摘要:
A first wireless device includes a coding module that encodes packets and adds dummy data to a second packet. A first receiver (i) in response to transmission of a first packet, receives a first acknowledgement (ACK) signal, and (ii) in response to transmission of the second packet, receives a second ACK signal. Reception of the first ACK signal is delayed a first delay period from an end of the transmission of the first packet. Reception of the second ACK signal is delayed a second delay period from an end of the transmission of the dummy data. The coding module, prior to the transmission of the second packet and based on time to process the first and second packets at a second wireless device, determines the amount of dummy data to add to the second packet such that the first delay period is a same length as the second delay period.
摘要:
A method includes generating a first subset of codeword symbols by processing, during each of a plurality of iterations, a first input and a second input. The first input is a function of (i) an output, during a respective one of the plurality of iterations, of a last processing stage of a first plurality of processing stages and (ii) a symbol, of a first subset of original symbols, corresponding to the respective iteration. The second input is a function of (i) an output, during the respective iteration, of a last processing stage of the second plurality of processing stages and (ii) a symbol, of a second subset of original symbols, corresponding to the respective iteration. The method also includes generating a second subset of codeword symbols by processing, during each of the plurality of iterations, the first input and the second input.
摘要:
An integrated circuit includes a first memory, a second memory, a processor, and a descrambler. The first memory is configured to store a key. The first memory is a one-time-programmable memory. The processor is configured to: determine whether the first memory has been programmed; and in response to the first memory not having been programmed, (i) load firmware from a third memory into the second memory, and (ii) execute the firmware. The third memory is separate from the integrated circuit. The processor is also configured to, in response to the first memory having been programmed, load the firmware from the third memory into the second memory. The descrambler is configured to, in response to the first memory having been programmed, descramble the firmware based on the key.
摘要:
A method of operating a system on chip. The system on chip includes a controller. The method includes: receiving, at the system on chip and in a storage drive, encrypted content and an encrypted content key; storing the encrypted content and the encrypted content key in a storage device; and transmitting the encrypted content key from the controller to a first decryption module. The method further includes: decrypting the encrypted content key to generate a content key based on an identification of the system on chip; transmitting the encrypted content from the controller to a second decryption module; and decrypting the encrypted content based on the content key to generate content.
摘要:
A circuit includes a multiplexer, a first measurement device, and a decision device. The multiplexer is configured to receive signals from antennas, where the signals include (i) a first signal received from a first antenna of the antennas, and (ii) a second signal received from a second antenna of the antennas. The first measurement device is configured to (i) determine a first peak-to-average ratio based on the first signal, and (ii) determine a second peak-to-average ratio based on the second signal. The decision device is configured to, based on the first peak-to-average ratio and the second peak-to-average ratio, signal the multiplexer to select one of the antennas.
摘要:
A network device includes a receiver that receives a first signal on a channel. A demodulator outputs demodulated data based on the first signal. A gain device, based on a change in a gain of the first signal, generates a second signal. A validating device determines whether the first signal is a valid direct sequence spread spectrum signal and based on whether the first signal is a valid direct sequence spread spectrum signal, generates a third signal. An assessment device: determines whether the demodulated data includes a predetermined header, where the predetermined header includes a predetermined sequence; determines whether the channel is busy based on the second signal, the third signal, and whether the demodulated data includes the predetermined header with the predetermined sequence; and generates a channel signal indicating whether the channel is busy. A transmitter, based on the channel signal, transmits a fourth signal on the channel.
摘要:
A system-on-a-chip including a first one-time-programmable memory, a second memory, a test interface, an input circuit, and a processor. The input circuit is configured to receive data transmitted from a third memory to the system-on-a-chip. The processor is configured to, while booting up the system-on-a-chip, determine whether a first one-time-programmable memory has been previously programmed. The processor is also configured to (i) in response to the first one-time-programmable memory not having been previously programmed, enable the test interface for debugging of the system-on-a-chip, (ii) based on the first one-time-programmable memory having been previously programmed, disable the test interface, and (iii) subsequent to one of the enabling of the test interface and the disabling of the test interface, load the data from the third memory into the second memory.