. - View Dependent Claims (20, 38)
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21. A process for connecting multiple elevator speaker and microphone pairs to a remote terminal via a standard telephone channel, the standard telephone channel having a telephone normally connected thereto, the process comprising the steps of:
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activating a speaker and microphone pair in-use signal from within one of the elevators; disconnecting the telephone from the telephone channel responsive to the in-use signal; dialing with communication circuitry, a telephone number for the remote terminal on the standard telephone channel wherein said dialing is responsive to said activating the in-use signal step; preventing with the communication circuitry the remaining elevator speaker and microphone pairs from connecting to the standard telephone channel responsive to said activating step and during said dialing step; and connecting the in-use speaker and microphone pair to the standard telephone channel after said dialing step. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A system for connecting multiple elevator speaker and microphone pairs to a remote terminal via a standard telephone channel, the standard telephone line having a telephone normally connected thereto, the system comprising:
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generating means for generating an in-use signal from within one of the elevators indicating the use of the speaker and microphone pair in the elevator; disconnecting means for disconnecting the telephone from the standard telephone line responsive to the in-use signal; communication circuitry responsive to said generating means for dialing a telephone number associated with the remote terminal on the standard telephone channel so as to contact the remote terminal; first isolating means for isolating all remaining speaker and microphone pairs from the standard telephone channel; first connecting means for connecting the in-use speaker and microphone pair to the standard telephone channel so as to connect the in-use speaker and microphone pair to the remote terminal. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 39)
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Specification