In addition to the combinatorial logic functions, sequential logic functions may also be used to provide sequential PWM signals, e.g., synchronous sequential, asynchronous sequential, and/or sequential-combinatorial PWM signals.KRIS BryanBOWLING Stephen...
While some low-speed asynchronous circuits can function correctly with some clock discrepancy, high-speed data circuits cannot. The solution to this problem is simply to derive the receiving clock from the transmitted data transitions. A number of techniques have been developed over the years to ...
(tied to ground), OE* is an asynchronous control which will prevent data from being driven from the part in a read cycle if it is inactive (high) prior to CAS* falling and remains inactive beyond CAS* rising. If these setup and hold conditions are not met, then the read data may be...
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Stress wave-based communication has great potential for succeeding in subsea environments where many conventional methods would otherwise face excessive difficulty, and it can benefit logging well by using the drill string as a conduit for stress wave pr
29. [ 5.2] Write an entity declaration for a 4-bit counter with an asynchronous reset input. Include a process in the entity declaration that measures the duration of each reset pulse and reports the duration at the end of each pulse.30....
An implantable cardiac pacer is instructable to vary the stimulation pulse interval, the stimulation pulse width, the stimulation pulse amplitude, the pacer sensitivity, the refractory period and the mode (demand or asynchronous).A master parameter control circuit is provided to vary selected parameters...
light beam, such as a pulsed UV laser beam, to transfer information and in particular to expose a photosensitive surface. In some embodiments of the invention, the surface is exposed in a raster pattern and information modulation is asynchronous with the pulse repetition rate of the light pulses...
1. A distributed pulse-width modulation system, comprising: an array of pulse-width modulation elements, each element comprising: a digital memory for storing a multi-bit digital value, and a drive circuit that drives an output device in response to the multi-bit digital value stored in the ...
Conversely, asynchronous systems have no global clock distribution, but instead require self-timed circuit techniques. Synchronous systems require synchronization of the setting of latches to the global clock. Referring to FIG. 1, a conventional prior-art level sensitive D-latch is shown. The ...