Com21, Inc.

Arris International, Inc.

Paul A Gordon

Alireza Raissinia

Michael John Sabin

Sanford L Helton

Mark E Laubach

Malay M Thaker

Kathleen M Nichols

Bi-directional communications system in a CATV network utilizing cell-based Asynchronous Transfer Mode (ATM) transmissions. Packet data existing in any one of several different formats are first converted into ATM cells by a headend controller. Individual cells are then assigned a virtual connection by the headend controller. Based on the virtual connection, the cells can be prioritized and routed to their intended destinations. The cells are transmitted in a shared radio frequency spectrum over a standard cable TV network. A subscriber terminal unit demodulates the received RF signal and processes the cells for use in a computer. Likewise, computers may transmit packet data to their respective subscriber terminal units which are sent to the headend controller over the same CATV network. Hence, the present invention offers a flexible, effective, economic, and fully integrated multimedia bearer system granting immediate support for Internet services, traditional voice telephony, and digital video services over a CATV network.

Prioritized virtual connection transmissions in a packet to ATM cell

Growing community of inventors

Santa Clara, CA, United States of America

Paul A Gordon