Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2002-06-28
2004-07-13
Olms, Douglas (Department: 2661)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S480000, C709S219000
Reexamination Certificate
active
06763019
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to enabling a customer to access media over a digital subscriber line (DSL) connection, and more particularly to enabling a customer to quickly change channels of media provided over a DSL connection.
BACKGROUND OF THE INVENTION
Twenty-five years ago, telephone carriers primarily used residential telephone lines to provide voice services to customers. For entertainment, customers typically went outside the home, to movie theatres, to restaurants or parks. Broadcast television was the staple diet for channelling entertainment to homes. The cable industry was nascent and consisted primarily of positioning a big antenna and hooking up line amplifiers to feed the received signals to multiple homes. At that time, telephone carriers were satisfied that their share of the voice services market was unchallenged. The cable operators were too small and too specialised to be of much interest.
Today, the predominant service offered by telephone carriers is still voice services. However the boundary between the cable industry and the telecommunication industry is blurring. Cable companies have not stopped at delivering entertainment media. In particular, they are also delivering data services through cable modems and indicated their intentions to compete with the telephone carriers in the delivery of voice services to residential customers.
As technology has advanced, telephone wires and cable wires to homes have become exactly that, wires. What makes each wire different from any other wire is the services that it can provide to customers. In turn, the service that a wire provides determines its importance and value. The more services a single wire can provide a customer, the more valuable the wire is. Thus, separate wires to a home for each type of service has become less important and is often unnecessary.
Over time, the type of access point/connection to the home has become less important than the services it can provide. While it is possible to evaluate the group psyche and examine human behaviour issues to try and determine why predominantly entertainment industries such as cable companies and Internet companies have seen exponential growth patterns, that is not the purpose of this discussion. However, it is important to note that the growth numbers indicate that a mass-market consumer audience when correlated to entertainment has resulted in a market segment that is profitable and is growing. An observation validated by the emergence of cable and Internet companies from humble beginnings to huge conglomerates today.
That observation has two parts. The first part is the growth of a mass-market consumer audience for entertainment provided to the home. The second part is that entertainment has played an equally important role in the emergence of an entirely new revenue sector.
Entertainment can be visual and aural, such as video or movies. Purely visual entertainment can take the form of a book, magazine or newspaper. Aural entertainment can include music, commentary, news broadcasts, and the like. The emergence of an open format for the exchange of visual entertainment over the Internet has been one of the corner stones in the emergence and establishment of dominant online service providers. Entertainment as described above does not differentiate it from information and pure entertainment. However, the differentiator between information and entertainment is more qualitative and subjective. The scope of delivery of these is not necessarily different. Hence, collectively, both visual and aural entertainment can be referred to as media.
For telecommunication companies to compete effectively for customers in the future, they will have to deploy a compelling set of services that include media. These services must at least equate if not exceed the performance of similar services on other networks such as provided by cable companies. It is with respect to these considerations and others that the present invention has been made.
SUMMARY OF THE INVENTION
The present invention is directed to addressing the above-mentioned shortcomings, disadvantages and problems, and will be understood by reading and studying the following specification.
According to one aspect of the invention, a method is provided for an authenticated, fast channel change for media such as video delivered over an Internet Protocol (IP) network to a customer. The invention allows channel changes to be made very quickly with validation at an access node. An example of an access node is a Digital Subscriber Line Access Multiplexer (DSLAM) that provides high speed access to a customer over which a channel is delivered. The reasons that a channel may not be available to the customer could be commercial, i.e., the customer may not have subscribed to or paid for the requested channel. It could also be because a lock has been placed on a requested channel to restrict its availability to the customer based upon either a time constraint or personal preferences. For example a child viewer may not be allowed by a customer to watch violent movies on a particular channel.
In accordance with another aspect of the invention, a method for enabling fast access to at least one channel over an xDSL connection. At least one multicast enabled Digital Subscriber Line Access and Multiplexer (DSLAM) is employed to enable access to at least one channel on a core network. At least one subscriber is coupled to the core network by the xDSL connection. At a multicast enabled DSLAM, a request is received for at least one channel from a subscriber. The receiving DSLAM locally serves the xDSL connection for the subscriber. Information stored at the receiving DSLAM is employed to determine whether the subscriber is authorized to access the requested channel. If the subscriber is determined to be authorized to access the requested channel, the DSLAM is employed to provide access to the requested channel on the core network, establishes a single instance of each channel that is selectable by subscribers.
A further aspect of the invention is directed to providing at least one IGMP multicast protocol. Also, a set top box can be employed by the subscriber to provide an xDSL connection that is locally served by the receiving DSLAM. Additionally, the stored information can be included in a database at the receiving DSLAM.
A still further aspect of the invention is directed to providing each instance of each channel to the core network through a router coupled to another network. Also, a remote process may be employed to maintain the stored information. Additionally, a remote process can be employed to update the stored information.
Another aspect of the invention is directed to accessing the requested channel over the xDSL connection for the subscriber that is locally served by the receiving DSLAM. Also, the channel can include media for displaying, recording and playing with a set top box. Additionally, the media can include at least one of videos, graphics, pictures, text, talk shows, and television programs.
In accordance with yet another aspect of the invention, an apparatus, system and computer readable medium may be employed to practice substantially the same actions discussed above for the method.
REFERENCES:
patent: 6044403 (2000-03-01), Gerszberg et al.
patent: 6522668 (2003-02-01), Singleton et al.
patent: 2001/0019559 (2001-09-01), Handler et al.
patent: 2002/0016831 (2002-02-01), Peled et al.
Peled et al., Patent Application Publication No.: US2002/0016831A1, dated Feb. 7, 2002, Apparatus and Method for Locating of an Internet User, Sheets 1-5 and pp. 1-13.*
Handler et al, Patent Application Publication No.: US 2001/0019559A1, dated Sep. 6, 2001, System, Method, and Computer Program Product for End-User Self-Authentication, Sheets 1-15 and pp. 1-15.
Bathrick Greg
Camacho Don
Fencsik Gabor
Mehta Hemang
Branch John W.
Darby & Darby P.C.
Nokia Corporation
Olms Douglas
Wilson Robert W.
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