Abstract: A cable modem for connecting Customer Premises Equipment (CPE) includes a Media Access Control (MAC) layer controller, a Logical Link Control (LLC) bridge (113) interacting with the MAC layer controller, an IP stack processing IP frames and interacting with the LLC bridge (113), CPE interfaces (115, 116 and 117) and a multiplexer (114) of Customer Premises Equipment (CPE) interfaces linked to the CPE interfaces and to the LLC bridge (113). The CPE interfaces (115, 116 and 117) communicate with the multiplexer (114) through appropriate functions. The multiplexer (114) has functionality allowing for servicing the flow of frames between the cable network and the interfaces linked to it, directing the received frames to appropriate interfaces.

Abstract: In a system for controlling conditional access systems in a digital television decoder (101) with a signal receiving block (102) receiving a plurality of streams (TS1, TS2), a signal processing block (131) having a plurality of decoder descramblers (133, 135) and a conditional access block (141) with at least one conditional access system (143, 145, 147) provided with a client (142, 144, 146) supporting communication via a client interface (152), the conditional access block (141) additionally comprises a client manager (151) handling communication with conditional access systems (143, 145, 147) via clients (142, 144, 146) using the client interface (152) and controlling descrambling of the streams by granting access to decoder descramblers (133, 135) to selected conditional access systems (143, 145, 147). The client manager is provided with a plurality of virtual descrambler sets, where each virtual descrambler set is assigned individually to each decoder descrambler.

Abstract: A system for controlling smart card slots (121, 122, 123) of a device comprising smart card slots (121, 122, 123) providing access to smart card (111, 112, 113) resources via slot interfaces (103) and embedded systems (143, 145, 147, 151) requesting access to smart card resources, each embedded system (143, 145, 147, 151) provided with a client (142, 144, 146, 152), each client supporting communication via a client interface (153).

Abstract: In a system for controlling conditional access systems (143, 145, 147, 149) in a digital television decoder comprising a signal processing block with a decoder descrambler and a conditional access block with at least one conditional access system, each conditional access system (143, 145, 147, 149) is provided with a client (142, 144, 146, 148) supporting communication via a client interface (152). Furthermore, the conditional access block (141) is provided with a conditional access client manager (151), which handles communication with conditional access systems (143, 145, 147, 149) via the clients (142, 144, 146, 148) using a client interface (152) and controls descrambling of signal in the decoder by selecting a conditional access system (143, 145, 147, 149) responsible for descrambling a currently received signal and configuring the decoder descrambler (132) depending on the selected conditional access system (143, 145, 147, 149).

Abstract: A cable modem for connecting Customer Premises Equipment (CPE) includes a Media Access Control (MAC) layer controller, a Logical Link Control (LLC) bridge (113) interacting with the MAC layer controller, an IP stack processing IP frames and interacting with the LLC bridge (113), CPE interfaces (115, 116 and 117) and a multiplexer (114) of Customer Premises Equipment (CPE) interfaces linked to the CPE interfaces and to the LLC bridge (113). The CPE interfaces (115, 116 and 117) communicate with the multiplexer (114) through appropriate functions. The multiplexer (114) has functionality allowing for servicing the flow of frames between the cable network and the interfaces linked to it, directing the received frames to appropriate interfaces.