Abstract:
A method involving: detecting a first signal characterized by a periodically occurring first event; detecting a second signal characterized by a periodically occurring second event; and based on both the detected first and second signals, generating a third signal characterized by a periodically occurring third event, wherein generating the third signal involves automatically adjusting the phase of the third signal so that the periodically occurring third event occurs at a predetermined location between the first and second events of the first and second signals.
Abstract:
A system for generating a local clock signal, the system including: a skew correction circuit for receiving first and second periodic signals that have associated skews, wherein the skew correction circuit is configured to use the received first and second periodic signals to generate a third periodic signal that has a fixed skew between the skews of the first and second periodic signals; a phase detector with a first input that receives the third periodic signal from the skew correction circuit and a second input; a variable oscillator for generating an output signal having a frequency that is controlled by the phase detector; and a frequency divider for dividing the frequency of the oscillator's output signal, wherein the frequency-divided output signal is fed back to the second input of the phase detector, and wherein the local clock signal is derived from the oscillator's output signal.
Abstract:
A system for generating a local clock signal, the system including: a skew correction circuit for receiving first and second periodic signals that have associated skews, wherein the skew correction circuit is configured to use the received first and second periodic signals to generate a third periodic signal that has a fixed skew between the skews of the first and second periodic signals; a phase detector with a first input that receives the third periodic signal from the skew correction circuit and a second input; a variable oscillator for generating an output signal having a frequency that is controlled by the phase detector; and a frequency divider for dividing the frequency of the oscillator's output signal, wherein the frequency-divided output signal is fed back to the second input of the phase detector, and wherein the local clock signal is derived from the oscillator's output signal.
Abstract:
A method involving: detecting a first signal characterized by a periodically occurring first event; detecting a second signal characterized by a periodically occurring second event; and based on both the detected first and second signals, generating a third signal characterized by a periodically occurring third event, wherein generating the third signal involves automatically adjusting the phase of the third signal so that the periodically occurring third event occurs at a predetermined location between the first and second events of the first and second signals.
Abstract:
A transmitter system including: a bidirectional signaling (BDS) network having first and second networks for carrying first and second carrier signals, and having a set of n phase synchronous location pairs (a i , b i ),; and also including tunable transmitter circuits for driving an antenna array, each tunable transmitter circuit having an output line for carrying an output signal and first and second input lines electrically connected to the first and second networks of the BDS network at locations of a corresponding one of the set of phase synchronous location pairs, and including a multiplier having a first input electrically connected to the first input line of that tunable transmitter circuit; a phase setting circuit electrically connected to the multiplier for controlling the phase of the output signal of that tunable transmitter circuit; and an amplitude setting circuit for controlling the amplitude of the output signal of that tunable transmitter circuit.
Abstract:
A method involving: in a signal distribution system including a first line and a second line both of which extend from the first end to the second end of the signal distribution system, introducing a first global clock signal into the first line so that the first global clock signal propagates from the first end to the second end of the line; introducing a second sinusoidal global clock signal into the second line so that the second global clock signal propagates from the second end to the first end of the line; and in each of a plurality of local clocking regions located along the signal distribution system, detecting the first and second global clock signals; multiplying the detected first and second clock signal for that local clocking region together to generate a combined signal, and deriving a local clock signal for that local clocking region from the combined signal.
Abstract:
A system for generating a local clock signal, the system including: a skew correction circuit for receiving first and second periodic signals that have associated skews, wherein the skew correction circuit is configured to use the received first and second periodic signals to generate a third periodic signal that has a fixed skew between the skews of the first and second periodic signals; a phase detector with a first input that receives the third periodic signal from the skew correction circuit and a second input; a variable oscillator for generating an output signal having a frequency that is controlled by the phase detector; and a frequency divider for dividing the frequency of the oscillator's output signal, wherein the frequency-divided output signal is fed back to the second input of the phase detector, and wherein the local clock signal is derived from the oscillator's output signal.
Abstract:
A method and apparatus for receiving a first signal characterized by a periodically occurring first event; receiving a second signal characterized by a periodically occurring second event; delaying the first signal by a controllable amount of delay to generate a third signal characterized by a periodically occurring third event; and based on relative timing of the first and second signals, controlling the amount of delay so that the periodically occurring third event occurs at a predetermined location between the first and second events of the first and second signals.
Abstract:
A method and system of applying modulated carrier signals to tree networks and processing signals tapped from the tree networks to generate output signals with phase-synchronized carriers are disclosed.
Abstract:
A method involving: distributing two clock signals over a clock signal distribution system; in each of a plurality local clocking regions located along the signal distribution system, detecting the two clock signals and generating therefrom a local clock signal for that local clocking region, wherein the generated local clock signals for at least some of the plurality of local clocking regions are in a first group all of which are aligned in phase with each other and the generated local clock signals for the remainder of the plurality of local clocking regions are in a second group all of which are aligned in phase with each other, and wherein the phase of the first group is out of phase with the phase of the second group by a predetermined amount; and bringing all of the clock signals for the plurality of local clocking regions into phase alignment so that the phase of the first group is in phase with the phase of the second group.