IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0470574
(2006-09-06)
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등록번호 |
US-7817608
(2010-11-08)
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발명자
/ 주소 |
- Rassool, Reza P.
- Morten, Glenn A.
- Baker, Brian A.
|
출원인 / 주소 |
- Widevine Technologies, Inc.
|
대리인 / 주소 |
Frommer Lawrence & Haug LLP
|
인용정보 |
피인용 횟수 :
50 인용 특허 :
87 |
초록
▼
An apparatus, system, and method is directed to transcoding broadcast content, such as in a DVB, ATSC, and MPEG based network, to secure content suitable for an Internet Protocol (IP) based network. In one embodiment, a single multifunctional convergence appliance is employed to enable such transcod
An apparatus, system, and method is directed to transcoding broadcast content, such as in a DVB, ATSC, and MPEG based network, to secure content suitable for an Internet Protocol (IP) based network. In one embodiment, a single multifunctional convergence appliance is employed to enable such transcoding actions as encryption, encoding, and/or encapsulation. For example, in one embodiment, an MPEG transport stream associated with the broadcast content may be transcoded to an IP-based transport stream. In addition, the transport stream may be decrypted, transrated to another rate, and re-encrypted using a different control word for re-encrypting, but a same service key to encrypt the different control word. The system is also enabled to transcode content formatted for the IP-based network to a content format suitable for the broadcast network.
대표청구항
▼
What is claimed as new and desired to be protected by Letters Patent of the United States is: 1. A network device for managing content over a network, comprising: a input/output interface that is configured to receive input signals including at least one of a IP signal, MPEG Transport over ASI, a D
What is claimed as new and desired to be protected by Letters Patent of the United States is: 1. A network device for managing content over a network, comprising: a input/output interface that is configured to receive input signals including at least one of a IP signal, MPEG Transport over ASI, a DVB signal, an SDI signal, an S-video signal, an AES/EBU signal, or an S/PDIF signal, and to provide an output signal including at least one of a DVB signal, an ATSC signal, an IP signal; a processor in communication with a display and the input/output interface; and a memory in communication with the processor and for use in storing data and machine instructions that causes the processor to perform a plurality of actions, including: determining an input signal selection; enabling a selection of a processing action on the input signal, including at least one of filtering of a program stream, rate shaping, encoding, encapsulation, or encryption of the input signal, wherein rate shaping further comprises transcoding of a bit rate of the input signal by decrypting the input signal, employing a service key inside of an EMM to decrypt an ECM to access a first Control Word key, varying a bit rate on the decrypted signal, and re-encrypting the bit rated signal using a second Control Word key, and further encrypting the second Control Word key using the same service key; determining an output signal format selection; and converting the processed input signal into the determined output signal selection. 2. The network device of claim 1, wherein the input signals, and the output signals are obtained through industry standard connections. 3. The network device of claim 1, wherein the encoding employs a multimedia CODEC that employs at least one of video or an audio CODEC, including at least one of an MPEG CODEC, H.264 CODEC, a WMV CODEC, a DV CODEC, or an MPGA, MPG2A, MP3, or MP4A CODEC. 4. The network device of claim 1, wherein the display enables a user to provide a selection of the processing action. 5. The network device of claim 1, wherein the processing further comprises receiving a baseband video or audio signal; digitizing, encoding, and compressing the signal into an elementary stream. 6. The network device of claim 5, wherein the compressed audio and video signals are synchronized and multiplexed into a program stream using the selected process. 7. The network device of claim 5, wherein the processing action is further configured to recompress the elementary stream into another elementary stream with a different bit rate. 8. A system useable in securely transitioning television signals to IP signals, comprising: a device configured to provide a television signal; and a secure transitioner that is operative to perform actions, comprising: receiving the television signal; determining a format of the received television signal; enabling a selection of a processing action on the television signal, including at least one of filtering out a program stream, rate shaping, encoding, encapsulation, or encryption of the television signal, wherein the television signal is a digital TV (DTV) signal, and the processing comprises descrambling the DTV signal using a key, and de-encapsulating the descrambled DTV signal to expose an MPEG transport stream; determining an output signal format; and converting the processed television signal into the determined output signal, for use of an IP based network. 9. The system of claim 8, wherein the processing further comprises multiplexing MPEG program streams into MPEG transport streams. 10. The system of claim 8, wherein rate shaping further comprises varying a bit rate on the television signal. 11. The system of claim 8, wherein the secure transitioner that is operative to perform actions, further comprising: receiving baseband audio and video input signals; digitizing the received baseband audio and video signals; encrypting the digitized signals; and providing the encrypted signals in SDTI format useable with a digital video tape device. 12. An apparatus for securely transitioning television input to an IP based network, comprising: a input/output interface that is configured to receive input signals including at least one of a IP signal, MPEG Transport over ASI, a DVB signal, an SDI signal, an S-video signal, an AES/EBU signal, or an S/PDIF signal, and to provide an output signal including at least one of a DVB signal, an ATSC signal, an IP signal; means for determining an input signal selection; means for selecting a processing action, wherein the processing actions comprise at least one of filtering the input signal, rate shaping the input signal, encapsulating the input signal, or encrypting the input signal; means of securely performing the selected processing action, wherein the processing action is performed upon the received input signal, wherein the processing comprises receiving a baseband video or audio signal, digitizing, encoding, and compressing the signal into an elementary stream, and wherein the processing action is configured to recompress the elementary stream into another elementary stream with a different bit rate; and means for converting the received input signal into a selected output signal useable over the IP based network. 13. A system useable in securely transitioning television signals to IP signals, comprising: a device configured to provide a television signal; and a secure transitioner that is operative to perform actions, comprising: receiving the television signal; determining a format of the received television signal; enabling a selection of a processing action on the television signal, including at least one of filtering out a program stream, rate shaping, encoding, encapsulation, or encryption of the television signal, wherein rate shaping further comprises varying a bit rate on the television signal; determining an output signal format; and converting the processed television signal into the determined output signal, for use of an IP based network.
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