# US 2014/0153429 A1 · Real-time monitoring of perceived quality of packet voice transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153429 A1 - Document ID: US20140153429A1 - Status: Published application - Kind: A1 - Application number: 14/171,588 - Filed: 2014-02-03 - Published: 2014-06-05 - Earliest claimed: 1998-12-24 - Assignees: Tekla Pehr LLC - Applicants: Tekla Pehr LLC - Inventors: William Christopher Hardy; Frank A. Mckiel, JR. - Web page: https://patentgrep.com/patent/US20140153429A1 ## CPC - H04M 7/0084: {Network monitoring; Error detection; Error recovery; Network testing} - H04M 3/2236: {Quality of speech transmission monitoring} - H04L 65/80: Responding to QoS - H04M 7/006: {Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer (H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42)} - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract The present invention is directed to a system and method for monitoring perceived quality of a packet-switched voice service in a network. The method includes the step of receiving a packetized voice communication via the packet-switched voice service. At least one objective measurement is obtained from the received packetized voice communication. User perceived quality of voice data is derived from the at least one objective measurement. The user perceived quality of voice data is provided to a user. The steps of receiving, obtaining, deriving, and providing are performed in real-time. ## Claims ### Claim at position 1 1-50. (canceled) ### Claim 51 An apparatus comprising: a transceiver comprising: a packet interface configured to: couple to a packet switched network; and process packet headers of a call over the packet switched network to obtain packet transmission statistical data; a codec configured to: receive a coded digital signal for the call from the packet interface; and decode and decompress the coded digital signal to create a digital audio signal; a quality analyzer of the transceiver configured analyze at least one of the packet transmission statistical data or the digital audio signal to obtain a quality measurement for the call over the packet switched network. ### Claim 52 (depends on 51) The apparatus of claim 51 wherein the quality analyzer is configured to analyze both the packet transmission statistical data and the digital audio signal to obtain the quality measurement. ### Claim 53 (depends on 51) The apparatus of claim 51 wherein the quality measurement comprises a distortion measurement. ### Claim 54 (depends on 53) The apparatus of claim 53 wherein the quality analyzer is further configured to report the distortion measurement to a sending transceiver through the packet interface to indicate reception quality. ### Claim 55 (depends on 51) The apparatus of claim 51 wherein the transceiver is further configured to send a signal to a receiving transceiver over the packet switched network; and the transceiver further comprises a far-end quality indicator configured to receive a distortion measurement from the receiving transceiver to indicate reception quality for the signal. ### Claim 56 (depends on 51) The apparatus of claim 51 wherein the quality analyzer configured to obtain the quality measurement comprises the quality analyzer configured to: obtain a set of objective measurements from at least one of the packet transmission statistical data or digital audio signal; and create one or more estimates for a perceived level of impairment for the call using the set of objective measurements. ### Claim 57 (depends on 56) The apparatus of claim 56 wherein the quality analyzer is further configured to transform the one or more estimates for the perceived level of impairment for the call into perceived impairment data. ### Claim 58 A method comprising: receiving a call over a packet switched network at a packet interface; processing packet headers of the call to obtain packet transmission statistical data; receiving a coded digital signal for the call at a codec from the packet interface; decoding and decompressing the coded digital signal with the codec to create a digital audio signal; and analyzing at least one of the packet transmission statistical data or the digital audio signal with a quality analyzer to obtain a quality measurement for the call over the packet switched network. ### Claim 59 (depends on 58) The method of claim 58 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal comprises analyzing both the packet transmission statistical data and the digital audio signal with the quality analyzer to obtain the quality measurement. ### Claim 60 (depends on 58) The method of claim 58 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain the quality measurement comprises analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain a distortion measurement. ### Claim 61 (depends on 60) The method of claim 60 further comprising reporting the distortion measurement with the quality analyzer to a sending transceiver through the packet interface to indicate reception quality. ### Claim 62 (depends on 58) The method of claim 58 further comprising: sending a signal over the packet switched network to a receiving transceiver with the packet interface; and receiving a distortion measurement from the receiving transceiver at a far-end quality indicator to indicate reception quality for the signal. ### Claim 63 (depends on 58) The method of claim 58 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain the quality measurement for the call over the packet switched network comprises: obtaining a set of objective measurements from at least one of the packet transmission statistical data or digital audio signal; and estimating a perceived level of impairment for the call using the set of objective measurements. ### Claim 64 (depends on 63) The method of claim 63 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain the quality measurement for the call over the packet switched network further comprises transforming the one or more estimates for the perceived level of impairment for the call into perceived impairment data. ### Claim 65 A tangible computer readable medium having instructions stored thereon that, in response to execution by a computing device, cause the computing device to perform operations comprising: receiving a call over a packet switched network at a packet interface; processing packet headers of the call to obtain packet transmission statistical data; receiving a coded digital signal for the call at a codec from the packet interface; decoding and decompressing the coded digital signal with the codec to create a digital audio signal; and analyzing at least one of the packet transmission statistical data or the digital audio signal with a quality analyzer to obtain a quality measurement for the call over the packet switched network. ### Claim 66 (depends on 65) The tangible computer readable medium of claim 65 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal comprises analyzing both the packet transmission statistical data and the digital audio signal with the quality analyzer to obtain the quality measurement. ### Claim 67 (depends on 65) The tangible computer readable medium of claim 65 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain the quality measurement comprises analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain a distortion measurement. ### Claim 68 (depends on 65) The tangible computer readable medium of claim 65 wherein the operations further comprise: sending a signal over the packet switched network to a receiving transceiver with the packet interface; and receiving a distortion measurement from the receiving transceiver at a far-end quality indicator to indicate reception quality for the signal. ### Claim 69 (depends on 65) The tangible computer readable medium of claim 65 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain a quality measurement for the call over the packet switched network comprises: obtaining a set of measurements from at least one of the packet transmission statistical data or digital audio signal; and estimating a perceived level of impairment for the call using the set of measurements. ### Claim 70 (depends on 65) The tangible computer readable medium of claim 65 wherein the analyzing at least one of the packet transmission statistical data or the digital audio signal with the quality analyzer to obtain the quality measurement for the call over the packet switched network further comprises transforming the one or more estimates for the perceived level of impairment for the call into perceived impairment data