Interactive data over voice communication system and method
AssigneeInline Connection Corporation
InventorsDavid D. Goodman, Robert Domnitz
Life of this patent
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Abstract
An interactive system and method for communicating data over a network of twisted pair wiring that is in active use as a conductive path for telephone signals. A first channel is used for transmission of data from a signal interface to a transceiver. The data is made available to the signal interface from an external source of information. The transceiver communicates data in the reverse direction of a second channel. The transceiver can sendcontrol signals upstream to indicate which audio/video content is to be sent back. Information communicated in the reverse channel can be received as a light signal, with the light signal recreated at the opposite end of the link.
Claims78
A system for communicating information comprising:
- a subsystem, a transceiver, a signal interface, and an information source,
- a path coupled to the subsystem and the transceiver, wherein the path is a two-wire conductive path;
- and
- a first branch coupled to the signal interface and a first point on the path, wherein the first branch is a two-wire conductive branch;
- wherein,
- the subsystem transmits a first voiceband signal onto the path, receives a second voiceband signal from the path, and is operable to process telephone signals;
- the signal interface receives a first information set from the information source and transmits onto the first branch a first signal that encodes the first information set;
- the transceiver receives a second information set and transmits onto the path a second signal that encodes the second information set;
- the transceiver receives the first signal from the path, and substantially recovers the first information set from the first signal;
- and
- the signal interface receives the second signal from the first branch and substantially recovers the second information set from the second signal;
- and
- wherein
- the power spectrum of the first signal is substantially confined within a first frequency band;
- the power spectrum of the second signal is substantially confined within a second frequency band;
- a highest frequency of the second frequency band is below a highest frequency of the first frequency band;
- and
- a lowest frequency of the second frequency band is above voiceband and below a lowest frequency of the first frequency band.
A method for communicating information comprising:
- transmitting a first voiceband signal onto a path and receiving a second voiceband signal from the path, wherein the path is a two-wire conductive path;
- transmitting onto the path a first signal while presenting a high impedance to voiceband signals on the path, the first signal encoding a first information set;
- transmitting onto the path a second signal while presenting a high impedance to voiceband signals on the path, the second signal encoding a second information set;
- receiving the first signal from the path and substantially recovering the first information set from the first signal;
- and
- receiving the second signal from the path, and substantially recovering the second information set from the second signal;
- and
- wherein
- the power spectrum of the first signal is substantially confined within a first frequency band, and the power spectrum of the second signal is substantially confined within a second frequency band;
- a highest frequency of the second frequency band is below a highest frequency of the first frequency band;
- and
- a lowest frequency of the second frequency band is above voiceband and below a lowest frequency of the first frequency band;
- and
- wherein
- the first signal, and the second signal are electrical signals.
Dependencies are inferred from the claim text.