# Patent

## Title
Methods and apparatuses for monitoring attention of a user during a conference

## Abstract

In one embodiment, the methods and apparatuses detect devices participating in a conference; monitor the devices for an attribute corresponding to an attention level of each of the devices; and determine whether each device is active based on the attention level.

## Background
RELATED APPLICATIONS
The present invention is a continuation-in-part of U.S. patent application Ser. No. 11/172,239 filed Jun. 29, 2005, and U.S. patent application Ser. No. 10/946,562, filed on Sep. 20, 2004, which applications are incorporated herein by reference U.S. patent application Ser. No. 11/172,239 claimed the benefit of U.S. Provisional Patent Application Ser. No. 60/872,400 filed Sep. 20, 2004.


FIELD OF INVENTION
The present invention relates generally to monitoring attention of a user and, more particularly, to monitoring attention of a user during a conference.
BACKGROUND
There has been an increased use in conferences that are Internet or web-based to communicate with employees, vendors, and clients. During these conferences, information is typically exchanged between multiple participants. This exchanged information may include audio, graphical, and/or textual information. Often times the ongoing effectiveness of the conference depends on the participants paying attention in the conference. There are many reasons as to why the participant fails to pay attention in the conference. Several examples include exchanged information that is poorly designed, participants falling behind during the conference, lack of interest on the part of the participant, and technical difficulties that prevent the participant from following the conference.
SUMMARY
In one embodiment, the methods and apparatuses detect devices participating in a conference; monitor the devices for an attribute corresponding to an attention level of each of the devices; and determine whether each device is active based on the attention level.



BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate and explain one embodiment of the methods and apparatuses for monitoring attention of a user during a conference. In the drawings,
FIG. 1 is a diagram illustrating an environment within which the methods and apparatuses for monitoring attention of a user during a conference are implemented;
FIG. 2 is a simplified block diagram illustrating one embodiment in which the methods and apparatuses for monitoring attention of a user during a conference are implemented;
FIG. 3 is a simplified block diagram illustrating a system, consistent with one embodiment of the methods and apparatuses monitoring attention of a user during a conference;
FIG. 4 is an exemplary record for use with the methods and apparatuses for monitoring attention of a user during a conference;
FIG. 5 is a flow diagram consistent with one embodiment of the methods and apparatuses for monitoring attention of a user during a conference;
FIG. 6 is a flow diagram consistent with one embodiment of the methods and apparatuses for monitoring attention of a user during a conference;
FIG. 7 is a flow diagram consistent with one embodiment of the methods and apparatuses for monitoring attention of a user during a conference;
FIG. 8 is a flow diagram consistent with one embodiment of the methods and apparatuses for monitoring attention of a user during a conference;
FIG. 9 illustrates an exemplary screen shot showing one embodiment of the methods and apparatuses for monitoring attention of a user during a conference; and
FIG. 10 illustrates an exemplary screen shot showing one embodiment of the methods and apparatuses for monitoring attention of a user during a conference.



DETAILED DESCRIPTION
The following detailed description of the methods and apparatuses for monitoring attention of a user during a conference refers to the accompanying drawings. The detailed description is not intended to limit the methods and apparatuses for monitoring attention of a user during a conference. Instead, the scope of the methods and apparatuses for monitoring attention of a user during a conference is defined by the appended claims and equivalents. Those skilled in the art will recognize that many other implementations are possible, consistent with the present invention.
References to a “device” include a device utilized by a user such as a desktop computer, a portable computer, a personal digital assistant, a video phone, a landline telephone, a cellular telephone, and a device capable of receiving/transmitting an electronic signal.
References to a desktop are directed to an entire portion of a display area of a corresponding device.
References to a conference include a plurality of devices that are configured to exchange audio and/or video signals between devices.
References to a participant device include devices that are participating in the conference.
References to a presenter device include a device that is participant and shares content shared with other participants.
References to an attendee device include a device that is a participant and receives content shared by another participant device. The attendees are capable of view content that is offered by the presenter device. In some instances, the attendee devices are capable of modifying the content shared by the presenter device.
In one embodiment, the methods and apparatuses for monitoring attention of a user during a conference detects the attention of an attendee device during a conference. In one embodiment, different attributes of the attendee device that reflect the attention of the user of the attendee device are detected, recorded, and analyzed to determine whether the user of the attendee device is paying attention to the content associated with the conference. In one embodiment, by indicating the attention of the user of the attendee device, the attendee device may be prompted to pay attention. Further, the presenter device may be alerted to the attention status of the attendee devices. Additionally, the attention status for each of the attendee devices may be correlated to the content presented during the conference at predetermined times such that the attention of the attendee devices may be determined at any point during the conference.
FIG. 1 is a diagram illustrating an environment within which the methods and apparatuses for monitoring attention of a user during a conference are implemented. The environment includes an electronic device 110 (e.g., a computing platform configured to act as a client device, such as a computer, a personal digital assistant, and the like), a user interface 115, a network 120 (e.g., a local area network, a home network, the Internet, telephone network), and a server 130 (e.g., a computing platform configured to act as a server).
In one embodiment, one or more user interface 115 components are made integral with the electronic device 110 (e.g., keypad and video display screen input and output interfaces in the same housing such as a personal digital assistant. In other embodiments, one or more user interface 115 components (e.g., a keyboard, a pointing device such as a mouse, a trackball, etc.), a microphone, a speaker, a display, a camera are physically separate from, and are conventionally coupled to, electronic device 110. In one embodiment, the user utilizes interface 115 to access and control content and applications stored in electronic device 110, server 130, or a remote storage device (not shown) coupled via network 120.
In accordance with the invention, embodiments of monitoring attention of a user during a conference below are executed by an electronic processor in electronic device 110, in server 130, or by processors in electronic device 110 and in server 130 acting together. Server 130 is illustrated in FIG. 1 as being a single computing platform, but in other instances are two or more interconnected computing platforms that act as a server.
FIG. 2 is a simplified diagram illustrating an exemplary architecture in which the methods and apparatuses for monitoring attention of a user during a conference are implemented. The exemplary architecture includes a plurality of electronic devices 202, a server device 210, and a network 201 connecting electronic devices 202 to server 210 and each electronic device 202 to each other. The plurality of electronic devices 202 are each configured to include a computer-readable medium 209, such as random access memory, coupled to an electronic processor 208. Processor 208 executes program instructions stored in the computer-readable medium 209. In one embodiment, a unique user operates each electronic device 202 via an interface 115 as described with reference to FIG. 1.
The server device 130 includes a processor 211 coupled to a computer-readable medium 212. In one embodiment, the server device 130 is coupled to one or more additional external or internal devices, such as, without limitation, a secondary data storage element, such as database 240.
In one instance, processors 208 and 211 are manufactured by Intel Corporation, of Santa Clara, Calif. In other instances, other microprocessors are used.
In one embodiment, the plurality of client devices 202 and the server 210 include instructions for a customized application for monitoring attention of a user during a conference. In one embodiment, the plurality of computer-readable media 209 and 212 contain, in part, the customized application. Additionally, the plurality of client devices 202 and the server 210 are configured to receive and transmit electronic messages for use with the customized application. Similarly, the network 210 is configured to transmit electronic messages for use with the customized application.
One or more user applications are stored in media 209, in media 212, or a single user application is stored in part in one media 209 and in part in media 212. In one instance, a stored user application, regardless of storage location, is made customizable based on monitoring attention of a user during a conference as determined using embodiments described below.
FIG. 3 illustrates one embodiment of a system 300. In one embodiment, the system 300 is embodied within the server 130. In another embodiment, the system 300 is embodied within the electronic device 110. In yet another embodiment, the system 300 is embodied within both the electronic device 110 and the server 130.
In one embodiment, the system 300 includes a content detection module 310, an interface detection module 320, a storage module 330, an interface module 340, a control module 350, a duration module 360, a scoring module 370, and a record module 380.
In one embodiment, the control module 350 communicates with the content detection module 310, the interface detection module 320, the storage module 330, the interface module 340, the duration module 360, the scoring module 370, and the record module 380. In one embodiment, the control module 350 coordinates tasks, requests, and communications between the content detection module 310, the interface detection module 320, the storage module 330, the interface module 340, the duration module 360, the scoring module 370, and the record module 380.
In one embodiment, the content detection module 310 detects content that is utilized by the user in connection with the device. In one embodiment, the content is utilized in connection with multiple devices within a conference between multiple parties. For example, the conference may include a data conference, phone conference, or a video conference through a network, a phone line, and/or the Internet.
In one embodiment, the content is a document utilized within a conference. In another embodiment, the content is audio visual media that is utilized within a conference. In yet another embodiment, the content is represented by audio signals within a teleconference.
In one embodiment, the content detection module 310 detects the location of the content within each device. For example, the content detection module 310 is capable of detecting whether the content is currently being displayed on the device. Further, when there are multiple pieces of content on a particular device, the content detection module 310 is capable of detecting whether the content that is the subject of the conference is currently the priority content and shown on the display relative to the other pieces of content. For example, the subject of the conference is currently on top and shown on the display relative to other content.
In another embodiment, the content detection module 310 detects the size of the content that is being displayed on the device. For example, the content detection module 310 is capable of determining the size of the window that displays the content being utilized within the conference.
In yet another embodiment, the content detection module 310 detects the displayed location of the content that is the subject of the conference. For example, centrally positioned locations on a display device may be considered better locations for a user to view the content that is the subject of the conference. Similarly, locations that are on the periphery of the display device may be considered less desirable.
In one embodiment, the interface detection module 320 monitors input from various interface devices connected to devices that are participating in the conference. These various interface devices include a keyboard, a pointing device, a microphone, a telephone, a video camera, and the like.
In one embodiment, the interface detection module 320 detects when the cursor is moved within the device participating in the conference. In another embodiment, the interface detection module 320 monitors the voice transmissions originating from the device participating in the conference. In yet another embodiment, the interface detection module 320 detects any activity by the device participating in the conference.
For example, in one embodiment, the presence of input from the device participating in a conference indicates that the device is being actively utilized and that the user may be viewing the device.
In one embodiment, the storage module 330 stores a record including a list of attributes associated with the each device participating in a conference. An exemplary list of attributes is shown in a record 400 within FIG. 4.
In one embodiment, the interface module 340 receives a signal from one of the electronic devices 110. In one embodiment, the electronic devices 110 are participating in a conference. In another embodiment, the interface module 340 delivers a signal to one of the electronic devices 110.
In one embodiment, the duration module 360 monitors the duration of the interaction of the devices participating in the conference. For example, if one of the devices has the content located in a prominent location, then the duration module 360 monitors the length of time that the content is shown in the prominent location. In another example, the duration module 360 also monitors the duration of voice transmissions and/or use of other interface devices.
In another embodiment, the duration module 360 also monitors the frequency of interaction of the devices participating in the conference. If the device participating in the conference is frequently being utilized during the duration of the conference, there is a higher chance that a user of the device is viewing the device during the conference.
In one embodiment, the scoring module 370 receives information from the content detection module 310, the interface detection module 320, and the duration module 360. In one embodiment, the scoring module 370 determines the level of participation of the user of each device participating in the conference is considered active. In one embodiment, if the level of participation exceeds an arbitrary threshold, then the device is considered “active”. Similarly, if the level of participation is below an arbitrary threshold, then the device is considered “inactive”.
In one embodiment, the level of participation among each device is utilized to determine the level of participation for all participants within the conference.
In one embodiment, the record module 380 stores the conference. In one embodiment, the record module 380 stores the content that is presented during the conference. In another embodiment, the record module 380 stores the annotations and comments produced by the participants of the conference. In yet another embodiment, the record module 380 the activity levels of each of the devices participating in the conference.
In another embodiment, the record module 380 stores the participation values for each device participating in the conference and corresponding content that is the subject of the conference. In one embodiment, the participation values for each device are stored for a particular moment that corresponds with the same moment during the conference.
The system 300 in FIG. 3 is shown for exemplary purposes and is merely one embodiment of the methods and apparatuses for monitoring attention of a user during a conference. Additional modules may be added to the system 300 without departing from the scope of the methods and apparatuses for monitoring attention of a user during a conference. Similarly, modules may be combined or deleted without departing from the scope of the methods and apparatuses for monitoring attention of a user during a conference.
FIG. 4 illustrates an exemplary record 400 for use with the methods and apparatuses for monitoring attention of a user during a conference. In one embodiment, the record 400 illustrates an exemplary record associated with the participation of a particular device during a conference.
In one embodiment, there are multiple records such that each record 400 is associated with a particular device. Further, each device corresponds with multiple records wherein each record 400 for a particular device corresponds to a particular conference.
In one embodiment, the record 400 includes a content activity field 410, an interface activity field 420, a duration field 430, a scoring field 440, and an aggregated scoring field 450. In one embodiment, the record 400 resides within the storage module 330. In one embodiment, the record 400 describes a attributes detected through the system 300.
In one embodiment, the content activity field 410 includes information related to the content activity associated with the particular device during the conference. In one embodiment, the content activity field 410 indicates a time stamp when the content activity is detected through the content detection module 310. For example, a time stamp that describes when the content that is the subject of the conference is pushed to the background is recorded and stored within the content activity field 410.
In one embodiment, the interface activity field 420 includes information related to the interface activity associated with the particular device during the conference. In one embodiment, the content activity field 420 indicates a time stamp when the interface activity is detected through the content detection module 320. For example, a time stamp that describes when the cursor is utilized by a user of the particular device during the conference is recorded and stored within the interface activity field 420.
In one embodiment, the duration field 430 includes the length of time that corresponds to activity attributed from the content and/or the interface device associated with the particular device during the conference. In one embodiment, the duration field 430 receives information through the duration module 360.
In one embodiment, the scoring field 440 includes a score that represents a rating of both the duration and the activity level of the particular device during the conference. In one embodiment, the scoring field 440 receives information through the scoring module 370.
In one embodiment, the aggregated scoring field 450 includes a score that represents an overall rating of all the devices during the conference. In one embodiment, the overall rating is based on both the duration and the activity level of all the devices during the conference. In one embodiment, the aggregated scoring field 450 receives information through the scoring module 370.
The flow diagrams as depicted in FIGS. 5, 6, 7 and 8 are one embodiment of the methods and apparatuses for monitoring attention of a user during a conference. The blocks within the flow diagrams can be performed in a different sequence without departing from the spirit of the methods and apparatuses for monitoring attention of a user during a conference. Further, blocks can be deleted, added, or combined without departing from the spirit of the methods and apparatuses for monitoring attention of a user during a conference.
The flow diagram in FIG. 5 illustrates capturing activities occurring on a device that is participating on a conference according to one embodiment of the invention.
In Block 510, the content is detected. In one embodiment, the content is one of the items utilized within the conference. In one embodiment, the content is detected through the content detection module 310. For example, the manner in which the content is displayed on the device that is participating in the conference is detected. The manner in which the content is displayed includes the size of the content being displayed, the priority of the content (whether the content is displayed on the top-most window), and/or the position of the content within the display area. In another embodiment, the content is an audio signal that is detected from a particular device.
In Block 520, the interface is detected. In one embodiment, the interface input is detected from one of the devices participating in the conference.
In one embodiment, the interface input is detected through the interface detection module 320. For example, movement of the cursor, presence of an audio signal, or selection of items by devices during the conference is detected.
In Block 530, if interface input is detected, then the input activity is recorded within the Block 540. If no interface input is detected, then the absence of input activity is recorded within the Block 550.
In Block 530, if a change in the display of the content is detected, then the content activity is recorded within the Block 540. If no change in the display of the content is detected, then the absence of content activity is recorded within the Block 550.
In Block 560, a time stamp is applied to either the recordation of either activity or absence of activity. In one embodiment, the time stamp is accorded a real time of day such as 1:30 PM. In another embodiment, the time stamp is accorded a time relative to the conference such as 2 minutes 15 seconds into the conference. In either embodiment, the granularity of the time stamp may be adjustable. For example, the time stamp can occur every minute, every second, or every fraction of a second depending on the conference.
In one embodiment, the activity information that arises from the content detection module 310 and the interface detection module 320 are recorded within a record 400 of the storage module 330.
The flow diagram in FIG. 6 illustrates determining levels of activity from devices participating in a conference according to one embodiment of the invention.
In Block 610, activity information is received. In one embodiment, the activity information is recorded within FIG. 5.
In Block 620, the activity information associated with a device participating in the conference is compared against a predetermined threshold. In one embodiment, the predetermined threshold includes parameters from the content detection module 310, the interface detection module 320, and the duration module 360. In another embodiment, the predetermined threshold is measured in terms of the parameter corresponding with the scoring module 370.
In one embodiment, the predetermined threshold is assigned to differentiate between devices that show indication that they are active during the conference versus devices that show indication that they are inactive during the conference.
In one embodiment the predetermined threshold is based on a cumulative score over the period of the conference. In another embodiment, the predetermine threshold is based on a periodic score that is reset at particular intervals.
In Block 630, if the activity from a particular device participating in the conference exceeds the predetermined threshold, then the activity associated with the particular device is considered active and recorded in the Block 640.
In Block 630, if the activity from a particular device participating in the conference falls below the predetermined threshold, then the activity associated with the particular device is considered inactive and recorded in the Block 650.
In Block 660, the attendee device that falls below the predetermined threshold is notified. In one embodiment, the notification includes one of a buzzer sound from the attendee device, a visual indication on the attendee device, and the content that is the subject of the conference being placed in the forefront. In another embodiment, the attendee device is notified by a pop-up window notifying the user of the attendee device that additional attention is requested.
In another embodiment, the presenter device is also notified when the attendee device falls below the predetermined threshold.
The flow diagram in FIG. 7 illustrates displaying the status of the devices participating in a conference according to one embodiment of the invention.
In Block 710, current activity status of each device participating in the conference is received. In one embodiment, the current activity status is received during the conference. In one embodiment, the current activity status of a device may be either active or inactive. In one embodiment, the determination of whether the device is either active or inactive depends on factors such as content detection, interface detection, and duration of the content and/or interface detection. An exemplary determination of the current activity status is found in FIG. 6.
In Block 720, the current activity status of each device participating in the conference is displayed to one of the devices participating in the conference.
In one embodiment, the device that receives the displayed current activity status is the host or originator of the conference. In another embodiment, the device that receives the displayed current activity status is the current presenter of the conference; the presenter of the conference may change multiple times during the conference.
An exemplary screen shot illustrating a display of the current activity status for devices participating in the conference is shown in FIG. 10.
In Block 730, notification regarding the current activity status is received by one of the devices participating in the conference. In one embodiment, the notification indicates that a predetermined number of devices within the conference that are inactive. In another embodiment, the notification indicates that a predetermined percentage of devices within the conference that are inactive.
In one embodiment, the notification is presented to the device associated with current presenter in the conference. In another embodiment, the notification is presented to the device associated with host or originator of the conference.
In one instance, when a particular device associated with the current presenter receives a notification, then the current presenter is able to modify the presentation to other devices with the hope of increasing the number of devices that are actively participating in the conference.
The flow diagram in FIG. 8 illustrates displaying the status of the devices participating in a conference according to one embodiment of the invention.
In Block 810, the conference is recorded. In one embodiment, the comments made by various devices participating in the conference as well as the content presented during the conference is recorded. In one embodiment, a time is recorded simultaneously with the conference. For example, a time stamp is recorded periodically as the conference is also recorded. As an exemplary scenario, the time stamp periodically occurs every second. In one embodiment, the time stamp refers to the actual time such as 1:25:33 PM. In another embodiment, the time stamp is relative to the start time of the conference.
In Block 820, the activity status and the time stamp corresponding to the activity status is recorded. In one embodiment, the activity status of each device participating in the conference is recorded. An exemplary determination of the current activity status is found in FIG. 6.
In one embodiment, the activity status may change over the course of the conference. The activity status for each device may be recorded at a predetermined interval. The predetermined interval may range for a fraction of a second to multiple seconds.
In Block 830, the activity status for each device at a given time is correlated to the conference. In one embodiment, the time stamps corresponding to the activity status are matched with time stamps corresponding to the recorded conference. For example, the activity status for device # 3 at time t1 is matched to the content presented at the conference at the same time t1.
In Block 840, the activity status and content presented at the conference are displayed.
An exemplary screen shot illustrating the display of the current activity status for devices participating in the conference and the content presented at the conference are shown in FIG. 9.
FIG. 9 illustrates an exemplary screen shot 900 that shows one embodiment of the methods and apparatuses for monitoring attention of a user during a conference. In one embodiment, the screen shot 900 includes a visual display area 910, a time line 920, and an activity display 930.
In one embodiment, the visual display area 910 displays content utilized during the conference. In one embodiment, the content is textual, graphical, audio, and/or video. Further, the content may be annotations, conversations, and content presented during the conference.
In one embodiment, the time line 920 graphically displays a timing diagram that shows the duration of at least a portion of the conference. In one embodiment, different times are shown on the time line 920 such as t0, t1, and t2. For example, t0 may represent the beginning of the conference, and t2 may represent the termination of the conference. In one embodiment, a marker 921 shows a current time location of the conference. For example, the marker 921 associates the content displayed within the graphical display area 910 with a location of the conference.
In one embodiment, the activity display 930 graphically illustrates the percentage of devices that are actively participating in the conference. In this example, gradations of 100%, 50%, and 0% are shown. However, any number of intervals may be utilized without departing from the spirit or scope of the invention. In one embodiment, at times t0, t1, and t2, the activity display 930 highlights those participation percentages as milestone time periods. In one embodiment, the marker 921 shows the percentage of device participation at a particular time.
In another embodiment, the activity display 930 graphically illustrates the actual number of devices that are actively participating in the conference.
FIG. 10 illustrates an exemplary screen shot 1000 that shows one embodiment of the methods and apparatuses for monitoring attention of a user during a conference. In one embodiment, the screen shot 1000 includes a graphical display area 1010, a time line 1020, and an activity display 1030.
In one embodiment, the visual display area 1010 displays content utilized during the conference. In one embodiment, the content is textual, graphical, audio, and/or video. Further, the content may be annotations, conversations, and content presented during the conference.
In one embodiment, the time line 1020 graphically displays a timing diagram that shows the duration of at least a portion of the conference. In one embodiment, different times are shown on the time line 1020 such as t0, t1, and t2. For example, t0 may represent the beginning of the conference, and t2 may represent the termination of the conference. In one embodiment, a marker 1021 shows a current time location of the conference. For example, the marker 1021 associates the content displayed within the visual display area 1010 with a location of the conference.
In one embodiment, the activity display 1030 graphically identifies devices that are actively participating in the conference. In this example, pictorial representations 1031 of each device are shown. In one embodiment, a different color of the pictorial representations 1031 represents whether the device is actively participating or inactive. In another embodiment, a highlighted pictorial representation 1031 represents that the device is actively participating in the conference. However, any number of pictorial and/or textual representations may be utilized without departing from the spirit or scope of the invention.
In one embodiment, at times t0, t1, and t2, the activity display 1030 highlights those devices that are actively participating as milestone time periods. In one embodiment, the marker 1021 shows the devices that are actively participating at a particular time.
In another embodiment, the activity display 930 graphically illustrates the actual number of devices that are actively participating in the conference.
The foregoing descriptions of specific embodiments of the invention have been presented for purposes of illustration and description. The invention may be applied to a variety of other applications.
They are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed, and naturally many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the Claims appended hereto and their equivalents.

## Claims

1. A method comprising:
detecting, by a server, devices participating in a conference, wherein the devices are presented content conveyed over a network during the conference;
monitoring each of the devices for presence of an audio signal originating from any one of the devices and sent to other devices during the conference that represents a voice transmission from a user of the device at which the audio signal originated;
recording a representation of the audio signal from the devices as audio content of the conference;
recording timestamps indicative of respective times at which the presence of the audio signal is detected and at which absence of the audio signal is detected;
determining a level of attention to the conference of the user of each device from a measure of the presence and the absence of the audio signal;
determining an activity status of each device with respect to participating in the conference based on a comparison of the attention level of the user of the device with a predetermined threshold; and
displaying an indication of the activity status of each device in association with any corresponding timestamps.

2. The method according to claim 1 further comprising storing the attention level of the user of each device within a record associated with each device.

3. The method according to claim 1, wherein the attention level is based on a frequency of the presence and absence of the audio signal representing the voice transmission.

4. The method according to claim 1, wherein the attention level is based on a duration of the presence of the audio signal representing the voice transmission.

5. The method according to claim 1, wherein determining the attention level of the user further comprises determining the attention level of the user from at least one other attribute that indicates the attention level of the user of the device in addition to the presence and absence of the audio signal.

6. The method according to claim 5 further comprising:
generating a score descriptive of the attention level of the user of the device from the at least one other attribute and the presence and absence of the audio signal; and
determining the activity status of the device from the score.

7. A system, comprising:
a processor;
a storage device to store recorded audio content of a conference; and
a tangible, non-transient computer readable medium having instructions stored therein that when executed by the processor, activate the processor to:
store a record containing an attention attribute associated with a device participating in the conference and indicating a level of attention to the conference by the user of the device,
detect an audio signal originating from the device and sent over the network during the conference, the audio signal representing a voice transmission from the user of the device at which the audio signal originated, wherein presence and absence of the audio signal contributes to the attention attribute,
record a timestamp associated with the attention attribute upon detection of the audio signal,
generate a score indicating an activity status of the device based on the attention attribute, and
display a graphical time chart of the conference along with any timestamps previously recorded.

8. The system according to claim 7 wherein the storage module is configured to store the score for the device.

9. The system according to claim 7 wherein the interface detection module is further configured to detect the audio signal representing the voice transmission using an input to the device during the conference.

10. The system according to claim 7 further comprising a duration module configured to detect a duration over which the audio signal representing the voice transmission is present.

11. A system comprising:
a processor; and
a memory configured to store instructions that, when executed by the processor, configures the processor to:
store recorded audio content of a conference;
detect devices participating in a conference, wherein the devices are presented the content over a network during the conference;
monitor each of the devices for an audio signal originating therefrom and sent to other devices during the conference, the audio signal representing a voice transmission from a user of a contributing device, presence of the audio signal contributing to an attention level of the user that indicates attention to the content presented during the conference;
record a timestamp of the audio signal;
determine whether each device is active based on a comparison of a measure of the attention level of the user thereof with a predetermined threshold; and
display an indication of whether each device is active along with any corresponding indications of timestamps.

12. The system according to claim 11 wherein the instructions include instructions that when executed by the processor, implement a scoring module configured to weigh a plurality of attributes that contribute to the attention level of the user.

13. The system according to claim 11 wherein the instructions include instructions that when executed by the processor, implement a comparing module configured to compare the measure of the attention level with the predetermined threshold.

14. The system according to claim 7 wherein the interface detection module is further configured to detect the frequency of the audio signal representing the voice transmission.

15. The system according to claim 11 wherein the instructions for monitoring the voice transmission include instructions that when executed by the processor, configures the processor to capture the audio signal representing the voice transmission from each device during the conference.

16. The system according to claim 15 wherein the attention level is based on a frequency of capture of the audio signal representing the voice transmission from the contributing device during the conference.

17. The system according to claim 15 wherein the attention level is based on a duration of capture of the audio signal representing the voice transmission from the contributing device during the conference.

18. The method according to claim 1 further comprising:
determining whether each device is inactive based on a comparison of the attention level with the predetermined threshold; and
sending a notification to a device presenting the content during the conference in response to determining that the device is inactive.