| SYPHERMEDIA INTERNATIONAL, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110206202 | METHOD AND APPARATUS FOR SUPPORTING BROADCAST EFFICIENCY AND SECURITY ENHANCEMENTS - A method and apparatus for providing conditional access to media programs is described. An exemplary method comprising the steps of transmitting media information encrypted according to a control word (CW) to a receiver station, transmitting entitlement management information (EMI) to the receiver station, the EMI comprising a service bitmap, and transmitting entitlement control information (ECI) to the receiver station, the entitlement control information including the control word (CW) encrypted according to a key (K) and an index to an element of the service bitmap, wherein the control word (CW) is decrypted by the receiver stations according to a value of the indexed element of the service bitmap. | 08-25-2011 |
| 20100301903 | BUILDING BLOCK FOR A SECURE CMOS LOGIC CELL LIBRARY - A logical building block and method of using the building block to design a logic cell library for CMOS (Complementary Metal Oxide Silicon) ASICs (Application Specific Integrated Circuits) is disclosed. Different logic gates, built with the same building block as described in this invention, will have the same schematics of transistor connection and also the same physical layout so that they appear to be physically identical under optical or electron microscopy. An ASIC designed from a library of such logic cells is strongly resistant to a reverse engineering attempt. | 12-02-2010 |
| 20100218158 | METHOD AND APPARATUS FOR CAMOUFLAGING A STANDARD CELL BASED INTEGRATED CIRCUIT - A method and apparatus for camouflaging an application specific integrated circuit (ASIC), wherein the ASIC comprises a plurality of interconnected functional logic is disclosed. The method adds functionally inert elements to the logical description or provides alternative definitions of standard logical cells to make it difficult for reverse engineering programs to be used to discover the circuit's function. | 08-26-2010 |
| 20100037254 | SYSTEM AND METHOD FOR MEDIA TRANSCODING AND PRESENTATION - A method and apparatus for presenting a media data stream complying with a broadcast encryption standard is disclosed. A dongle is removably coupleable to a rendering device, with the dongle performing transcoding so as to allow presentation of the media in a secure manner without modification of the rendering device software or hardware. | 02-11-2010 |
