38 results about "Time base generator" patented technology

Systems, apparatus, methods and computer program products are provided for causing a dataframe to be emitted at an air interface of an antenna. A memory stores a transmission to antenna delay value (TAD). An offset calculator calculates an offset value based on an epoch of a global timebase generator and the transmission to antenna delay value (TAD). An interface controller in communication with the offset calculator communicates a segment synchronization signal and a field synchronization signal based on the offset value.

Signal-integrity measurement systems and methods utilizing unique time-base generation techniques for controlling the sampling of one or more signals under test. A time-base generator made in accordance with the present disclosure includes a phase filter and modulation circuitry that generates a rapidly varying phase signal as a function of the output of a sigma-delta modulator. The phase filter filters unwanted high-frequency phase components from the rapidly varying phase signal. The filtered signal is used to clock one or more samplers so as to create sampling instances of the signal(s) under test. The sampling instances are then analyze using any one or more of a variety of techniques suited to the type of signal(s) under test.

A high-speed signal testing system that includes a digital circuitry for providing a pattern tester with oscilloscope functionality at minimal implementation cost. The digital circuitry includes a time-base generator that provides a high-speed repeating time-base signal. The time-base signal, in conjunction with a sub-sampler and an accumulation memory, allows the system to zoom in on, and analyze portions of, one or more bits of interest in a repeating pattern present on the signal under test. Such portions of interest include rising and falling edges and constant high and low bit values.

The invention discloses a relative device for receiving and processing navigation satellite reflected signal, uses the parallel multi-passage relative module as the core, according to the CPU configuration information, gives relative power outputs at various chip/Doppler time for reflected signal. Parallel multi-passage relative module is controlled by passage configuration module, and is connected with time-base generator, UART interface and DSP interface, every module accepts logistic control of reset control. The device ensures early software development of design, modeling, system-level simulation, IP core integration, and combined verification, and is suitable for various receiver systems and design of configuration function. The invention can process GPS direct signal and reflected signal at the same time, uses direct signal to navigate and position, outputs the power relating to reflected signal under the control of DSP at various delay times.

A frequency synthesizer for a time base generator of a level measuring device which works according to the radar principle, with at least one first output for output of a first frequency signal, with at least one second output for output of a second frequency signal, and with a reference oscillator for producing a reference frequency signal, the first frequency signal and the second frequency signal having a small difference frequency relative to one another, the first frequency signal being producible by interaction of the reference oscillator with a direct digital synthesizer. The first frequency signal and second frequency signal can be generated with especially low noise by the second frequency signal being derived from the reference oscillator without interconnection of a direct digital synthesizer and the direct digital synthesizer being operated such that only a noise spectrum is produced which is at least partially minimized.

The invention relates to an intelligent lighting control system, an intelligent lighting control method and an intelligent lighting system. The intelligent lighting control system includes a main controller, a PWM data buffer controller and a time base generator; the main controller is suitable for receiving a dimming instruction inputted by a user, generating corresponding target pulse width adjustment parameters according to the dimming instruction, sending the target pulse width adjustment parameters to the PWM data buffer controller, and sending a PWM wave generation instruction to the PWMdata buffer controller; the PWM data buffer controller is suitable for storing the target pulse width adjustment parameters, and controlling the time base generator to generate PWM waves corresponding to the target pulse width adjustment parameters when receiving the PWM wave generation instruction; and the time base generator is suitable for generating the PWM waves corresponding to the target pulse width adjustment parameters, and inputting the generated PWM waves to an LED driving circuit. With the intelligent lighting control system, the intelligent lighting control method and the intelligent lighting system provided by the technical schemes of the invention adopted, the requirements of an LED lighting device for MCU computing performance during dimming can be lowered.

A time base generator and method for providing a first clock signal and a second clock signal comprising generating the first clock signal at a first clock frequency, dividing the first clock frequency by a first integer to produce a first auxiliary signal, dividing the second clock signal by a second integer to produce a second auxiliary signal, generating an error signal by individually weighting and comparing cycle durations or phasing of the first and second auxiliary signals, and generating the second clock signal by a voltage-controlled oscillator controlled by the error signal such that two clock signals of slightly different frequencies with defined time or phase delay are provided.

The invention discloses a universal oscilloscope with a storage function, and belongs to the field of electronic measuring instruments. The universal oscilloscope comprises a Y input circuit, a Y front amplifying circuit, a delay line, a rear amplifying circuit, an oscilloscope tube, a levelness generator, a time-base generator, a trigger waveshaping circuit, a low-pass filter circuit and a single-chip microcomputer. The universal oscilloscope can store measured information in real time and replay an aperiodic single-pulse signal as required or in a one step mode or continuously, and an engineer can completely observe the waveform, amplitude and pulse width of the signal.

A method and apparatus for resolving time base-generated errors from sampling scope-based measurements. Mutually synchronized repetitive waveform-to-be-analyzed signals (WAS) and repetitive sinusoidal reference signals (RS) are respectively applied to a first channel and a second channel of a sampling scope. A time base generator applies a sampling signal to the first and second channels. An average sine wave period T_av for k samples of RS is determined, followed by determination of phase error φ_k for each of the k samples, corresponding to phase differences between an ideal sine wave signal and the applied reference sinusoidal signal. Time base error values d_k for k samples are calculated from d_k=φ_k*T_av/2π. Error values d_k correct time base errors in the sampling signal, and the WAS is re-sampled at sampling times adjusted by d_k.

The invention discloses a liquid crystal driving chip capable of reducing the number of pins, and belongs to the technical field of liquid crystal driving chips. The liquid crystal driving chip capable of reducing the number of pins comprises an LCD drive and bias circuit, a display RAM, a time base generator, a serial interface module, a serial port module and a serial port module. The LCD driving and biasing circuit, the display RAM and the time base generator are all connected with the serial interface module; the display RAM is connected with the LCD driving and biasing circuit; the time base generator is connected with the LCD driving and biasing circuit, four male electrodes COM and twelve segment electrodes SEG are arranged on the LCD driving and biasing circuit, each male electrodeCOM corresponds to three paths of COM output ends, and each segment electrode SEG corresponds to one path of SEG output end. According to the liquid crystal driving chip capable of reducing the number of the pins, the number of the pins is reduced, and cost is reduced.

The invention provides a fixed time dynamic region tracking control method based on Time Base Generator, which comprises the following steps of: establishing a fixed time distributed state observer to estimate the central position of a tracked area, and then setting a reference point according to the central position, and finally, designing a fixed time controller to enable the multiple agents to track the reference point within any given time and keep the reference point all the time, so that fixed time dynamic region tracking is realized. According to the method, the stable time is not affected by the initial state of the system, the multi-agent system can track the designated area within any given time, the fixed time method based on Time-Base Generator has smaller energy input and more concise system parameters, and the applicable range of the system is widened.