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US 8,078,056 B2Granted
Multimedia distribution system using fiber optic lines
AssigneesVerizon Services Corp., Verizon Communications Inc.
InventorsJacob Needle, Dimitrios Kokkinos
Life of this patent
Estimating the term…
Abstract
Generating oscillator signals with which selected signals may be mixed. Such oscillator signals may be generated by dividing a pilot tone, such as a 120 MHz pilot tone found on many cable TV systems. Oscillator signals for demodulating received selected signals may be similarly generated.
Claims20
A method comprising:
- receiving selected downstream optical signals out of a plurality of downstream optical signals from an information distribution system, the selected downstream optical signals corresponding to elected services of a plurality of services, the selected services being selected from the plurality of services based upon customer subscription information;
- converting the selected downstream optical signals to electrical signals;
- transmitting the electrical signals to one or more connected devices based on the selected services, wherein each one of the selected services is associated with at least one of a plurality of device types;
- receiving a plurality of upstream electrical signals from at least one of the one or more connected devices at the subscriber premises;
- combining the upstream electrical signals;
- converting the upstream electrical signals to an upstream optical signal;
- and
- transmitting the upstream optical signal to the information distribution system.
5 more elements
A system comprising:
- a control unit configured to associate a signal with each of a plurality of services, each signal occupying a predefined frequency range;
- a switching device communicatively coupled to the control unit, the switching device being configured to select a subset of services of the plurality of services based on customer subscription information;
- a laser device communicatively coupled to the switching device, the laser device being configured to modulate each signal associated with the subset of services to a downstream optical signal;
- an optical fiber communicatively coupled to the laser device, the optical fiber being configured to transmit each downstream optical signal to a customer receiving device;
- and
- the customer receiving device being communicatively coupled to the optical fiber and configured to
- convert each downstream optical signal to at least one downstream electrical signal,
- associate each downstream electrical signal to at least one connected device;
- and
- transmit each downstream electrical signal to an associated device.
7 more elements
A method comprising:
- selecting a subset of services from a plurality of services based on customer subscription information;
- associating a signal with each of the plurality of services, each signal occupying a predefined frequency range;
- switching the signals corresponding to the subset of services;
- generating a modulated output from the signals corresponding to the subset of services;
- converting the modulated output into downstream optical signals;
- and
- transmitting the downstream optical signals to a remote device.
4 more elements
A system comprising:
- a control unit configured to associate a signal with each of a plurality of services, each signal occupying a predefined frequency range;
- a switching device communicatively coupled to the control unit, the switching device being configured to select a subset of services of the plurality of services based on customer subscription information;
- a laser device communicatively coupled to the switching device, the laser device being configured to modulate each signal associated with the subset of services to a downstream optical signal;
- an optical fiber communicatively coupled to the laser device, the optical fiber being configured to transmit each downstream optical signal to a customer receiving device;
- the customer receiving device being communicatively coupled to the optical fiber and configured to
- convert each downstream optical signal to at least one downstream electrical signal,
- associate each downstream electrical signal to at least one connected device, and
- transmit each downstream electrical signal to an associated device;
- an optical to electrical converter communicatively coupled to the optical fiber;
- and
- a plurality of demultiplexer-filter pairs communicatively coupled to the optical to electrical converter, the plurality of demultiplexer-filter pairs being configured to receive an upstream optical signal from a customer premises, wherein one of the demultiplexer-filter pairs is a telephony pair connected to a telephony path, the telephony pair including a digital to analog converter configured to convert a digital telephony signal to an analog telephony signal.
8 more elements
Dependencies are inferred from the claim text.