Steve M Rodgers

US Patent:

7434065, Oct 7, 2008

Filed:

Nov 6, 2003

Appl. No.:

10/702326

Inventors:

Steve Rodgers - San Diego CA, US
Sherman (Xuemin) Chen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 9/32

US Classification:

713189, 726 26

Abstract:

One or more methods and systems of authenticating or verifying a set-top-box chip in a set-top-box are presented. In one embodiment, a set-top-box incorporates a set-top-box chip used to decode or decrypt media content provided by a cable television operator or carrier. The set-top-box chip incorporates a decryption circuitry, a compare circuitry, a hash function circuitry, a key generation circuitry, a back channel return circuitry, a linear feedback shift register, a timer reset circuitry, a modify enable status circuitry, a one time programmable memory, and a non-volatile memory. The cable TV carrier validates a set-top-box chip used in a set-top-box by way of a verification sequence that requires a successful verification by the set-top-box chip.

US Patent:

7792144, Sep 7, 2010

Filed:

Nov 14, 2005

Appl. No.:

11/273282

Inventors:

Steve Walter Rodgers - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04J 3/22
H04J 3/24
H04N 11/02

US Classification:

370466, 370469, 370474, 386 33

Abstract:

Herein described is a system and method for improving the performance in which data packets are processed in a set-top-box. The system determines and stores one or more values into a memory. The one or more values in memory are subsequently utilized when a firmware is executed. These values are used to efficiently index locations within one or more data packets, such that processing performance is improved. Based on the types of packets received by the set-top-box, the hardware assistance provided by the system may be gradually increased or attenuated to optimize the performance in which the data packets are processed. The method involves determining the one or more values, storing the one or more values in a memory, and using said one or more values to effectively index one or more data fields in the one or more data packets.

US Patent:

7797551, Sep 14, 2010

Filed:

Oct 6, 2008

Appl. No.:

12/245873

Inventors:

Steve Rodgers - San Diego CA, US
Shermin (Xuemin) Chen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 12/14

US Classification:

713189, 726 26

Abstract:

One or more methods and systems of authenticating or verifying a set-top-box chip in a set-top-box are presented. In one embodiment, a set-top-box incorporates a set-top-box chip used to decode or decrypt media content provided by a cable television operator or carrier. The set-top-box chip incorporates a decryption circuitry, a compare circuitry, a hash function circuitry, a key generation circuitry, a back channel return circuitry, a linear feedback shift register, a timer reset circuitry, a modify enable status circuitry, a one time programmable memory, and a non-volatile memory. The cable TV carrier validates a set-top-box chip used in a set-top-box by way of a verification sequence that requires a successful verification by the set-top-box chip.

US Patent:

7890769, Feb 15, 2011

Filed:

Aug 4, 2004

Appl. No.:

10/911337

Inventors:

Sherman (Xuemin) Chen - San Diego CA, US
Steve W. Rodgers - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 12/14

US Classification:

713190

Abstract:

Systems and methods that support secure code downloading are provided. In one embodiment, a method that securely downloads code may include, for example, one or more of the following: receiving a command in a security processor; loading an encryption or decryption key based on the received command; configuring the security processor with a selected scrambling type and a selected signature type based on the received command; and processing incoming code using the loaded encryption or decryption key and the configured security processor.

US Patent:

7937593, May 3, 2011

Filed:

Aug 6, 2004

Appl. No.:

10/913197

Inventors:

Sherman (Xuemin) Chen - San Diego CA, US
Steve W. Rodgers - San Diego CA, US
Iue-Shuenn I. Chen - San Diego CA, US
Francis Chi-Wai Cheung - Del Mar CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 12/14
H04L 9/32

US Classification:

713189, 713161, 713176, 705 67, 707698

Abstract:

Systems and methods that storage device content authentication are provided. A system that verfies storage device content received from a storage device may comprise, for exmple, a security processor coupled to the storage device. The security processor may be adapted to receive a partitioned storage device region from the storage device. The partitioned storage device region may comprise, for example, regional content and first hashed regional content. The security processor may generate, for example, second hashed regional content by performing a hashing function on the regional content received by the security processor. The security processor may compare, for example, the first hashed regional content to the second hashed regional content. The security processor may varify the regional content received by the security processor if the first hashed regional content is the same as the second hashed regional content.

US Patent:

8081656, Dec 20, 2011

Filed:

Sep 2, 2010

Appl. No.:

12/874940

Inventors:

Steve Walter Rodgers - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04J 3/16
H04J 3/24
H04N 7/16

US Classification:

370466, 370469, 370474, 725139

Abstract:

Herein described is a system and method for improving the performance in which data packets are processed in a set-top-box. The system determines and stores one or more values into a memory. The one or more values in memory are subsequently utilized when a firmware is executed. These values are used to efficiently index locations within one or more data packets, such that processing performance is improved. Based on the types of packets received by the set-top-box, the hardware assistance provided by the system may be gradually increased or attenuated to optimize the performance in which the data packets are processed. The method involves determining the one or more values, storing the one or more values in a memory, and using said one or more values to effectively index one or more data fields in the one or more data packets.

US Patent:

8526303, Sep 3, 2013

Filed:

Jan 31, 2006

Appl. No.:

11/344329

Inventors:

Steve Walter Rodgers - San Diego CA, US
Rajesh Mamidwar - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04J 1/16
H04J 3/14
G06F 3/00
G06F 5/00
H04N 7/173

US Classification:

370229, 370235, 710 52, 710 53, 710 54, 710 55, 710 56

Abstract:

Herein described are at least a system and a method for regulating data flow in a data pipeline that may be used in a video processing system. The system comprises a processor, one or more data buffers, and one or more processing stations. The one or more data buffers may be used to buffer corresponding processing stations. Each of the one or more processing stations may comprise a switching circuitry that is used to inhibit data transmission when a hold signal is received from the processor. The processor may send the signal in response to a feedback control signal generated by the one or more processing stations. The method may comprise determining if the processing time of a processing station exceeds a specified time. The method further comprises generating a feedback control signal to a processor if the specified time is exceeded.

US Patent:

8565427, Oct 22, 2013

Filed:

Mar 29, 2011

Appl. No.:

13/074083

Inventors:

Steve (Stephane) Rodgers - San Diego CA, US
Sherman (Xuemin) Chen - Rancho Santa Fe CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 29/00

US Classification:

380203, 380 47, 380227, 370386

Abstract:

A Set Top Box (STB) or client computer includes a communication interface operable to receive digital messages and digital content, memory operable, and processing circuitry coupled to the communication interface and to the memory. The STB is operable to receive a digital message, extract a key portion from the digital message, decrypt the key portion, descramble the digital content using the decrypted key portion, extract a rights portion from the digital message, decrypt the rights portion, determine protected and unprotected digital content based upon the rights portion, write the unprotected digital content to an unprotected portion of the memory, and write the protected digital content to a protected portion of the memory. The decrypted key portion may include a plurality of Program IDs (PIDs) and the decrypted rights portion may include protection data for each PID. A security processor may prevent a central processing unit from accessing the protected portion of the memory.