Location History:
- Chandler, AZ (US) (1990)
- Mesa, AZ (US) (1984 - 1992)
Company Filing History:
Years Active: 1984-1992
Title: The Innovative Contributions of Harold L. Spangler
Introduction
Harold L. Spangler is a noteworthy inventor based in Mesa, AZ, whose contributions to the field of electronics are recognized through his impressive portfolio of five patents. Spangler’s work primarily focuses on advancements in voltage-controlled oscillators and related technologies, reflecting his dedication to innovation and excellence in engineering.
Latest Patents
Among Harold L. Spangler's most recent patents is the "Voltage Controlled Oscillator Having Controlled Bias Voltage." This invention features an oscillator circuit with first and second terminals, where an external inductance is connected. It utilizes a frequency control voltage (V.sub.F) applied through a bias circuit to the second terminal, allowing for the variation of the center frequency. Additionally, this oscillator circuit may incorporate an Automatic Gain Control (AGC) circuit or a modulation circuit connected to it, along with an output amplifier designed to match the input impedance of a load circuit.
Another significant patent is the "ECL Gate Having Dummy Load for Substantially Reducing Skew." This invention introduces an active dummy load that effectively reduces skews for input signals of a CML or ECL series gate. By generating selectable capacitance, it adjusts the delay time of the output signal in response to changes in the input signal state.
Career Highlights
Harold L. Spangler’s career is prominently marked by his role at Motorola Corporation, a leading company in the field of telecommunications and electronics. His innovative spirit and technical expertise have significantly contributed to Motorola’s ongoing legacy of excellence and advancement in technology.
Collaborations
Throughout his career, Spangler has had the opportunity to collaborate with talented individuals such as Rajnish Maini and Gregory A. Davis. Together, they have worked on various projects that have not only enhanced their skills but also pushed the boundaries of innovation in their respective fields.
Conclusion
Harold L. Spangler’s contributions to the field of electronics through his patents are a testament to his creative ingenuity and commitment to innovation. His work continues to inspire future inventors and engineers, highlighting the vital role of patented inventions in the advancement of technology.