摘要:
Systems and methods for determining compositions of cover materials for electrolysis cells are provided. In one embodiment a system includes an aluminum electrolysis cell adapted to contain an electrolytic bath, a hopper configured to provide a cover material to the aluminum electrolysis cell, where the cover material includes alumina and electrolytic bath particulate, an imaging device configured to capture images of the cover material, an image processor configured to analyze the images and output imaging data relating to the cover material, and a data analyzer configured to analyze the imaging data and output a determined cover material composition in the form of cover material information. The cover material information may be used to manage operation of the aluminum electrolysis cell, such as via adjusting the composition or feed rate of the cover material.
摘要:
A system and method for transmitting client phase information to a host device over a bidirectional data link is described. Embodiments include detecting a phase of a clock signal relative to a data signal transmitted between a host device and a client device over a bidirectional data link. The data link includes one or more data lines each configured to transmit a corresponding bit of the data signal. The phase is encoded as client phase information and transmitted between the host and client device over the one or more data lines. The client phase information is transmitted during an electrical turnaround time period of the bidirectional data link between a read and write operation over the data link.
摘要:
A method and apparatus for compensating for age related degradation in the performance of integrated circuits. In one embodiment, the phase-locked loop (PLL) charge pump is provided with multiple legs that can be selectively enabled or disabled to compensate for the effects of aging. In an alternate embodiment, the power supply voltage control codes can be increased or decreased to compensate for aging effects. In another embodiment, a ring oscillator is used to approximate the effects of NBTI. In this embodiment, the frequency domain is converted to time domain using digital counters and programmable power supply control words are used to change the operating parameters of the power supply to compensate for aging effects.
摘要:
A device for protecting a direct current electrical power supply from disturbances caused by connecting to it or disconnecting from it an electronic system comprises at least one variable impedance component. The impedance of this component is controlled so that it has a very high first value when said electronic system is disconnected, a very low second value when said system is connected, a value varying slowly from said first value to said second value on changing from the disconnected state to the connected state and a value varying quickly from said second value to said first value on changing from the connected state to the disconnected state. The output current from said variable impedance component constitutes the supply current of said electronic system.
摘要:
A current limiter circuit receiving an input current having a non-zero DC component whose value lies in a wide range of current values, and delivering a limited output current whose value lies in a narrower range of current values. The limiter comprises a series connection of a first asymmetrical conductivity element followed by a second asymmetrical conductivity element which is followed in turn by a resistive element, the series connection extending between two poles of a voltage source so that a bias current flows through the asymmetrical conductivity elements and makes them conductive. The input current is applied to the common point between the two asymmetrical conductivity elements and the current-limited output is taken from the common point between the second asymmetrical conductivity element and the resistive element. The direction of the input current flow is such that it splits into two fractions, with one of the fractions being subtracted from the bias current in the second asymmetrical conductivity element, while the other fraction is added to the bias current in the first asymmetrical conducitivity element, thereby increasing the dynamic resistance of the second asymmetrical conductivity element and reducing the dynamic resistance of the asymmetrical conductivity element, thus limiting the output current.
摘要:
A system and method for detecting errors in high-speed asymmetric interfaces are described. Embodiments include transmitting digital data between a first system component and a second system component over a bidirectional interface, wherein the first component is significantly more intelligent than the second component. The first component receives a signature from the second component over a line of the interface concurrent with READ and WRITE operations over the interface. The latency associated with transmission of a signature from the second component to the first component is the time taken for the second component to compute a signature. The signature received is compared to a signature stored by the first component. Both signatures correspond to a particular READ or WRITE command. Based on the comparison, the first component determines whether the READ or WRITE operation was successful, and directs the second component as necessary.
摘要:
An asymmetrical IO method and system are described. In one embodiment, a host device includes shared resources for data synchronization of the host device and a client device. The shared resources include a shared phase interpolator. In an embodiment, data lines between the host and client are also used to transmit phase information from the client device to the host device, obviating the need for additional, dedicated lines or pins.
摘要:
A system and method for detecting errors in high-speed asymmetric interfaces are described. Embodiments include transmitting digital data between a first system component and a second system component over a bidirectional interface, wherein the first component is significantly more intelligent than the second component. The first component controls many operations of the second component, including receiving a signature from the second component over an existing line of the interface. The signature received is compared to a signature stored by the first component. Both signatures correspond to a transaction over the interface. Based on the comparison, the first component determines whether the transaction was successful, and directs the second component as necessary.
摘要:
Embodiments of a power consumption reduction process for memory interfaces are described. A power management process reduces the amount of time that current flows in a high or low terminated, current or voltage mode unipolar bus interface by reducing the amount of time the bus remains in a logic state that requires current flow.
摘要:
A system and method for detecting errors in high-speed asymmetric interfaces are described. Embodiments include transmitting digital data between a first system component and a second system component over a bidirectional interface, wherein the first component is significantly more intelligent than the second component. The first component receives a signature from the second component over a line of the interface concurrent with READ and WRITE operations over the interface. The latency associated with transmission of a signature from the second component to the first component is the time taken for the second component to compute a signature. The signature received is compared to a signature stored by the first component. Both signatures correspond to a particular READ or WRITE command. Based on the comparison, the first component determines whether the READ or WRITE operation was successful, and directs the second component as necessary.