6results about "Continuously circulated pulse counters" patented technology

In a first aspect, the disclosure provides an apparatus (412a) for wireless communication, comprising: a first clock loop (420) comprising a first plurality of latches (422, 424) that generate a first plurality of clock signals (I, Q) having a corresponding first plurality of phases (I, Q); and a second clock loop (430) comprising a second plurality of latches (432, 434) generating a second plurality of clock signals (I45, Q45) having a corresponding second plurality of phases, where the first clock loop is configured to be enabled or disabled based on the first enable signal and the second clock loop is configured to be enabled or disabled based on the second enable signal. And wherein the second clock loop is configured to be enabled or disabled based on a second enable signal (en).

A divider circuit is disclosed. The divider circuit includes a pair of differential latch circuits. The divider circuit receives complementary clock signals as a pair of differential signals. The divider circuit generates frequency divided signals based on the complementary clock signals, inverted versions of the complementary clock signals, and input signals. The frequency divided signals may be substantially ripple-free. Further, the frequency divided signals remain substantially ripple-free in a presence of the skew between the complementary clock signals.

A semiconductor device includes a pulse input circuit including flip-flops constituting each of two front-stage counters having different holding states from each other and configured such that first pulses from an even-stage ring circuit are input to each of the two front-stage counters, an edge detection circuit configured to detect edges of outputs of the two front-stage counters and output a second pulse having a predetermined pulse width larger than a predetermined value based on the edge, and a counter circuit including a rear-stage counter to which the second pulse is input. The edge detection circuit is configured to output the second pulse or a stepwise signal when a pulse width of the first pulse is smaller than the predetermined value.

A high frequency electromagnetic radiation generation device is disclosed that includes a high voltage input, a nonlinear transmission line, an antenna, and a pulse recirculating circuit. In some embodiments, the high voltage input may be configured to receive electrical pulses having a first peak voltage that is greater than 5 kV, and / or may be electrically coupled with the nonlinear transmission line. The antenna may be electrically coupled with the nonlinear transmission line and / or may radiate electromagnetic radiation at a frequency greater than 100 MHz about a voltage greater than 5 kV. The pulse recirculating may be electrically coupled with the high voltage input and the antenna. The pulse recirculating circuit may include a diode; a low pass filter; and a delay line. In some embodiments, unradiated energy from the antenna is directed through the pulse recirculating circuit to the nonlinear transmission line with a delay of less than 100 ns.

This disclosure provides in a first aspect, an apparatus (412a) for wireless communications including a first clock loop (420) comprising a first plurality of latches (422, 424) generating a first plurality of clock signals (I, Q) with a corresponding first plurality of phases (I, Q); and a second clock loop (430) comprising a second plurality of latches (432, 434) generating a second plurality of clock signals (I45, Q45) with a corresponding second plurality of phases, wherein the first clock loop is configured to be enabled or disabled based on a first enable signal, and wherein the second clock loop is configured to be enabled or disabled based on a second enable signal (en).

This invention discloses a frequency divider. The frequency divider includes at least two filtering units, with the first end of each filtering unit connected to the first end of the frequency divider, and the second end of each filtering unit serving as a second end of the frequency divider. Each filtering unit includes at least one inductor, and the signal transmission directions of adjacent inductors are opposite, which can reduce the mutual interference between the magnetic fields generated by adjacent inductors, thereby reducing the mutual interference between filtering units and improving the isolation between different channels of the frequency divider.