Abstract: Secure content transfer systems and methods to operate the same are disclosed. Disclosed example systems include a client device for use at a physical location and a media server for use at the physical location. The example media server includes a security device to determine a first encryption secret based on a first encryption key and to determine a second encryption secret based on a second encryption key. The media server also includes a decrypter to decrypt received encrypted content for requested content based on the first encryption secret and an encrypter to re-encrypt the decrypted content data for the requested content based on the second encryption secret. In addition, the media server includes an interface to send the re-encrypted content data to the client device, wherein the client device is to decrypt the re-encrypted content data based on the second encryption secret to access the requested content.

Abstract: Secure content transfer systems and methods to operate the same are disclosed. Disclosed example systems include a client device for use at a physical location and a media server for use at the physical location. The example media server includes a security device to determine a first encryption secret based on a first encryption key and to determine a second encryption secret based on a second encryption key. The media server also includes a decrypter to decrypt received encrypted content for requested content based on the first encryption secret and an encrypter to re-encrypt the decrypted content data for the requested content based on the second encryption secret. In addition, the media server includes an interface to send the re-encrypted content data to the client device, wherein the client device is to decrypt the re-encrypted content data based on the second encryption secret to access the requested content.

Abstract: Methods and apparatus to provide content on demand in content broadcast systems are disclosed. An example method comprises receiving a first portion of a program via broadcast signal and receiving a second portion of the program via an Internet protocol (IP) based signal. The example method may further comprise combining the first and the second portions and at least one of store the combined first and second portions in a file or playback the combined first and second portions.

Abstract: Secure content transfer systems and methods to operate the same are disclosed. Disclosed example systems include a client device for use at a physical location and a media server for use at the physical location. The example media server includes a security device to determine a first encryption secret based on a first encryption key and to determine a second encryption secret based on a second encryption key. The media server also includes a decrypter to decrypt received encrypted content for requested content based on the first encryption secret and an encrypter to re-encrypt the decrypted content data for the requested content based on the second encryption secret. In addition, the media server includes an interface to send the re-encrypted content data to the client device, wherein the client device is to decrypt the re-encrypted content data based on the second encryption secret to access the requested content.

Abstract: Secure content transfer systems and methods to operate the same are disclosed. An example system includes a content server to encrypt content according to an encryption key, and to transfer the encrypted content, the encryption key and a license to a client that supports a digital rights management technology. The example system further includes a broadcast system headend to determine the encryption key, wherein the broadcast system headend is physically separate from the content server, and a digital rights management license server to provide the license.

Abstract: Methods and apparatus to provide content on demand in content broadcast systems are disclosed. An example method comprises receiving a first portion of a program via broadcast signal and receiving a second portion of the program via an Internet protocol (IP) based signal. The example method may further comprise combining the first and the second portions and at least one of store the combined first and second portions in a file or playback the combined first and second portions.

Abstract: Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems are disclosed. An example method includes generating a broadcast signal, receiving an authorization request to download a program from a receiver station, determining an authorization for the download and sending the authorization to a point-to-point content delivery server.

Abstract: Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems are disclosed. An example method includes generating a broadcast signal, receiving an authorization request to download a program from a receiver station, determining an authorization for the download and sending the authorization to a point-to-point content delivery server.

Abstract: Secure content transfer systems and methods to operate the same are disclosed. An example system includes a content server to encrypt content according to an encryption key, and to transfer the encrypted content, the encryption key and a license to a client that supports a digital rights management technology. The example system further includes a broadcast system headend to determine the encryption key, wherein the broadcast system headend is physically separate from the content server, and a digital rights management license server to provide the license.

Abstract: Methods and apparatus to provide content on demand in content broadcast systems are disclosed. An example method comprises receiving a first portion of a program via broadcast signal and receiving a second portion of the program via an Internet protocol (IP) based signal. The example method may further comprise combining the first and the second portions and at least one of store the combined first and second portions in a file or playback the combined first and second portions.

Abstract: Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems are disclosed. An example method includes generating a broadcast signal, receiving an authorization request to download a program from a receiver station, determining an authorization for the download and sending the authorization to a point-to-point content delivery server.

Abstract: A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first (CW) encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key, and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material.

Abstract: Secure content transfer systems and methods to operate the same are disclosed. An example system includes a content server to encrypt content according to an encryption key, and to transfer the encrypted content, the encryption key and a license to a client that supports a digital rights management technology. The example system further includes a broadcast system headend to determine the encryption key, wherein the broadcast system headend is physically separate from the content server, and a digital rights management license server to provide the license.

Abstract: A system and method for storing and retrieving program material for subsequent replay is disclosed. The method includes accepting a receiver ID associated with a receiver key stored in a memory of the receiver, determining a pairing key for encrypting communications between the conditional access module and the receiver, encrypting the pairing key with the receiver key, and transmitting a message comprising the encrypted pairing key to the receiver. The apparatus comprises a receiver for receiving a data stream transmitting a media program encrypted according to a media encryption key and an encrypted media encryption key and a conditional access module, communicatively coupleable with the receiver.

Abstract: Essential data elements, particularly entitlement control messages (ECMs), are inserted in a manner that reduces the overhead bit rate without effecting overall tuning time at the customer receiver or security in satellite, cable or other programming networks. ECMs are inserted into the transport stream by detecting random access points (RAPS) in the encoded programming and inserting the ECM packets in a window just ahead of the RAP.

Abstract: A communication system 100 includes a group of user devices 110, a first satellite 106 and a content delivery network 120 in communication with the group of user devices 110. The content delivery network 120 communicates encryption-decryption information to the plurality of user devices using the first satellite 106 and encrypts the content in response to the encryption-decryption information. The content delivery network 120 communicates the content to the plurality of user devices separately from the encryption-decryption information. The plurality of user devices 110 decrypts the content in response to the encryption-decryption information. A control word packet may also be used to convey security information to the user devices so that decryption may be performed.

Abstract: A communication system includes a head end. The head end communicates with a system gateway. A plurality of user devices is coupled to the gateway. The gateway receives the plurality of first encrypted signals, decrypts the plurality of first encrypted signals to form unencrypted signals and encrypts the unencrypted signals with a second encryption to form a plurality of second encrypted signals and communicates the second encrypted signals to the plurality of user devices. The signals may also be super-encrypted signals. That is, rather than un-encrypting at the gateway, the first encrypted signals may be again encrypted.

Abstract: A system and method for providing conditional access authorizations in a satellite-receiving system includes generating a conditional access authorization signal and an expiration signal at a head-end 20, receiving the conditional access authorization signal at a fixed satellite receiver 54 or at a mobile satellite receiver 28. When the mobile satellite receiver operates in a predetermined time window before the expiration time, which is determined from the expiration signal, a warning 434 on a screen display 432 is generated.

Abstract: A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first (CW) encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key, and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material.

Abstract: A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key; and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the second encryption key is derived from metadata describing replay rights. In a further embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material.