摘要:
A wordline decoder scheme for a memory device is generally described. In one example, a memory device includes a distributed logical NOR gate to decode addressing signals to generate wordline selection signals within a block of memory wherein the distributed logical NOR gate comprises a wordline decoder output driver, the wordline decoder output driver comprising two transistors coupled with a wordline signal.
摘要:
The present invention provides a method of characterizing a frequency response of a transmission channel between a transceiver and a subscriber unit. The method includes once per predetermined interval of time, the transceiver transmitting a signal including multiple carriers, a plurality of the carriers including training symbols, a plurality of the carriers including information symbols. The subscriber unit generates frequency response estimates at the frequencies of the carriers including training symbols, each interval of time. The frequency response estimates are converted into a time domain response generating an impulse response once per interval of time. The impulse responses are filtered over a plurality of intervals of time. A channel profile is determined from the filtered impulse responses. The channel profile is converted to the frequency domain generating a channel interpolator. The characterized frequency response is generated from the channel interpolator and the frequency response estimates. The filtering can include averaging the impulse responses over a plurality of intervals of time, accumulating the impulse responses over a plurality of intervals of time, or weighted averaging of the impulse responses over a plurality of intervals of time. The weighted averaging can be dependent upon a phase error between the impulse responses, and/or an amplitude error between the impulse responses.
摘要:
Briefly, in accordance with one or more embodiments, an offset compensated comparator is capable of being utilized for higher speed, lower voltage use. The comparator comprises a cross-coupled latch comprising n type devices and p type devices. The threshold mismatch between n type devices is captured on capacitors coupled to the gates of the n type devices to capture the mismatch between the devices. After the threshold mismatch is captured, the comparator can be used as a typical cross coupled latch.
摘要:
A method of sensing data in a multi-level cell memory using two or less sense operations and adjusting column load is provided. A sensing circuit implementing a serial-parallel sense scheme is also provided. The column loads are re-configurable based on the sensing circuit and the serial-parallel sense scheme.
摘要:
A method for IP address allocation is presented. In one embodiment, the method includes receiving DHCP (Dynamic Host Configuration Protocol) information by a driver module operable on a mobile station prior to the mobile station sending a DHCP discovery message. The method includes storing, by the driver module, the DHCP information and redirecting the DHCP discovery message from an operating system DHCP process to the driver module. The method also includes performing DHCP hand-shaking in response to the DHCP discovery message.
摘要:
An inverter-driven resistor-ladder digital-to-analog (DAC) converter includes a resistor-ladder network that comprises a resistor for each bit signal of a multi-bit input signal. Each resistor of the resistor-ladder network comprises an input end and an output end. The input end of each resistor is coupled to a corresponding bit signal of the multi-bit input signal, and the output end of each resistor is coupled to an output node of the resistor-ladder network. An output voltage is generated at the output node that is based on the multi-bit input signal. In one exemplary embodiment, the multi-bit input signal is a sigma-delta (ΣΔ) modulated multi-bit input signal. In another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are related by a binary weighting. In still another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are substantially equal.
摘要:
Briefly, in accordance with one or more embodiments, a deterministic device behavior system detects if a device is entering a sensitive location. The sensitive location may be a movie theater, hospital, law enforcement agency, public restroom or locker room, meeting room, factory, or similar location. If the device enters the sensitive location, the device is triggered to query a location database to obtain one or more policies related to deterministic behavior. The policies are transmitted to the device to execute the deterministic behavior while the device is in the sensitive location. The deterministic behavior may include disabling one or more modules of the device such as the camera, microphone, speaker, annunciator, vibrator, and so on, where the use of such modules may be inappropriate or prohibited in the sensitive location. The policies may be implemented manually by the user or automatically by the device.
摘要:
A system to protect MAC control messages is presented. In one embodiment, the system comprises a processor, a memory coupled to the processor, and a communication device coupled to the processor to communicate wirelessly over multiple sub-channels in an orthogonal frequency division multiple access (OFDMA) wireless network. The communication device is operable to determine that a MAC control message is protected if an indicator within the MAC control message is set. The communication device validates, if the indicator is set, integrity of the MAC control message in conjunction with a CMAC (cipher-message authentication code) tuple concatenated with the MAC control message.
摘要:
A method and a system that multiplies a beamforming matrix by a unitary matrix that does not change the subspace of the beamforming matrix for form a converted matrix having a lower left triangle of zeros. A first column vector having a fewest number of elements of the converted matrix is quantized using a codebook and represented by a first codebook index. A Householder matrix is determined from the quantized first column vector and the converted matrix is multiplied by the Householder matrix. Quantizing, determining a Householder matrix from further column vectors of the converted matrix using a codebook and representing each respective column vector by further corresponding codebook index, and multiplying the converted matrix on the left by the determined Householder matrix for each respective column vector are recursively repeated. The first codebook index and further codebook indices are transmitted to a remote station for use in beamforming.