CA2393630A1 - Intelligent transceiving method, device and system - Google Patents

Intelligent transceiving method, device and system Download PDF

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Publication number
CA2393630A1
CA2393630A1 CA002393630A CA2393630A CA2393630A1 CA 2393630 A1 CA2393630 A1 CA 2393630A1 CA 002393630 A CA002393630 A CA 002393630A CA 2393630 A CA2393630 A CA 2393630A CA 2393630 A1 CA2393630 A1 CA 2393630A1
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CA
Canada
Prior art keywords
tuner
intelligent transceiver
cable modem
broadcast system
digital
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.)
Granted
Application number
CA002393630A
Other languages
French (fr)
Other versions
CA2393630C (en
Inventor
Jun Maruo
Atsushi Kagami
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Sony Electronics Inc
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2393630A1 publication Critical patent/CA2393630A1/en
Application granted granted Critical
Publication of CA2393630C publication Critical patent/CA2393630C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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 program guide from data received from the Internet and a Head-end, 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]
    • H04N21/40—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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • 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
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • 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
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47211—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting pay-per-view content
    • 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
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4782—Web browsing, e.g. WebTV
    • 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
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • 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
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6168—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6582—Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/161—Constructional details of the subscriber equipment
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests

Abstract

An apparatus and method thereof for communicating a scramble key (for descrambling scrambled digital signals) and service information (used in an electronic programming guide) to an intelligent transceiver (e.g., a set-top box) (450a, b, c, d, e) using a bi-directional digital broadcast system (400).
The intelligent transceiver (450a, b, c, d, e) includes an in-band tuner adapted to receive from the digital broadcast system (400) in-band digital signals comprising audio content and video content. The intelligent transceiver (450a, b, c, d, e) also includes a second tuner adapted to send and receive a scramble key over the World Wide Web via a cable modem. In one embodiment, the in-band digital signals received by the in-band tuner also contain service information. In another embodiment, the digital signals received by the second tuner via the cable modem also contain service information.

Claims (21)

1. In an intelligent transceiver, a method for sending and receiving digital signals within a bi-directional digital broadcast system, said method comprising the steps of:

a) receiving in-band digital signals comprising scrambled audio and video content, said step a) performed by an in-band tuner of said intelligent transceiver; and b) receiving a digital scramble key using a second tuner coupled to a cable modem of said intelligent transceiver, said digital scramble key used for descrambling a scrambled digital signal.
2. The method as recited in Claim 1 wherein said step a) further comprises the step of:

a1) receiving service information at said in-band tuner, said service information used to generate an electronic programming guide.
3. The method as recited in Claim 1 wherein said step b) further comprises the step of:

b1) receiving service information at said second tuner via said cable modem, said service information used to generate an electronic programming guide.
4. The method as recited in Claim 3 wherein said step b1) comprises:

communicating said service information and said digital scramble key using Internet Protocol over the World Wide Web.
5. The method as recited in Claim 1 further comprising the step of:

c) receiving and sending digital signals via a telephone connection using an input/output device of said intelligent transceiver.
6. The method as recited in Claim 1 further comprising the step of:

d) sending an authentication signal from said intelligent transceiver via said cable modem, said authentication signal for indicating said intelligent transceiver is authorized to receive said digital scramble key.
7. The method as recited in Claim 1 further comprising the step of:

e) sending billing information from said intelligent transceiver via said cable modem.
8. The method as recited in Claim 1 further comprising the steps of:

f) descrambling said scrambled audio and video content using a descrambler;

g) decoding output of said descrambler using a decoder; and h) rendering output of said decoder for display on a display device.
9. An intelligent transceiver comprising:

a bus;

an in-band tuner coupled to said bus and adapted to receive from a digital broadcast system in-band digital signals comprising audio content and video content;

a second tuner coupled to said bus and adapted to receive digital signals via the Internet, said digital signals comprising a scramble key used to descramble a scrambled digital signal; and a circuit coupled to said in-band tuner and said second tuner for generating an output audio/video signal for rendering on a display device.
10. The intelligent transceiver of Claim 9 further comprising a cable modem, wherein said digital signals received via the Internet are received by said second tuner via said cable modem and wherein said digital signals received by said cable modem further comprise service information used to generate an electronic programming guide.
11. The intelligent transceiver of Claim 10 wherein said second tuner is further adapted to send an authentication signal to said digital broadcast system via said cable modem, said authentication signal for indicating that said intelligent transceiver is authorized to receive said scramble key.
12. The intelligent transceiver of Claim 10 wherein said second tuner is further adapted to send billing information to said digital broadcast system via said cable modem.
13. A bi-directional digital broadcast system comprising:
an intelligent transceiver comprising:

an in-band tuner for receiving in-band digital signals comprising scrambled audio content and scrambled video content;
a second tuner;
a cable modem coupled to said second tuner, wherein said second tuner is for receiving digital signals via said cable modem, said digital signals received via said cable modem comprising a scramble key used for descrambling a scrambled digital signal and a descrambler for descrambling said scrambled audio content and said scrambled video content, said descrambler for implementing said scramble key.
14. The intelligent transceiver of Claim 9 or the bi-directional digital broadcast system of Claim 13 wherein said in-band digital signals received by said in-band tuner further comprise service information used to generate an electronic programming guide.
15. The bi-directional digital broadcast system of Claim 13 wherein said digital signals received via said cable modem further comprise service information used to generate an electronic programming guide.
16. The intelligent transceiver of Claim 10 or the bi-directional digital broadcast system of Claim 15 wherein said service information and said scramble key are communicated using Internet Protocol over the World Wide Web.
17. The intelligent transceiver of Claim 10 or the bi-directional digital broadcast system of Claim 13 wherein said second tuner is not an out-of band tuner.
18. The intelligent transceiver of Claim 9 or the bi-directional digital broadcast system of Claim 13 wherein said intelligent transceiver further comprises an input/output device for receiving and sending digital signals via a telephone connection.
19. The bi-directional digital broadcast system of Claim 13 wherein an authentication signal is sent by said intelligent transceiver via said cable modem, said authentication signal for indicating said intelligent transceiver is authorized to receive said scramble key.
20. The bi-directional digital broadcast system of Claim 13 wherein billing information is sent by said intelligent transceiver via said cable modem.
21. The bi-directional digital broadcast system of Claim 13 wherein said intelligent transceiver further comprises a decoder for decoding output from said descrambler for rendering on a display device.
CA2393630A 1999-12-29 2000-12-19 Intelligent transceiving method, device and system Expired - Lifetime CA2393630C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/473,625 US6757909B1 (en) 1999-12-29 1999-12-29 Internet set-top box having an in-band tuner and cable modem
US09/473,625 1999-12-29
PCT/US2000/034518 WO2001049031A1 (en) 1999-12-29 2000-12-19 Intelligent transceiving method, device and system

Publications (2)

Publication Number Publication Date
CA2393630A1 true CA2393630A1 (en) 2001-07-05
CA2393630C CA2393630C (en) 2012-04-03

Family

ID=23880336

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2393630A Expired - Lifetime CA2393630C (en) 1999-12-29 2000-12-19 Intelligent transceiving method, device and system

Country Status (7)

Country Link
US (1) US6757909B1 (en)
EP (1) EP1245112A4 (en)
JP (1) JP2003518879A (en)
KR (1) KR100788629B1 (en)
AU (1) AU2279401A (en)
CA (1) CA2393630C (en)
WO (1) WO2001049031A1 (en)

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EP1245112A4 (en) 2005-12-14
KR100788629B1 (en) 2007-12-27
WO2001049031A1 (en) 2001-07-05
KR20030013365A (en) 2003-02-14
AU2279401A (en) 2001-07-09
EP1245112A1 (en) 2002-10-02
JP2003518879A (en) 2003-06-10
CA2393630C (en) 2012-04-03

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