Verizon Services Corporation

Other

Verizon Communications Inc.

Telesector Resources Group, Inc.

Jacob Needle

Dimitrios S Kokkinos

John D Beierle

William C G Ortel

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.

Multimedia distribution system using fiber optic lines

Methods and apparatus for generating local oscillation signals

A telecommunications system provides telephone services to subscriber locations over dedicated optical fibers which extend in a &ldquo;star&rdquo; configuration from a telephone central office. A transmultiplexer installed at the central office is connected between a digital switch and the optical fibers. The transmultiplexer has a plurality of FDM ports, each of which is connected to a respective one of the optical fibers. The transmultiplexer is connected by one or more TDM ports to the digital switch. Preferably, the transmultiplexer provides a concentrating function whereby the number of subscriber lines served by the transmultiplexer is greater than the total voice-grade channel capacity of the connection between the transmultiplexer and the digital switch.

Telecommunications system including transmultiplexer installed between digital switch and optical signal transmission fiber

A system for distributing multimedia information from a central office to a plurality of customer's premises each interconnected to the central office with a dedicated optical fiber includes a switch for transmitting a plurality of optical bands from the central office to each of the subscriber premises. The switch, being located in the central office and controlled by selection signals provided to or by the central office, selects a subset of first signals, either electrical or optical, and blocks others of the signals that are not contained within the subset so that the customer receives only the signals subscribed to by the customer. Each customer's premises has a receiver, coupled to the corresponding dedicated fiber, to detect the subset desired by the customer. Moreover, the system is arranged to transmit customer-specific signals in a downstream direction to the receiver, with each receiver being arranged to propagate upstream signals which are the counterparts to the customer-specific signals.

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Dix Hills, NY, United States of America

Jacob Needle