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Channel: numerically controlled oscillator patent applications
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Method and apparatus for adjusting reference oscillator frequency in a mobile...

A method and apparatus for using a conventional oscillator in a cellular telephone transceiver as a source of a reference signal for a GPS receiver. In one embodiment, the method comprises using a...

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Direct digital synthesizer for reference frequency generation

A direct digital frequency synthesizer having a multi-modulus divider, a numerically controlled oscillator and a programmable delay generator. The multi-modulus divider receives an input clock having...

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Method and apparatus for process magnification adjustment

A magnification adjustment method for a document processing system having a fixed frequency clock source providing a fixed frequency output signal to a plurality of raster output scanners (ROSs) and a...

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Multiple clock signal generation from a common oscillator

A system and method of providing a clock signal to a navigation satellite receiver in a device is disclosed. A clock signal generated by a voltage controlled temperature compensated crystal oscillator...

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Numerically controlled oscillator and oscillation method for generating...

Numerically controlled oscillators and oscillation methods for generating function values in respective clock cycles by using a recurrence equation are provided. The oscillation circuit generates, in...

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Method for building a vibration-resistant navigational satellite signals...

The effects of shock and vibration on a navigation receiver processing satellite signals received from global navigation satellites are reduced by controlling the frequency and the phase of the...

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Data processing unit and signal receiver including the data processing unit

The data processing unit () for a receiver of signals carrying information () includes a clock and data recovery circuit () on the basis of a data signal (DOUT), and a processor circuit () connected...

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Method and apparatus for reducing signal edge jitter in an output signal from...

A method for reducing signal edge jitter in an output signal from a numerically controlled oscillator includes processing an input signal with a first accumulator to provide a first accumulator output...

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Sampling rate converter data flow control mechanism

A sampling rate converter that converts an incoming stream of data, clocked at a first frequency, to an output stream of data that can be clocked at a second frequency is described. The sampling rate...

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Direct digital synthesizer for reference frequency generation

A direct digital frequency synthesizer includes a multi-modulus divider, a numerically controlled oscillator and a programmable delay generator. The divider receives an input clock having an input...

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Clock generator

A clock generator receives first and second clock signals, and input representing a desired frequency ratio. A comparison is made between frequencies of an output clock signal and the first clock...

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Reconfigurable correlator for a navigation system

Systems and methods are provided for a correlator system. The system includes a plurality of numerically controlled oscillators and a multiplier configured to receive an input stream representing a...

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Clock recovery system

In a first embodiment of the present invention, a clock recovery system is provided comprising: a phase comparator; an integrator coupled to the phase comparator; a numerically controlled oscillator...

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Method and apparatus for performing clock extraction

A method and apparatus for performing clock extraction are provided. The method includes: performing edge analysis on a Training Sequence Equalization (TSEQ) pattern carried by a set of received...

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Accelerated carrier acquisition method for a digital communication receiver

A method of accelerated carrier signal acquisition for a digital communication receiver, the method comprising receiving a carrier signal by a receiver comprising a carrier recovery loop (CRL),...

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System and method to calibrate the frequency response of an electronic filter

A system and method provide for calibrating the frequency response of an electronic filter. The system and method include a radio transmitter with both in-phase and quadrature baseband paths. Each...

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Numerically controlled oscillator and digital phase-locked loop

A digital phase-locked loop is provided. The digital phase-locked loop includes: a phase-locked loop, for generating an output frequency according to a reference frequency; and a...

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Systems and methods for enhancing gnss numerically controlled oscillators

Systems and methods for enhancing numerically controlled oscillators are provided. In certain embodiments, a numerically controlled oscillator enhancer includes a desired rate interface configured to...

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Low complexity non-integer adaptive sample rate conversion

Generally described herein are methods and systems for sample rate conversion of non-integer and integer factors. In one or more embodiments an apparatus can include a sample rate converter that can...

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Digital system and method of estimating non-energy parameters of signal carrier

Navigation satellite receivers have a large number of channels, where phase discriminators and loop filter of a PLL operate in phase with data bits and control of numerically controlled oscillator...

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