WO2007043778A1 - Systeme de reception de telediffusion a sorties multiples - Google Patents

Systeme de reception de telediffusion a sorties multiples Download PDF

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Publication number
WO2007043778A1
WO2007043778A1 PCT/KR2006/004006 KR2006004006W WO2007043778A1 WO 2007043778 A1 WO2007043778 A1 WO 2007043778A1 KR 2006004006 W KR2006004006 W KR 2006004006W WO 2007043778 A1 WO2007043778 A1 WO 2007043778A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
filter
remocon
network
remote control
Prior art date
Application number
PCT/KR2006/004006
Other languages
English (en)
Inventor
Hwa-Seop Lim
In-Ki Kim
Hyun-Chul Kim
Soo-Won Kim
Original Assignee
Kaonmedia Co., Ltd.
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 Kaonmedia Co., Ltd. filed Critical Kaonmedia Co., Ltd.
Publication of WO2007043778A1 publication Critical patent/WO2007043778A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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
    • 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
    • H04N21/43—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
    • 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
    • H04N21/47—End-user applications
    • 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
    • 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
    • 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
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/2849—Audio/video appliances

Definitions

  • the present invention relates a multi-out broadcasting receiver system which enables, with letting multiple of set-top boxes, DVD players, VTR's be rack-type positioned, independent remote control via network from a distant location, and further enables remote control using a wireless remocon for the devices from a distant location in a house or other specific location where those devices are not positioned.
  • a digital broadcasting receiver for receiving digital television broadcast, e.g. Set- Top Box (hereinafter, "STB"), helps users seletively watch the broadcast program by reconstructing, using a built-in decoder, origianl A/V (Audio/Video) data for a user-selected broadcast program and outputing the reconstructed to a A/V output device, e.g. TV.
  • STB Set- Top Box
  • each room is equipped a TV for its own. If these TV's are connected to single STB, it has advantage that through these TV's, users may watch satellite broadcast, cable broadcast, and digital terrestrial broadcast, etc.
  • the prior art technology has problems that, regarding various kinds of independent devices such as set-top boxes, DVD players and VTR's, as those devices may be controlled only when directly connected to a TV receiver, the watching is available only via a single TV which is directly connected to the devices.
  • an object of the present invention is to provide a multi-out broadcasting receiver system which enables, with letting multiple of set-top boxes, DVD players, VTR's be rack- type positioned, via pre-installed network in a house or other locations, the independent and selective remote control via network from a distant location for various kinds of set-top boxes, DVD players, VTR's, and further enables the independent and selective remote control with only one set of TV receiver for multiple of set-top boxes, DVD players, VTR's.
  • the multi-out broadcasting receiver system comprises, a system resource manager for receiving RF channel (l ⁇ n) signals from multiple of set-top boxes which individually operating upon receiving remocon keycode signal and mixing the RF channel (l ⁇ n) signals into a single RF signal, for separating remocon signal from a received remote conteol signal, for identifying selection code for the remocon signal, and for providing a remocon keycode signal to a set-top box out of multiple of set-top boxes corresponding to the selection code; a host network connector having a first filter and a second filter, the first filter for filtering the remote control signal via a network so as to provide the filtered remote control signal to the system resource manager, the second filter for, receiving the single RF signal from the system resource manager, filtering the single RF signal so as to pass the single RF signal onto the network; at least one remocon signal receiver for sensing and outputting remote control signal transmitted from a wireless remo
  • the multi-out broadcasting receiver system comprises, a system resource manager for receiving RF channel (l ⁇ n) signals from multiple of set-top boxes which individually operating upon receiving remocon keycode signal and mixing the RF channel (l ⁇ n) signals into a single RF signal so as to be outputted onto a specific network, for separating remocon signal from a remote conteol signal received via the network, for identifying selection code for the remocon signal, and for providing a remocon keycode signal to a set-top box out of multiple of set-top boxes corresponding to the selection code; at least one remocon signal receiver for sensing remote control signal transmitted from a wireless remocon, and outputting the remote control signal onto the network; and at least one guest network connector having a fourth filter for filtering to pass the single RF signal provided via the network.
  • the multi-out broadcasting receiver system is advantageous in that, under letting multiple of set-top boxes, DVD players, VTR's be rack- type positioned, with being enabled the independent remote control via network from a distant location, and further with being enabled the remote control using a wireless remocon from a distant location in a house or other specific location where those devices are not positioned, as various kinds of set-top boxes,
  • DVD players, VTR's can be independently and selectively controlled from a distant location, only one set of TV receiver is required in order to independently operate multiple of set-top boxes, DVD players, VTR's.
  • additional cable engineering or an expensive RF (UHF) remocon are not required, which let the installation being easily accomplished in lower cost.
  • FIG. 1 is a diagram illustrating a construction of the multi-out broadcasting receiver system according to an embodiment of the present invention
  • FIG. 2 is a diagram illustrating an internal construction of the system resource manager for the multi-out broadcasting receiver system shown in the FIG. 1
  • FIG. 3 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 1, in case multiple of rooms is positioned in distant locations
  • FIG. 4 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 1, in case the system is implemented in a house or a specific location
  • FIG. 20 is a diagram illustrating a construction of the multi-out broadcasting receiver system according to an embodiment of the present invention
  • FIG. 2 is a diagram illustrating an internal construction of the system resource manager for the multi-out broadcasting receiver system shown in the FIG. 1
  • FIG. 3 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 1, in case multiple of rooms is positioned in distant locations
  • FIG. 5 is a diagram illustrating a contraction of the multi-out broadcasting receiver system according to other embodiment of the present invention
  • FIG. 6 is a diagram illustrating an internal construction of the system resource manager for the multi-out broadcasting receiver system shown in the FIG. 5,
  • FIG. 7 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 5, in case multiple of rooms is positioned in distant locations
  • FIG. 8 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 5, in case the system is implemented in a house or a specific location. [24]
  • FIG. 1 is a diagram illustrating a construction of the multi-out broadcasting receiver system according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an internal construction of the system resource manager for the multi-out broadcasting receiver system shown in the FIG. 1.
  • FIG. 3 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 1, in case multiple of rooms is positioned in distant locations.
  • FIG. 4 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 1, in case the system is implemented in a house or a specific location,
  • the multi-out broadcasting receiver system includes a system resource manager 110, a host network connector 120 having a first filter 121 and a second filter 122, at least one remocon signal receiver 130, and a guest network connector 140 having a third filter 141 and a fourth filter 142.
  • the system resource manager 110 receives RF channel (l ⁇ n) signals from multiple of set- top boxes 101 which individually operating upon receiving remocon key code signal, and mixes the RF channel (l ⁇ n) signals into a single RF signal so as to be outputted.
  • the system resource manager 110 separates remocon signal from a received remote conteol signal, and identifies selection code for remocon signal so as to provide the remocon key code signal to a set- top box out of the set- top boxes 101 corresponding to the selection code.
  • the system resource manager 110 comprises selection mixer
  • the selection mixer 111 of the system resource manager 110 receives RF channel ( l ⁇ n) signals from set- top boxes 101 via individual signal line, and selectively mixes the RF channel (l ⁇ n) signals into a single RF signal so as to output the single RF signal to the second filter 122.
  • the signal separater 112 of the system resource manager 110 receives remocon control signal provided from the first filter 121, separates remocon signal out of the remote control signal, and outputs the remocon signal to the controller 113.
  • the controller 113 of the system resource manager 110 receives the remocon signal provided from the signal separater 112, identifies a selection code out of the remocon signal, and outputs the remocon keycode signal to a set-top box out of the set-top boxes 101 corresponding to the selection code.
  • the set- top box 101 which has received the remocon keycode signal is operated and remote controlled by user.
  • the controller 113 upon receiving remocon signals for controlling the same set-top box from different locations, outputs the remocon keycode signals by FIFO (First- In-First-Out) to the set- top box 101.
  • FIFO First- In-First-Out
  • a priority-based master key method may be adopted instead of the FIFO method.
  • remote control signal filters the remote control signal and provides the filtered remote control signal to the system resource manager 110.
  • the second filter 122 of the host network connector 120 upon receiving the single RF signal provided from the system resource manager 110, filters the single RF signal and passes the single RF signal onto the network 10.
  • the remocon signal receiver 130 senses remote control signal which transmitted from a wireless remocon 30, and outputs the sensed remote control signal.
  • the third filter 141 of the guest network connector 140 upon receiving remote control signal provided from remocon signal receiver 130, filters the remote control signal and passes the filtered remote control signal on the network 10.
  • the fourth filter 142 of the guest network connector 140 filters the single RF signal provided via network 10 and passes the single RF signal to the TV receiver 20.
  • the first filter 121 and the third filter 141 are low pass filters (LPF) which covering bandwidth of remocon signal frequency range, and the second filter 122 and the fourth filter 142 are high pass filters (HPF) which covering bandwidth of VHF/UHF frequency range.
  • LPF low pass filters
  • HPF high pass filters
  • the system resource manager 110 may be constructed as one single set which includes the host network connector 120 having the first filter 121 and the second filter 122.
  • the guest network connector 140 having the third filter 141 and the fourth filter 142 may be constructed as one single set which includes the remocon signal receiver 130.
  • the guest network connector 140 further comprises a FSK modulater (not shown) for FSK (Frequency Shift Keying) modulating the remote control signal provided from the remocon signal receiver 130.
  • the host network connector 120 further comprises a FSK demodulator (not shown) for FSK demodulating the FSK-modulated remote control signal.
  • the network 10 is a pre-installed TV coaxial cable (RF cable) or other post- installed network cable, and constitute a network between distant locations by connecting multiple of RF terminals 11.
  • RF cable TV coaxial cable
  • the wireless remocons 30 used in distant rooms may be provided as multiple different ones for different kinds of set- top boxes 101 or may be provided as universal remocons.
  • the TV receiver 20 receives A/V remote broadcasting signal which is filtered by the fourth filter 142, and displays the corresponding program for users.
  • the remocon signal receiver 130 senses the remote control signal transmitted by the wireless remocon 30 and outputs the sensed signal to the third filter 141 of the guest network connector 140.
  • the third filter 141 of the guest network connector 140 does low pass filtering for the remote control signal provided from the remocon signal receiver 130, and outputs the filtered signal onto network 10.
  • the remote control signal is provided from the network 10 to the first filter 121 of the host network connector 120, and the first filter 121 does low pass filtering for the remote control signal provided from the network 10 and provides the filtered signal to the system resource manager 110.
  • the signal separater 112 of the system resource manager 110 seperates remocon signal out of the remote control signal provided from the first filter 121, and outputs the separated signal to the controller 113.
  • the controller 113 of the system resource manager 110 identifies selection code out of the remocon signal provided from the signal separater 112, and provides the remocon key code signal to a set- top box out of the set- top boxes 101 corresponding to the selection code.
  • the corresponding set- top box 101 having received the remocon keycode signal is operated and is remote controlled by users.
  • the single RF signal outputted from the selection mixer 111 of the system resource manager 110, is provided to the second filter 122 of the host network connector 120.
  • the single RF signal is selectively mixed signal from RF channel (l ⁇ n) signals from multiple of set-top boxes which individually operating upon receiving remocon keycode signal.
  • the second filter 122 of the host network connector 120 does high pass filtering for the single RF signal which has been provided via the system resource manager 110, and passes the filtered signal onto the network 10.
  • the fourth filter 142 does high pass filtering for the single RF signal provided from the network 10 and provides the filtered signal to the TV receiver 20.
  • the TV receiver 20 receives A/V remote broadcasting signal which is provided from the fourth filter 142 of the guest network connector 140, and displays the corresponding program for users.
  • FIG. 5 is a diagram illustrating a contraction of the multi-out broadcasting receiver system according to other embodiment of the present invention.
  • FIG. 6 is a diagram illustrating an internal construction of the system resource manager for the multi-out broadcasting receiver system shown in the FIG. 5.
  • FIG. 7 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 5, in case multiple of rooms is positioned in distant locations.
  • FIG. 8 is a diagram illustrating a contraction of the multi-out broadcasting receiver system shown in the FIG. 5, in case the system is implemented in a house or a specific location.
  • the multi-out broadcasting receiver system includes a system resource manager 210, at least one remocon signal receiver 230, and at least one guest network connector 240 having a fourth filter 242.
  • the system resource manager 210 receives RF channel (l ⁇ n) signals from multiple of set- top boxes 201 which individually operating upon receiving remocon key code signal, and mixes the RF channel (l ⁇ n) signals into a single RF signal so as to be outputted.
  • the system resource manager 210 separates remocon signal from a received remote conteol signal, and identifies selection code for remocon signal so as to provide the remocon key code signal to a set- top box out of the set- top boxes 201 corresponding to the selection code.
  • the system resource manager 210 comprises selection mixer
  • the selection mixer 211 of the system resource manager 210 receives RF channel
  • (l ⁇ n) signals from set- top boxes 201 via individual signal line, and selectively mixes the RF channel (l ⁇ n) signals into a single RF signal so as to output the single RF signal to a specific network 10.
  • the signal separater 212 of the system resource manager 210 receives remocon control signal provided from the network 10, separates remocon signal out of the remote control signal, and outputs the remocon signal to the controller 213.
  • the controller 213 of the system resource manager 210 receives the remocon signal provided from the signal separater 212, identifies a selection code out of the remocon signal, and outputs the remocon keycode signal to a set-top box out of the set-top boxes 201 corresponding to the selection code.
  • FIFO First- In-First-Out
  • a priority-based master key method may be adopted instead of the FIFO method.
  • the system resource manager 210 may further comprise a host network connector
  • the remocon signal receiver 230 senses remote control signal which transmitted from a wireless remocon 30, and outputs the sensed remote control signal.
  • the fourth filter 242 of the guest network connector 240 filters the single RF signal provided via network 10 and passes the single RF signal to the TV receiver 20.
  • the guest network connector 240 may further comprise a third filter 241 which, upon receiving remote control signal provided from remocon signal receiver 230, filters the remote control signal and passes the filtered remote control signal on the network 10.
  • the first filter 221 and the third filter 241 are low pass filters (LPF) which covering bandwidth of remocon signal frequency range, and the second filter 222 and the fourth filter 242 are high pass filters (HPF) which covering bandwidth of VHF/UHF frequency range.
  • LPF low pass filters
  • HPF high pass filters
  • the system resource manager 210 may be constructed as one single set which includes the host network connector 220 having the first filter 221 and the second filter 222.
  • the guest network connector 240 having the third filter 241 and the fourth filter 242 may be constructed as one single set which includes the remocon signal receiver 230.
  • the guest network connector 240 further comprises a FSK modulater (not shown) for FSK (Frequency Shift Keying) modulating the remote control signal provided from the remocon signal receiver 230.
  • the host network connector 220 further comprises a FSK demodulator (not shown) for FSK demodulating the FSK-modulated remote control signal.
  • the network 10 is a pre-installed TV coaxial cable (RF cable) or other post- installed network cable, and constitute a network between distant locations by connecting multiple of RF terminals 11.
  • RF cable TV coaxial cable
  • the remocon signal receiver 230 senses the remote control signal transmitted by the wireless remocon 30 and outputs the sensed signal to the network 10.
  • the remote control signal which has been provided to the network 10 is provided to the system resource manager 210. Then, the signal separater 212 of the system resource manager 210 seperates remocon signal out of the remote control signal provided via the network 10, and outputs the separated signal to the controller 213.
  • the controller 213 of the system resource manager 210 identifies selection code out of the remocon signal provided from the signal separater 212, and provides the remocon key code signal to a set- top box out of the set- top boxes 201 corresponding to the selection code.
  • the single RF signal outputted from the selection mixer 211 of the system resource manager 210, is provided to the network 10, and the single RF signal provided to the network 10 is provided to the fourth filter 242 of the guest network connector 240.
  • the fourth filter 242 does high pass filtering for the single RF signal provided from the network 10, and provides the filtered signal to the TV receiver 20.
  • the TV receiver 20 receives the high-pass filtered A/V remote broadcasting signal provided from the fourth filter 242 of the guest network connector 240, and displays the corresponding program for users.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Details Of Television Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un système récepteur de télédiffusion à sorties multiples pouvant comporter en baie de multiples boîtiers décodeurs, lecteurs DVD et magnétoscopes à bande, qui est équipé d'une télécommande indépendante pouvant être utilisée par l'intermédiaire d'un réseau depuis un lieu éloigné, et permet en outre d'utiliser une télécommande sans fil pour télécommander des dispositifs depuis un lieu éloigné d'une maison ou d'un autre lieu spécifique. Ce système récepteur de télédiffusion à sorties multiples est avantageux en ce qu'il permet de télécommander indépendamment et sélectivement depuis un lieu éloigné divers types de boîtiers décodeurs, lecteurs DVD et magnétoscopes à bande, et ne requiert qu'un seul téléviseur pour actionner indépendamment les multiples dispositifs.
PCT/KR2006/004006 2005-10-07 2006-10-04 Systeme de reception de telediffusion a sorties multiples WO2007043778A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2005-0094312 2005-10-07
KR1020050094312A KR100717513B1 (ko) 2005-10-07 2005-10-07 다중 출력 방송 수신 시스템

Publications (1)

Publication Number Publication Date
WO2007043778A1 true WO2007043778A1 (fr) 2007-04-19

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PCT/KR2006/004006 WO2007043778A1 (fr) 2005-10-07 2006-10-04 Systeme de reception de telediffusion a sorties multiples

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100956842B1 (ko) 2009-07-24 2010-05-11 (주)엔에스티 다수의 이종 ｉｐｔｖ 셋톱박스를 지원하는 블루투스 기반 ｉｐｔｖ 리모콘

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000052930A1 (fr) * 1999-03-04 2000-09-08 Starsight Telecast, Inc. Systeme et procedes de guide de programmes electronique, multiple et interactif
KR20020090727A (ko) * 2001-05-29 2002-12-05 주식회사 네이버월드 셋탑박스 네트워크 시스템 및 그 시스템에서의 정보교환방법
KR20050049226A (ko) * 2003-11-21 2005-05-25 한국전자통신연구원 다수의 셋탑박스에 저장장치 공유 기능을 제공하는홈게이트웨이 시스템 및 그를 이용한 저장장치 공유서비스 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100442673B1 (ko) * 2001-08-03 2004-08-02 주식회사 한단정보통신 다중 채널 송수신 시스템 및 그 제어방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000052930A1 (fr) * 1999-03-04 2000-09-08 Starsight Telecast, Inc. Systeme et procedes de guide de programmes electronique, multiple et interactif
KR20020090727A (ko) * 2001-05-29 2002-12-05 주식회사 네이버월드 셋탑박스 네트워크 시스템 및 그 시스템에서의 정보교환방법
KR20050049226A (ko) * 2003-11-21 2005-05-25 한국전자통신연구원 다수의 셋탑박스에 저장장치 공유 기능을 제공하는홈게이트웨이 시스템 및 그를 이용한 저장장치 공유서비스 방법

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KR20070039229A (ko) 2007-04-11

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