US20170026587A1 - Usb-enabled audio-video switch - Google Patents
Usb-enabled audio-video switch Download PDFInfo
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- US20170026587A1 US20170026587A1 US15/284,623 US201615284623A US2017026587A1 US 20170026587 A1 US20170026587 A1 US 20170026587A1 US 201615284623 A US201615284623 A US 201615284623A US 2017026587 A1 US2017026587 A1 US 2017026587A1
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- audio
- video
- switch
- signals
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- G06F19/3418—
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H80/00—ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Definitions
- the following relates to electrical signal switching devices. It finds particular application to audio-video signal switching devices. More particularly, it is directed towards a controllable audio-video switch preferably via a Universal Serial Bus (USB) connection. However, other types of connections are also contemplated.
- USB Universal Serial Bus
- Conventional telemedicine includes the use of modern telecommunication and information technologies for the provision of clinical care to individuals located at a distance (e.g., at home, a nursing home, a retirement community, etc.) and to the transmission of information (e.g., messages, instructions, reminders, etc.) to provide that care.
- An exemplary telemedicine interaction may involve a store-and-forward form of telemedicine, a live form of telemedicine, and/or other forms of telemedicine.
- Store-and-forward telemedicine involves acquiring programming, data, images, video and/or audio and transmitting this information to an individual (e.g., a patient or medical specialist); it does not require the presence of the communicating parties at the same time and the bandwidth of the connection need not be high since latency is not an issue.
- Live telemedicine can be through television (e.g., via cable, satellite, etc.), computer (e.g., via dial-up, DSL (Digital Subscriber Line), cable modem, satellite, ISDN (Integrated Services Digital Network)), telephone, mobile telephone, etc.
- the live form of telemedicine typically requires the presence of the communicating parties at the same time and a high-bandwidth, low-latency connection for audio and/or video signals as well as tactile support.
- One such telemedicine system is the MotivaTM telemedicine system.
- This system is primarily used by the elderly (however, it is not limited thereto), many of whom have physicians and/or other health care providers cannot be certain, with conventional telemedicine systems, whether audio and/or video information is reaching patients in a timely manner.
- a telemedicine system in one aspect, includes an audio-video switch that receives at least two different signals and conveys at least one of the at least two different signals to an output device that presents it to a user.
- a control device monitors a position of the audio-video switch automatically controls the position to select which of the at least two different signals is passed through the audio-video switch to the output device in response to a signal from a remote source.
- the signals received from the remote source include medically related audio video message signals, which are input to the audio-video switch, and a control signal which causes the audio-video switch to select between passing the medically related audio-video message signals and other received signals to the output device.
- One advantage includes automatic switching of an audio-video switch to display messages to a user.
- Another advantage resides in external control of the audio-video switch.
- Another advantage resides in a simplified interconnection of the audio-video switch with power, display, and other electronic devices.
- FIG. 1 illustrates an exemplary audio-video switch.
- FIG. 2 illustrates an embodiment in which the AV switch includes input and output mechanisms that facilitate controlling the signal(s) that is passed to an output device.
- FIG. 3 illustrates an embodiment in which video and/or audio signals received by two or more inputs are provided to the output device.
- FIG. 1 illustrates a system 8 having an exemplary audio-video (AV) switch 10 .
- the AV switch 10 includes N inputs 12 1 , . . . , 12 1 , . . . , 12 N (collectively referred to herein as inputs 12 ) and M outputs 14 1 , . . . , 14 J , . . . , 14 M (collectively referred to herein as outputs 14 ), wherein I, N, J, and M are integers.
- Each of the inputs 12 is associated with one of composite video, s-video, RGB, component video or the like and includes corresponding connectors (e.g., BNC, RCA, s-video, wireless, etc.), which provide interfaces to one or more of suitable source devices 16 .
- Each of the outputs 14 is also associated with one of composite video, s-video, RGB, component video or the like and includes corresponding connectors (e.g., BNC, RCA, s-video, wireless, etc.), which provide interfaces for a suitable output device 18 .
- Source devices 161 , 162 , and 163 are illustrated; however, in other instances, more (e.g., up to N) or less source devices 16 may be connected to the AV switch 10 .
- suitable source devices 16 include, but are not limited to, a MotivaTM or other telemedicine receiver, a cable television receiver, a satellite receiver, a DVD player, a VCR player, a CD player, a computer, a digital camera, a digital video recorder, a control device, and the like.
- the output device 18 is connected to the AV switch 10 via the output 14 J. However, in other instances the output device 18 can be connected to one of the other outputs 14 of the AV switch 10 .
- Suitable output devices 18 include, but are not limited to, a television, a computer, a cell phone, a personal data assistant (PDA), a stereo system, a radio, and the like.
- PDA personal data assistant
- the source device 16 2 is a control device such as a telemedicine receiver, a computer, a cable box, etc.
- the control device 16 2 receives video and/or audio signals (e.g., messages, programs, warnings, instructions, movies, etc.) from a remote source via cable, satellite, phone line, RF signals or the like and with a transmitter 20 transmits the signals to the input 121 of the AV switch 10 .
- Control and/or power signals are also to the AV switch 10 , for example, through a communications port such as a USB port 22 or the like, as described in detail below.
- the video and/or audio signals may be routed through the AV switch 10 and presented to the user via the output device 18 .
- Typical audio and/or video input might include an instructional or motivational video for dealing with a medical condition, a reminder to take medications, a request to monitor physiological conditions, etc.
- the control signal may include a command that controls which input signal(s) received at the inputs 12 passes through the AV switch 10 to the output device 18 .
- the power signal powers the AV switch 10 .
- a user can communicate with the control device 16 2 through a communication interface 24 , which can include a TV remote, an alpha-numeric panel, a touch-screen display, a mouse, a roller ball, a digital pen, a microphone, various sensors (e.g., RF, IR, optical, etc.), and/or other input devices.
- user communications signals can be received by the AV switch 10 and communicated to the control device, e.g., via the USB port.
- the other source devices 16 1 and 16 3 provide video and/or audio signals to the AV switch 10 via the inputs 12 1 and 12 N , respectively.
- the signals received by the AV switch 10 (from the control device 16 2 , the source device 161 , the source device 16 N , etc.) are conveyed to a signal router 26 through various mediums (e.g., wire, conductive traces, wirelessly, optically, etc.).
- the signal router 26 includes video and audio switching circuitry 28 that selectively passes one or more of the received video and/or audio signals to the output device 18 based on a control command from a user or the control device 16 2 .
- a control component 30 controls the signal router 26 .
- the control device 16 2 sends control commands to the AV switch 10 that control the control component 30 .
- the control device 16 2 can communicate (uni or bi-directionally) with the control component 30 through a Universal Serial Bus (USB) port.
- USB Universal Serial Bus
- the USB port 22 of the control device 16 2 can be connected to a USB port 32 of the AV switch 10 through suitable media (e.g., a USB cable, wirelessly, etc.).
- suitable media e.g., a USB cable, wirelessly, etc.
- other ports such as serial, parallel, infrared, optical, radio frequency, etc. are additionally or alternatively used for (uni or bi-directional) communication.
- the control device 16 2 can monitor the position of the AV switch 10 , take over control of the AV switch 10 , and automatically control it to ensure video and/or audio from the control device 16 2 is provided to the output device 18 for presentation to the user.
- the AV switch 10 can be controlled to provide programming from a different input.
- received programming or other audio/video signals can be stored in a (local or remote) recorder source device and played back when the output device 18 is turned on, at a selected time, on-demand, or the like. Recording and later playback facilitates converting low bandwidth signals from the remote source 34 into high quality displays or other outputs and/or reducing signal size (e.g., via compression) prior to storing and/or playing a recorded audio-video signal.
- control device 162 can also use the USB port 20 (and/or various other ports) to read information (e.g., a unique ID, a serial number, a software/firmware version, error logs, etc.) from the AV switch, write information (e.g., software/firmware updates, applications, etc.) to the AV switch 10 , and execute routines (e.g., diagnostics, etc.) within the AV switch 10 .
- information e.g., a unique ID, a serial number, a software/firmware version, error logs, etc.
- routines e.g., diagnostics, etc.
- the control commands sent by the control device 16 2 may originate with a health care provider/facility or other remote programming source 34 transmitting information to the control device 16 2 (e.g., via cable, satellite, a LAN line 36 , etc.).
- the information transmitted to the control device 16 2 includes the control command.
- the control device 16 2 may receive a control command that invokes the signal router 26 to pass the data (audio and/or video information) received at the input connected to the control device 16 2 through the AV switch 10 to the output device 18 through the output 14 J .
- control device 16 2 may receive a control command that invokes the signal router 26 to pass audio and/or video (e.g., an instructional video) received from a different one of the source devices 12 (e.g., a community health channel provided through a cable box) to the output device 18 .
- the information transmitted to the control device 16 2 by the source 34 or other source includes one or more messages. Examples of suitable messages include, but are not limited to, at least one of instructional programming relating to a disease or physiological condition, reminders to take medicines, reminders of medical appointments, requests to monitor physiological conditions, motivational programming, requests to call a doctor's office, instructions associated with a scheduled medical procedure, test results, and real-time communications from medical personnel.
- Reception of such message may invoke the control device 16 2 to send the control command (over the USB connection) to the AV switch 10 to control the signal router 26 accordingly.
- the received message(s) is sent to the AV switch by the control device 16 2 and routed through the signal router 26 to the output device 18 .
- the control command may also originate from the user.
- the user may manually enter a command at the control device 16 2 through an interface 24 .
- the user may use a remote control to send control commands to the control device 16 2 via the interface 24 . This enables the user to select among source devices, play or replay the information from the remote source, and the like.
- a security mechanism is provided in which a party (e.g., the user, a health care provider, a third party such as family, etc.) attempting to communicate with (e.g., control, convey audio-video to, convey messages to, etc.) the control device 162 and/or the AV switch 10 is validated prior to allowing such communication.
- a party e.g., the user, a health care provider, a third party such as family, etc.
- the control device 162 and/or the AV switch 10 is validated prior to allowing such communication.
- the control device 16 2 and/or the AV switch 10 may be programmed to only accept signals from a predetermined set of authorized health care facilities and/or individuals and/or other entities.
- a particular party desiring to communicate with (e.g., control, etc.) the control device 16 2 and/or the AV switch 10 may first have to provide identification indicia, an authorization code, a password, and the like that is validated by the control device 162 and/or the AV switch 10 before any such communication is allowed.
- Such validation could include comparing the received identification indicia, authorization code, password, etc. with stored authorized identification indicia, authorization code, password, etc.
- the party may attempt to communicate with the control device 16 2 and/or the AV switch 10 through local controls (e.g., knobs, buttons, touch screen, etc. residing on the control device 16 2 and/or the AV switch 10 ), a remote control (e.g., a universal wireless remote programmed to communicate with the control device 16 2 and/or the AV switch 10 ), voice activated controls (e.g., executing voice recognition software in connection with a microphone), the Internet, the source 34 , etc.
- local controls e.g., knobs, buttons, touch screen, etc. residing on the control device 16 2 and/or the AV switch 10
- a remote control e.g., a universal wireless remote programmed to communicate with the control device 16 2 and/or the AV switch 10
- voice activated controls e.g., executing voice recognition software in connection with a microphone
- the Internet e.g., a voice recognition software in connection with a microphone
- the predetermined set of authorized entities and information used for validation may be updated by an authorized entity such as the user adding a party (e.g., via a control panel, a wireless remote, voice controls, etc.), an authorized health care facility/provider writing to or overwriting (e.g., via downloading) previously stored authorization information via the source 34 , etc.
- an authorized entity such as the user adding a party (e.g., via a control panel, a wireless remote, voice controls, etc.), an authorized health care facility/provider writing to or overwriting (e.g., via downloading) previously stored authorization information via the source 34 , etc.
- Each received message may be associated with tag that indicates a priority of the corresponding message.
- the control device 16 2 can ascertain the relative importance of the message via the tag to determine whether the message should be presented to the user via the output device 18 or a notification (e.g.,. via the output device 18 or other visual and/or audio components) that a message has arrived, or whether the message should be stored for later retrieval without currently interrupting the user.
- Messages provided by health care providers/facilities can be associated with a relatively high priority in order to allow the control device 16 2 to take control over the AV switch 10 , overriding the user's source selection, and set the switch to display incoming messages from the control device 16 2 to the user at the output device 18 .
- one or more audio and/or video signals received by the inputs 12 can be provided to the output device 18 .
- the control component 30 can control the signal router 26 such that an audio and/or video signal conveyed from only one of the inputs 12 is passed through the AV switch 10 to the display device 18 .
- the user may initially select the audio and/or video signal that passes to the output device 18 .
- the control device 16 2 may also issue a control command to the control component 30 , instructing the control component 30 to switch the AV switch 10 such that the audio and/or video signals provided by the control device 16 2 are fed to the output device 18 .
- the control component 30 can switch the AV switch 10 back to the audio and/or video signal selected by the user after the user views/listens to the message.
- the control device 16 2 releases control of the AV switch 10 back to the control component 30 after a predetermined lapse of time, upon receiving an acknowledgement (e.g., electronic, audible, tactile, etc.) from the user that the message has been received, etc.
- an acknowledgement e.g., electronic, audible, tactile, etc.
- video and/or audio messages from the control device 16 2 can be concurrently presented with video and/or audio from at least one other source device 16 .
- a processing component 38 is used to combine the signals.
- a video message from the control device 16 2 may be superimposed as an overlay, a banner, a semi-transparent image (with a programmable and adjustable translucence), or the like over the video from one of the other source devices 16 by the processing component 38 , and the superimposed video may be provided to the output device 18 .
- the audio, if any, associated with the video from the control device 16 2 may override the audio associated with the video from the other source device 16 .
- the video and/or audio message from the control device 16 2 can be presented to the user along with another video signal.
- the processing component 38 is not used to combine signals and the video and/or audio messages from the control device 16 2 are provided to the output device 18 instead video and/or audio from one of the other source devices 16 .
- the different messages transmitted by the control device 16 2 may be associated with a similar or different priority levels such that some messages (e.g., an urgent announcement, etc.) are associated with relatively high priority levels that secure a transmission path dedicated for displaying messages at the output device 18 , some messages (e.g., a general announcement, etc.) are associated with lower priority levels in which superimposed signals are conveyed to the output device 18 , and some messages are associated with relatively low priority levels in which the user is prompted as to whether the message should be displayed now or stored for later retrieval.
- some messages e.g., an urgent announcement, etc.
- some messages e.g., a general announcement, etc.
- some messages are associated with relatively low priority levels in which the user is prompted as to whether the message should be displayed now or stored for later retrieval.
- one of the source devices 16 is a digital video recorder (DVR), a personal video recorder (PVR), or other device that allows a user to capture television or other video to a storage device for later viewing, or the like.
- DVR digital video recorder
- PVR personal video recorder
- the control device 16 2 may also provide power signals to the AV switch 10 through the USB connection between the USB port 22 and the USB port 32 . The power signals may be used to power at least a portion of the AV switch 10 .
- the AV switch is additionally or alternatively powered by a power supply (e.g., an AC to DC converter plugged into a wall mounted AV receptacle), a battery, a photocell, or the like.
- the control device 16 2 may also control power to the output device to turn the output device on, e.g., when a time-sensitive message is received.
- FIG. 2 illustrates an embodiment of the system 8 in which the AV switch 10 further includes input and output mechanisms that facilitate controlling the signal(s) passed through the AV switch 10 and monitoring the status of the AV switch 10 .
- FIG. 2 common components with FIG. 1 are denoted with the same reference number.
- the AV switch 10 can include a wireless communications port 40 .
- a user of the AV switch 10 can provide control commands to the control component 30 through this port.
- the control component 30 interprets such commands and controls the signal router 26 accordingly.
- the user may use a remote control or other wireless transmitter that is programmed to communicate with the port 40 of the AV switch 10 .
- the user can use the remote control to send various control commands such as a command that changes the input 12 that is fed to the output 14 j connected to the output device 18 .
- the communications port 40 and the remote control can include various communication technologies such as radio frequency (RF), infrared (IR), optical, etc. for communication.
- the AV 10 may additionally or alternatively include a control panel 42 with which the user can manually communicate with the AV switch 10 .
- the user can enter a control command through the control panel 42 to select the input 12 whose signal will pass through the AV switch 10 .
- the control panel 42 may be associated with various input/output mechanisms such as an alpha-numeric panel, a touch-screen, a mouse, a roller ball, a touch pad, a digital pen, a microphone to receive audible instructions, various sensors (e.g., RF, IR, optical, pressure, etc.), and/or other input devices.
- the AV 10 may additionally or alternatively include a presentation component 44 , which provides visual and/or audible feedback.
- the presentation component 44 can include a plurality of light emitting diodes (LEDs) and/or seven segment displays that indicate one or more of whether the AV switch 10 is receiving power, the type of power (e.g., converted AC, battery or photocell), whether data is being received at each of the inputs 12 , whether data is being conveyed through each of the outputs 14 , error codes, whether the AV switch 10 is being controlled by the control device 16 2 , whether a message is being broadcast through the output device 18 , etc.
- the presentation component 44 can additionally or alternatively include a flat panel display, a liquid crystal display (LCD), and the like to provide graphical and textual information, a speaker to provide audible information, etc.
- LCD liquid crystal display
- FIG. 3 illustrates an embodiment of the system 8 in which video and/or audio signals received by two or more of the inputs 12 and passed to two or more of the outputs 14 are provided to the output device 18 .
- the inputs 12 1 , 12 I and 12 N are illustrated as receiving audio and/or video signals.
- the output device 18 may include picture-in-picture or similar technology in which the display area of the output device 18 can be delineated into two or more independent regions, each that can present different video.
- only two of the outputs 14 1 and 14 J provide similar or different video and/or audio signals to the output device 18 .
- the control component 30 can control the signal router 26 to pass one audio and/or video signal to one of the outputs 14 , a different audio and/or video signal to a different one of the outputs 14 , etc.
- one of the viewing regions of the output device 18 is designated as a primary region and audio associated with this region is provided to the user.
- the other region(s) are deemed secondary and typically present video without the audio.
- the user can change which region is the current primary region. Some systems allow the user to select the audio output such that audio from a secondary viewing region is broadcast. Both of these changes can be achieved via the AV switch 10 through the communications interfaces 40 and/or 42 .
- the control device 16 2 can also change which audio and/or video signal is conveyed to the primary region and which audio and/or video signals are conveyed to the other regions of the output device 18 .
- the change is initiated by the reception of a message, which is subsequently provided to the user, by the control device 16 2 .
- a health care provider/facility may send a message to the user that informs the user that it is time to take a medication.
- the control device 16 2 may provide the message (e.g., which may include audio and/or video) to the input 12 1 of the AV switch 10 .
- another source device 16 may be providing audio and/or video to another of the inputs 12 .
- the control device 16 2 may send a control command to the AV switch 10 via the USB connection between the USB port 22 and the USB port 32 .
- the control command is conveyed to the control component 30 , which controls the signal router 26 to pass the message to the output 14 that feeds either the primary region or one of the secondary regions of the output device 18 .
- the other audio and/or video signal can be displayed in another viewing region.
- the message may be sent to the output 14 feeding the primary region and the picture-in-picture feature can be either disabled or the signal feeding the display regions can be temporarily terminated, or the message may be sent to the outputs feeding the primary and the secondary regions of the output device 18 such that all display regions present the message.
- the message may be sent to the output 14 feeding the primary region or an output 14 feeding a secondary region of the output device 18 .
- the selected programming can be switched to the secondary region which the message is displayed in the primary region. After the message is displayed, or, if the message calls for user action such as taking medication, after the signals that the action has been completed, the selected programming is returned to the primary region.
- the control component 30 can enable it to present the message within the primary or a secondary region.
- the user initiates the change in primary region through the communications port 24 and/or manual controls such as buttons, switches, knobs, etc. residing on the control device 16 2 .
Abstract
A telemedicine system (8) includes an audio-video switch (10) that receives at least two different signals and conveys at least one of the at least two different signals to an output device (18) that presents it to a user. A control device (16 2) monitors a position of the audio-video switch (10) and automatically controls the position to select which of the at least two different signals is passed through the audio-video switch (10) to the output device (18) in response to a signal from a remote source (34). Signals received from the remote source (34) include medically related audio video message signals, which are input to the audio-video switch (10), and a control signal that causes the audio-video switch (10) to select between passing the medically related audio-video message signals and other received signals to the output device (18).
Description
- This application is a continuation of U.S. patent application Ser. No. 12/278,342 filed Aug. 5, 2008 which is the National Stage of International Application No. PCT/US 2007/060620, filed Jan. 17, 2007, which claims the benefit of U.S. Provisional Application 60/765,628 filed Feb. 6, 2006, all of which are incorporated herein in whole by reference.
- The following relates to electrical signal switching devices. It finds particular application to audio-video signal switching devices. More particularly, it is directed towards a controllable audio-video switch preferably via a Universal Serial Bus (USB) connection. However, other types of connections are also contemplated.
- Conventional telemedicine includes the use of modern telecommunication and information technologies for the provision of clinical care to individuals located at a distance (e.g., at home, a nursing home, a retirement community, etc.) and to the transmission of information (e.g., messages, instructions, reminders, etc.) to provide that care. An exemplary telemedicine interaction may involve a store-and-forward form of telemedicine, a live form of telemedicine, and/or other forms of telemedicine. Store-and-forward telemedicine involves acquiring programming, data, images, video and/or audio and transmitting this information to an individual (e.g., a patient or medical specialist); it does not require the presence of the communicating parties at the same time and the bandwidth of the connection need not be high since latency is not an issue. Live telemedicine can be through television (e.g., via cable, satellite, etc.), computer (e.g., via dial-up, DSL (Digital Subscriber Line), cable modem, satellite, ISDN (Integrated Services Digital Network)), telephone, mobile telephone, etc. The live form of telemedicine typically requires the presence of the communicating parties at the same time and a high-bandwidth, low-latency connection for audio and/or video signals as well as tactile support.
- One such telemedicine system is the Motiva™ telemedicine system. This system is primarily used by the elderly (however, it is not limited thereto), many of whom have physicians and/or other health care providers cannot be certain, with conventional telemedicine systems, whether audio and/or video information is reaching patients in a timely manner. In view of the above, there is an unresolved need for improved techniques for the delivery audio and/or video information within a telemedicine system.
- In one aspect, a telemedicine system is illustrated. The telemedicine system includes an audio-video switch that receives at least two different signals and conveys at least one of the at least two different signals to an output device that presents it to a user. A control device monitors a position of the audio-video switch automatically controls the position to select which of the at least two different signals is passed through the audio-video switch to the output device in response to a signal from a remote source. The signals received from the remote source include medically related audio video message signals, which are input to the audio-video switch, and a control signal which causes the audio-video switch to select between passing the medically related audio-video message signals and other received signals to the output device.
- One advantage includes automatic switching of an audio-video switch to display messages to a user.
- Another advantage resides in external control of the audio-video switch.
- Another advantage resides in a simplified interconnection of the audio-video switch with power, display, and other electronic devices.
- Still further advantages will become apparent to those of ordinary skill in the art upon reading and understanding the detailed description of the preferred embodiments.
- The drawings are only for purposes of illustrating embodiments and are not to be construed as limiting the claims.
-
FIG. 1 illustrates an exemplary audio-video switch. -
FIG. 2 illustrates an embodiment in which the AV switch includes input and output mechanisms that facilitate controlling the signal(s) that is passed to an output device. -
FIG. 3 illustrates an embodiment in which video and/or audio signals received by two or more inputs are provided to the output device. -
FIG. 1 illustrates a system 8 having an exemplary audio-video (AV)switch 10. TheAV switch 10 includesN inputs 12 1, . . . , 12 1, . . . , 12 N (collectively referred to herein as inputs 12) andM outputs 14 1, . . . , 14 J, . . . , 14 M (collectively referred to herein as outputs 14), wherein I, N, J, and M are integers. Each of theinputs 12 is associated with one of composite video, s-video, RGB, component video or the like and includes corresponding connectors (e.g., BNC, RCA, s-video, wireless, etc.), which provide interfaces to one or more ofsuitable source devices 16. Each of theoutputs 14 is also associated with one of composite video, s-video, RGB, component video or the like and includes corresponding connectors (e.g., BNC, RCA, s-video, wireless, etc.), which provide interfaces for asuitable output device 18. - Three
source devices less source devices 16 may be connected to theAV switch 10. Examples ofsuitable source devices 16 include, but are not limited to, a Motiva™ or other telemedicine receiver, a cable television receiver, a satellite receiver, a DVD player, a VCR player, a CD player, a computer, a digital camera, a digital video recorder, a control device, and the like. Theoutput device 18 is connected to theAV switch 10 via the output 14J. However, in other instances theoutput device 18 can be connected to one of theother outputs 14 of theAV switch 10. Theparticular output 14 used depends on the type of connection (e.g., composite video, s-video, RGB, component video, etc.).Suitable output devices 18 include, but are not limited to, a television, a computer, a cell phone, a personal data assistant (PDA), a stereo system, a radio, and the like. - In this example, the
source device 16 2 is a control device such as a telemedicine receiver, a computer, a cable box, etc. Thecontrol device 16 2 receives video and/or audio signals (e.g., messages, programs, warnings, instructions, movies, etc.) from a remote source via cable, satellite, phone line, RF signals or the like and with atransmitter 20 transmits the signals to theinput 121 of theAV switch 10. Control and/or power signals are also to theAV switch 10, for example, through a communications port such as aUSB port 22 or the like, as described in detail below. The video and/or audio signals may be routed through theAV switch 10 and presented to the user via theoutput device 18. In some instances, only video is provided (e.g., textual messages). In other instances, only audio is provided (e.g., vocal recordings). In still other instances, a combination of video and audio (audio/video) are provided (e.g., a video recording with supporting sound). Typical audio and/or video input might include an instructional or motivational video for dealing with a medical condition, a reminder to take medications, a request to monitor physiological conditions, etc. - The control signal may include a command that controls which input signal(s) received at the
inputs 12 passes through theAV switch 10 to theoutput device 18. The power signal powers theAV switch 10. A user can communicate with thecontrol device 16 2 through acommunication interface 24, which can include a TV remote, an alpha-numeric panel, a touch-screen display, a mouse, a roller ball, a digital pen, a microphone, various sensors (e.g., RF, IR, optical, etc.), and/or other input devices. Optionally, user communications signals can be received by theAV switch 10 and communicated to the control device, e.g., via the USB port. Theother source devices AV switch 10 via theinputs - The signals received by the AV switch 10 (from the
control device 16 2, thesource device 161, thesource device 16 N, etc.) are conveyed to asignal router 26 through various mediums (e.g., wire, conductive traces, wirelessly, optically, etc.). Thesignal router 26 includes video andaudio switching circuitry 28 that selectively passes one or more of the received video and/or audio signals to theoutput device 18 based on a control command from a user or thecontrol device 16 2. - A
control component 30 controls thesignal router 26. In one instance, thecontrol device 16 2 sends control commands to theAV switch 10 that control thecontrol component 30. As depicted, thecontrol device 16 2 can communicate (uni or bi-directionally) with thecontrol component 30 through a Universal Serial Bus (USB) port. For example, theUSB port 22 of thecontrol device 16 2 can be connected to aUSB port 32 of theAV switch 10 through suitable media (e.g., a USB cable, wirelessly, etc.). In other instances, other ports such as serial, parallel, infrared, optical, radio frequency, etc. are additionally or alternatively used for (uni or bi-directional) communication. Through theport 22, thecontrol device 16 2 can monitor the position of theAV switch 10, take over control of theAV switch 10, and automatically control it to ensure video and/or audio from thecontrol device 16 2 is provided to theoutput device 18 for presentation to the user. - Alternately, the
AV switch 10 can be controlled to provide programming from a different input. For example, received programming or other audio/video signals can be stored in a (local or remote) recorder source device and played back when theoutput device 18 is turned on, at a selected time, on-demand, or the like. Recording and later playback facilitates converting low bandwidth signals from theremote source 34 into high quality displays or other outputs and/or reducing signal size (e.g., via compression) prior to storing and/or playing a recorded audio-video signal. In addition, thecontrol device 162 can also use the USB port 20 (and/or various other ports) to read information (e.g., a unique ID, a serial number, a software/firmware version, error logs, etc.) from the AV switch, write information (e.g., software/firmware updates, applications, etc.) to theAV switch 10, and execute routines (e.g., diagnostics, etc.) within theAV switch 10. - The control commands sent by the
control device 16 2 may originate with a health care provider/facility or otherremote programming source 34 transmitting information to the control device 16 2 (e.g., via cable, satellite, aLAN line 36, etc.). In one instance, the information transmitted to thecontrol device 16 2 includes the control command. For example, thecontrol device 16 2 may receive a control command that invokes thesignal router 26 to pass the data (audio and/or video information) received at the input connected to thecontrol device 16 2 through theAV switch 10 to theoutput device 18 through theoutput 14 J. In another example, thecontrol device 16 2 may receive a control command that invokes thesignal router 26 to pass audio and/or video (e.g., an instructional video) received from a different one of the source devices 12 (e.g., a community health channel provided through a cable box) to theoutput device 18. In another instance, the information transmitted to thecontrol device 16 2 by thesource 34 or other source includes one or more messages. Examples of suitable messages include, but are not limited to, at least one of instructional programming relating to a disease or physiological condition, reminders to take medicines, reminders of medical appointments, requests to monitor physiological conditions, motivational programming, requests to call a doctor's office, instructions associated with a scheduled medical procedure, test results, and real-time communications from medical personnel. Reception of such message may invoke thecontrol device 16 2 to send the control command (over the USB connection) to theAV switch 10 to control thesignal router 26 accordingly. In addition, the received message(s) is sent to the AV switch by thecontrol device 16 2 and routed through thesignal router 26 to theoutput device 18. - The control command may also originate from the user. For example, the user may manually enter a command at the
control device 16 2 through aninterface 24. In another example, the user may use a remote control to send control commands to thecontrol device 16 2 via theinterface 24. This enables the user to select among source devices, play or replay the information from the remote source, and the like. - In one instance, a security mechanism is provided in which a party (e.g., the user, a health care provider, a third party such as family, etc.) attempting to communicate with (e.g., control, convey audio-video to, convey messages to, etc.) the
control device 162 and/or theAV switch 10 is validated prior to allowing such communication. For instance, thecontrol device 16 2 and/or theAV switch 10 may be programmed to only accept signals from a predetermined set of authorized health care facilities and/or individuals and/or other entities. A particular party desiring to communicate with (e.g., control, etc.) thecontrol device 16 2 and/or theAV switch 10 may first have to provide identification indicia, an authorization code, a password, and the like that is validated by thecontrol device 162 and/or theAV switch 10 before any such communication is allowed. Such validation could include comparing the received identification indicia, authorization code, password, etc. with stored authorized identification indicia, authorization code, password, etc. - The party may attempt to communicate with the
control device 16 2 and/or theAV switch 10 through local controls (e.g., knobs, buttons, touch screen, etc. residing on thecontrol device 16 2 and/or the AV switch 10), a remote control (e.g., a universal wireless remote programmed to communicate with thecontrol device 16 2 and/or the AV switch 10), voice activated controls (e.g., executing voice recognition software in connection with a microphone), the Internet, thesource 34, etc. In one instance, communication from an unauthorized party is ignored. In this instance, information about the unauthorized party (e.g., obtained from the attempted communication) may be stored and/or sent to security and/or administrative authority for analysis. The predetermined set of authorized entities and information used for validation may be updated by an authorized entity such as the user adding a party (e.g., via a control panel, a wireless remote, voice controls, etc.), an authorized health care facility/provider writing to or overwriting (e.g., via downloading) previously stored authorization information via thesource 34, etc. - Each received message may be associated with tag that indicates a priority of the corresponding message. In this instance, the
control device 16 2 can ascertain the relative importance of the message via the tag to determine whether the message should be presented to the user via theoutput device 18 or a notification (e.g.,. via theoutput device 18 or other visual and/or audio components) that a message has arrived, or whether the message should be stored for later retrieval without currently interrupting the user. Messages provided by health care providers/facilities can be associated with a relatively high priority in order to allow thecontrol device 16 2 to take control over theAV switch 10, overriding the user's source selection, and set the switch to display incoming messages from thecontrol device 16 2 to the user at theoutput device 18. - As briefly stated above, one or more audio and/or video signals received by the
inputs 12 can be provided to theoutput device 18. For instance, thecontrol component 30 can control thesignal router 26 such that an audio and/or video signal conveyed from only one of theinputs 12 is passed through theAV switch 10 to thedisplay device 18. In this instance, the user may initially select the audio and/or video signal that passes to theoutput device 18. However, when thecontrol device 16 2 transmits information to theAV switch 10, thecontrol device 16 2 may also issue a control command to thecontrol component 30, instructing thecontrol component 30 to switch theAV switch 10 such that the audio and/or video signals provided by thecontrol device 16 2 are fed to theoutput device 18. Thecontrol component 30 can switch theAV switch 10 back to the audio and/or video signal selected by the user after the user views/listens to the message. In one instance, thecontrol device 16 2 releases control of theAV switch 10 back to thecontrol component 30 after a predetermined lapse of time, upon receiving an acknowledgement (e.g., electronic, audible, tactile, etc.) from the user that the message has been received, etc. - In another instance, video and/or audio messages from the
control device 16 2 can be concurrently presented with video and/or audio from at least oneother source device 16. Aprocessing component 38 is used to combine the signals. For example, a video message from thecontrol device 16 2 may be superimposed as an overlay, a banner, a semi-transparent image (with a programmable and adjustable translucence), or the like over the video from one of theother source devices 16 by theprocessing component 38, and the superimposed video may be provided to theoutput device 18. The audio, if any, associated with the video from thecontrol device 16 2 may override the audio associated with the video from theother source device 16. In this manner, the video and/or audio message from thecontrol device 16 2 can be presented to the user along with another video signal. In other instances, theprocessing component 38 is not used to combine signals and the video and/or audio messages from thecontrol device 16 2 are provided to theoutput device 18 instead video and/or audio from one of theother source devices 16. - The different messages transmitted by the
control device 16 2 may be associated with a similar or different priority levels such that some messages (e.g., an urgent announcement, etc.) are associated with relatively high priority levels that secure a transmission path dedicated for displaying messages at theoutput device 18, some messages (e.g., a general announcement, etc.) are associated with lower priority levels in which superimposed signals are conveyed to theoutput device 18, and some messages are associated with relatively low priority levels in which the user is prompted as to whether the message should be displayed now or stored for later retrieval. - In another instance, one of the
source devices 16 is a digital video recorder (DVR), a personal video recorder (PVR), or other device that allows a user to capture television or other video to a storage device for later viewing, or the like. When the user turns on the TV to watch a selected program, the control device causes a message recorded while the TV was off to be played while the selected program is recorded. After the message, the selected program is played back. As briefly discussed above, thecontrol device 16 2 may also provide power signals to theAV switch 10 through the USB connection between theUSB port 22 and theUSB port 32. The power signals may be used to power at least a portion of theAV switch 10. In another instance, the AV switch is additionally or alternatively powered by a power supply (e.g., an AC to DC converter plugged into a wall mounted AV receptacle), a battery, a photocell, or the like. Thecontrol device 16 2 may also control power to the output device to turn the output device on, e.g., when a time-sensitive message is received. -
FIG. 2 illustrates an embodiment of the system 8 in which theAV switch 10 further includes input and output mechanisms that facilitate controlling the signal(s) passed through theAV switch 10 and monitoring the status of theAV switch 10. InFIG. 2 , common components withFIG. 1 are denoted with the same reference number. - As depicted, the
AV switch 10 can include awireless communications port 40. A user of theAV switch 10 can provide control commands to thecontrol component 30 through this port. Thecontrol component 30 interprets such commands and controls thesignal router 26 accordingly. For example, the user may use a remote control or other wireless transmitter that is programmed to communicate with theport 40 of theAV switch 10. The user can use the remote control to send various control commands such as a command that changes theinput 12 that is fed to the output 14j connected to theoutput device 18. Thecommunications port 40 and the remote control can include various communication technologies such as radio frequency (RF), infrared (IR), optical, etc. for communication. - The
AV 10 may additionally or alternatively include acontrol panel 42 with which the user can manually communicate with theAV switch 10. For instance, the user can enter a control command through thecontrol panel 42 to select theinput 12 whose signal will pass through theAV switch 10. Thecontrol panel 42 may be associated with various input/output mechanisms such as an alpha-numeric panel, a touch-screen, a mouse, a roller ball, a touch pad, a digital pen, a microphone to receive audible instructions, various sensors (e.g., RF, IR, optical, pressure, etc.), and/or other input devices. - The
AV 10 may additionally or alternatively include apresentation component 44, which provides visual and/or audible feedback. For example, thepresentation component 44 can include a plurality of light emitting diodes (LEDs) and/or seven segment displays that indicate one or more of whether theAV switch 10 is receiving power, the type of power (e.g., converted AC, battery or photocell), whether data is being received at each of theinputs 12, whether data is being conveyed through each of theoutputs 14, error codes, whether theAV switch 10 is being controlled by thecontrol device 16 2, whether a message is being broadcast through theoutput device 18, etc. Thepresentation component 44 can additionally or alternatively include a flat panel display, a liquid crystal display (LCD), and the like to provide graphical and textual information, a speaker to provide audible information, etc. -
FIG. 3 illustrates an embodiment of the system 8 in which video and/or audio signals received by two or more of theinputs 12 and passed to two or more of theoutputs 14 are provided to theoutput device 18. For explanatory purposes, theinputs output device 18 may include picture-in-picture or similar technology in which the display area of theoutput device 18 can be delineated into two or more independent regions, each that can present different video. For explanatory purposes, only two of theoutputs output device 18. - The
control component 30 can control thesignal router 26 to pass one audio and/or video signal to one of theoutputs 14, a different audio and/or video signal to a different one of theoutputs 14, etc. Typically, one of the viewing regions of theoutput device 18 is designated as a primary region and audio associated with this region is provided to the user. The other region(s) are deemed secondary and typically present video without the audio. With conventional picture-in-picture technology, the user can change which region is the current primary region. Some systems allow the user to select the audio output such that audio from a secondary viewing region is broadcast. Both of these changes can be achieved via theAV switch 10 through the communications interfaces 40 and/or 42. - The
control device 16 2 can also change which audio and/or video signal is conveyed to the primary region and which audio and/or video signals are conveyed to the other regions of theoutput device 18. In one instance, the change is initiated by the reception of a message, which is subsequently provided to the user, by thecontrol device 16 2. For instance, a health care provider/facility may send a message to the user that informs the user that it is time to take a medication. Upon receiving such message, thecontrol device 16 2 may provide the message (e.g., which may include audio and/or video) to theinput 12 1 of theAV switch 10. Concurrently, anothersource device 16 may be providing audio and/or video to another of theinputs 12. Thecontrol device 16 2 may send a control command to theAV switch 10 via the USB connection between theUSB port 22 and theUSB port 32. The control command is conveyed to thecontrol component 30, which controls thesignal router 26 to pass the message to theoutput 14 that feeds either the primary region or one of the secondary regions of theoutput device 18. The other audio and/or video signal can be displayed in another viewing region. - In instances where the message is deemed critical, the message may be sent to the
output 14 feeding the primary region and the picture-in-picture feature can be either disabled or the signal feeding the display regions can be temporarily terminated, or the message may be sent to the outputs feeding the primary and the secondary regions of theoutput device 18 such that all display regions present the message. In instances where the message is deemed less important, the message may be sent to theoutput 14 feeding the primary region or anoutput 14 feeding a secondary region of theoutput device 18. For example, the selected programming can be switched to the secondary region which the message is displayed in the primary region. After the message is displayed, or, if the message calls for user action such as taking medication, after the signals that the action has been completed, the selected programming is returned to the primary region. In instances where picture-in-picture is not enabled, thecontrol component 30 can enable it to present the message within the primary or a secondary region. - In another instance, the user initiates the change in primary region through the
communications port 24 and/or manual controls such as buttons, switches, knobs, etc. residing on thecontrol device 16 2. - The invention has been described with reference to the preferred embodiments. Modifications and alterations may occur to others upon reading and understanding the preceding detailed description. It is intended that the invention be constructed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (16)
1. A telemedicine system, comprising:
an audio-video switch that receives a plurality of different audio-video signals and conveys at least two of the different audio-video signals to an output device that concurrently displays a video portion of the at least two audio-video signals, each within a different display region of the output device, the audio-video switch including at least one of a wireless communications port for controlling the audio-video switch with a remote wireless device and control panel for manual control of the audio-video switch; and
a control device including one or more processors programmed to:
monitor a position of the audio-video switch,
power the audio-video switch through a bus connection with the audio-video switch,
monitor and control the audio-video switch through signals conveyed via the bus,
obtain at least one of a unique identification, a serial number, a software versions, and a firmware version of the audio-video switch via a universal serial port,
automatically control the position of the audio-video switch to select which of the at least two different audio-video signals passed through the audio-video switch to the output device has its video portion displayed in each of the displays regions in response to a signal from a remote source, and
wherein the recorded audio/video signals include lessons tailored to address a user's medical condition and are received over a low bandwidth connection and converted into high quality outputs.
2. The telemedicine system as set forth in claim 1 , wherein the audio-video switch includes a processing component that combines at least two of the plurality of input audio-video signals, the two signals being combined by one of overlaying one of the signals over the other signal, the overlaid signals being passed to the output device to display both signals concurrently.
3. The telemedicine system as set forth in claim 1 , wherein the control device automatically switches the audio-video switch in order to present a message to a user via the output device and records programming on an input selected by the user and the audio-video switch automatically plays back the recorded programming after the user views/listens to the message.
4. The telemedicine system as set forth in claim 1 , wherein at least one of the plurality of different audio-video signals is associated with a tag that indicates a priority of the at least one signal relative to other audio-video signals and the priority is used to determine at least one of when and how to present the audio-video signal to the user.
5. The telemedicine system as set forth in claim 1 , further including:
a recording device connected with the audio-video switch, the control device causing the recording device to record audio/video signals and causing the recorded audio/video signals to be passed through the audio-video switch to the output device in accordance with instruction signals received from the remote source.
6. The telemedicine system as set forth in claim 5 , wherein the recorded audio/video signals are restored to full size prior to one of storing and playing the audio/video signal.
7. A telemedicine system including:
an audio-video switch which (a) has a plurality of audio-video inputs including a first audio-video input configured for receiving entertainment audio-video signals and a second video input configured for receiving medical audio-video signals, (b) has at least one audio-video output configured for connection to an audio/visual display device, and (c) has a router which selectively passes audio-video signals from the audio-video inputs to the audio-video output for display on the audio-video display device, the medical audio-video signals being received from a remote source and including:
at least one of instructional programming directed to a patient corresponding to the audio visual switch and relating to a disease or physiological condition of the patient, reminders to take medicines, reminders of medical appointments, requests for the patient to monitor physiological conditions, motivational programming, requests for the patient to call a doctor's office, instructions for the patient associated with a scheduled medical procedure, test results, and real-time communications to the patient from medical personnel, and
one of a plurality of control signals, the plurality including an override control signal that indicates that the router is to override a user selection and supply the medical audio-visual signals to the audio-visual display and a record control signal that indicates that the received medical audio-video signal should be recorded; and further including:
a control processor programmed to control the audio-video switch based on the received control signal, the control processor being connected with the router to control which of the entertainment and medical audio-video signals are supplied to the at least one audio-video output, the control processor being further programmed to respond in accordance with the received control signal from the remote source to:
control the router to override a user selection and supply the medical audio-visual signals to the audio-video display device, record the medical audio-video signal for later playback.
8. The telemedicine system as set forth in claim 7 , wherein at least one of the control processor and the audio-video switch validates parties attempting to communicate therewith and only authorized parties are allowed to communicate with the at least one of the control processor and the audio-video switch.
9. A telemedicine method comprising:
receiving a plurality of different audio-video signals with an audio-video switch, the audio-video signals including:
entertainment audio-video signals and medical audio-video signals from a remote healthcare provider which convey at least one of instructional programming relating to a disease or physiological condition, reminders to take medicines, reminders of medical appointments, requests to monitor physiological conditions, motivational programming, requests to call a doctor's office, instructions associated with a scheduled medical procedure, test results, and real-time communications from medical personnel, and
control commands which control the audio-video switch;
conveying a user-selected one of the received entertainment audio-video signals from the audio-video switch to a display device for display to the user;
with the audio-video switch, concurrently stopping the displaying of the user selected entertainment audio-video signals, and recording the user-selected entertainment audio-video signals, and conveying the medical audio-video signals to the display device for displaying; and
after the medical audio-video signal has been displayed and acknowledged by the user, automatically playing back the recorded user-selected entertainment audio-video signal, wherein the control processor is programmed to validate the audio-video switch via at least one of a unique identification number, a serial number, a software version, and a firmware version of the audio-video switch.
10. The method as set forth in claim 9 , further including:
conveying the control commands and electrical power to the audio-video switch over a common bus.
11. The telemedicine system as set forth in claim 10 , wherein the control processor is further programmed to, when controlling the router to supply the medical audio-video signal to the audio-video output, record the entertainment audio-video signal and after supplying the medical audio-video signal to the audio-video output, automatically supplying the recorded entertainment audio-video signal to the audio-video output.
12. The telemedicine system as set forth in claim 11 , wherein the control processor is further programmed to:
when controlling the router to supply the medical audio-video signal to the audio-video output, to record the entertainment audio-video signal and after supplying the medical audio-video signal to the audio-video output, automatically supplying the recorded entertainment audio-video signal to the audio-video output;
validate the audio-video switch via at least one of a unique identification number, a serial number, a software version, and a firmware version of the audio-video switch;
validate that the user is an authorized user;
in response to an unauthorized user trying to access the control device, send information about the unauthorized user to a security or administrative authority;
reconfigure a low bandwidth signal into a high quality display; and
wherein the control processor and the switch are connected by a common bus by which the control processor at least controls and powers the switch.
13. The method as set forth in claim 12 , further including controlling the audio-video switch in accordance with the received control command to:
allow the user to select between the medical and entertainment audio-video signals for display on the display device,
override the user selection and supply the medical audio-video signals to the display device at a time indicated by a tag in the audio-video signal,
record the medical audio-video signal for later playback by user selection.
14. The method according to claim 13 , further including:
with a control processor, validating the audio-video switch via at least one of a unique identification number, a serial number, a software version, and a firmware version of the audio-video switch.
15. The method as set forth in claim 14 , further including:
with the control processor, validating whether the user is an authorized user and only permitting the audio-video switch to convey the medical audio-video signals to the display device for the authorized user.
16. The method as set forth in claim 15 , further including:
in response to an unauthorized user trying to access the control device, sending information about the unauthorized user to a security or administrative authority.
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- 2007-01-17 EP EP07710161A patent/EP1985119B1/en not_active Not-in-force
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- 2007-01-17 AT AT07710161T patent/ATE506811T1/en not_active IP Right Cessation
- 2007-01-17 WO PCT/US2007/060620 patent/WO2007092660A1/en active Application Filing
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- 2007-01-17 DE DE602007014013T patent/DE602007014013D1/en active Active
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2016
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US20090051765A1 (en) | 2009-02-26 |
JP5490415B2 (en) | 2014-05-14 |
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EP1985119B1 (en) | 2011-04-20 |
EP1985119A1 (en) | 2008-10-29 |
JP2009526440A (en) | 2009-07-16 |
US9497423B2 (en) | 2016-11-15 |
CN101379826A (en) | 2009-03-04 |
WO2007092660A1 (en) | 2007-08-16 |
ATE506811T1 (en) | 2011-05-15 |
CN101379826B (en) | 2011-07-06 |
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