Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Cell Phones

Devices-software-and-methods-for-measuring-packet-loss-burstiness-to-determine-quality-of-voice-data-transmission-through-a-network

Method and apparatus for increasing receiver immunity to interference

The process of the present invention adjusts the gain of a receive circuit, thereby improving a ...

Voice activity detector

What is claimed is: 1. A voice activity detector for detecting the presence of speech in an input ...

GPS receivers and garments containing GPS receivers and methods for using these GPS receivers

The present invention provides a GPS receiver having multiple GPS antennas which are coupled to one ...

Method and apparatus for determining the location of an object which may have an obstructed view of the sky

This invention concerns apparatus and methods for computing the location of a submerged or other ...

Hysteresis-free anti-saturation circuit

It is accordingly an object of the present invention to avoid saturation over a wide range of ...

GPS receiver utilizing a communication link

OF THE INVENTION This invention concerns apparatuses and methods for computing the position of a ...

Antenna switching technique for improved data throughput in communication networks

What is claimed is: 1. An apparatus for improved data throughput in a communication network; said ...

Method and apparatus for eliminating ionospheric delay error in global positioning system signals

The present invention utilizes a semi-codeless technique to obtain ionospheric delay measurements ...

Wireless communication system for adapting to frequency drift

OF THE PREFERRED EMBODIMENTS FIG. 1 illustrates a wireless communication system of the present ...

Reduction of time to first fix in an SATPS receiver

The invention focuses on initial acquisition (at the time of power-up), reacquisition (after loss ...

Devices, software and methods for measuring packet loss burstiness to determine quality of voice data transmission through a network

Details

Inventors: Jagadeesan, Ramanathan T.;
Assignee: Cisco Technology, Inc. (San Jose, CA)
Primary Examiner: Kizou; Hassan
Assistant Examiner: Sefcheck; Gregory B
Attorney, Agent or Firm: Marger Johnson & McCollom, P.C.

Devices, software, and methods measure a burstiness of packet loss episodes in transmissions of voice data through networks. At least one burstiness statistic is determined to quantify how the lost packets are distributed with respect to the received packets within the sequence. The burstiness statistic is optionally used to determine a figure of merit, which in turn can be used to give a grade for predicting how well a packet loss concealment scheme will work.

DETAILED DESCRIPTION The present invention overcomes these problems and limitations of the prior art.
Generally, the present invention provides devices, software, and methods for measuring a burstiness of packet loss episodes, in determining a quality of a voice transmission through a network.
More specifically, the invention teaches to determine a burstiness statistic, for quantifying how the lost packets are distributed with respect to the received packets within the sequence.
The burstiness statistic is optionally used to determine a figure of merit, which in turn can be used to give a grade for predicting how well a packet loss concealment scheme will work.
The invention finds applications in broadcasting through a network (such as internet radio) and network telephony.
The invention will become more readily apparent from the following Detailed Description, which proceeds with reference to the drawings, in which:

Related patents

	Method and apparatus for performing enterprise email management An enterprise email management system is disclosed. The enterprise mail system is designed to quickly and efficiently handle large volumes of email that is responded to ...
	Messaging agent and method for retrieving and consolidating messages The present invention features a method and system for retrieving and consolidating messages from various messaging services that are independent from one another. In ...
	System and method for providing status information from multiple information sources in a single display The present invention is a method for providing and displaying status information from multiple information providers, such as electronic mail servers and information ...
	Method and apparatus for adding data attributes to e-mail messages to enhance the analysis of delivery failures The present invention enables servers to send dummy e-mail messages to one another in order to receive status of e-mail identifications. The protocol layer is extended ...
	Power resource management system The present invention disclosed and claimed herein compromises a power management system for managing power distribution between an operating system and a recharging ...
	Dual conversion transmitter It is therefore an object of the present invention to provide an inexpensive transmitter. It is another object of the present invention to provide a transmitter ...
	GPS synchronized frequency/time source Generally speaking, the GPS-based frequency/time source of the present invention provides an accurate, traceable low-cost frequency/time reference. In particular, the ...
	Single-chip GPS receiver digital signal processing and microcomputer OF THE PREFERRED EMBODIMENT FIG. 1 illustrates a GPS digital integrated circuit (IC) embodiment of the present invention, referred to herein by the general reference ...
	Sync acquisition and tracking circuit for DS/CDMA receiver It is therefore an object of the present invention to provide a precision sync acquisition and tracking circuit for a direct sequence spread spectrum receiver. According ...
	Channel-independent equalizer device OF THE DISCLOSURE The present invention is primarily intended for use in cellular communication systems, although it will be understood by those skilled in the art that ...

0.034
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved