摘要:
System, methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. A first transition may be detected in a signal carried on a data lane of a data communications link or carried on a timing lane of the data communications link and an edge may be generated on a receiver clock signal based on the first transition. Data may be captured from the data lane using the receiver clock signal. The timing lane may carry a clock signal, a strobe signal or another signal providing timing information. The strobe signal may transition between signaling states when no state transition occurs on any of a plurality of data lanes at a boundary between consecutive data periods.
摘要:
A bidirectional conversion apparatus for connection via an electrical conductor based transmission line to a base apparatus providing a first information signal and control signals. The bidirectional conversion apparatus is adapted to receive/transmit from/on the transmission line the first signal and the control signals; the apparatus comprises a processing module structured to process the first signal to generate a second information signal and vice versa; the second signal being adapted to be transmitted/received by an antenna device connectable to the bidirectional conversion apparatus.
摘要:
The invention relates, among other things, to a clock signal recovery device (10) with a digital data signal input (ElO) for the input of a digital data signal (DATA) and a clock signal output (TlO) for the output of a recovered clock signal (QO), wherein the digital data signal has a given nominal clock signal frequency (fn). According to the invention, the clock signal recovery device consists of a digital circuit.
摘要:
The invention relates to a device for extracting a clock signal from a baseband serial signal, consisting of: an injection-locked oscillator (19), and a phase-lock loop (25) including a digital phase detector (26). The oscillator (19) includes a digital input (24) for controlling the value of the frequency thereof and the phase-lock loop (25) includes a counting circuit (30, 35) which totals the relative values of the digital signal delivered by the digital phase detector (26) and delivers a digital control signal for the oscillator (19).
摘要:
The present invention relates to a clock data recovery circuit (600) comprising a data sampling circuit (601) to generate data samples of an input data signal (D N ) response to a first clock signal (210); an edge sampling circuit (607) to generate edge samples of the input data signal in response to a second clock signal (610); and a clock recovery circuit (605) coupled to receive the edge samples and the data samples, the clock recovery circuit being configured to adjust a phase of the second clock signal according to the state of one of the edge samples upon determining that a sequence of at least three of the data samples matches at least one sample pattern of a plurality of predetermined sample patterns.
摘要:
The present invention relates to a data communication system comprising a master and at least a slave unit connected to the master unit via a bus. The master unit and the slave unit are adapted to communicate with each other using a predetermined protocol, wherein each slave unit comprises an oscillator (1) to generate a slave system frequency. In order to avoid complicated and expensive quartz oscillators etc. the invention proposes to use in the slave unit an adjustable oscillator and a correction unit (7) to adjust the frequency of the oscillator (1) depending on information included in the protocol. Preferably, the oscillator (1) is a ring oscillator comprising a plurality of inverters connected in a ring.
摘要:
A clock recovery circuit (10) for a superconductor system that enables the phase of a system clock to be instantaneously reset without any pulse interaction. The clock recovery circuit (10) includes a Josephson transmission line oscillator loop (14) of length 2T, where T is equal to one clock period. First and second data inputs (16, 18) are for injecting a data pulse onto the oscillator loop (14). A pulse generator (24) is for injecting an initial clock pulse onto the oscillator loop (14) that is output as periodic clock signals. An output tap (12) is for outputting the data pulse from one of the first and second data inputs (16, 18), and the periodic clock signals in the absence of the data pulse. When the data pulse is input on one of first and second output taps (32, 34), the clock phase is instantaneously reset.
摘要:
A serial input/output method and receiver include an receiver portion to receive an analog differential serial input and sample the input to provide data and error signals, an equalization feedback loop responsive to the data and error signals to adjust the receiver portion, a phase feedback mechanism separate from the equalization feedback loop to provide a phase error, and a clock data recovery block coupled to receive the phase error to perform timing recovery for the receiver portion independent of the equalization feedback to adjust the sampling.