Cisco Technology, Inc.

Patrik Buckingham

Michael Edric Tasker

Christine Yu

Wen-hsiung Chen

Prasad Miriyala

Chandrodaya Prasad

Cherng-Daw Hwang

Wing-Kuen Chung

Haibin Sun

Systems and methods for image processing, comprising receiving a video frame, coding a first portion of the video frame at a different quality than a second portion of the video frame, based on an optical property, and displaying the video frame.

Telepresence system for 360 degree video conferencing

A method for routing integrated traffic from a remote site to a voice over packet system is disclosed. The method comprises receiving control signals at a virtual voice port of the voice over packet system. The method also comprises translating the controls signals to internal signals of the voice over packet system. Additionally, the method comprises transmitting data from the remote site to the virtual voice port and transferring the transmitted data form the virtual voice port to the physical port.

Virtual voice port configured to connect a switched voice call to a permanent voice call

In a telephony voice network having at least two connectable endpoint nodes with a trunk therebetween and a trunking alarm associated with each endpoint node, an alarm aggregation method is proposed. The method involves first detecting a trunking alarm associated with one of the endpoint nodes and second detecting a second trunking alarm associated with another of the endpoint nodes. The method aggregates the results of the first and second detecting to assist in determining a condition of the trunk between the two endpoint nodes. Such an out-of-service condition of the trunk may be signaled onto an outgoing T1/E1 connection coupled with the affected trunk. Preferably, plural connectable endpoint node pairs define plural ones of such trunks therebetween with each of the plural trunks having a trunking alarm associated with each endpoint node pair. In such a case, the first and second detecting and the first aggregating are performed for each of the plural trunks, and the method further involves second aggregating the plural results of the plural instances of the first aggregating. Invented alarm aggregation and conditioning apparatus preferably includes a trunk group including plural dedicated endpoint node pair connections, each endpoint node pair connection including a bi-directional alarm signaling mechanism, with the trunk group generating one or more alarms from each alarm signaling mechanism. The apparatus further includes an alarm aggregation mechanism coupled with the trunk group for aggregating one or more alarms generated by the trunk group into a trunk group alarm representing the condition of the trunk group.

Trunking alarm aggregation method and apparatus

A Multiservice Access Concentrator (MAC) receives a called number and matches the number against a destination-pattern index. A logical group of single access telephone numbers are associated to at least one voice port, wherein a logical group of candidate voice ports are formed. The logical group of candidate voice ports are sorted to form a sorted table. The sorting comprises using a prioritized sort criteria, wherein the sort criteria comprises sorting by explicit preference, longest telephone number match metric, local voice ports taking priority over network voice ports, administrative metrics of the network voice ports, time-of-last-use timestamp, and predefined order. Hunting for a voice port among a logical group of candidate voice ports is performed, wherein the logical group of candidate voice ports is distributed across at least one voice over packet-data-network system (VOPS). The VOPS comprises voice over Internet Protocol (IP) network systems, voice over Frame Relay network systems, voice over Asynchronous Transfer Mode (ATM) network systems, and voice over High-level Data Link Control (HDLC) network systems, but the embodiment is not so limited. Ringing of a telephone extension coupled to the voice port is performed.

Method and apparatus for voice port hunting of remote telephone extensions using voice over packet-data-network systems (VOPS)

A method and apparatus for link state determination in voice over frame-relay networks. In one embodiment, the present invention includes a method for determining link state for permanent calls in an FRF.11 voice over data network at the virtual voice channel level. This is a capability not present in FRF.11, which includes a management mechanism for determining link state of virtual circuits, but no mechanism for determining link state of virtual channels. One embodiment uses a standard FRF.11 signaling frame with a status indicator bit to signal that a channel is a primary operative channel or an alternate operative channel. The signaling frames are sent end to end through the network by an initiator device along a primary data path and all alternate data paths. If a primary or alternate path is operative, a reciprocator device returns the signaling frame along the operative path. The initiator determines by receipt or non-receipt of the signaling frames which paths are operative at any time. This allows the initiator to quickly detect primary path failure and switch to an operative alternate path.

Growing community of inventors

San Jose, CA, United States of America

Patrik Buckingham