Simultaneous transmission of an analog pots signal and a digital signal on a subscriber line
First Claim
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1. A data communications apparatus for enabling a plurality of telephone-type services to be provided to a plurality of telephone-type devices connected to a single subscriber line, said apparatus comprising:
- circuitry connectable to at least one of said plurality of telephone-type devices wherein said circuitry enables said at least one of said plurality of telephone-type devices to operate using a frequency band higher than a plain old telephone system (POTS) frequency band on the subscriber line; and
interface circuitry attachable to said single subscriber line to enable said at least one of said plurality of telephone-type devices using said frequency band higher than said POTS frequency band to simultaneously share said single subscriber line with another one of said plurality of telephone-type devices that uses the POTS frequency band.
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Abstract
Apparatus and method for simultaneously providing multiple telephone-type services to any/all POTS-type devices on a single wire pair at a user premises. The present invention provides for the ability to add separately addressable POTS devices on a single service loop. This can be accomplished in at least two ways: first by the use of a multipoint protocol or second by Frequency Division Multiplexing.
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Citations
72 Claims
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1. A data communications apparatus for enabling a plurality of telephone-type services to be provided to a plurality of telephone-type devices connected to a single subscriber line, said apparatus comprising:
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circuitry connectable to at least one of said plurality of telephone-type devices wherein said circuitry enables said at least one of said plurality of telephone-type devices to operate using a frequency band higher than a plain old telephone system (POTS) frequency band on the subscriber line; and
interface circuitry attachable to said single subscriber line to enable said at least one of said plurality of telephone-type devices using said frequency band higher than said POTS frequency band to simultaneously share said single subscriber line with another one of said plurality of telephone-type devices that uses the POTS frequency band. - View Dependent Claims (2, 3, 4)
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5. A method for use in a data communications apparatus, said method comprising:
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providing a plurality of telephone-type services to a plurality of telephone-type devices connected to a single subscriber line using a frequency band higher than a plain old telephone system (POTS) frequency band; and
enabling said at least one of said plurality of telephone-type devices to operate using said frequency band higher than said POTS frequency band and attached to said data communications apparatus to simultaneously share said single subscriber line with another one of said plurality of telephone-type devices that uses the POTS frequency band. - View Dependent Claims (6, 7, 8)
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9. A data communications system comprising:
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a means for connecting to at least one of a plurality of telephone-type devices that uses a frequency band higher than a plain old telephone system (POTS) frequency band; and
a means for providing a plurality of telephone-type services to said plurality of telephone-type devices connected to a single subscriber line, said providing means enabling said at least one of said plurality of telephone-type devices attached to said data communications system to operate using a frequency band higher than a POTS frequency band to simultaneously share said single subscriber line with another one of said plurality of telephone-type devices that uses the POTS frequency band. - View Dependent Claims (10, 11, 12)
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13. A method, comprising the steps of:
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providing a first telephone-type service over a subscriber line in a plain old telephone system (POTS) frequency band; and
providing a second telephone-type service over the subscriber line in a frequency band that is higher than the POTS frequency band. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A central office wire center system, comprising:
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means for providing a first telephone-type service over a subscriber line in a plain old telephone system (POTS) frequency band; and
means for providing a second telephone-type service over the subscriber line in a frequency band that is higher than the POTS frequency band. - View Dependent Claims (22, 23, 24, 25)
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26. A system comprising:
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a subscriber line;
one or more first telephone-type devices connected to the subscriber line and communicating in a plain old telephone system (POTS) frequency band; and
one or more second telephone-type devices connected to the subscriber line and communicating in a frequency band that is higher than the POTS frequency band. - View Dependent Claims (27, 28, 29, 30)
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31. A system comprising:
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a subscriber line;
a first telephone-type device connected to the subscriber line;
a second telephone-type device designed to communicate in a frequency band above the plain old telephone system (POTS) frequency band; and
interface circuitry that interfaces the second telephone type-device to the subscriber line and enables the second telephone-type device to communicate in a frequency band that is higher than the POTS frequency band. - View Dependent Claims (32, 33, 34)
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35. Communication signals transmitted along a subscriber line in a communication system, the communication signals comprising:
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an analog plain old telephone system (POTS) signal within a first frequency band, the first frequency band comprising a range of frequencies for carrying POTS signals; and
a digital signal within a second frequency band, the second frequency band comprising a range of frequencies for carrying digital signals, the second frequency band having frequencies greater than the frequencies in the first frequency band;
wherein the analog POTS signal and the digital signal appear on the subscriber line simultaneously. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A communication system comprising:
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a subscriber premises having a subscriber line connected to a plurality of subscriber devices; and
a central office wire center comprising a plain old telephone system (POTS) splitter, a POTS switch, and a multipoint master modem, the POTS splitter connected to the subscriber line of the subscriber premises and further connected to the POTS switch and multipoint master modem of the central office wire center;
wherein a communication signal is communicated between the POTS splitter and the subscriber devices along the subscriber line, the communication signal comprising an analog POTS signal within a first frequency range and a digital signal within a second frequency range, the second frequency range comprising frequencies higher than the frequencies in the first frequency range. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A method of forming a communication signal, the method comprising the steps of:
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providing an analog plain old telephone system (POTS) signal on a subscriber line of a communication system, the analog POTS signal comprising a POTS signal within a first frequency band; and
simultaneously providing a digital signal on said subscriber line, the digital signal comprising digital data within a second frequency band, the second frequency band having frequencies different from the frequencies within the first frequency band.
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59. A central office wire center comprising:
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a plain old telephone system (POTS) splitter electrically connected to a subscriber line, the POTS splitter transmitting a first signal onto the subscriber line and receiving a second signal from the subscriber line;
a POTS switch connected to the POTS splitter;
a multipoint master modem connected to the POTS splitter;
one of the first and second signals comprising one of an analog POTS signal and at least one digital signal, the analog POTS signal having a POTS signal within a first frequency band, the at least one digital signal having digital data within a second frequency band; and
the other of the first and second signals comprising at least one digital signal within the second frequency band. - View Dependent Claims (60, 61, 62)
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63. A subscriber system located at a subscriber premises, the subscriber system comprising:
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a subscriber line in electrical communication with a central office of a communication system; and
a plurality of subscriber devices connected to the subscriber line, the subscriber devices comprising at least one plain old telephone system (POTS) device that transmits and receives analog POTS signals, the subscriber devices further comprising at least one digital device that transmits and receives digital signals;
wherein the analog POTS signals comprise POTS signals within a first frequency band, and the digital signals comprise digital data within a second frequency band, the second frequency band having frequencies greater than the frequencies in the first frequency band. - View Dependent Claims (64, 65, 66, 67, 68, 69, 70, 71, 72)
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Specification