1
Simon Bewick: Digital video broadcasting. LSI Logic Corporation, June 6, 2000: US06072873 (106 worldwide citation)

In order to implement the Digital Video Broadcasting descrambling algorithm in the context of MPEG compressed data streams containing interleaved sections of scrambled and unscrambled data, at a data rate of 60 MBits/sec with a clock of 2.7 MHz, a stream cipher has an input to receive scrambled vide ...


2
Christopher M Giles, Simon Bewick, Kalvin E Williams: Debug port disable mechanism. LSI Logic Corporation, Christopher P Maiorana PC, October 3, 2006: US07117352 (39 worldwide citation)

A circuit generally comprising a debug port and a processor is disclosed. The processor may be configured to (i) bootstrap to a first memory, (ii) disable said debug port while in a first mode of at least three modes, (iii) authenticate said debug port while in a second mode of said modes and (iv) d ...


3
Christopher M Giles, Simon Bewick, Kalvin E Williams: Use of EEPROM for storage of security objects in secure systems. LSI Logic Corporation, Christopher P Maiorana PC, November 22, 2005: US06968420 (31 worldwide citation)

A circuit generally comprising a first memory, a second memory and a processor is disclosed. The first memory may store an instruction to read an updated security value of at least three security values. The second memory may store (i) the updated security value and (ii) information related to secur ...


4
Christopher M Giles, Simon Bewick, Kalvin E Williams: Scan and boundary scan disable mechanism on secure device. LSI Corporation, Christopher P Maiorana PC, June 5, 2007: US07228440 (12 worldwide citation)

A circuit generally comprising a logic module and a security module is disclosed. The logic module may be configured to set a plurality of values to a plurality of predetermined values respectively while in a scan mode. The security module may be configured to (i) disable a scan capability of the va ...


5
Christopher M Giles, Simon Bewick, Kalvin E Williams: Security supervisor governing allowed transactions on a system bus. LSI Corporation, Christopher P Maiorana PC, August 7, 2007: US07254716 (10 worldwide citation)

A circuit generally comprising a plurality of master modules and a supervisor module is disclosed. The supervisor module may be configured to (i) detect a target address and a particular master module of the master modules initiating a transaction on a bus, (ii) identify a predetermined authorizatio ...


6
Christopher M Giles, Simon Bewick, Kalvin E Williams: Precise exit logic for removal of security overlay of instruction space. LSI Corporation, Christopher P Maiorana PC, August 7, 2007: US07254720 (5 worldwide citation)

A circuit generally comprising a first memory, a processor and a logic block is disclosed. The first memory may store (i) a write instruction to store a non-highest security value of at least three security values in a register and (ii) a jump instruction to a second memory. The processor may have a ...


7
Simon Bewick: Digital video broadcasting. LSI Logic Corporation, June 18, 2002: US06408076 (5 worldwide citation)

In order to descramble sections of scrambled data interleaved with sections of unscrambled data in a transport stream of broadcast video data, while leaving the sections with the original timing relationship in the transport stream, a common data flow path (