US20110077751A1 - Systems and methods for controlling appliances via a network - Google Patents
Systems and methods for controlling appliances via a network Download PDFInfo
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- US20110077751A1 US20110077751A1 US12/963,757 US96375710A US2011077751A1 US 20110077751 A1 US20110077751 A1 US 20110077751A1 US 96375710 A US96375710 A US 96375710A US 2011077751 A1 US2011077751 A1 US 2011077751A1
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- 230000004044 response Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 11
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- 230000005540 biological transmission Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 230000006855 networking Effects 0.000 description 5
- 230000010354 integration Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/16—Electric signal transmission systems in which transmission is by pulses
- G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/20—Binding and programming of remote control devices
- G08C2201/21—Programming remote control devices via third means
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/40—Remote control systems using repeaters, converters, gateways
- G08C2201/42—Transmitting or receiving remote control signals via a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L2012/284—Home automation networks characterised by the type of medium used
- H04L2012/2841—Wireless
Definitions
- the present invention relates generally to remote control systems and, more particularly, to systems and methods for remotely controlling appliances via a network.
- home networks have become increasingly common throughout the world.
- Home networks are often radio frequency-based so that computers and printers in different places in the home can easily communicate with one another regardless of their location and without installing wires.
- the vision of the future home often includes home appliances, such as telephones and heating and cooling equipment, integrated into the home network. Such an integration would permit the addition of new appliances and allow these devices to easily communicate with each other.
- home appliances such as telephones and heating and cooling equipment
- Some conventional appliances such as stereos and televisions, include a wireless control device in the form of a remote control.
- a wireless control device in the form of a remote control.
- a user To control the operation of one of these devices, a user must physically push a button on a uniquely associated or universal remote control.
- the user normally gets audio or visual queues that the requested operation was received and performed by the appliance (e.g., the television changes the channel after the user presses a button on the remote control device).
- the appliance e.g., the television changes the channel after the user presses a button on the remote control device.
- Systems and methods consistent with the present invention address this need by providing a mechanism that permits conventional appliances to be integrated in a home network, thereby permitting the appliances to be controlled via a device directly or indirectly connected to the home network.
- a remote control device controls the operation of an appliance.
- the remote control device includes a receiver or transceiver, a controller, and a transmitter.
- the receiver/transceiver receives a network packet that includes at least one command.
- the controller analyzes the network packet to determine whether the packet is intended for the remote control device.
- the transmitter outputs a signal to control operation of the appliance based on the command when the controller determines that the packet is intended for the remote control device.
- a network with multiple appliances includes a device and a remote control.
- the device generates a command for controlling one of the appliances.
- the remote control receives the command from the device, generates a control signal based on the command, and transmits the control signal to the appliance to control operation of the appliance.
- a device in a network including at least one device connected to multiple appliances via at least one remote control, includes a graphical user interface and a processor.
- the graphical user interface presents to a user a list of appliances and control options.
- the processor broadcasts a request to identify remote controls connected to the network and capabilities of the remote controls, receives responses from the remote controls, and generates the list of the appliances and control options from the received responses.
- FIG. 1 is a diagram of an exemplary network consistent with the present invention
- FIG. 2 is an exemplary diagram of a user device consistent with the present invention
- FIG. 3 is an exemplary diagram of a remote control in an implementation consistent with the present invention.
- FIG. 4 is a flowchart of processing for controlling an appliance in an implementation consistent with the present invention.
- FIG. 5 is a diagram of an exemplary graphical user interface that may be provided by the network device and/or the user device of FIG. 1 in an implementation consistent with the present invention
- FIG. 6 is an exemplary diagram of a remote control in another implementation consistent with the present invention.
- FIG. 7 is a flowchart of processing for controlling an appliance in another implementation consistent with the present invention.
- Systems and methods consistent with the present invention facilitate the connection of conventional appliances to a home network.
- the appliances may be controlled by a device either directly or indirectly connected to the network.
- FIG. 1 is a diagram of an exemplary network 100 consistent with the present invention.
- the network 100 may include a user device 110 connected to one or more appliances 120 via a network 130 and a remote control 140 .
- the user device 110 may also connect to a network device 150 via a network 160 .
- the user device 110 may include a personal computer, a laptop, a personal digital assistant (PDA), a cellular telephone, or a similar device.
- PDA personal digital assistant
- FIG. 2 is an exemplary diagram of the user device 110 consistent with the present invention.
- the user device 110 may include a processor 210 , main memory 220 . a read only memory (ROM) 230 , a bus 240 , an input device 250 , an output device 260 , and a communication interface 270 .
- ROM read only memory
- the processor 210 may include any type of conventional processing device that interprets and executes instructions.
- Main memory 220 may include a random access memory (RAM), a large capacity storage device, such as a magnetic or optical recording medium and its corresponding drive, or another type of dynamic storage device.
- Main memory 220 may store information, instructions, and temporary variables for use by processor 210 .
- ROM 230 may include a conventional ROM device or another type of static storage device that stores static information and instructions for the processor 210 .
- the bus 240 may include a set of hardware lines (i.e., conductors) that permits data transfer among the components of the user device 110 .
- the input device 250 may include conventional input mechanisms, such as a keyboard, a mouse, a microphone, biometric mechanisms, or the like.
- the output device 260 may include conventional output mechanisms, such as a display, a pair of speakers, or the like.
- the communication interface 270 enables the user device 110 to communicate with other devices/systems via any communications medium.
- the communication interface 270 may include a wireless transmitter for communicating with a remote control 140 ( FIG. 1 ) via the network 130 or a modem for communicating with the network device 150 via the network 160 .
- the communication interface may include any other type of interface that enables communication between the user device 110 and other devices or systems.
- the appliances 120 may include conventional devices, such as televisions, video cassette recorders (VCRs), digital versatile disk (DVD) players, stereos, camcorders, etc., that include infrared receiving ports. These conventional appliances 120 are designed to perform specific functions in response to commands received via their infrared (IR) receiving ports.
- VCRs video cassette recorders
- DVD digital versatile disk
- IR infrared
- the network 130 may include a wireless network that permits the user device 110 to communicate with the remote control 140 using, for example, radio frequency (RF) technologies.
- the network 160 may include the Internet, an intranet, a local area network (LAN), a wide area network (WAN), the public switched telephone network (PSTN), or another type of network.
- the network 160 permits the network device 150 to communicate with the user device 110 .
- the network device 150 may include a personal computer, a laptop, a PDA, a cellular or digital telephone, or the like, and may be configured similarly to the user device 110 described with respect to FIG. 2 .
- the network device 150 may communicate with the user device 110 to control an appliance 120 via a remote control 140 .
- the remote control 140 sends command signals to the appliances 120 to instruct the appliances 120 to perform certain operations, such as changing channels or volume, playing or recording a movie or a song, etc.
- FIG. 3 is an exemplary diagram of the remote control 140 in an implementation consistent with the present invention.
- the remote control 140 may include an antenna 310 , a receiver 320 , a microcontroller 330 , a transmitter controller 340 , a transmitter 350 , input keys 360 , and an input controller 370 .
- the antenna 310 may include a conventional antenna for receiving RF signals.
- the receiver 320 may include an RF receiver that interprets the RF signals received by the antenna 310 and an analog-to-digital converter that converts the RF signals to digital signals for use by the microcontroller 330 .
- the microcontroller 330 may include any processing device with simple networking capabilities. The microcontroller 330 analyzes the digital signals from the receiver 320 to determine whether the digital signals are addressed to the remote control 140 and whether the remote control 140 is capable of performing any command included in the digital signals.
- the transmitter controller 340 may include a conventional control device that controls the transmission of IR signals via the transmitter 350 .
- the transmitter controller 340 receives inputs from the microcontroller 330 and the input keys 360 via the input controller 370 .
- the input keys 360 may include conventional input controls, such as buttons, that permit a user to input particular commands into the remote control 140 .
- the input controller 370 includes a conventional control device that interprets the operation of the input keys 360 and generates a command signal for transmission by the transmitter 350 .
- the transmitter 350 may include an IR transmitter that transmits an IR signal as instructed by the transmitter controller 340 .
- FIG. 4 is a flowchart of processing for controlling an appliance in an implementation consistent with the present invention. Processing might begin with a user entering an instruction into the network device 150 or the user device 110 [step 410 ].
- the network device 150 and user device 110 may be preprogrammed with a list of appliances 120 and their capabilities. In this case, the devices 150 and 110 may present the user with a list of appliances 120 and corresponding options from which the user may select.
- the devices 150 and 110 may provide graphical user interfaces to the user to facilitate the user's selection.
- FIG. 5 is a diagram of an exemplary graphical user interface 500 for controlling a television that may be provided by the network device 150 and/or the user device 110 in an implementation consistent with the present invention.
- the graphical user interface 500 may include an appliance identifier 510 , such as “Sony 53 Inch Television,” to uniquely identify the appliance 120 being controlled, and one or more command components 520 , such as channel and volume command components, to control the operation of the appliance 120 .
- an appliance identifier 510 such as “Sony 53 Inch Television”
- command components 520 such as channel and volume command components
- the network device 150 or user device 110 analyzes the instruction and generates a command signal therefrom [step 420 ]. If the user enters the instruction via the network device 150 , the network device 150 transmits the command signal to the user device 110 via the network 160 . For example, the network device 150 might use a modem to transmit the command signal to the user device 110 .
- the user device 110 generates a network packet from the command signal and transmits the network packet to the remote control 140 using conventional RF transmission techniques [step 430 ].
- the receiver 320 ( FIG. 3 ) of the remote control 140 receives the network packet and may convert it from analog to digital form [step 440 ].
- the microcontroller 330 analyzes the packet to determine whether it is addressed to the remote control 140 . To make this determination, the microcontroller 330 might compare a destination address in the packet to the network address of the remote control 140 .
- the microcontroller 330 may simply discard it. If it is addressed to the remote control 140 , the microcontroller 330 reads the packet to identify the command contained therein. The microcontroller 330 may then determine whether the remote control 140 can perform this command [step 450 ]. To make this determination, the microcontroller 330 may compare the command to a table of known commands. For example, if the command includes an instruction to increase the volume on a stereo, the microcontroller 330 determines whether it has the capability to increase the volume on the stereo.
- the microcontroller 330 may discard it. If it is one that the remote control 140 can perform, the microcontroller 330 sends appropriate signals to the transmitter controller 340 to instruct it to generate an IR signal corresponding to the command. The signals sent by the microcontroller 330 may emulate signals generated by the input controller 370 in response to the same command being input via the input keys 360 .
- the transmitter controller 340 generates the IR signal [step 460 ] and transmits it to the IR receiving port of the intended appliance 120 [step 470 ]. To facilitate the transmission of the IR signal, it may be necessary that the transmitter 350 of the remote control 140 be pointed in the direction of the appliance 120 .
- FIG. 6 is an exemplary diagram of a remote control 600 in another implementation consistent with the present invention.
- the remote control 600 has similar components to the remote control 140 of FIG. 3 , but differs from the remote control 140 in that the remote control 600 has more networking capabilities and acts as a node in the network 100 .
- the remote control 600 may include an antenna 610 , a transceiver 620 , a microcontroller 630 , a transmitter controller 640 , a transmitter 650 , input keys 660 , and an input controller 670 .
- the antenna 610 may include a conventional antenna for transmitting and receiving RF signals.
- the transceiver 620 may include an RF transceiver that interprets the RF signals received by the antenna 610 , an analog-to-digital converter that converts the RF signals to digital signals for use by the microcontroller 630 , and a digital-to-analog converter that converts digital signals from the microcontroller 630 to analog RF signals for transmission via the network 130 .
- the microcontroller 630 may include any processing device with networking capabilities that permit the remote control 600 to participate in the network 130 as a normal peripheral node.
- the microcontroller 630 may maintain information on the capabilities of the remote control 600 and respond to queries by providing this capability information to another device connected to the network 130 .
- the microcontroller 630 may acknowledge and analyze commands received from the network.
- the transmitter controller 640 may include a conventional control device that controls the transmission of IR signals via the transmitter 650 .
- the transmitter controller 640 receives inputs from the microcontroller 630 and the input keys 660 via the input controller 670 .
- the input keys 660 may include conventional input controls, such as buttons, that permit a user to input particular commands.
- the input controller 670 includes a conventional control device that interprets the operation of the input keys 660 and generates a command signal for transmission by the transmitter 650 .
- the transmitter 650 may include an IR transmitter that transmits an IR signal as instructed by the transmitter controller 640 .
- FIG. 7 is a flowchart of processing for controlling an appliance in another implementation consistent with the present invention. Processing might begin with the user device 110 ( FIG. 1 ) determining what remote controls 600 are available on the network. For example, the user device 110 may transmit a query, such as a standard “service discovery protocol,” on the network 130 to determine what remote controls 600 are connected to the network 130 and their respective capabilities [step 710 ]. Each of the remote controls 600 may respond to the user device 110 with its network address and capabilities [step 720 ].
- a query such as a standard “service discovery protocol”
- the user device 110 may provide the information received from the remote controls 600 to a user via a graphical user interface. For example, the user device 110 may present the user with a list of appliances 120 and corresponding options from which the user may select. If the user accesses the network 130 via a network device 150 , instead of the user device 110 , the network device 150 may obtain the information regarding the capabilities of the remote controls 600 from the user device 110 via the network 160 .
- the user device 110 or network device 150 receives an instruction from the user [step 730 ].
- the user device 110 or network device 150 analyzes the instruction and generates a command signal therefrom [step 740 ]. If the user enters the instruction via the network device 150 , the network device 150 transmits the command signal to the user device 110 via the network 160 .
- the network device 150 might use a modem to transmit the command signal to the user device 110 .
- the user device 110 may then generate a network packet from the command signal and transmit the network packet to a remote control 600 having the required capabilities [step 750 ].
- the user device 110 may use conventional RF transmission techniques to transmit the packet.
- the transceiver 620 ( FIG. 6 ) of the remote control 600 receives the network packet and may acknowledge its receipt [step 760 ].
- the microcontroller 630 may then analyze the packet to determine whether it is addressed to the remote control 600 . To make this determination, the microcontroller 630 might compare a destination address in the packet to the network address of the remote control 600 . If the packet is not addressed to the remote control 600 , the microcontroller 630 may discard it.
- the microcontroller 630 If the packet is addressed to the remote control 600 , the microcontroller 630 reads the packet to identify the command contained therein. The microcontroller 630 may then send the appropriate signals to the transmitter controller 640 to instruct it to generate an IR signal corresponding to the command. The signals sent by the microcontroller 630 may emulate signals generated by the input controller 670 in response to the same command being input via the input keys 660 .
- the transmitter controller 640 generates the IR signal [step 770 ] and transmits it to the IR receiving port of the intended appliance 120 [step 780 ]. To facilitate the transmission of the IR signal, it may be necessary that the transmitter 650 of the remote control 600 be pointed in the direction of the appliance 120 .
- Systems and methods consistent with the present invention permit conventional appliances to be controlled over a network.
- a user within a household may control the operation of one or more appliances using, for example, a personal computer.
- a user outside of the household may control these appliances using a device connected to a network, such as the Internet.
- the remote control as controlling the operation of an appliance based on an instruction from a user.
- the user device 110 may be preprogrammed to automatically issue a command signal to the remote control for controlling the appliance based on what the user is doing on the user device.
Abstract
Description
- A. Field of the Invention
- The present invention relates generally to remote control systems and, more particularly, to systems and methods for remotely controlling appliances via a network.
- B. Description of Related Art
- In the last several years, home networks have become increasingly common throughout the world. Home networks are often radio frequency-based so that computers and printers in different places in the home can easily communicate with one another regardless of their location and without installing wires.
- The vision of the future home often includes home appliances, such as telephones and heating and cooling equipment, integrated into the home network. Such an integration would permit the addition of new appliances and allow these devices to easily communicate with each other. One day, all household appliances from refrigerators to televisions may be integrated into this home network.
- The problem with such an integration is that it requires the appliance to be manufactured with the networking capability built into it. Because individuals typically keep the same appliances for decades or more, it may be a very long time before all of the appliances in a typical household include the networking capability.
- Some conventional appliances, such as stereos and televisions, include a wireless control device in the form of a remote control. To control the operation of one of these devices, a user must physically push a button on a uniquely associated or universal remote control. The user normally gets audio or visual queues that the requested operation was received and performed by the appliance (e.g., the television changes the channel after the user presses a button on the remote control device). These appliances are not, however, easily integrated in a home network.
- As a result, a need exists for a mechanism that facilitates the integration of conventional appliances in a home network.
- Systems and methods consistent with the present invention address this need by providing a mechanism that permits conventional appliances to be integrated in a home network, thereby permitting the appliances to be controlled via a device directly or indirectly connected to the home network.
- In accordance with the purpose of the invention as embodied and broadly described herein, a remote control device controls the operation of an appliance. The remote control device includes a receiver or transceiver, a controller, and a transmitter. The receiver/transceiver receives a network packet that includes at least one command. The controller analyzes the network packet to determine whether the packet is intended for the remote control device. The transmitter outputs a signal to control operation of the appliance based on the command when the controller determines that the packet is intended for the remote control device.
- In another implementation consistent with the present invention, a network with multiple appliances includes a device and a remote control. The device generates a command for controlling one of the appliances. The remote control receives the command from the device, generates a control signal based on the command, and transmits the control signal to the appliance to control operation of the appliance.
- In yet another implementation consistent with the present invention, a device in a network, including at least one device connected to multiple appliances via at least one remote control, includes a graphical user interface and a processor. The graphical user interface presents to a user a list of appliances and control options. The processor broadcasts a request to identify remote controls connected to the network and capabilities of the remote controls, receives responses from the remote controls, and generates the list of the appliances and control options from the received responses.
- The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the invention and, together with the description, explain the invention. In the drawings,
-
FIG. 1 is a diagram of an exemplary network consistent with the present invention; -
FIG. 2 is an exemplary diagram of a user device consistent with the present invention; -
FIG. 3 is an exemplary diagram of a remote control in an implementation consistent with the present invention; -
FIG. 4 is a flowchart of processing for controlling an appliance in an implementation consistent with the present invention; -
FIG. 5 is a diagram of an exemplary graphical user interface that may be provided by the network device and/or the user device ofFIG. 1 in an implementation consistent with the present invention; -
FIG. 6 is an exemplary diagram of a remote control in another implementation consistent with the present invention; and -
FIG. 7 is a flowchart of processing for controlling an appliance in another implementation consistent with the present invention. - The following detailed description of the invention refers to the accompanying drawings. The same reference numbers in different drawings identify the same or similar elements. Also, the following detailed description does not limit the invention. Instead, the scope of the invention is defined by the appended claims and equivalents.
- Systems and methods consistent with the present invention facilitate the connection of conventional appliances to a home network. As such, the appliances may be controlled by a device either directly or indirectly connected to the network.
-
FIG. 1 is a diagram of anexemplary network 100 consistent with the present invention. Thenetwork 100 may include auser device 110 connected to one ormore appliances 120 via anetwork 130 and aremote control 140. Theuser device 110 may also connect to anetwork device 150 via anetwork 160. Theuser device 110 may include a personal computer, a laptop, a personal digital assistant (PDA), a cellular telephone, or a similar device. -
FIG. 2 is an exemplary diagram of theuser device 110 consistent with the present invention. Theuser device 110 may include aprocessor 210,main memory 220. a read only memory (ROM) 230, abus 240, aninput device 250, anoutput device 260, and acommunication interface 270. - The
processor 210 may include any type of conventional processing device that interprets and executes instructions.Main memory 220 may include a random access memory (RAM), a large capacity storage device, such as a magnetic or optical recording medium and its corresponding drive, or another type of dynamic storage device.Main memory 220 may store information, instructions, and temporary variables for use byprocessor 210.ROM 230 may include a conventional ROM device or another type of static storage device that stores static information and instructions for theprocessor 210. Thebus 240 may include a set of hardware lines (i.e., conductors) that permits data transfer among the components of theuser device 110. - The
input device 250 may include conventional input mechanisms, such as a keyboard, a mouse, a microphone, biometric mechanisms, or the like. Theoutput device 260 may include conventional output mechanisms, such as a display, a pair of speakers, or the like. Thecommunication interface 270 enables theuser device 110 to communicate with other devices/systems via any communications medium. For example, thecommunication interface 270 may include a wireless transmitter for communicating with a remote control 140 (FIG. 1 ) via thenetwork 130 or a modem for communicating with thenetwork device 150 via thenetwork 160. Alternatively, the communication interface may include any other type of interface that enables communication between theuser device 110 and other devices or systems. - Returning to
FIG. 1 , theappliances 120 may include conventional devices, such as televisions, video cassette recorders (VCRs), digital versatile disk (DVD) players, stereos, camcorders, etc., that include infrared receiving ports. Theseconventional appliances 120 are designed to perform specific functions in response to commands received via their infrared (IR) receiving ports. - The
network 130 may include a wireless network that permits theuser device 110 to communicate with theremote control 140 using, for example, radio frequency (RF) technologies. Thenetwork 160 may include the Internet, an intranet, a local area network (LAN), a wide area network (WAN), the public switched telephone network (PSTN), or another type of network. Thenetwork 160 permits thenetwork device 150 to communicate with theuser device 110. Thenetwork device 150 may include a personal computer, a laptop, a PDA, a cellular or digital telephone, or the like, and may be configured similarly to theuser device 110 described with respect toFIG. 2 . Thenetwork device 150 may communicate with theuser device 110 to control anappliance 120 via aremote control 140. - The
remote control 140 sends command signals to theappliances 120 to instruct theappliances 120 to perform certain operations, such as changing channels or volume, playing or recording a movie or a song, etc.FIG. 3 is an exemplary diagram of theremote control 140 in an implementation consistent with the present invention. Theremote control 140 may include anantenna 310, areceiver 320, amicrocontroller 330, atransmitter controller 340, atransmitter 350,input keys 360, and aninput controller 370. - The
antenna 310 may include a conventional antenna for receiving RF signals. Thereceiver 320 may include an RF receiver that interprets the RF signals received by theantenna 310 and an analog-to-digital converter that converts the RF signals to digital signals for use by themicrocontroller 330. Themicrocontroller 330 may include any processing device with simple networking capabilities. Themicrocontroller 330 analyzes the digital signals from thereceiver 320 to determine whether the digital signals are addressed to theremote control 140 and whether theremote control 140 is capable of performing any command included in the digital signals. - The
transmitter controller 340 may include a conventional control device that controls the transmission of IR signals via thetransmitter 350. Thetransmitter controller 340 receives inputs from themicrocontroller 330 and theinput keys 360 via theinput controller 370. Theinput keys 360 may include conventional input controls, such as buttons, that permit a user to input particular commands into theremote control 140. Theinput controller 370 includes a conventional control device that interprets the operation of theinput keys 360 and generates a command signal for transmission by thetransmitter 350. Thetransmitter 350 may include an IR transmitter that transmits an IR signal as instructed by thetransmitter controller 340. -
FIG. 4 is a flowchart of processing for controlling an appliance in an implementation consistent with the present invention. Processing might begin with a user entering an instruction into thenetwork device 150 or the user device 110 [step 410]. Thenetwork device 150 anduser device 110 may be preprogrammed with a list ofappliances 120 and their capabilities. In this case, thedevices appliances 120 and corresponding options from which the user may select. Thedevices -
FIG. 5 is a diagram of an exemplarygraphical user interface 500 for controlling a television that may be provided by thenetwork device 150 and/or theuser device 110 in an implementation consistent with the present invention. Thegraphical user interface 500 may include anappliance identifier 510, such as “Sony 53 Inch Television,” to uniquely identify theappliance 120 being controlled, and one ormore command components 520, such as channel and volume command components, to control the operation of theappliance 120. - Once the user enters the instruction, the
network device 150 oruser device 110 analyzes the instruction and generates a command signal therefrom [step 420]. If the user enters the instruction via thenetwork device 150, thenetwork device 150 transmits the command signal to theuser device 110 via thenetwork 160. For example, thenetwork device 150 might use a modem to transmit the command signal to theuser device 110. - The
user device 110 generates a network packet from the command signal and transmits the network packet to theremote control 140 using conventional RF transmission techniques [step 430]. The receiver 320 (FIG. 3 ) of theremote control 140 receives the network packet and may convert it from analog to digital form [step 440]. Themicrocontroller 330 analyzes the packet to determine whether it is addressed to theremote control 140. To make this determination, themicrocontroller 330 might compare a destination address in the packet to the network address of theremote control 140. - If the packet is not addressed to the
remote control 140, themicrocontroller 330 may simply discard it. If it is addressed to theremote control 140, themicrocontroller 330 reads the packet to identify the command contained therein. Themicrocontroller 330 may then determine whether theremote control 140 can perform this command [step 450]. To make this determination, themicrocontroller 330 may compare the command to a table of known commands. For example, if the command includes an instruction to increase the volume on a stereo, themicrocontroller 330 determines whether it has the capability to increase the volume on the stereo. - If the command is not one that the
remote control 140 can perform, themicrocontroller 330 may discard it. If it is one that theremote control 140 can perform, themicrocontroller 330 sends appropriate signals to thetransmitter controller 340 to instruct it to generate an IR signal corresponding to the command. The signals sent by themicrocontroller 330 may emulate signals generated by theinput controller 370 in response to the same command being input via theinput keys 360. - The
transmitter controller 340 generates the IR signal [step 460] and transmits it to the IR receiving port of the intended appliance 120 [step 470]. To facilitate the transmission of the IR signal, it may be necessary that thetransmitter 350 of theremote control 140 be pointed in the direction of theappliance 120. -
FIG. 6 is an exemplary diagram of aremote control 600 in another implementation consistent with the present invention. Theremote control 600 has similar components to theremote control 140 ofFIG. 3 , but differs from theremote control 140 in that theremote control 600 has more networking capabilities and acts as a node in thenetwork 100. Theremote control 600 may include anantenna 610, atransceiver 620, amicrocontroller 630, atransmitter controller 640, atransmitter 650,input keys 660, and aninput controller 670. - The
antenna 610 may include a conventional antenna for transmitting and receiving RF signals. Thetransceiver 620 may include an RF transceiver that interprets the RF signals received by theantenna 610, an analog-to-digital converter that converts the RF signals to digital signals for use by themicrocontroller 630, and a digital-to-analog converter that converts digital signals from themicrocontroller 630 to analog RF signals for transmission via thenetwork 130. - The
microcontroller 630 may include any processing device with networking capabilities that permit theremote control 600 to participate in thenetwork 130 as a normal peripheral node. Themicrocontroller 630 may maintain information on the capabilities of theremote control 600 and respond to queries by providing this capability information to another device connected to thenetwork 130. Themicrocontroller 630 may acknowledge and analyze commands received from the network. - The
transmitter controller 640 may include a conventional control device that controls the transmission of IR signals via thetransmitter 650. Thetransmitter controller 640 receives inputs from themicrocontroller 630 and theinput keys 660 via theinput controller 670. Theinput keys 660 may include conventional input controls, such as buttons, that permit a user to input particular commands. Theinput controller 670 includes a conventional control device that interprets the operation of theinput keys 660 and generates a command signal for transmission by thetransmitter 650. Thetransmitter 650 may include an IR transmitter that transmits an IR signal as instructed by thetransmitter controller 640. -
FIG. 7 is a flowchart of processing for controlling an appliance in another implementation consistent with the present invention. Processing might begin with the user device 110 (FIG. 1 ) determining whatremote controls 600 are available on the network. For example, theuser device 110 may transmit a query, such as a standard “service discovery protocol,” on thenetwork 130 to determine whatremote controls 600 are connected to thenetwork 130 and their respective capabilities [step 710]. Each of theremote controls 600 may respond to theuser device 110 with its network address and capabilities [step 720]. - The
user device 110 may provide the information received from theremote controls 600 to a user via a graphical user interface. For example, theuser device 110 may present the user with a list ofappliances 120 and corresponding options from which the user may select. If the user accesses thenetwork 130 via anetwork device 150, instead of theuser device 110, thenetwork device 150 may obtain the information regarding the capabilities of theremote controls 600 from theuser device 110 via thenetwork 160. - In either case, the
user device 110 ornetwork device 150 receives an instruction from the user [step 730]. Theuser device 110 ornetwork device 150 analyzes the instruction and generates a command signal therefrom [step 740]. If the user enters the instruction via thenetwork device 150, thenetwork device 150 transmits the command signal to theuser device 110 via thenetwork 160. For example, thenetwork device 150 might use a modem to transmit the command signal to theuser device 110. - The
user device 110 may then generate a network packet from the command signal and transmit the network packet to aremote control 600 having the required capabilities [step 750]. Theuser device 110 may use conventional RF transmission techniques to transmit the packet. - The transceiver 620 (
FIG. 6 ) of theremote control 600 receives the network packet and may acknowledge its receipt [step 760]. Themicrocontroller 630 may then analyze the packet to determine whether it is addressed to theremote control 600. To make this determination, themicrocontroller 630 might compare a destination address in the packet to the network address of theremote control 600. If the packet is not addressed to theremote control 600, themicrocontroller 630 may discard it. - If the packet is addressed to the
remote control 600, themicrocontroller 630 reads the packet to identify the command contained therein. Themicrocontroller 630 may then send the appropriate signals to thetransmitter controller 640 to instruct it to generate an IR signal corresponding to the command. The signals sent by themicrocontroller 630 may emulate signals generated by theinput controller 670 in response to the same command being input via theinput keys 660. - The
transmitter controller 640 generates the IR signal [step 770] and transmits it to the IR receiving port of the intended appliance 120 [step 780]. To facilitate the transmission of the IR signal, it may be necessary that thetransmitter 650 of theremote control 600 be pointed in the direction of theappliance 120. - Systems and methods consistent with the present invention permit conventional appliances to be controlled over a network. A user within a household may control the operation of one or more appliances using, for example, a personal computer. In addition, a user outside of the household may control these appliances using a device connected to a network, such as the Internet.
- The foregoing description of preferred embodiments of the present invention provides illustration and description, but is not intended to be exhaustive or to limit the invention to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of the invention. For example, while series of steps have been described with regard to
FIGS. 4 and 7 , the order of the steps does not matter. - In addition, the preceding description described the remote control as controlling the operation of an appliance based on an instruction from a user. In another implementation consistent with the present invention, the
user device 110 may be preprogrammed to automatically issue a command signal to the remote control for controlling the appliance based on what the user is doing on the user device. - The scope of the invention is defined by the claims and their equivalents.
Claims (22)
Priority Applications (1)
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US12/963,757 US20110077751A1 (en) | 2000-05-16 | 2010-12-09 | Systems and methods for controlling appliances via a network |
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US12/963,757 US20110077751A1 (en) | 2000-05-16 | 2010-12-09 | Systems and methods for controlling appliances via a network |
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US09/572,682 Continuation US7865568B1 (en) | 2000-05-16 | 2000-05-16 | Systems and methods for controlling appliances via a network |
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US12/963,757 Abandoned US20110077751A1 (en) | 2000-05-16 | 2010-12-09 | Systems and methods for controlling appliances via a network |
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