EP3304890A1 - System for remotely updating transponders in an image display device - Google Patents

System for remotely updating transponders in an image display device

Info

Publication number
EP3304890A1
EP3304890A1 EP15731526.8A EP15731526A EP3304890A1 EP 3304890 A1 EP3304890 A1 EP 3304890A1 EP 15731526 A EP15731526 A EP 15731526A EP 3304890 A1 EP3304890 A1 EP 3304890A1
Authority
EP
European Patent Office
Prior art keywords
processing device
signal processing
transponder
signal
remote server
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15731526.8A
Other languages
German (de)
French (fr)
Inventor
Oguzhan KOSAR
Sibel Sezen MALKOS
Fatih Aslan
Murat EGE
Melike Deniz ALTINYAPRAK
Omer KOC
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP3304890A1 publication Critical patent/EP3304890A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H04H60/43—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels
    • 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management e.g. creating a master electronic programme guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite

Definitions

  • the present invention relates to a signal processing device having transponder list update function, the update function, when called, effecting updating of the transponder list in a periodical manner.
  • Digital and interactive TV systems provide a comprehensive amount of TV channels and programs leading to the general outcome that conventional methods for configuring the operation of the image display device from among a plurality of setting parameters may become inefficient to the extent that it is basically unperformable in a time-saving manner.
  • An image display device may receive programs via cable or satellite broadcasting in the form of separate subscription formats. Considering the fact that a large number of television and multimedia services are being made available to consumers, methods for enabling the host, i.e. an image display device such as a TV set with a digital receiver-decoder to satisfactorily process the received services are required.
  • a transponder typically receives a television signal on the ground from satellite uplink stations and processes the signal by encoding, amplifying and rebroadcasting the same. Satellite receivers then transmit the same to a digital receiver of an end-user so that it is decoded and displayed on an image display device.
  • an image display device can be factory-configured such that channel information is preloaded for a plurality of channels, in which case, the image display device will be ready for the first use.
  • users can initiate auto-scan function to automatically retrieve channel-specific information, based on a preloaded frequency range or transponder information.
  • the present invention therefore substantially facilitates maintenance of the channel information.
  • US2010211978 discloses a network-enabled image display device sending a geographic location to an Internet server and in response receiving back a list of TV service providers for the location. A user selects a provider and the server in response downloads the channel map pertaining to the selected provider.
  • the present invention provides a system and method by which a signal processing device is operable so as to automatically manage configuration of channel settings in a substantially facilitated and non-intrusive manner without requiring additional actions on the part of the user.
  • Primary object of the present invention is to provide a system and method by which management of channel information in an image display device is carried out automatically in a periodical manner by which inaccurate or outdated settings are clearable.
  • the present invention proposes a signal processing device in the form of a receiver or image display device.
  • the signal processing device receives a plurality of broadcasting services by means of at least one satellite tuner supplying transport streams to a digital TV processor.
  • the digital TV processor periodically updates the transponder list by connecting to a network resource such as a remote server through a network connection.
  • the updating operation is carried out even if there was no signal lock failure during the most recent auto-scan or blind scan operation.
  • the signal processing device also connects to the remote server each time before initiation of the manual or scheduled automatic scan function is to be effected.
  • the signal processing device also automatically connects to the remote server in a periodical manner to update the transponder list and automatically initiates channel scanning operation if an updated transponder list is available.
  • the signal processing device advantageously keeps records of all of the previous transponder lists as downloaded from the remote server and uses these transponder parameters in the earlier transponder lists to check whether older transponder parameters in relation to a given channel provide signal lock.
  • Fig. 1 demonstrates a general flow diagram according to which the signal processing device of the invention executes the method according to the present invention.
  • Fig. 2 demonstrates part of an exemplary xml file containing transponder parameters according to the present invention.
  • the present invention proposes a signal processing device in the form of an image display device or a set-top box receiving programs via satellite broadcasting for instance in the form of separate subscription formats.
  • a set-top box typically contains at least one tuner input, operating in connection with an image display device.
  • the image display device itself can receive programs using built-in satellite tuners.
  • Digital and interactive TV systems provide a comprehensive amount of TV channels and programs.
  • a conventional structure receiving program contents receives a transport stream via a tuner.
  • the receiver-decoder In order for viewing a first program content and processing a second program content, the receiver-decoder should have two tuners, which also enables various types of services including interactive functions such as picture-in-picture.
  • the signal processing device in the form of an image display device in accordance with the invention can be connected to a set-top box, the latter having at least one tuner.
  • the image display device itself or the receiver (set-top box) can therefore have multiple tuners as well as demodulator suitable for receiving broadcast multimedia content.
  • receivers capable of receiving and tuning to signals of different generations can be in use.
  • a digital TV processor, a memory unit associated with the digital TV processor and a display unit form part of the system.
  • the memory unit typically serves for storing the operating and interface software and channel database.
  • the tuners are typically connected to dish antennas collecting satellite signals to be focused by the parabolic curvature thereof.
  • signal received from a satellite dish is amplified by a low noise amplifier (LNA) and converted to IF signal (Intermediate frequency) in the form of a block of frequencies by a block converter (the LNB, low noise block downconverter), which can be then processed by the demodulators.
  • the demodulators typically output transport streams to the digital TV processor having an audio/video processing unit, which accordingly processes the transport streams and retrieves service data for all the channels.
  • the intermediate frequency is typically created by mixing the carrier signal with a local oscillator signal by heterodyning, which allows the signals in microwave frequencies to be sent over a length of cable.
  • the output of the mixer is an IF signal of a specific bandwidth that can be amplified.
  • transponder When processing the signal received from the satellite dish, specific transponder information of each channel is needed.
  • a transponder typically receives a television signal from the satellite uplink stations on the ground, encoding, amplifying and rebroadcasting the same.
  • Transponder parameters typically involve satellite name, transponder frequency in MHz, polarization, symbol rate in Ksym/s etc.
  • television broadcasting signals are searched and parameters such as frequency, symbol rate and polarization of a transponder are fed to the respective demodulator to verify whether signal lock is achieved.
  • a so-called blind search can be carried out in the manner that signals within the entire band are scanned or the signal processing device steps through a range of transponders.
  • the transponder list typically comprises transponders with different polarization (Vertical, horizontal) and low or high local oscillator frequencies.
  • the open standard Digital Satellite Equipment Control (DiSEqC) relies on DiSEqC messages carried on a modulated 22 kHZ tone in the form of sequences of short bursts communicated to the low noise block downconverter (LNB) by the receiver.
  • DiSEqC Digital Satellite Equipment Control
  • the image display device is factory-configured to have a satellite’s transponder list.
  • the actual transponder list of a satellite can expand in time so as to accommodate new entries along with old ones, a channel whose transponder information is not updated will typically be viewed as a blank screen during channel surfing.
  • the present invention proposes a system and a method for operating an image display device, having a transponder list updating function as delineated below.
  • the automatic function of the invention can be called on a periodical basis by setting a time interval such that an updated transponder list is obtained and channels that exhibit signal error are thereby automatically cleared.
  • the signal processing device of the present invention executes the method of updating the transponder list in the following manner:
  • the signal processing device is configured by the user to initiate automatic channel list retrieving function.
  • the signal processing device starts the channel information retrieving operation by way of connecting to a remote server through an Internet connection, the remote server containing an up-to-date list of transponders of the respective satellite.
  • the signal processing device carries out the transponder list updating operation irrespective of whether the most recent auto-scan or blind scan operation was terminated with no signal lock failure notifications. Therefore, the signal processing device periodically effectuates updating of the transponder list irrespective of the successful signal lock verification in relation to all of the present channels.
  • the signal processing device connects to the dedicated remote server each time before initiation of the manual or scheduled automatic scan function is to be effected. More preferably, the signal processing device automatically connects to the remote server in a periodical manner to update the transponder list and automatically initiates channel retrieving operation only if an updated transponder list is available.
  • the signal processing device keeps record of all of the previous transponder lists as downloaded from the remote server and in the event that an existing channel becomes unavailable and no transponder list update is available or a temporary interruption of Internet connectivity is in question, the transponder information stored in the earlier transponder lists is used to check whether older transponder parameters in relation to a given channel provide signal lock. This is especially advantageous in cases where new parameters are replaced by previous parameters, a situation observable on an infrequent basis.
  • the present invention ensures that the channel information retrieving operation carried out without intervention of the user is a stage during which the signal processing device also automatically updates transponders and accordingly retrieves associated channels.
  • the present invention proposes a signal processing device receiving a plurality of broadcasting services and comprising a digital TV processor and at least one tuner in association with a demodulator which supply transport streams, the signal processing device being further able to communicate with a display unit.
  • the digital TV processor is configured to periodically effect initiation of a transponder list updating operation by connecting to a dedicated remote server through a network connection irrespective of whether the most recent auto-scan or blind scan operation was terminated with no signal lock failure notifications or whether successful signal lock verification for all of the channels was obtained, whereby an updated transponder list is retrieved before a signal lock failure occurs.
  • the signal processing device connects to the remote server each time before initiation of the manual or scheduled automatic scan function is to be effected.
  • the signal processing device automatically connects to the remote server in a periodical manner to update the transponder list and automatically initiates channel retrieving operation if an updated transponder list is available.
  • the signal processing device keeps records of all of the previous transponder lists as downloaded from the remote server.
  • the signal processing device uses the transponder information stored in the earlier transponder lists to check whether older transponder parameters in relation to a given channel provide signal lock.
  • the signal processing device comprises at least one DVB-S or DVB-S2 tuner.
  • the signal processing device is an image display device or a set-top box.
  • the present invention ensures that configuration of channel information settings can be better managed in a less intrusive manner such that users are offered a less troublesome viewing experience without having to manually update transponders.
  • the present invention therefore substantially facilitates maintenance of the channel information without requiring user intervention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The present invention relates to a signal processing device having transponder list update function, the update function, when called, effecting updating of the transponder list in a periodical manner. More particularly, the present invention proposes a signal processing device receiving a plurality of broadcasting services and comprising a digital TV processor and at least one tuner in association with a demodulator which supply transport streams, the signal processing device being further able to communicate with a display unit.

Description

    SYSTEM FOR REMOTELY UPDATING TRANSPONDERS IN AN IMAGE DISPLAY DEVICE
  • The present invention relates to a signal processing device having transponder list update function, the update function, when called, effecting updating of the transponder list in a periodical manner.
  • Digital and interactive TV systems provide a comprehensive amount of TV channels and programs leading to the general outcome that conventional methods for configuring the operation of the image display device from among a plurality of setting parameters may become inefficient to the extent that it is basically unperformable in a time-saving manner.
  • An image display device may receive programs via cable or satellite broadcasting in the form of separate subscription formats. Considering the fact that a large number of television and multimedia services are being made available to consumers, methods for enabling the host, i.e. an image display device such as a TV set with a digital receiver-decoder to satisfactorily process the received services are required.
  • A transponder typically receives a television signal on the ground from satellite uplink stations and processes the signal by encoding, amplifying and rebroadcasting the same. Satellite receivers then transmit the same to a digital receiver of an end-user so that it is decoded and displayed on an image display device.
  • Assuming that a TV service may have hundreds of channels, configuring channel information for a significant number of channels on a manual basis might take some serious time. It is to be noted that an image display device can be factory-configured such that channel information is preloaded for a plurality of channels, in which case, the image display device will be ready for the first use.
  • Alternatively, users can initiate auto-scan function to automatically retrieve channel-specific information, based on a preloaded frequency range or transponder information.
  • If the auto-scan function is performed such that both the preloaded frequency ranges are scanned, transponder list is checked and an additional blind scan is performed, without inputting any parameters by the user, a substantially longer amount of time is needed for completing this complete network scan.
  • Accordingly, configuration of channel information can be better managed and users can be offered a less troublesome viewing experience without having to manually delete and/or update information on a continual basis. The present invention therefore substantially facilitates maintenance of the channel information.
  • Among others, one of the prior art disclosures in the technical field of the present invention can be referred to as US2010211978, which discloses a network-enabled image display device sending a geographic location to an Internet server and in response receiving back a list of TV service providers for the location. A user selects a provider and the server in response downloads the channel map pertaining to the selected provider.
  • The present invention, on the other hand, provides a system and method by which a signal processing device is operable so as to automatically manage configuration of channel settings in a substantially facilitated and non-intrusive manner without requiring additional actions on the part of the user.
  • Primary object of the present invention is to provide a system and method by which management of channel information in an image display device is carried out automatically in a periodical manner by which inaccurate or outdated settings are clearable.
  • The present invention proposes a signal processing device in the form of a receiver or image display device. The signal processing device receives a plurality of broadcasting services by means of at least one satellite tuner supplying transport streams to a digital TV processor.
  • The digital TV processor periodically updates the transponder list by connecting to a network resource such as a remote server through a network connection. The updating operation is carried out even if there was no signal lock failure during the most recent auto-scan or blind scan operation. The signal processing device also connects to the remote server each time before initiation of the manual or scheduled automatic scan function is to be effected.
  • In addition, the signal processing device also automatically connects to the remote server in a periodical manner to update the transponder list and automatically initiates channel scanning operation if an updated transponder list is available.
  • The signal processing device advantageously keeps records of all of the previous transponder lists as downloaded from the remote server and uses these transponder parameters in the earlier transponder lists to check whether older transponder parameters in relation to a given channel provide signal lock.
  • Accompanying drawings are given solely for the purpose of exemplifying a system and method by which an image display device is operable, whose advantages over prior art were outlined above and will be explained in brief hereinafter.
  • The drawings are not meant to delimit the scope of protection as identified in the claims nor should they be referred to alone in an effort to interpret the scope identified in the claims without recourse to the technical disclosure in the description of the present invention.
  • Fig. 1 demonstrates a general flow diagram according to which the signal processing device of the invention executes the method according to the present invention.
  • Fig. 2 demonstrates part of an exemplary xml file containing transponder parameters according to the present invention.
  • The present invention proposes a signal processing device in the form of an image display device or a set-top box receiving programs via satellite broadcasting for instance in the form of separate subscription formats. A set-top box typically contains at least one tuner input, operating in connection with an image display device. Alternatively, the image display device itself can receive programs using built-in satellite tuners.
  • Digital and interactive TV systems provide a comprehensive amount of TV channels and programs. A conventional structure receiving program contents receives a transport stream via a tuner. In order for viewing a first program content and processing a second program content, the receiver-decoder should have two tuners, which also enables various types of services including interactive functions such as picture-in-picture.
  • The signal processing device in the form of an image display device in accordance with the invention can be connected to a set-top box, the latter having at least one tuner. The image display device itself or the receiver (set-top box) can therefore have multiple tuners as well as demodulator suitable for receiving broadcast multimedia content. In this regard, receivers capable of receiving and tuning to signals of different generations (DVB-S and DVB-S2) can be in use. Conventionally, a digital TV processor, a memory unit associated with the digital TV processor and a display unit form part of the system. The memory unit typically serves for storing the operating and interface software and channel database.
  • The tuners are typically connected to dish antennas collecting satellite signals to be focused by the parabolic curvature thereof. Conventionally, signal received from a satellite dish is amplified by a low noise amplifier (LNA) and converted to IF signal (Intermediate frequency) in the form of a block of frequencies by a block converter (the LNB, low noise block downconverter), which can be then processed by the demodulators. The demodulators typically output transport streams to the digital TV processor having an audio/video processing unit, which accordingly processes the transport streams and retrieves service data for all the channels. As is known to the skilled reader, the intermediate frequency is typically created by mixing the carrier signal with a local oscillator signal by heterodyning, which allows the signals in microwave frequencies to be sent over a length of cable. The output of the mixer is an IF signal of a specific bandwidth that can be amplified.
  • When processing the signal received from the satellite dish, specific transponder information of each channel is needed. A transponder typically receives a television signal from the satellite uplink stations on the ground, encoding, amplifying and rebroadcasting the same. Transponder parameters typically involve satellite name, transponder frequency in MHz, polarization, symbol rate in Ksym/s etc. During a channel scan, typically television broadcasting signals are searched and parameters such as frequency, symbol rate and polarization of a transponder are fed to the respective demodulator to verify whether signal lock is achieved. Alternatively, a so-called blind search can be carried out in the manner that signals within the entire band are scanned or the signal processing device steps through a range of transponders.
  • The transponder list typically comprises transponders with different polarization (Vertical, horizontal) and low or high local oscillator frequencies. The open standard Digital Satellite Equipment Control (DiSEqC) relies on DiSEqC messages carried on a modulated 22 kHZ tone in the form of sequences of short bursts communicated to the low noise block downconverter (LNB) by the receiver.
  • Generally, the image display device is factory-configured to have a satellite’s transponder list. However, as the actual transponder list of a satellite can expand in time so as to accommodate new entries along with old ones, a channel whose transponder information is not updated will typically be viewed as a blank screen during channel surfing.
  • The present invention proposes a system and a method for operating an image display device, having a transponder list updating function as delineated below. The automatic function of the invention can be called on a periodical basis by setting a time interval such that an updated transponder list is obtained and channels that exhibit signal error are thereby automatically cleared.
  • To this end, the signal processing device of the present invention executes the method of updating the transponder list in the following manner: The signal processing device is configured by the user to initiate automatic channel list retrieving function. According to the invention, the signal processing device starts the channel information retrieving operation by way of connecting to a remote server through an Internet connection, the remote server containing an up-to-date list of transponders of the respective satellite. To this end, the signal processing device carries out the transponder list updating operation irrespective of whether the most recent auto-scan or blind scan operation was terminated with no signal lock failure notifications. Therefore, the signal processing device periodically effectuates updating of the transponder list irrespective of the successful signal lock verification in relation to all of the present channels.
  • In a preferred embodiment of the present invention, the signal processing device connects to the dedicated remote server each time before initiation of the manual or scheduled automatic scan function is to be effected. More preferably, the signal processing device automatically connects to the remote server in a periodical manner to update the transponder list and automatically initiates channel retrieving operation only if an updated transponder list is available.
  • In another preferred embodiment of the present invention, the signal processing device keeps record of all of the previous transponder lists as downloaded from the remote server and in the event that an existing channel becomes unavailable and no transponder list update is available or a temporary interruption of Internet connectivity is in question, the transponder information stored in the earlier transponder lists is used to check whether older transponder parameters in relation to a given channel provide signal lock. This is especially advantageous in cases where new parameters are replaced by previous parameters, a situation observable on an infrequent basis.
  • Therefore, the present invention ensures that the channel information retrieving operation carried out without intervention of the user is a stage during which the signal processing device also automatically updates transponders and accordingly retrieves associated channels.
  • In summary, the present invention proposes a signal processing device receiving a plurality of broadcasting services and comprising a digital TV processor and at least one tuner in association with a demodulator which supply transport streams, the signal processing device being further able to communicate with a display unit.
  • The digital TV processor is configured to periodically effect initiation of a transponder list updating operation by connecting to a dedicated remote server through a network connection irrespective of whether the most recent auto-scan or blind scan operation was terminated with no signal lock failure notifications or whether successful signal lock verification for all of the channels was obtained, whereby an updated transponder list is retrieved before a signal lock failure occurs.
  • According to one embodiment of the present invention, the signal processing device connects to the remote server each time before initiation of the manual or scheduled automatic scan function is to be effected.
  • According to a further embodiment of the present invention, the signal processing device automatically connects to the remote server in a periodical manner to update the transponder list and automatically initiates channel retrieving operation if an updated transponder list is available.
  • According to a further embodiment of the present invention, the signal processing device keeps records of all of the previous transponder lists as downloaded from the remote server.
  • According to a further embodiment of the present invention, the signal processing device uses the transponder information stored in the earlier transponder lists to check whether older transponder parameters in relation to a given channel provide signal lock.
  • According to a further embodiment of the present invention, the signal processing device comprises at least one DVB-S or DVB-S2 tuner.
  • According to a further embodiment of the present invention, the signal processing device is an image display device or a set-top box.
  • In this regard, the present invention ensures that configuration of channel information settings can be better managed in a less intrusive manner such that users are offered a less troublesome viewing experience without having to manually update transponders. The present invention therefore substantially facilitates maintenance of the channel information without requiring user intervention.

Claims (7)

  1. A signal processing device receiving a plurality of broadcasting services and comprising a digital TV processor and at least one tuner in association with a demodulator which supply transport streams, the signal processing device being further able to communicate with a display unit, characterized in that
    the digital TV processor is configured to periodically effect initiation of a transponder list updating operation by connecting to a dedicated remote server through a network connection irrespective of whether the most recent auto-scan or blind scan operation was terminated with no signal lock failure notifications or whether successful signal lock verification for all of the channels was obtained, whereby an updated transponder list is retrieved before a signal lock failure occurs.
  2. A signal processing device as in Claim 1, characterized in that the signal processing device connects to the remote server each time before initiation of the manual or scheduled automatic scan function is to be effected.
  3. A signal processing device as in Claim 1, characterized in that the signal processing device automatically connects to the remote server in a periodical manner to update the transponder list and automatically initiates channel retrieving operation if an updated transponder list is available.
  4. A signal processing device as in Claim 1, characterized in that the signal processing device keeps records of all of the previous transponder lists as downloaded from the remote server.
  5. A signal processing device as in Claim 4, characterized in that the signal processing device uses the transponder information stored in the earlier transponder lists to check whether older transponder parameters in relation to a given channel provide signal lock.
  6. A signal processing device as in any preceding Claims, characterized in that the signal processing device comprises at least one DVB-S or DVB-S2 tuner.
  7. A signal processing device as in any preceding Claims, characterized in that the signal processing device is an image display device or a set-top box.
EP15731526.8A 2015-06-04 2015-06-04 System for remotely updating transponders in an image display device Withdrawn EP3304890A1 (en)

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PCT/EP2015/062483 WO2016192801A1 (en) 2015-06-04 2015-06-04 System for remotely updating transponders in an image display device

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EP3304890A1 true EP3304890A1 (en) 2018-04-11

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