Patents by Inventor Anantha Mekala

Anantha Mekala has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070019581
    Abstract: A technique for processing data carried by a Time Division Multiplexing (TDM) channel in a TDM network. A data stream associated with a TDM channel is monitored to determine if it contains data frames. If so, the channel associated with the data stream enters a clear channel mode which causes data in the data stream to be placed in packets for transfer over the packet network without being modified. Provided the data stream continues to carry data frames, the data stream stays in clear channel mode. After the data stream data no longer carries data frames, the channel exits clear channel mode.
    Type: Application
    Filed: July 19, 2005
    Publication date: January 25, 2007
    Applicant: Cisco Technology, Inc.
    Inventors: Anantha Mekala, Mehryar Garakani
  • Publication number: 20060268832
    Abstract: A technique for preserving information contained in a synchronization channel of a Time Division Multiplexing (TDM) frame across a packet network. Information contained in the synchronization channel of TDM frames is transferred over the packet network by a first gateway device that received the TDM frames. A second gateway device receives the synchronization channel information and places the information in one or more TDM frames. The TDM frames are transferred onto the TDM network.
    Type: Application
    Filed: May 26, 2005
    Publication date: November 30, 2006
    Applicant: Cisco Technology, Inc.
    Inventors: Anantha Mekala, George Ogagan
  • Publication number: 20060120347
    Abstract: A communication device such as a Voice over Internet Protocol (VoIP) gateway multiplexes data intended for multiple voice connections within a single IP packet. If it is known in advance that packets for multiple connections between a given Originating Exchange (OEX) and Terminating Exchange (TEX) will travel between the Originating Gateway and Terminating Gateway, voice samples are multiplexed into the same VoIP packet. This “cell multiplexing” is accomplished by adding a cell header field to each cell payload portion. The cell header field indicates at least a connection identifier, so that the terminating gateway can route the payload to the correct TEX trunk. The scheme permits greatly improved efficiency in the carrying of VoIP traffic, especially where efficient voice coders are used.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 8, 2006
    Applicant: Cisco Technology, Inc.
    Inventor: Anantha Mekala
  • Publication number: 20060083220
    Abstract: A communication device, such as a Voice over Internet Protocol (VoIP) gateway, determines a duration for Dual Tone Multi-Frequency (DTMF) tone portions of telephony signal. If the duration is less than a pre-determined amount, a minimum duration is enforced during DTMF playback at a remote end of a network connection connected to a destination gateway. Minimum playback duration can be enforced at the terminating gateway—however, the originatinggateway can also encode a DTMF packet with a minimum duration value. At the terminating receiver it is not always possible to playback exactly what happened at the originating point in the same time frame. One solution to is to, at the terminating gateway, drop the first portion of voice packets that overlap with the end portion of played back DTMF tones.
    Type: Application
    Filed: November 22, 2004
    Publication date: April 20, 2006
    Applicant: Cisco Technology, Inc.
    Inventors: Anantha Mekala, Subrahmanyam Kunapuli, Jason Kuhne, Salman Haider
  • Publication number: 20050074012
    Abstract: A system that packetizes telephone calls using loss-less codecs for transmission over a communication link. The system includes a call admission control mechanism that admits calls for transmission over the communication link. An adaptive system which monitors bandwidth usage and which dynamically provides a feedback loop to the CAC system. The bandwidth allocation for transmission of the calls and the admission of calls is based upon actual bandwidth usage conditions in the system.
    Type: Application
    Filed: October 6, 2003
    Publication date: April 7, 2005
    Inventors: Mehryar Garakani, Prasad Miriyala, Anantha Mekala, Jianping Huang