Thursdays the PTO publishes new pending patent applications. Both of today's Spotlight Applications concern aspects of conditional access systems typically used in cable television distribution and IPTV systems. Assigned to General Instrument, the first application discloses techniques for use in a downloadable conditional access system. Assigned to Time Warner Cable, the second application discloses techniques for provisioning in a download-enabled system.
20140219446, "Method and apparatus for use in a downloadable conditional access system," assigned to General Instrument.
In a downloadable conditional access system (DCAS), preferably all DCAS-specific code is implemented in a configurable secure (CS) processor that is in communication with the host processor. Preferably, no DCAS-specific code is executed in the host processor. The host processor delivers commands to the CS processor, which the CS processor performs to configure itself in accordance with the particular DCAS encryption scheme used by the DCAS. Once configured, the CS processor executes a DCAS software module that has been downloaded to the CS processor, which looks for the corresponding EMMs and ECMs, processes them to obtain the CW, and then uses the CW to decrypt the content stream.
20140189353, "Apparatus and methods for provisioning in a download-enabled system," assigned to Time Warner Cable.
Apparatus and methods for provisioning of customer premise equipment (CPE) equipped with a secure microprocessor to receive e.g., digital video content by entering unique identification of the CPE at one or more servers located at the headend or other location of a content-based network. In one embodiment, the CPE comprises a download-enabled (e.g., DCAS) host with embedded cable modem and embedded set-top box functionality, and the provisioning includes enabling DOCSIS functionality of the CPE, assigning an IP address to the CPE and providing the CPE with a client image for the conditional access system chosen by the network operator. In one variant, the network operator can deactivate a provisioned device while connected to the network, as well when disconnected from the network. The network operator can also add, delete or replace conditional access client image in a provisioned device.