Broadcom Corporation

Qualcomm Incorporated

Jeffrey Douglas Carr

Mark Leonard Buer

Dennis Michael Feenaghty

David Noel Collins

Anushruti Bhattacharya

Gaurav Verma

Ryan Reddy Wendlandt

Prachi Deshpande

Gaurav Singhania

Karthik Moncombu Ramakrishnan

Thuji Simon Lin

Methods and systems for automated testing of extremely-high frequency devices are disclosed. A device under test (DUT) is set in a simultaneous transmit and receive mode. The DUT receives a lower frequency radio frequency (RF) signal from a test unit and up-converts the lower frequency RF signal to a higher frequency RF signal. The DUT transmits the higher frequency RF signal using a first antenna, and receives the higher frequency RF signal using a second antenna. The DUT down-converts the received higher frequency RF signal to a received test RF signal and provides the received test RF signal to the test unit for comparing measurements derived from the received test signal to a design specification for the DUT.

Self-radiated loopback test procedure for millimeter wave antennas

Systems and methods that process and protect content are provided. In one example, a system may include, for example, a first device coupled to a second device. The first device may include, for example, an integrated circuit that may include a content processing system and a security system. The security system may include, for example, a digital rights manager. The first device and the second device may be part of a network. The network receives content and control information via the first device. The content processing system processes incoming content based upon at least the control information. The integrated circuit protects the content before placing the content on the network.

System and method for processing and protecting content

Systems and methods that securely handle control information are provided. In one example, a system may include an application specific integrated circuit (ASIC). The ASIC may include, for example, a content processing block and a control processing block. The content processing block may be coupled to the control processing block. The content received by the ASIC may be associated with the control information received by the ASIC. The control processing block may be adapted to validate the control information received by the ASIC. The content processing block may be adapted to process the content received by the ASIC in accordance with the validated control information.

System and method for securely handling control information

A system and method for concealing input parameters that are being loaded into a device. In one embodiment, the system provides a transformed interface, in which a device into which the parameters are loaded contains a series of inverse transformation keys. The parameters to be concealed are transformed using a particular key, along with a transformed index value to indicate the particular key that must be used to inversely transform the parameter.

System and method for the concealment of device input parameters

Systems and methods that may securely control access to device functions are disclosed. A request is received to enable a feature of the device. In one embodiment, the device may be a set top box, for example. The device determines whether the feature is disabled, whether the feature can be enabled with authorization and whether a requester is authorized to enable the feature of the device. If the feature is disabled, if the feature can be enabled with authorization and if the requester is authorized to enable the feature of the device, then the feature of the device is enabled.

System and method for securely controlling access to device functions

Systems and methods that securely buffer content are provided. In one embodiment, a system may include, for example, a processor and a memory. The memory may be coupled to the processor. Before content leaves the processor for the memory, the processor may secure the content. After the secured content enters the processor from the memory, the processor may recover the content from the secured content.

System and method for securely buffering content

Systems and methods that may program a non-volatile memory for use in configuring features of a device, such as a set top box, for example, are disclosed. One method may include the steps of beginning a programming cycle; programming mode control bits of the non-volatile memory that correspond to configurations of features of the device; if an interruption occurs during the programming cycle, then rendering the non-volatile memory invalid; and if no interruption occurs during the programming cycle, then rendering the non-volatile memory operational.

System and method for programming non-volatile memory

Systems and methods that may configure features or functions of a device, such as a set top box, for example, using a chip are provided. The chip may include a processor and a memory array. The memory array may include a non-volatile memory and may be in communications with the processor. The non-volatile memory may include a set of mode control bits, each mode control bit being one-time programmable. The device features may be securely programmed via the set of mode control bits of the non-volatile memory that may be programmed during a programming cycle and may not be modified further after the completion of the programming cycle.

System and method for configuring device features via programmable memory

Systems and methods that protect transport stream content are disclosed. The system may include a first module and a second module, the first module having a common interface. The second module is coupled to the first module via the common interface. In one embodiment, the first module is a set top box, and the second module is a conditional access card. In one example, the first module demodulates an incoming transport stream, copy protection encrypts the demodulated transport stream and passes the copy protection encrypted transport stream to the second module via the common interface. The second module copy protection decrypts the transport stream received from the first module, conditional access decrypts at least some of packets of the transport stream that were conditional access encrypted, copy protection encrypts the transport stream and passes the copy protection encrypted transport stream to the first module via the common interface.

System and method for protecting transport stream content

A system and method for concealing input parameters that are being loaded into a device. In one embodiment, the system provides a transformed interface, in which a device inverse transformation keys. The parameters to be concealed are transformed using a particular key, along with a transformed index value to indicate the particular key that must be used to inversely transform parameter.

A system for processing wireless data packets allows for processing packets allows consolidation of security processing. Security processing is performed in accordance with multiple security policies. This processing is done in a single front end processing block. Different security processes can be performed in parallel. Processing overhead is reduced by eliminating the need to redundantly check packet characteristics to assess the different security requirements imposed by security policies. Further, the present invention also substantially reduces the CPU cycles required to transport data back and forth from memory to a cryptographic coprocessor.

System for processing multiple wireless communications security policies

A method for processing wireless data packets allows for processing packets allows consolidation of security processing. Security processing is performed in accordance with multiple security policies. This processing is done in a single front end processing block. Different security processes can be performed in parallel. Processing overhead is reduced by eliminating the need to redundantly check packet characteristics to assess the different security requirements imposed by security policies. Further, the present invention also substantially reduces the CPU cycles required to transport data back and forth from memory to a cryptographic coprocessor.

Growing community of inventors

San Diego, CA, United States of America

Jeffrey Douglas Carr