WO2008078220A2 - A method for distribution of remote control commands - Google Patents

A method for distribution of remote control commands Download PDF

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Publication number
WO2008078220A2
WO2008078220A2 PCT/IB2007/055047 IB2007055047W WO2008078220A2 WO 2008078220 A2 WO2008078220 A2 WO 2008078220A2 IB 2007055047 W IB2007055047 W IB 2007055047W WO 2008078220 A2 WO2008078220 A2 WO 2008078220A2
Authority
WO
WIPO (PCT)
Prior art keywords
remote control
distribution
control commands
transmitter
commands according
Prior art date
Application number
PCT/IB2007/055047
Other languages
French (fr)
Other versions
WO2008078220A3 (en
Inventor
Eren Inan Canpolat
Murat Dinc
Original Assignee
Grundig Elektronik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grundig Elektronik Anonim Sirketi filed Critical Grundig Elektronik Anonim Sirketi
Publication of WO2008078220A2 publication Critical patent/WO2008078220A2/en
Publication of WO2008078220A3 publication Critical patent/WO2008078220A3/en

Links

Classifications

    • 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
    • H04L12/282—Controlling appliance services of a home automation network by calling their functionalities based on user interaction within the home
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/4227—Providing Remote input by a user located remotely from the client device, e.g. at work
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • 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
    • 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
    • G08C2201/41—Remote control of gateways
    • 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
    • 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
    • H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
    • 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
    • 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
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/2849—Audio/video appliances

Definitions

  • the present invention relates to a method for distribution of remote control commands, which is able to detect signals sent in a wide range of frequency at a display system (box and glass) comprising a server distributing images and sounds and a display screen displaying/playing the images and sounds received from the said server, connected to each other via home network.
  • a display system box and glass
  • server distributing images and sounds and a display screen displaying/playing the images and sounds received from the said server, connected to each other via home network.
  • the server device in such systems provides distribution of images and/or sound data which enter the system from external devices such as DVD players, personal computers, personal video recorders by means of connectors like SCART, HDMI, RCA disposed on the server device and of the analog and/or digital television broadcast which the server device decodes within itself, to the screen via the home network.
  • the home network cited herein can be a system which connects devices to each other via electric sockets by using the power line for data transfer, it can also be a wireless system.
  • the server device and the external devices connected to the server device it is frequently preferred by the users to arrange the server device and the external devices connected to the server device away from the screen and often to another room.
  • control of the external devices connected to the server from the room where the screen is located by means of the remote control can be done with the help of the receiver disposed on the screen.
  • the said receiver which is an infrared receiver in the state of the art, receives signals coming from the standard remote controls of the external devices, samples and transmits them to the server device via the home network.
  • the said signal is regenerated by means of the said transmitted sampling data and the transmitter disposed on the server device, and it is transmitted to the concerned external devices.
  • the objective of the present invention is to realize a method for distribution of remote control commands which detects remote control signals within a wide range of frequencies, samples and transfers them to the server device and regenerates them in the server device and transmits them to the external device.
  • Figure 1 is the block diagram of the inventive method for distribution of remote control commands.
  • the inventive method for distribution of remote control commands comprises a receiver device (5) consisting of a filterless photodiode (1) which detects remote control signals and is sensitive to infrared, a receiver circuit (2) which samples the signals detected by the said photodiode (1) and a receiver connection (4) which ensures transfer of the sampled data to the home network infrastructure (3); a transmitter device (9) consisting of a transmitter connection (6) which ensures receipt of the sampling data transferred via home network infrastructure (3); a transmitter circuit (7) which generates a control command out of the said sampling data and a light emitting diode (LED) (8) which sends the said control signal to the external device and a home network infrastructure (3) providing data transfer between the receiver (5) and transmitter (9) devices.
  • a receiver device (5) consisting of a filterless photodiode (1) which detects remote control signals and is sensitive to infrared
  • a receiver circuit (2) which samples the signals detected by the said photodiode (1) and a receiver connection (4) which ensures transfer of the sampled data to
  • the photodiode (1), sensitive to infrared, disposed on the said receiver device (5) is filterless whereby it ensures detection of signals in all of the received carrier frequencies. Assuming that the received carrier frequencies will be 30 KHz to 56 KHz, the receiver circuit (2) on the receiver device (5) generates sampling data from these signals by sampling about 350 KHz so that at least 6 samples will be taken. The said generated sampling data are transmitted to the home network infrastructure (3) via the receiver connection (4) on the receiver device (5). A sampling data contains all the information regarding both the carrier frequency and the remote control protocol used.
  • the said home network infrastructure (3) is a system known in the state of the art which although may be any system which is able to perform data transfer by wired or wireless means, it is preferably a system which performs data transfer by using the electric installation circuit and sockets already present at home and being used for the operation of electrical appliances.
  • the transmitter device (9) is preferably disposed on the server device, and it sends the sampling data received via the transmitter connection (6) located on the transmitter device to the transmitter circuit (7).
  • the transmitter circuit (7) generates a control command from the received sampling data by using various interpolation and quantification methods.
  • the control commands generated by the transmitter circuit (7) are sent to external devices via a light emitting diode (LED) (8) which is also disposed on the transmitter device (9).
  • LED light emitting diode
  • the said receiver circuit (2) essentially comprises an analog-to-digital converter, a memory, a communication protocol and a microprocessor.
  • the transmitter circuit (7) essentially comprises a digital-to- analog converter, a memory, a communication protocol and a microprocessor.
  • the said memory can be a permanent memory (flash) or a random access memory (RAM).
  • the communication protocol can be UART, I2C and etc.
  • the transmitter device (9) can be independent from the server device with all its components, some parts disposed thereon (for example memory, microprocessor, etc.) can be jointly used with the server device.
  • These receiver (5) and transmitter (9) devices are not informed about the frequencies and protocols of the control signals sent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)

Abstract

The present invention relates to a method for distribution of remote control commands, which is able to detect signals sent in a wide range of frequency at a display system (box and glass) comprising a server distributing images and sounds and a display screen displaying/playing the images and sounds received from the said server, connected to each other via home network.

Description

Description
A METHOD FOR DISTRIBUTION OF REMOTE CONTROL
COMMANDS
[ 1 ] Field of the Invention
[2] The present invention relates to a method for distribution of remote control commands, which is able to detect signals sent in a wide range of frequency at a display system (box and glass) comprising a server distributing images and sounds and a display screen displaying/playing the images and sounds received from the said server, connected to each other via home network.
[3] Background of the Invention
[4] In our time, there has been an increase in the number of media wherein images and sounds are produced and stored, and accordingly in the number of devices playing these. Users want to view the output of a plurality of devices which can play images and sounds such as DVD players, personal computers and personal video recorders, on the same display screen. However connecting all of these devices to the same screen at the same time is often not possible because of the fewness of the types and number of the connectors provided on the screen; and in cases where it is possible, it causes cable chaos at the place where the screen is located.
[5] For this reason, the popularity of display systems (box and glass) developed to eliminate these problems, comprising a single server to which various devices are connected, and a screen to which the said server can connect via home network without requiring an additional cable and which only performs display function, is increasing day by day. The server device in such systems provides distribution of images and/or sound data which enter the system from external devices such as DVD players, personal computers, personal video recorders by means of connectors like SCART, HDMI, RCA disposed on the server device and of the analog and/or digital television broadcast which the server device decodes within itself, to the screen via the home network. While the home network cited herein can be a system which connects devices to each other via electric sockets by using the power line for data transfer, it can also be a wireless system.
[6] In the said server-screen system, it is frequently preferred by the users to arrange the server device and the external devices connected to the server device away from the screen and often to another room. In this case, control of the external devices connected to the server from the room where the screen is located by means of the remote control can be done with the help of the receiver disposed on the screen. The said receiver which is an infrared receiver in the state of the art, receives signals coming from the standard remote controls of the external devices, samples and transmits them to the server device via the home network. The said signal is regenerated by means of the said transmitted sampling data and the transmitter disposed on the server device, and it is transmitted to the concerned external devices.
[7] However, problems are encountered in the state of the art, at the transmission of those remote control signals. These problems originate from the fact that the receiver on the screen can detect only specific infrared frequency whereas remote control signals of various external devices function in diverse infrared frequencies. In this case, since the commands transmitted by means of remote control signals are not detected by the receiver, they are not transmitted to the server and consequently nor to the concerned external device.
[8] In fact, as it is disclosed in the European patent application No. EPl 133084, pho- todiodes detecting signals can detect signals within a wider range of frequencies.
[9] Summary of the Invention
[10] The objective of the present invention is to realize a method for distribution of remote control commands which detects remote control signals within a wide range of frequencies, samples and transfers them to the server device and regenerates them in the server device and transmits them to the external device.
[11] For that purpose, a solution has been provided to the problem by realizing a method for distribution of remote control commands wherein the receiver on the screen comprises a photodiode sensitive to infrared light.
[12] Detailed Description of the Invention
[13] A method for distribution of remote control commands realized to fulfill the objectives of the present invention is illustrated in the accompanying figure, in which;
[14] Figure 1 is the block diagram of the inventive method for distribution of remote control commands.
[15] The parts in the figures are individually numbered, where the numbers refer to the following:
[16] 1. Photodiode
[17] 2. Receiver circuit
[18] 3. Home network infrastructure
[19] 4. Receiver connection
[20] 5. Receiver device
[21] 6. Transmitter connection
[22] 7. Transmitter circuit
[23] 8. Light emitting diode
[24] 9. Transmitter device
[25] The inventive method for distribution of remote control commands comprises a receiver device (5) consisting of a filterless photodiode (1) which detects remote control signals and is sensitive to infrared, a receiver circuit (2) which samples the signals detected by the said photodiode (1) and a receiver connection (4) which ensures transfer of the sampled data to the home network infrastructure (3); a transmitter device (9) consisting of a transmitter connection (6) which ensures receipt of the sampling data transferred via home network infrastructure (3); a transmitter circuit (7) which generates a control command out of the said sampling data and a light emitting diode (LED) (8) which sends the said control signal to the external device and a home network infrastructure (3) providing data transfer between the receiver (5) and transmitter (9) devices.
[26] The photodiode (1), sensitive to infrared, disposed on the said receiver device (5) is filterless whereby it ensures detection of signals in all of the received carrier frequencies. Assuming that the received carrier frequencies will be 30 KHz to 56 KHz, the receiver circuit (2) on the receiver device (5) generates sampling data from these signals by sampling about 350 KHz so that at least 6 samples will be taken. The said generated sampling data are transmitted to the home network infrastructure (3) via the receiver connection (4) on the receiver device (5). A sampling data contains all the information regarding both the carrier frequency and the remote control protocol used.
[27] The said home network infrastructure (3) is a system known in the state of the art which although may be any system which is able to perform data transfer by wired or wireless means, it is preferably a system which performs data transfer by using the electric installation circuit and sockets already present at home and being used for the operation of electrical appliances.
[28] The transmitter device (9) is preferably disposed on the server device, and it sends the sampling data received via the transmitter connection (6) located on the transmitter device to the transmitter circuit (7). The transmitter circuit (7) generates a control command from the received sampling data by using various interpolation and quantification methods. The control commands generated by the transmitter circuit (7) are sent to external devices via a light emitting diode (LED) (8) which is also disposed on the transmitter device (9). Thus, signals containing the said command, which is the same as the one received by the receiver device (5), are delivered to external devices within the field of view of the light emitting diode (8) upon being regenerated by the transmitter device (9).
[29] The said receiver circuit (2) essentially comprises an analog-to-digital converter, a memory, a communication protocol and a microprocessor. The transmitter circuit (7) essentially comprises a digital-to- analog converter, a memory, a communication protocol and a microprocessor. The said memory can be a permanent memory (flash) or a random access memory (RAM). The communication protocol can be UART, I2C and etc. [30] While the transmitter device (9) can be independent from the server device with all its components, some parts disposed thereon (for example memory, microprocessor, etc.) can be jointly used with the server device. [31] These receiver (5) and transmitter (9) devices are not informed about the frequencies and protocols of the control signals sent. Their function is only transfer of the said signals to the concerned external device accurately and without loss. [32] Within the framework of the basic principles described herein, development of various embodiments of the invention is possible and the details not described in this description are details known by a person skilled in the art. The invention is essentially according to the claims.

Claims

Claims
[1] A method for distribution of remote control commands used in display systems consisting of a single server to which various external devices which can play images and/or sounds are connectable, and a screen to which the said server can connect via home network without requiring an additional cable and which only performs display function, comprising a receiver device (5) consisting of a photodiode (1) which detects remote control signals, a receiver circuit (2) which samples the signals detected by the said photodiode (1) and a receiver connection (4) which ensures transfer of the sampled data to the home network infrastructure (3); a transmitter device (9) consisting of a transmitter connection (6) which ensures receipt of the sampling data transferred via home network infrastructure (3); a transmitter circuit (7) which generates a control command out of the said sampling data and a light emitting diode (LED) (8) which sends the said control signal to the external devices and a home network infrastructure (3) providing data transfer between the receiver (5) and transmitter (9) devices, characterized in that the said photodiode is sensitive to infrared and filterless.
[2] A method for distribution of remote control commands according to Claim 1, characterized in that the receiver device is arranged on the screen.
[3] A method for distribution of remote control commands according to Claim 1 or
Claim 2, characterized in that the receiver circuit (2) generates sampling data from the signals detected by the photodiode (1).
[4] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the said sampling data includes all the information regarding both the carrier frequency and the remote control protocol used.
[5] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the said home network infrastructure (3) can be any system which is able to perform data transfer by wired or wireless means.
[6] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the said home network infrastructure (3) can be any system which performs data transfer by using the electric installation circuit and sockets already present at home and being used for the operation of electrical appliances.
[7] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the transmitter device (9) is located on the server device.
[8] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the transmitter circuit (7) generates a control command from the sampling data coming from the receiver device (5) via the home network infrastructure, by using various interpolation and quantification methods.
[9] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the control commands generated by the transmitter circuit (7) are sent to the external devices via a light emitting diode (LED) (8) which is also disposed on the transmitter device (9).
[10] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the receiver circuit (2) comprises an analog-to-digital converter, a memory, a communication protocol and a microprocessor.
[11] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the transmitter circuit (7) comprises a digital-to-analog converter, a memory, a communication protocol and a microprocessor.
[12] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the said memory comprised by the receiver (2) and transmitter (7) circuits is a permanent memory (flash).
[13] A method for distribution of remote control commands according to any one of
Claim 1 to 11, characterized in that the said memory comprised by the receiver (2) and transmitter (7) circuits is a random access memory (RAM).
[14] A method for distribution of remote control commands according to any one of the preceding claims, characterized in that the transmitter device (9) is independent from the server device with all its components.
[15] A method for distribution of remote control commands according to any one of
Claim 1 to 11, characterized in that some parts of the transmitter device (9) such as the memory and the microprocessor disposed thereon are jointly used with the server device.
PCT/IB2007/055047 2006-12-20 2007-12-12 A method for distribution of remote control commands WO2008078220A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2006/07289 2006-12-20
TR200607289 2006-12-20

Publications (2)

Publication Number Publication Date
WO2008078220A2 true WO2008078220A2 (en) 2008-07-03
WO2008078220A3 WO2008078220A3 (en) 2008-10-16

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1133084A1 (en) * 2000-03-06 2001-09-12 Tektronix, Inc. An optical reference receiver and output amplifier without a discrete filter
US20030195969A1 (en) * 2002-04-04 2003-10-16 Neuman Darren D. System and method supporting infrared remote control over a network
DE102005024204A1 (en) * 2005-05-25 2006-11-30 Vishay Semiconductor Gmbh Infrared remote control signal processing circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1133084A1 (en) * 2000-03-06 2001-09-12 Tektronix, Inc. An optical reference receiver and output amplifier without a discrete filter
US20030195969A1 (en) * 2002-04-04 2003-10-16 Neuman Darren D. System and method supporting infrared remote control over a network
DE102005024204A1 (en) * 2005-05-25 2006-11-30 Vishay Semiconductor Gmbh Infrared remote control signal processing circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GIFFARD T: "MULTI-POINT INFRA-RED REMOTE CONTROL" ELEKTOR ELECTRONICS, ELEKTOR ELECTRONICS, TUNBRIDGE WELLS, GB, vol. 15, no. 166, 1 April 1989 (1989-04-01), pages 31-33, XP000111133 ISSN: 0268-4519 *

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