Linear Discrete-Time Oscillator Signal Synthesis
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Solution Overview
Problem
Conventional modulation and demodulation mechanisms in communication systems are inflexible, lacking the ability to efficiently adjust frequency, gain, and phase characteristics of oscillating signals.
Innovation Solution
A linear discrete-time oscillator is used to synthesize an oscillating signal with selectable frequency, gain, and phase characteristics, allowing for a single complex multiplication operation to mix the signal with an information signal, thereby altering its characteristics without requiring multiple multiplication stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional modulation and demodulation mechanisms are used, then signal processing can be performed, but the system lacks flexibility in adjusting frequency, gain, and phase characteristics
Solution Approach 1:
The patent applies parameter changes by using a linear discrete-time oscillator where frequency, gain, and phase characteristics are controlled through programmable parameters rather than fixed circuit components. The oscillator equations allow dynamic adjustment of these parameters to achieve flexible signal modulation and demodulation without requiring complex reconfiguration of the circuit architecture.
Solution Approach 2:
The patent implements universality by designing a single linear discrete-time oscillator that can perform multiple functions including frequency modulation, phase modulation, and gain control. This multi-functional approach eliminates the need for separate dedicated circuits for each modulation type, thereby reducing overall device complexity while maintaining high adaptability.
2Manufacturing precision
If multiple multiplication stages are used to alter signal characteristics, then precise control is achieved, but circuit complexity increases
Solution Approach 1:
The patent merges multiple signal processing functions into a single linear discrete-time oscillator structure. By combining frequency control, phase control, and gain control into one unified oscillator system, the patent achieves precise control over signal characteristics without requiring multiple separate multiplication stages, thereby reducing circuit complexity while maintaining manufacturing precision.
Data Source
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AI summary
An apparatus, and an associated method, for synthesizing a discrete-valued oscillating signal. Input parameters are provided that are determinative of the frequency, gain, and phase characteristics of the resultant, oscillating signal. The discrete-valued, oscillating signal is combinable with another signal to form a mixed signal of a desired frequency, gain, and phase characteristic using a single complex multiplication operation.